Service manual

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Service Manual

ESIE05-03

RZQ71~125B8V3B

RZQ100~140B7W1B

Sky-Air Inverter R-410A B series

ESIE05-03.book Page 1 Wednesday, April 6, 2005 4:09 PM

Summary of content (326 pages)

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ESIE05-03.book Page i Wednesday, April 6, 2005 4:09 PM ESIE05-03 Table of Contents 1 1 Introduction 1.1 1.2 1.3 About This Manual .................................................................................. Combination Overview ............................................................................ Precautions on Handling New Refrigerants ............................................ i–i i–ii i–iv Part 1 System Outline 1 3 General Outline: Outdoor Units 1.1 1.2 1.3 1.
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ESIE05-03.book Page ii Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 5 6 3 Wiring Diagrams 5.1 5.2 5.3 5.4 What Is in This Chapter? ......................................................................... RZQ71B8V3B .......................................................................................... RZQ100~125B8V3B ................................................................................ RZQ100~140B7W1B ...............................................................................
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ESIE05-03.book Page iii Wednesday, April 6, 2005 4:09 PM ESIE05-03 Part 2 Functional Description 1 General Functionality 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 2 What Is in This Chapter? ........................................................................ Functions of Thermistors ........................................................................ Forced Operating Mode (Emergency Operation)....................................
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ESIE05-03.book Page iv Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 Part 3 Troubleshooting 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 3 4 Troubleshooting 2 iv 3–3 3–4 3–5 3–25 3–26 3–27 3–31 3–33 3–35 3–38 3–39 Error Codes: Indoor Units 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 5 What Is in This Chapter? ......................................................................... General Troubleshooting Flowchart.........................................................
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ESIE05-03.book Page v Wednesday, April 6, 2005 4:09 PM ESIE05-03 3 Error Codes: Outdoor Units 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 3.20 3.21 3.22 3.23 4 3–57 3–58 3–59 3–61 3–63 3–65 3–67 3–69 3–71 3–73 3–74 3–76 3–77 3–79 3–80 3–82 3–84 3–86 3–88 3–90 3–91 3–92 3–93 4.3 4.4 4.5 4.6 What Is in This Chapter? ........................................................................ 3–95 Malfunction of Transmission between Indoor and Outdoor Unit .........
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ESIE05-03.book Page vi Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 Part 4 Commissioning and Test Run 1 3 2 4 Pre-Test Run Checks 1.1 1.2 1.3 What Is in This Chapter? ......................................................................... Test Run Checks ..................................................................................... Setting the Wireless Remote Controller................................................... 4–3 4–4 4–5 2.1 2.2 What Is in This Chapter? .......................
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ESIE05-03.book Page vii Wednesday, April 6, 2005 4:09 PM ESIE05-03 Part 5 Disassembly and Maintenance 1 1 Disassembly and Maintenance: Outdoor Units 1.1 1.2 What Is in This Chapter? ........................................................................ RZQ71~140B ..........................................................................................
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ESIE05-03.book Page i Wednesday, April 6, 2005 4:09 PM ESIE05-03 Introduction Part 0 1 Introduction 1.1 About This Manual Target group This service manual is intended for and should only be used by qualified engineers. Purpose of this manual This service manual contains all the information you need to do the necessary repair and maintenance tasks for the Sky Air RZQ single and three phase, 71~140 class.
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ESIE05-03.book Page iv Wednesday, April 6, 2005 4:09 PM Introduction 1 ESIE05-03 1.3 Precautions on Handling New Refrigerants 1.3.1 Outline About Refrigerant R410A P Characteristics of new refrigerant, R410A 1 Performance Almost the same performance as R22 and R407C. 2 Pressure Working pressure is approx. 1.4 times more than R22 and R407C. 3 Refrigerant composition Few problems in composition control, since it is a Quasi-azeotropic mixture refrigerant.
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ESIE05-03.book Page vi Wednesday, April 6, 2005 4:09 PM Introduction 1 1.3.2 ESIE05-03 Refrigerant Cylinders Cylinder specifications P The cylinder is painted refrigerant color (pink). P The cylinder valve is equipped with a siphon tube. Cylilinder Siphon tube 3 4 5 P Handling of cylinders vi Note: 1 Refrigerant can be charged in liquid state with cylinder in upright position. 2 Do not lay cylinder on its side during charging, since it causes refrigerant in gas state to enter the system.
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ESIE05-03.book Page vii Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.3.4 Introduction Service Tools R410A is used under higher working pressure, compared to previous refrigerants (R22,R407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems.
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ESIE05-03.book Page viii Wednesday, April 6, 2005 4:09 PM Introduction 1 ESIE05-03 Copper tube material and thickness R407C Pipe size 3 R410A Material Thickness tmmj Material Thickness tmmj φ6.4 O 0.8 O 0.8 φ9.5 O 0.8 O 0.8 φ12.7 O 0.8 O 0.8 φ15.9 O 1.0 O 1.0 φ19.1 O 1.0 1/2H 1.0 * O: Soft (Annealed) H: Hard (Drawn) Flaring tool 4 5 Flare gauge P • Specifications Dimension A Nominal size viii A +0 -0.4 Tube O.D.
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ESIE05-03.book Page ix Wednesday, April 6, 2005 4:09 PM ESIE05-03 Introduction P • Differences Change of dimension A Dimension A For class-1: R407C For class-2: R410A Conventional flaring tools can be used when the work process is changed. (change of work process) Previously, a pipe extension margin of 0 to 0.5mm was provided for flaring. For R410A air conditioners, perform pipe flaring with a pipe extension margin of 1.0 to 1.5 mm.
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ESIE05-03.book Page x Wednesday, April 6, 2005 4:09 PM Introduction 1 ESIE05-03 Vacuum pump with check valve Vacuum pump adaptor (Reverse flow preventive vacuum adaptor) P • 3 • P • • 4 Specifications Discharge speed 50 l/min (50Hz) 60 l/min (60Hz) Suction port UNF7/16-20(1/4 Flare) UNF1/2-20(5/16 Flare) with adaptor z Maximum degree of vacuum –100.7 kpa ( 5 torr – 755 mmHg) Differences Equipped with function to prevent reverse oil flow Previous vacuum pump can be used by installing adaptor.
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ESIE05-03.book Page xi Wednesday, April 6, 2005 4:09 PM ESIE05-03 Introduction Gauge manifold for R410A P • • • • • P • • Specifications High pressure gauge - 0.1 to 5.3 MPa (-76 cmHg to 53 kg/cm2) Low pressure gauge - 0.1 to 3.8 MPa (-76 cmHg to 38 kg/cm2) 1/4" → 5/16" (2min → 2.5min) No oil is used in pressure test of gauges. → For prevention of contamination Temperature scale indicates the relationship between pressure and temperature in gas saturated state.
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ESIE05-03.book Page xii Wednesday, April 6, 2005 4:09 PM Introduction 1 ESIE05-03 Charging cylinder Can not be used P • 3 P • Specifications Use weigher for refrigerant charge listed below to charge directly from refrigerant cylinder. Differences The cylinder can not be used for mixed refrigerant since mixing ratio is changed during charging. When R410A is charged in liquid state using charging cylinder, foaming phenomenon is generated inside charging cylinder.
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ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM ESIE05-03 General Outline: Outdoor Units Part 1 1 General Outline: Outdoor Units 1.1 What Is in This Chapter? Introduction General outline Part 1 – System Outline This chapter contains the following information on the outdoor units: P Outlook and dimensions P Installation and service space P Components 1 3 This chapter contains the following general outlines: General outline See page 1.2–RZQ71: Outlook and Dimensions 1–4 1.
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ESIE05-03.book Page 4 Wednesday, April 6, 2005 4:09 PM General Outline: Outdoor Units 11 1.2 ESIE05-03 RZQ71: Outlook and Dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit (mm). HOLE FOR ANCHOR BOLT 4-M12 3 4 5 Installation and service space 1–4 See page 1–8.
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ESIE05-03.book Page 5 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Components General Outline: Outdoor Units 1 The table below contains the different components of the unit. No.
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ESIE05-03.book Page 6 Wednesday, April 6, 2005 4:09 PM General Outline: Outdoor Units 11 1.3 ESIE05-03 RZQ100~140: Outlook and Dimensions Outlook and dimensions The illustration below shows the outlook and the dimensions of the unit (mm). HOLE FOR ANCHOR BOLT 4-M12 3 4 5 Installation and service space 1–6 See page 1–8.
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ESIE05-03.book Page 7 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Components General Outline: Outdoor Units 1 The table below contains the different components of the unit. No.
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ESIE05-03.book Page 8 Wednesday, April 6, 2005 4:09 PM General Outline: Outdoor Units 11 1.4 ESIE05-03 RZQ71~140: Installation and Service Space Non stacked The illustrations and table below show the required installation and service space (mm). The values between brackets are for the 100~140 class.
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ESIE05-03.book Page 9 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Stacked General Outline: Outdoor Units The illustration below shows the required installation and service space (mm). The values in brackets are for the 100~140 class. P Do not stack more than one unit. P ± 100 mm is required as the dimension for laying the upper outdoor unit’s drain pipe. P Get the portion A sealed so that air from the outlet does not bypass.
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ESIE05-03.book Page 11 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Specifications Part 1 2 Specifications 2.1 What Is in This Chapter? Introduction Outdoor units This chapter contains the following information: P Technical specifications P Electrical specifications P Electrical data 1 3 This chapter contains the following specifications: Specifications See page 2.2–RZQ71, 100 and 125 (single phase) 1–12 2.
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ESIE05-03.book Page 12 Wednesday, April 6, 2005 4:09 PM Specifications 11 2.2 ESIE05-03 RZQ71, 100 and 125 (single phase) Technical specifications The table below contains the technical specifications.
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ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Specifications Specification RZQ71B8V3B Type RZQ100B8V3B 1 RZQ125B8V3B Daphne FVC50K Daphne FVC68D 0.8 l 1.0 l Refrigerant oil Charged volume Liquid quantity 1 Liquid type Flare connection Liquid diameter (OD) 9.52 mm Gas quantity 1 Gas type Flare connection Gas diameter (OD) 15.9 mm Drain quantity 3 Drain type Piping connections Hole Drain diameter (OD) 26.0 mm Piping length min. 5m Piping length max.
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ESIE05-03.book Page 14 Wednesday, April 6, 2005 4:09 PM Specifications 11 ESIE05-03 Electrical specifications The table below contains the electrical specifications. Specification RZQ71B8V3B RZQ100B8V3B Name RZQ125B8V3B V3B Phase 1~ Power supply Frequency 50 Hz Voltage 230 V Zmax.
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ESIE05-03.book Page 15 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Specifications Unit combination Power supply Compressor OFM IFM FCQ125DV3B RZQ125B8V3B 50-230 24.7 24.7 32 23.4 23.4 0.07+0.07 0.3+0.3 0.120 0.7 FCQ125B7V3B RZQ125B8V3B 50-230 25.0 25.0 32 23.4 23.4 0.07+0.07 0.3+0.3 0.090 1.0 FCQ60B7V1x2 RZQ125B8V3B 50-230 25.2 25.2 32 23.4 23.4 0.07+0.07 0.3+0.3 0.045x2 0.6x2 FCQ50B7V1x3 RZQ125B8V3B 50-230 25.8 25.8 32 23.4 23.4 0.07+0.07 0.3+0.3 0.
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ESIE05-03.book Page 16 Wednesday, April 6, 2005 4:09 PM Specifications 11 2.3 ESIE05-03 RZQ100, 125 and 140 (three phase) Technical specifications The table below contains the technical specifications.
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ESIE05-03.book Page 17 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Specifications Specification RZQ100B7W1B Type RZQ125B7W1B 1 RZQ140B7W1B Daphne FVC68D Refrigerant oil Charged volume Liquid quantity Liquid type 1 Flare connection Liquid diameter (OD) Gas quantity 9.52 mm 1 Gas type Flare connection Gas diameter (OD) Drain quantity Drain type Piping connections 1.0 l 15.9 mm 3 Hole Drain diameter (OD) 26.0 mm Piping length min. 5m Piping length max.
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ESIE05-03.book Page 18 Wednesday, April 6, 2005 4:09 PM Specifications 11 ESIE05-03 Electrical specifications The table below contains the electrical specifications. Specification RZQ100B7W1B RZQ125B7W1B Name RZQ140B7W1B W1B Phase 3N~ Power supply Frequency 50 Hz Voltage 400 V Zmax.
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ESIE05-03.book Page 19 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Specifications Unit combination Power supply Compressor OFM IFM FCQ140DV3B RZQ140B7W1B 50-400 14.2 14.2 20 12.9 12.9 0.07+0.07 0.3+0.3 0.120 0.7 FCQ71DV3Bx2 RZQ140B7W1B 50-400 14.1 14.1 20 12.9 12.9 0.07+0.07 0.3+0.3 0.030x2 0.3x2 FCQ71B7V3Bx2 RZQ140B7W1B 50-400 14.7 14.7 20 12.9 12.9 0.07+0.07 0.3+0.3 0.045x2 0.6x2 FCQ50B7V1x3 RZQ140B7W1B 50-400 14.7 14.7 20 12.9 12.9 0.07+0.07 0.3+0.3 0.
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ESIE05-03.book Page 21 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Functional Diagrams Part 1 3 Functional Diagrams 3.1 What Is in This Chapter? Introduction Functional diagrams Part 1 – System Outline This chapter contains the following information: P Functional diagrams P Pipe connection diameters. 1 3 This chapter contains the following functional diagrams: Functional diagram See page 3.2–Pair System 1–22 3.3–Twin System 1–24 3.4–Triple System 1–26 3.5–Double Twin System 1–27 3.
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ESIE05-03.book Page 22 Wednesday, April 6, 2005 4:09 PM Functional Diagrams 11 3.
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ESIE05-03.book Page 24 Wednesday, April 6, 2005 4:09 PM Functional Diagrams 11 3.3 ESIE05-03 Twin System RZQ71 6 14a 14a 7 8 3 8 7 10 14a 5a 14a 1a 9 17 1a 20 Indoor unit 16 4 15 16 11 7 14a Liquid piping 10 19 Gas piping 1a 4 5 8 1a 1a Indoor unit 1–24 12 Outdoor unit Heating Cooling 2b & 3 NOTE: The pipes between the branch and the indoor units should have the same size as the indoor connections.
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ESIE05-03.book Page 25 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Functional Diagrams 1 RZQ100~140 14a 14a 7 14a 8 7 14a 14a 17 6 8 1a 9 20 1a 5a 3 10 Indoor unit 15 8 11 12 16 4 7 Liquid piping 10 19 Gas piping 1a 4 8 Outdoor unit 1a 1a Indoor unit Part 1 – System Outline Heating Cooling 2b & 3 5 NOTE: The pipes between the branch and the indoor units should have the same size as the indoor connections.
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ESIE05-03.book Page 26 Wednesday, April 6, 2005 4:09 PM Functional Diagrams 11 3.4 ESIE05-03 Triple System RZQ100~140 7 14a 14a 14a 14a 14a 8 8 Indoor unit 3 2b & 3 1a 7 17 1a 6 9 7 20 5a 10 Liquid piping 4 8 1a 15 1a 1a 8 12 11 16 Gas piping Indoor unit 1a 10 7 19 4 5 Outdoor unit 8 Indoor unit 1–26 1a 1a Heating Cooling NOTE: The pipes between the branch and the indoor units should have the same size as the indoor connections.
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ESIE05-03.book Page 27 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.5 Functional Diagrams Double Twin System 1 RZQ100~140 7 Indoor unit 14a 8 1a 8 14a 8 14a 14a 14a 7 1a 17 9 Indoor unit 8 3 6 7 20 5a 10 1a 15 Liquid piping 1a 1a 8 19 7 8 Indoor unit Gas piping 11 12 16 4 1a 10 4 1a Outdoor unit Heating Cooling 1a 7 Indoor unit 8 1a 5 2b & 3 NOTE: The pipes between the branch and the indoor units should have the same size as the indoor connections.
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ESIE05-03.book Page 28 Wednesday, April 6, 2005 4:09 PM Functional Diagrams 11 3.6 ESIE05-03 Pipe Connection Diameters Outdoor units The table below contains the refrigerant pipe connection diameters. Model RZQ71B8V3B ∅ Gas pipe (flare) ∅ Liquid pipe (flare) 15.9 mm 9.
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ESIE05-03.book Page 29 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.7 Functional Diagrams Re-using Existing Field Piping Introduction 1 When installing a system using an RZQ outdoor unit, existing or pre-installed piping can be used according to below specified conditions. In all circumstances where these conditions can not be fully met, new piping has to be installed. How to re-use existing piping? Check the existing pipe size.
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ESIE05-03.book Page 30 Wednesday, April 6, 2005 4:09 PM Functional Diagrams Do not allow anything other than the designated refrigerant to get mixed into the freezing cycle (air, moisture,... ). If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly immediately. P Use R410A only when adding refrigerant. P Make sure all installation tools are designed for use on R410A refrigerant to withstand the pressure. P Vacuum pump.
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ESIE05-03.book Page 31 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Refrigerant pipe size Functional Diagrams P 1 Pipe size down and pipe size up is available for main piping (L1) only. Refrigerant pipe size Gas pipe Model Size-down RZQ71 φ 12.7 RZQ100~140 –– Standard size φ 15.9 Size-up –– φ 19.1 Liquid pipe Model RZQ71~140 P Size-down Standard size Size-up φ 6.4 φ 9.5 φ 12.7 Not using the standard pipe size may result in capacity decrease.
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ESIE05-03.book Page 32 Wednesday, April 6, 2005 4:09 PM Functional Diagrams 11 Allowable pipe length and heigth difference ESIE05-03 When re-using existing piping, refer to below table for allowable piping length and heigth difference (figures in brackets are equivalent lengths).
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ESIE05-03.book Page 33 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Caution for flare connections Functional Diagrams P Refer to below table for correct flare dimensions and tightening torques. Too high tightening force may cause refrigerant leak because of flare cracking: Flare nut tightening torque A dimensions for processing flares (mm) Ø 6.4 14.2~17.2 N·m (144~176 kgf·cm) 8.7~9.1 Ø 9.5 32.7~39.9 N·m (333~407 kgf·cm) 12.8~13.2 Ø 12.7 49.5~60.3 N·m (504~616 kgf·cm) 16.2~16.6 Ø 15.9 61.
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ESIE05-03 3.8 Components The table below contains the different components of the functional diagrams. No. Component Function / remark 1a Flare connection See pipe connection diameter. 2a Liquid stop valve The liquid stop valve is used as shut-off valve in case of a pump-down. 2b Liquid stop valve with service port 3 Gas stop valve with service port The gas stop valve is used as shut-off valve in case of a pump-down. 4 Compressor The compressor can restart after 3 min from last stop.
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ESIE05-03 1–36 Part 1 – System Outline
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ESIE05-03.book Page 37 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Switch Box Layout Part 1 4 Switch Box Layout 4.1 What Is in This Chapter? Introduction This chapter shows the switch box components. Outdoor units This chapter contains the following switch box layouts: 1 3 Switch box layout See page 4.2–RZQ71B8V3B 1–38 4.3–RZQ100~125B8V3B 1–39 4.
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ESIE05-03.book Page 38 Wednesday, April 6, 2005 4:09 PM Switch Box Layout 11 4.
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ESIE05-03.book Page 39 Wednesday, April 6, 2005 4:09 PM ESIE05-03 4.
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ESIE05-03.book Page 40 Wednesday, April 6, 2005 4:09 PM Switch Box Layout 11 4.
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ESIE05-03.book Page 41 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Wiring Diagrams Part 1 5 Wiring Diagrams 5.1 What Is in This Chapter? Introduction This chapter contains the wiring diagrams of the outdoor and indoor units. Outdoor units: This chapter contains the following wiring diagrams: 1 3 Wiring diagram See page 5.2–RZQ71B8V3B 1–42 5.3–RZQ100~125B8V3B 1–44 5.
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ESIE05-03.book Page 42 Wednesday, April 6, 2005 4:09 PM Wiring Diagrams 11 5.2 ESIE05-03 RZQ71B8V3B Wiring diagram The illustration below shows the wiring diagram of the unit. 71 CLASS indoor outdoor NOTE 1 3 4 ON OFF 5 EL.COMPO.ASSY FRONT BLK BLU BRN GRN ORG RED WHT YLW : : : : : : : : BLACK BLUE BROWN GREEN ORANGE RED WHITE YELLOW L : LIVE N : NEUTRAL 1–42 VIEW A CONNECTOR PROTECTIVE EARTH (SCREW) TERMINAL TERMINAL FIELD WIRING RELAY CONNECTOR NOTES : 1.
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ESIE05-03.book Page 43 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Wiring Diagrams A1P Printed circuit board R1T Thermistor (Air) A2P Printed circuit board (INV.) R2T Thermistor (Coil) BS1 Push button switch (Forced defrost-pump down) R3T Thermistor (Discharge pipe) R4T Thermistor (Suction pipe) C1, C2, C3 Capacitor R5T Thermistor (Power module) DS1 Dip switch RC Signal receiver circuit F1U Fuse (T 6.
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ESIE05-03.book Page 44 Wednesday, April 6, 2005 4:09 PM Wiring Diagrams 11 5.3 ESIE05-03 RZQ100~125B8V3B Wiring diagram The illustration below shows the wiring diagram of the unit. 100-125 CLASS indoor outdoor 3 NOTE 1 4 ON OFF 5 EL.COMPO.ASSY FRONT L : LIVE N : NEUTRAL FIELD WIRING PROTECTIVE EARTH (SCREW) TERMINAL TERMINAL CONNECTOR RELAY CONNECTOR VIEW A BLK BLU GRN RED WHT YLW : : : : : : REACTOR BOX BLACK BLUE GREEN RED WHITE YELLOW NOTES : 1.
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ESIE05-03.book Page 45 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Wiring Diagrams A1P Printed circuit board Q1DI Earth leakage breaker (30mA) A2P Printed circuit board (INV.) R1, R2 Resistor BS1 Push button switch (Forced defrost-pump down) R1T Thermistor (Air) R2T Thermistor (Coil) C1, C2, C3 Capacitor R3T Thermistor (Discharge pipe) DS1 Dip switch R4T Thermistor (Suction pipe) E1HC Crankcase heater R5T Thermistor (Power module) F1U Fuse (T 6.
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ESIE05-03.book Page 46 Wednesday, April 6, 2005 4:09 PM Wiring Diagrams 11 5.4 ESIE05-03 RZQ100~140B7W1B Wiring diagram The illustration below shows the wiring diagram of the unit. 100-125-140 CLASS indoor outdoor NOTE 1 3 ON OFF 4 5 EL.COMPO.ASSY FRONT L : LIVE N : NEUTRAL FIELD WIRING PROTECTIVE EARTH (SCREW) TERMINAL TERMINAL CONNECTOR RELAY CONNECTOR VIEW A BLK BLU BRN GRN ORG RED WHT YLW : : : : : : : : REACTOR BOX BLACK BLUE BROWN GREEN ORANGE RED WHITE YELLOW NOTES : 1.
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ESIE05-03.book Page 47 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Wiring Diagrams A1P Printed circuit board PS Power supply A2P Printed circuit board (INV.) Q1DI Earth leakage breaker (30mA) BS1 Push button switch (Forced defrost-pump down) R1 (A1P) Resistor R1, R2 (A2P) Resistor C1, C2, C3 Capacitor R1T Thermistor (Air) DS1 Dip switch R2T Thermistor (Coil) E1HC Crankcase heater R3T Thermistor (Discharge pipe) F1U (A1P) Fuse (T 6.
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ESIE05-03.book Page 49 Wednesday, April 6, 2005 4:09 PM ESIE05-03 PCB Layout Part 1 6 PCB Layout 6.1 What Is in This Chapter? Introduction Outdoor units This chapter contains the following information: P It describes which unit uses which PCB types P It shows the PCB connectors. 1 3 This chapter contains the following PCB layouts: PCB layout See page 6.2–RZQ71B8V3B 1–50 6.3–RZQ100~125B8V3B 1–54 6.
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ESIE05-03.book Page 50 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 6.2 ESIE05-03 RZQ71B8V3B Control PCB The illustration below shows the PCB connectors.
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ESIE05-03.book Page 51 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 52 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 Inverter PCB ESIE05-03 The illustration below shows the PCB connectors.
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ESIE05-03.book Page 53 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 54 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 6.3 ESIE05-03 RZQ100~125B8V3B Control PCB The illustration below shows the PCB connectors.
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ESIE05-03.book Page 55 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout Connector Connected to Description X3A X1M Terminal strip connector X4A X104A (on inverter PCB) X6A Part 1 – System Outline 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 56 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 Inverter PCB ESIE05-03 The illustration below shows the PCB connectors.
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ESIE05-03.book Page 57 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 58 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 6.4 ESIE05-03 RZQ100~140B7W1B Control PCB The illustration below shows the PCB connectors.
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ESIE05-03.book Page 59 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout Connector Connected to Description X1A V2R Diode module X3A X1M Terminal strip connector X4A X104A (on inverter PCB) X6A Part 1 – System Outline 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 60 Wednesday, April 6, 2005 4:09 PM PCB Layout 11 Inverter PCB ESIE05-03 The illustration below shows the PCB connectors.
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ESIE05-03.book Page 61 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Connectors PCB Layout 1 The table below describes the PCB connectors.
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ESIE05-03.book Page 1 Wednesday, April 6, 2005 4:09 PM ESIE05-03 4 Part 2 Functional Description What is in this part? This part contains information on the functions used to control the system. Understanding these functions is vital when diagnosing a malfunction that is related to the functional control.
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ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM ESIE05-03 General Functionality Part 2 1 1 General Functionality 2 1.1 What Is in This Chapter? Introduction This chapter will explain all functions not related to the compressor frequency control, outdoor unit fan control and expansion valve control. These functions have been programmed to ensure the unit's reliability and lifetime, enable the operation in case of malfunction, or increase the customer's comfort.
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ESIE05-03.book Page 4 Wednesday, April 6, 2005 4:09 PM General Functionality 1 1.2 ESIE05-03 Functions of Thermistors Locating the thermistors 2 햴 3 햵 햲 햳 햷 햶 4 Remark 5 Sensor R3T on indoor coil of FCQ35~60B7V1, FFQ35~60B7V1B, FBQ35~60B7V1 & FHQ35~60BUV1B is not used when the indoor units are connected to RZQ outdoor units.
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ESIE05-03.book Page 6 Wednesday, April 6, 2005 4:09 PM General Functionality 1 1.3 ESIE05-03 Forced Operating Mode (Emergency Operation) Purpose The table below describes the purpose of the forced operating mode. If... 2 3 Starting conditions Then... P R/C is defective P Indoor PCB is defective P Outdoor PCB is defective Forced operating mode can be used to go to cooling or heating.
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ESIE05-03.book Page 7 Wednesday, April 6, 2005 4:09 PM ESIE05-03 General Functionality Step Action 3 Switch ON the emergency switch on the outdoor PCB. 1 EMERGENCY ON COOL 2 1 OFF 4 2 3 4 HEAT Set the emergency switch on the outdoor PCB to the forced mode you prefer (Cooling or Heating). 3 EMERGENCY ON COOL 4 1 OFF 5 2 3 4 HEAT 5 Turn ON the power supply.
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ESIE05-03.book Page 8 Wednesday, April 6, 2005 4:09 PM General Functionality 1 2 1.4 ESIE05-03 Outdoor Unit Identification Function Purpose The purpose of the outdoor unit identification function is to enable the indoor unit to automatically determine which operating mode has to be set in function of the type of connected outdoor unit (c/o or h/p).
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ESIE05-03.book Page 9 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.5 General Functionality Simulated Operation Function 1 Outline When a malfunction on one of the below thermistors occurs, operation will continue while displaying the applicable alarm on the remote-controller. Fin thermistor malfunction is only displayed when pressing the "Inspection" button on the remote-controller.
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ESIE05-03.book Page 10 Wednesday, April 6, 2005 4:09 PM General Functionality 1 1.6 Restart Standby Outline 2 ESIE05-03 To prevent the compressor from frequently turning ON and OFF and allow pressure equalization, forced thermostat OFF will be conducted after compressor stopping (compressor guard timer). Graph Thermostat OFF Compressor Restart standby complete ON OFF 3 Electronic expansion valve OFF Oudoor unit fan Moves to “Stop” or “Starting control” after completion of “Restart standby”.
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ESIE05-03.book Page 11 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.7 General Functionality Automatic Restart Purpose 1 The purpose of the auto-restart function is to automatically resume the same operating mode as when the unit was operating when the power supply is restored after a power failure. Do not use the "Automatic Restart" function to daily start/stop the unit.
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ESIE05-03.book Page 12 Wednesday, April 6, 2005 4:09 PM General Functionality 1 2 1.8 Using Conditions for Remote Controller Thermostat Applicable The remote control thermostat is only available in wired remote controls. Method The remote control sensor is standard disabled for sky-air units. The use of the remote control sensor can be enabled by changing field setting 10(20)-2-02 to 10(20)-2-01.
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ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM ESIE05-03 General Functionality And assuming suction temperature has changed from 30°C to 18°C (F --> A): Body thermostat sensor is used for temperatures from 30°C to 25°C (F --> D). Remote controller thermostat sensor is used for temperatures from 25°C to 21°C (D --> B). Body thermostat sensor is used for temperatures from 21°C to 18°C (B --> A).
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ESIE05-03.book Page 14 Wednesday, April 6, 2005 4:09 PM General Functionality 1 2 3 4 1.9 ESIE05-03 Forced Thermostat OFF Outline The unit will perform the forced thermostat off function in following conditions: Condition 1 (cooling) Thermostat off due to freeze-up prevention. Prevent the indoor unit heat exchanger from freezing in cooling operation when one of the below conditions is applicable: Condition 2 (heating) P Indoor unit heat exchanger temperature < -5°C for 1 minute continuously.
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ESIE05-03.book Page 15 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.10 General Functionality Test Run Control 1 Purpose When operating the RZQ units for the first time after installation, the unit will - depending on the selected operation mode - perform a test run operation first. Situation 1 Cooling - first operation after installation in "Cooling mode" Cooling thermostat ON Situation 2 Cooling operation in forced thermostat ON.
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ESIE05-03.book Page 16 Wednesday, April 6, 2005 4:09 PM General Functionality 1 1.11 4-way Valve Control Purpose 2 3 Method 4 Time chart 5 ESIE05-03 The purpose of the 4-way valve control is to control how the superheated refrigerant passes through the 4-way valve. The 4-way valve control carries out the changeover switching of the 4-way valve. This changeover switching is only carried out during operation, because a certain pressure difference is required to move the internal cylinder. When...
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ESIE05-03.book Page 17 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.12 General Functionality Pump Down Residual Operation Outline 1 The unit will conduct a pump down residual operation after each compressor stop command. Purpose of this function is to collect the refrigerant in the liquid receiver and outdoor heat exchanger in order to prevent liquid refrigerant from remaining in the indoor heat exchanger.
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ESIE05-03.book Page 18 Wednesday, April 6, 2005 4:09 PM General Functionality 1 1.13 Pump Down Operation Outline 2 ESIE05-03 Whenever the units need to be moved or removed, perform a pump-down operation before disconnecting the field piping. By performing a pump-down operation, all of the refrigerant will be collected in the outdoor unit. Procedure Procedure 3 5 1 Start "Fan only operation" from the remote controller. Confirm that both the liquid and gas stop valves are open.
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ESIE05-03.book Page 19 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.14 General Functionality Defrost Operation 1 Outline When the unit is operating in heating mode, a defrost operation will be conducted in order to avoid ice formation on the outdoor unit heat exchanger. Defrost starting conditions Defrost will start when the following conditions have been realized: P 2 Integrated compressor running time is 25 minutes or more since the completion of the previous defrost operation.
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ESIE05-03.book Page 22 Wednesday, April 6, 2005 4:09 PM General Functionality 1 2 1.15 ESIE05-03 Freeze Prevention Function Purpose In order to avoid formation of ice on the indoor unit heat exchanger in cooling and dry mode, the system automatically starts up a freeze prevention cycle when a number of specific conditions are fulfilled.
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ESIE05-03.book Page 23 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.16 Outline General Functionality PMV Control 1 When the automatic mode is selected on the remote-controller, the unit will automatically activate the PMV control. The PMV index is a calculated average comfort level. 2 Refer to ISO 7730 for details.
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ESIE05-03.book Page 24 Wednesday, April 6, 2005 4:09 PM General Functionality 1 2 1.17 ESIE05-03 Preheating Operation Control Applicable units RZQ71 Outline After the compressor has been turned off, the preheating operation will be activated in order to avoid refrigerant from dissolving in the compressor oil.
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ESIE05-03.book Page 25 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.18 General Functionality Crankcase Heater Control 1 Applicable units RZQ100~140 Outline After the compressor has been turned off, the crankcase heater control will be activated in order to avoid refrigerant from dissolving in the compressor oil.
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ESIE05-03.book Page 27 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Indoor Unit Functional Concept Part 2 2 1 Indoor Unit Functional Concept 2 2.1 What Is in This Chapter? Introduction This chapter will explain more details about the various functions that are programmed for the Sky-Air R410A inverter indoor units. Overview This chapter contains the following topics: Topic See page 2.2–Thermostat Control 2–28 2.3–Drain Pump Control 2–29 2.4–Condensation Avoidance Control 2–31 2.
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ESIE05-03.book Page 28 Wednesday, April 6, 2005 4:09 PM Indoor Unit Functional Concept 1 2 2.2 ESIE05-03 Thermostat Control Purpose Based on the information received from the air return sensor, the thermostat control will decide the required operation status of the system. Thermostat control Cooling mode: Set point Thermostat ON –0.5 K +1 K Thermostat OFF 3 Heating mode: Set point Thermostat ON 4 +0.
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ESIE05-03.book Page 29 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.3 Indoor Unit Functional Concept Drain Pump Control 1 Purpose Control the water draining from the drain pan.
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ESIE05-03.book Page 30 Wednesday, April 6, 2005 4:09 PM Indoor Unit Functional Concept 1 Float switch activation during thermostat ON ESIE05-03 1 The thermostat is immediately turned OFF. 2 The drain pump continues to operate for minimum 10 minutes (even if abnormality is solved within the 10 minutes). 3 If the float switch closes again within 80 seconds, cooling operation can restart within the 10 minutes recovery period.
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ESIE05-03.book Page 31 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.4 Indoor Unit Functional Concept Condensation Avoidance Control 1 Purpose Avoid condensation on the swing flap when the most downward position of the swing flap (position 4) is selected on the remote controller. Applicable units This function is applicable for the FHQ units only. Method The condensation avoidance control will function in the following operating modes: Method P Cooling (automatic) P Dry keep.
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ESIE05-03.book Page 32 Wednesday, April 6, 2005 4:09 PM Indoor Unit Functional Concept 1 2 2.5 ESIE05-03 Draft Avoidance Control 1 Purpose Avoid draft for the customer by delaying transfer of the flap to the Po0 (horizontal) position for a certain amount of time when defrosting and in heating thermostat OFF. Heating thermostat OFF The time chart below illustrates the draft avoidance control 1 in heating thermostat OFF. When the flap starts to move, there can be a draft.
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ESIE05-03.book Page 33 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.6 Indoor Unit Functional Concept Draft Avoidance Control 2 1 Purpose The purpose of the draft avoidance control 2 is to avoid draft when the flap is moving. Starting conditions The draft avoidance control 2 is activated when: Time chart P Hot start is finished, or P Cold air prevention control is finished. 2 If the fan speed is set to "H", the fan turns at low speed for a certain amount of time.
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ESIE05-03.book Page 34 Wednesday, April 6, 2005 4:09 PM Indoor Unit Functional Concept 1 2.7 Fan and Flap Operations Cooling operation 2 3 4 ESIE05-03 Function The table below contains the fan and flap operations.
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ESIE05-03.book Page 36 Wednesday, April 6, 2005 4:09 PM Indoor Unit Functional Concept 1 At compressor startup 2 ESIE05-03 P In cooling: The indoor fan is operated at low speed until the low-pressure value reaches 6 bar. P In heating: Hot startup controlWhen performing a startup, or after the defrosting cycle has been completed, the indoor fan will be controlled as to prevent cold air draft and secure the starting performance (quick pressure build-up).
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ESIE05-03.book Page 37 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Outdoor Unit Functional Concept Part 2s 3 1 Outdoor Unit Functional Concept 2 3.1 What Is in This Chapter? Introduction This chapter will explain more details about the various functions that are programmed for the sky-air R410A inverter outdoor units. Overview This chapter contains the following topics: Topic See page 3.2–Function Outline 2–38 3.3–Frequency Regulating Functions 2–41 3.
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ESIE05-03.book Page 38 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.2 Function Outline Introduction 2 ESIE05-03 This chapter will show an overview of all applicable functions in cooling and heating mode. Content Topic See page 3.2.1–Function Outline in Cooling Mode 2–39 3.2.
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ESIE05-03.book Page 39 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.2.
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ESIE05-03.book Page 40 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.2.
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ESIE05-03.book Page 41 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3 Outdoor Unit Functional Concept Frequency Regulating Functions Introduction 1 One of the main functions of the µ-controller will be the control of the compressor frequency. The next chapter will explain how the compressor frequency is determined. Content Topic See page 3.3.1–Starting Frequency Control 2–42 3.3.2–General Frequency Control 2–45 3.3.3–Low Pressure Protection Control (RZQ71) 2–47 3.3.
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ESIE05-03.book Page 42 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 2 3.3.1 ESIE05-03 Starting Frequency Control Outline The inverter compressor will start up with a limited fixed frequency value for a specified period of time in order to prevent liquid back to the compressor, and to limit the starting current. General The normal starting control time is 2~3 minutes. The maximum starting frequency control time is limited to 10 minutes.
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ESIE05-03.book Page 43 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Outdoor Unit Functional Concept 1 Cooling Pressure equalizing start Pressure equalizing complete Pressure equalizing control before compressor start Starting control complete RZQ71: 73 Hz RZQ100~140: 107 Hz Compressor 15s Motorized valve 2 Starting control 3 RZQ71: 480 pls RZQ100~140: 65 pls 4 4 way valve Previously OFF OFF 5 ON Previously ON OFF Ta ≤ 40°C Outdoor unit fan OFF Ta > 40°C 1 min.
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ESIE05-03.book Page 45 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3.2 Outdoor Unit Functional Concept General Frequency Control 1 Outline After the "Starting frequency control" function has been terminated, the ideal compressor frequency will be determined by the "General frequency control". General The compressor operation frequency is controlled in order to keep a constant evaporation temperature in cooling and a constant condensing temperature in heating.
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ESIE05-03.book Page 46 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 Frequency steps ESIE05-03 The operating frequency for the sky-air RZQ inverter units will be a value chosen from a list with fixed frequency settings that is programmed in the unit's memory: Step No.
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ESIE05-03.book Page 47 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3.3 Outdoor Unit Functional Concept Low Pressure Protection Control (RZQ71) Outline 1 In order to prevent abnormal low pressures in the system, the below control function will be activated. Low pressure is measured by the low pressure sensor. 2 Flow chart (When cooling operation) (When heating operation) & • Within 5 minutes after defrosting • Lp < 0.1 MPa continuously Normal operation Normal operation Lp < 0.49 MPa • Lp > 0.
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ESIE05-03.book Page 48 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.3.3 Low Pressure Protection Control (RZQ100~140) Outline 2 ESIE05-03 In order to prevent abnormal low pressures in the system, the below control function will be activated. Low pressure is detected by the low pressure switch.
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ESIE05-03.book Page 49 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3.4 Outdoor Unit Functional Concept High Pressure Protection Control 1 Outline In order to prevent abnormal high pressures in the system and hence avoiding activation of the high pressure safety device the below control function will be activated. Details The high pressure value will be calculated from the low pressure, power input and compressor frequency. In case of RZQ100~140, low pressure is a calculated value.
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ESIE05-03.book Page 50 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.3.5 Discharge Pipe Temperature Control Outline 2 ESIE05-03 The compressor operating frequency will be controlled in order to avoid abnormal high compressor temperatures (see also expansion valve control).
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ESIE05-03.book Page 51 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3.6 Outdoor Unit Functional Concept Suction Pipe Superheat Protection Control (Heating Mode) Outline 1 In case the suction superheat value in heating mode is too high, the oil return to the compressor will be insufficient. In order to avoid that the compressor oil will be accumulated in the outdoor unit heat exchanger, the upper limit frequency will be decreased.
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ESIE05-03.book Page 52 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.3.7 Inverter Current Protection Control Outline 2 ESIE05-03 The compressor operating frequency will be restricted in order to prevent an over-current to the compressor.
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ESIE05-03.book Page 53 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3.8 Outdoor Unit Functional Concept Input Current Control Outline 1 Unlike the inverter current control, this function will monitor the overall input current and will restrict the compressor upper limit operating frequency as to prevent activation of the circuit breakers.
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ESIE05-03.book Page 54 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.3.9 ESIE05-03 Inverter Cooling Fin Temperature Control Outline This control will restrict the compressor upper limit frequency in order to protect the electronic components in the switch box from overheating (L4-error activation). By lowering the compressor frequency, the current drawn by the compressor will be reduced and as a result the temperature inside the switch box will drop.
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ESIE05-03.book Page 55 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Outdoor Unit Functional Concept 3.3.10 Pressure Difference Control 1 Outline To ensure the compression ratio (pressure difference between high and low pressure) at low outdoor temperature conditions in cooling mode and high outdoor temperature conditions in heating mode, the outdoor fan and target compressor frequency may be varied.
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ESIE05-03.book Page 57 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Outdoor Unit Functional Concept 3.3.11 Oil Recovery Operation 1 Outline When the compressor operates for a certain period of time at low frequency, the oil level in the compressor may become low due to incomplete oil return.To prevent damage to the compressor and in worst case avoid compressor lock, an oil recovery operation will be conducted.
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ESIE05-03.book Page 58 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.4 Expansion Valve Regulating Functions Introduction 2 ESIE05-03 This chapter will explain the functions that are used to control the expansion valve opening. Content 3 Topic See page 3.4.1–Expansion Valve Control at Startup 2–59 3.4.2–General Expansion Valve Control 2–60 3.4.
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ESIE05-03.book Page 59 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.4.1 Outdoor Unit Functional Concept Expansion Valve Control at Startup 1 Outline Before going to the general expansion valve control, the expansion valve opening will be limited in order to avoid the risk of liquid back and allow quick build up of pressure difference. Details During startup, the opening degree is determined by both the compressor frequency & the suction superheat.
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ESIE05-03.book Page 60 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.4.2 ESIE05-03 General Expansion Valve Control Outline After the start up control function has been terminated the general expansion valve control function will regulate the expansion valve opening in function of the target suction SH value. The discharge SH value will be used to set the target SH value.
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ESIE05-03.book Page 61 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.4.3 Outline Outdoor Unit Functional Concept Discharge Pipe Temperature Control 1 The expansion valve opening will be controlled in order to avoid abnormal high compressor discharge temperatures (see also compressor operating frequency control). 2 Details Normal operation Td < N°C Td > M°C Expansion valve opening +5 pls/2 min when cooling, 1 min when heating.
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ESIE05-03.book Page 62 Wednesday, April 6, 2005 4:09 PM Outdoor Unit Functional Concept 1 3.5 Outdoor Unit Fan Speed Control Introduction 2 ESIE05-03 This chapter will explain how the outdoor fan speed is determined in cooling and heating operation. Content Topic See page 3.5.
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ESIE05-03.book Page 63 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.5.1 Outdoor Unit Functional Concept Outdoor Unit Fan Speed Control Fan speed control 1 The outdoor fan speed will be controlled in function of the actual outdoor ambient temperature, the condensation pressure, pressure difference between low and high pressure and compression ratio. For details please refer to "Pressure Difference Control".
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ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting Part 3 1 Troubleshooting 1.1 What Is in This Chapter? Introduction When a problem occurs, you have to check all possible malfunctions. This chapter gives a general idea of where to look for malfunctions. Not all repair procedures are described. Some procedures are considered common practice. Overview Part 3 – Troubleshooting 1 33 This chapter contains the following topics: Topic See page 1.
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ESIE05-03.book Page 4 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.2 ESIE05-03 General Troubleshooting Flowchart Find out the situation according to the following procedure when there is a request for service from the customer. Troubleshooting by remote controller malfunction code. Turn the power supply switch ON or replace the fuse. Wait until power failure is over. Refer to "Remote controller display malfunction code and contents".
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ESIE05-03.book Page 5 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.3 Troubleshooting Overview of General Problems 1 Overview Equipment Condition Remedy 1 Equipment does not operate. See page 3-6 2 3 Fan operates, but compressor does not. Cooling/heating operation starts but stops immediately. See page 3-6 See page 3-10 4 After unit shuts down, it cannot be restarted for a while. See page 3-12 5 Equipment operates but does not provide cooling.
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ESIE05-03.book Page 6 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.
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ESIE05-03.book Page 7 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1 Troubleshooting Is power YES switch OFF or fuse for power switch blown? NO Is there power failure? YES Turn on power switch or replace fuse. If high-harmonics circuit breaker is not used on inverter compressor, have the circuit breaker replaced. Wait until power returns.
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ESIE05-03.book Page 8 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.
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ESIE05-03.book Page 9 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1 Troubleshooting · Indoor unit fan runs at set airflow rate. · (In cooling operation) When air thermistor ambient temperature is higher than set temperature · (In heating operation) When air thermistor ambient temperature is lower than set temperature Is the power switch OFF or the fuse for power switch blown? YES Turn on the power switch or replace fuse.
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ESIE05-03.book Page 10 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.3 ESIE05-03 Cooling/heating operation starts but stops immediately Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition 33 Possible Cause 4 5 3–10 P Excess charge of refrigerant P Air intrudes into refrigerant system P Faulty pressure switch P Faulty magnetic switch for outdoor unit fan motor P Faulty aux.
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ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1 Troubleshooting Turn the operation switch ON and OFF, then wait at ON side. Does the unit start operation after 3 minutes? YES Power supply voltage is within ±10 % of specified voltage. NO Is the discharge side of compressor hot after unit stop? YES Check on the cause why overcurrent relay (for compressor) or compressor protection thermostat acted. Normal.
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ESIE05-03.book Page 14 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.
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ESIE05-03 Troubleshooting 1 Troubleshooting Measure the temperature of suction air and supply air. Temperature difference = Suction air temp. Supply air temp. Temperature difference for cooling should be between 8 and 18 C. YES Does the heat load increase after installation of the unit? Normal.
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ESIE05-03.book Page 16 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.6 ESIE05-03 Equipment operates but does not provide heating Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition 33 Possible Cause 4 5 3–16 P Excess charge of refrigerant P Air intrudes into refrigerant system P Faulty pressure switch P Faulty magnetic switch for outdoor unit fan motor P Faulty aux.
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ESIE05-03.book Page 17 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1 Troubleshooting Is this first starting after installation? This is normal. Heating operation will be conducted after 2 or 3 minutes. See page 2-15 "Test Run Control" for details. YES NO Is the unit in defrost mode? YES Wait for a while. No abnormality NO Measure the temperature of suction air and supply air. Temperature difference = Suction air temp. – Supply air temp.
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ESIE05-03.book Page 18 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.3.7 ESIE05-03 Equipment discharges white mist Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition 33 4 Possible Cause P Humid installation site P Installation site is dirty and with dense oil mists.
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ESIE05-03.book Page 19 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.3.8 Troubleshooting Equipment produces loud noise or shakes Applicable Model 1 All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause P Faulty installation P Excess charge of refrigerant P Air intrudes into refrigerant system P Flushing noise due to refrigerant shortage. (Sound of shoo...
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ESIE05-03.book Page 20 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 ESIE05-03 Troubleshooting Does the noise generate with vibration of whole ceilings and walls? [Installation work side] YES Correction of installation Reinforcement for ceilings or walls NO Does the noise generate with vibration of unit mounting section? YES Continuous slight noise of "shoo...
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ESIE05-03.book Page 21 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.3.9 Troubleshooting Equipment discharges dust Applicable Model 1 All models of SkyAir series Error Detection Method Error Generating Condition Possible Cause 33 P Carpet P Animal's hair P Application (cloth shop,...) Troubleshooting Does the trouble generate at the time of operation start again after extended period of operation? YES 4 Dust collected inside the indoor unit are blown out.
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ESIE05-03.book Page 22 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 ESIE05-03 1.3.10 Remote controller LCD displays "88" Applicable Model All models of SkyAir series Error Detection Method Error Generating Condition 33 Possible Cause Troubleshooting Trouble generates just after power supply ON 4 YES The unit is checking to confirm that remote controller is normal. Indication appears for short time.
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ESIE05-03.book Page 23 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1.3.11 Swing flap does not operate 1 Applicable Models FUQ, FHQ, FAQ100 Method of Malfunction Detection Utilizes ON/OFF of the limit switch when the motor turns. Malfunction Decision Conditions When ON/OFF of the micro switch for positioning cannot be reversed even through the swing flap motor for a specified amount of time (about 30 seconds).
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ESIE05-03.book Page 24 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 ESIE05-03 Troubleshooting Are the connectors correctly connected to X29A and X14A on the PC board? NO Connect correctly. YES Is the limit switch’s transfer connector correctly connected? NO Connect correctly. YES 33 Turn the power supply off once and back on, and check whether the swing flap motor swings when the power supply is turned back on.
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ESIE05-03.book Page 25 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.4 Troubleshooting Procedure of Self-Diagnosis by Remote Controller The inspection/test button 1 The following modes can be selected by using the [Inspection/Test Operation] button on the remote control. Indoor unit settings can be made. P Filter sign time P Air flow direction P Others Depress Inspection/Test Operation button for more than 4 seconds. Local setting mode Service mode Service data can be obtained.
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ESIE05-03.book Page 26 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.5 ESIE05-03 Fault-diagnosis by Wired Remote Controller Explanation If operation stops due to malfunction, the remote controller’s operation LED blinks, and malfunction code is displayed. (Even if stop operation is carried out, malfunction contents are displayed when inspection mode is entered.) The malfunction code enables you to tell what kind of malfunction caused operation to stop.
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ESIE05-03.book Page 27 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.6 Troubleshooting Fault-diagnosis by Wireless Remote Controller 1 Introduction Contrary to the wired remote controller, the wireless remote controller does not display the error code. Instead, the operation LED on the light reception section flashes. Checking To find the error code, proceed as follows: Step Action 1 Press the INSPECTION/TEST button to select “inspection”. The equipment enters the inspection mode.
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ESIE05-03.book Page 28 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 ESIE05-03 Step Action 2 Press the UP or DOWN button and change the UNIT No. until the receiver of the remote controller starts to beep. UP DOWN 33 4 5 3 If you hear... Then... 3 short beeps Follow all steps below. 1 short beep Follow steps 3 and 4. Continue the operation in step 4 until you hear a continuous beep. This continuous beep indicates that the error code is confirmed.
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ESIE05-03.book Page 29 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting Step Action 4 Press the UP or DOWN button to change the error code upper digit until the receiver of the remote controller starts to beep. 1 DOWN UP DOWN 33 4 UP 5 If you hear... Then... 2 short beeps The upper digit matches. 1 short beep No digits match. 1 continuous beep Both upper and lower digits match. 5 Press the MODE selector button.The right “0” (lower digit) indication of the error code flashes.
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ESIE05-03.book Page 30 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 ESIE05-03 Step Action 6 Press the UP or DOWN button and change the error code lower digit until the receiver of the remote controller generates a continuous beep. DOWN UP DOWN 33 4 UP 7 Press the MODE button to return to normal status. If you do not press any button for at least 1 min, the remote controller returns automatically to normal status.
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ESIE05-03.book Page 33 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Troubleshooting 1.8 Troubleshooting by LED Indications 1.8.1 Troubleshooting by LED on the indoor unit’s Foreword 1 Troubleshooting can be carried out by service monitor LED (green).
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ESIE05-03.book Page 34 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.8.2 ESIE05-03 Troubleshooting by LED on outdoor unit PCB The following diagnosis can be conducted by turning on the power switch and checking the LED indication on the printed circuit board of the outdoor unit.
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ESIE05-03.book Page 35 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.9 Troubleshooting Troubleshooting by Remote Controller Display / LED Display c : LED blinks Explanation for Symbols / w : LED on / x : LED off 1 / — : No connection with troubleshooting : High probability of malfunction { : Possibility of malfunction : Low probability of malfunction — : No possibility of malfunction (do not replace) 1.9.
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ESIE05-03.book Page 36 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.9.
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ESIE05-03.book Page 37 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.9.
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ESIE05-03.book Page 38 Wednesday, April 6, 2005 4:09 PM Troubleshooting 1 1.10 ESIE05-03 Overview of the Outdoor Safety Devices High pressure switch RZQ71 Open Close 4.0 Mpa +0/-0.15 3.0 +/-0.15 Fuse 6.
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ESIE05-03.book Page 39 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.11 Troubleshooting Overview of the Indoor Safety Devices Thermal protector 1 Thermal fuse fan motor Abnormal Reset (automatic) FFQ35~60 >130°C +/-5°C <83°C +/-20°C N.A. FCQ35~71B >130°C +/-5°C <83°C +/-20°C N.A. FCQ100/125B >140°C +/-5°C <45°C +/-15°C N.A. FBQ35~125 N.A. N.A. >152°C FDQ125 N.A. N.A. >160°C FHQ35~125 >130°C +/-5°C <83°C +/-20°C N.A. FUQ71~125 >130°C +/-5°C <83°C +/-20°C N.A.
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ESIE05-03.
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ESIE05-03.book Page 41 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Indoor Units Part 3 2 Error Codes: Indoor Units 2.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Shutdown For some errors, the system only shuts down when the error occurs several times.
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ESIE05-03.book Page 42 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 2.2 ESIE05-03 Malfunctioning Indoor PCB (A1) Error code A1 LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) c c c w c x w — x — Normal 33 4 5 Malfunctioning Error generation The error is generated when the data from the EEPROM is not received correctly.
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ESIE05-03.book Page 43 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.3 Error Codes: Indoor Units Malfunction of Drain Water Level System (A3) Error code A3 LED indications The table below shows the LED indications. Operation 1 HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the water level reaches its upper limit and when the float switch turns OFF.
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ESIE05-03.book Page 44 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 ESIE05-03 Troubleshooting Begin Is the unit a cassette or built-in type? Is the optional drain raising mechanism connected? No No Is the short circuit connector connected to X15A on the indoor unit PCB? Yes 33 Connect the Short-circuit connector. No Yes Yes Check the continuity of the short-circuit connector. Yes Is a drain pump connected to the indoor unit PCB? 4 No Connect the drain pump.
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ESIE05-03.book Page 45 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.4 Error Codes: Indoor Units Malfunctioning Drain System (AF) 1 Error code AF LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the float switch changes from ON to OFF while the compressor is OFF.
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ESIE05-03.book Page 46 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 Caution ESIE05-03 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
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ESIE05-03.book Page 47 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.5 Error Codes: Indoor Units Indoor Unit Fan Motor Lock (A6) 1 Error code A6 LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the fan rotations are not detected while the output voltage to the fan is at its maximum.
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ESIE05-03.book Page 48 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 ESIE05-03 Troubleshooting Check the connections of X20A and X26A. Are X20A and X26A properly connected? No Connect X20A and X26A correctly. No Replace indoor unit PCB. Yes 33 Unplug X26A and switch the power supply on. 4 Check the voltage between pins 1 and 3 of X26A. 5 Is there about 12 VDC? Yes Check indoor unit fan motor and motor wiring.
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ESIE05-03.book Page 49 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.6 Error Codes: Indoor Units Swing Flap Motor Malfunction / Lock (A7) Error code A7 LED indications The table below shows the LED indications. Operation Error generation 1 HAP (green) HBP (green) Normal c c Malfunctioning c c 3 The error is detected by the limit switch when the motor turns.
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ESIE05-03.book Page 50 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 ESIE05-03 Troubleshooting Are the connectors correctly connected to X29A and X14A on the PC board? No Connect correctly. Yes Is the limit switch's transfer connector correctly connected? 33 No Connect correctly. Yes Turn the power supply off once and back on, and check whether the swing flap motor swings when the power supply is turned back on.
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ESIE05-03.book Page 51 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.7 Error Codes: Indoor Units Malfunctioning Capacity Setting (AJ) 1 Error code AJ LED indications The table below shows the LED indications. Operation Error generation HAP (green) HBP (green) Normal c c Malfunctioning c c Condition Description 1 P The unit is in operation. P The PCB’s memory IC does not contain the capacity code. P The capacity setting adaptor is not connected. P The unit is in operation.
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ESIE05-03.book Page 52 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 ESIE05-03 Troubleshooting Check if the capacity setting adapter is plugged into X23A of the indoor PCB. Is the capacity setting adapter plugged into X23A of the indoor unit PCB? 33 No Plug a capacitor setting adapter that matches the capacity of the unit into X23A. No The malfunction was caused by a missing capacity resistor. Yes Switch the power supply off and back on again.
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ESIE05-03.book Page 53 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.8 Error Codes: Indoor Units Thermistor Abnormality (C4, C5, C9) Error code LED indications The table below describes the two thermistor abnormalities. Error Description C4 Malfunctioning heat exchanger thermistor system. C5 Malfuncioning gaspipe thermistor system. C9 Malfunctioning suction air thermistor system. Causes Checking thermistors Part 3 – Troubleshooting 3 The table below shows the LED indications.
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ESIE05-03.book Page 54 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 ESIE05-03 Troubleshooting 33 4 5 Caution 3–54 C4: Indoor liquid pipe thermistor (R2T). C5: Gaspipe thermistor (R3T) C9: Air suction thermistor (R1T).
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ESIE05-03.book Page 55 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.9 Error Codes: Indoor Units Malfunctioning Remote Controller Air Thermistor (CJ) Error code CJ LED indications The table below shows the LED indications. Operation Error generation 1 HAP (green) HBP (green) Normal c c Malfunctioning c c The error is generated when the remote controller thermistor becomes disconnected or shorted while the unit is running.
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ESIE05-03.book Page 56 Wednesday, April 6, 2005 4:09 PM Error Codes: Indoor Units 1 2.10 ESIE05-03 Humidity Sensor System Malfunction (CC) Error code CC LED indications The table below shows the LED indications. Operation 33 Error generation HAP (green) HBP (green) Normal c c Malfunctioning c c The error is generated when the humidity sensor becomes disconnected or shorted while the unit is running. Even if the sensor is malfunctioning, the system can operate.
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ESIE05-03.book Page 57 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units Part 3 3 Error Codes: Outdoor Units 3.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Overview This chapter contains the following topics: Part 3 – Troubleshooting Topic See page 3.
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ESIE05-03.book Page 58 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.2 Failure of Outdoor Unit PC Board (E1) Remote Controller Display 33 ESIE05-03 E1 Method of Malfunction Detection Microcomputer checks whether E2PROM is normal.
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ESIE05-03.book Page 59 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.3 Error Codes: Outdoor Units Abnormal High Pressure (Detected by the HPS) (E3) Remote Controller Display 1 E3 Method of Malfunction Detection The protection device circuit checks continuity in the high pressure switch.
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ESIE05-03.book Page 60 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 ESIE05-03 Troubleshooting Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Are control and protection HPS connected to outdoor unit PC board? (Note) 33 NO Connect correctly. YES Turn off the power supply. Wait for 10 minutes after compressor stops operating, then check the following.
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ESIE05-03.book Page 61 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.4 Error Codes: Outdoor Units Actuation of Low Pressure Sensor: RZQ71B8V3B (E4) Remote Controller Display 1 E4 Method of Malfunction Detection Actual value of the low pressure is continuously measured using the low pressure sensor. Malfunction Decision Conditions Error is generated when the low pressure is dropped under specific pressure. Supposed Causes P Abnormal drop of low pressure (Lower than 0.
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ESIE05-03.book Page 62 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units ESIE05-03 1 Outdoor unit PC board A1P +5V GND Microcomputer A/D input 4 Red 3 Black 2 White 1 33 ∗2 Measure voltage (DC) within this space. Low pressure sensor X64A (blue) (V2972) *2 Refer to Low pressure sensor, check on page 3–115. Caution 4 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
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ESIE05-03.book Page 63 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.5 Error Codes: Outdoor Units Actuation of Low Pressure Switch: RZQ100~140 (E4) Error code 1 E4 Method of Malfunction Detection The protection device circuit checks continuity in the low pressure switch. Error generation The error is generated when the low-pressure switch is activated during compressor operation.
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ESIE05-03.book Page 64 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 Troubleshooting ESIE05-03 To troubleshoot, proceed as follows: Check the installation conditions. Is the stop valve open? No Open the stop valve. No Connect correctly. No Replace LPS without continuity. No Fault in refrigerant piping. Yes Is the LPS correctly connected to the outdoor unit PCB? 33 Yes · Turn the power OFF and back ON after 2 or 3 minutes.
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ESIE05-03.book Page 65 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.6 Error Codes: Outdoor Units Compressor Motor Lock (E5) Remote Controller Display 1 E5 Method of Malfunction Detection Inverter PC board takes the position signal from UVWN line connected between the inverter and compressor, and detects the position signal pattern.
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ESIE05-03.book Page 66 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 ESIE05-03 Troubleshooting Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Is the UVWN wiring normal? 33 NO Connect correctly. YES Is high pressure higher than 2.6 MPa at starting? 4 YES Remedy the cause. NO Check and see whether compressor is short-circuited or ground. 5 YES Replace the compressor.
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ESIE05-03.book Page 67 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.7 Error Codes: Outdoor Units Malfunction of Outdoor Unit Fan Motor (E7) Remote Controller Display 1 E7 Method of Malfunction Detection Abnormality of fan motor system is detected according to the fan speed detected by hall IC when the fan motor runs.
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ESIE05-03.book Page 68 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 Caution ESIE05-03 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
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ESIE05-03.book Page 69 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.8 Error Codes: Outdoor Units Malfunction of Electronic Expansion Valve (E9) Remote Controller Display 1 E9 Method of Malfunction Detection Method is determined according to the suction pipe superheat degree and electronic expansion valve opening degree calculated by values of low pressure sensor and suction pipe temperature thermistor.
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ESIE05-03.book Page 70 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 ESIE05-03 Troubleshooting Turn the power supply off once and back on. Normal reset? YES Problem could be caused by external factor (noise, etc.) other than malfunction. NO Is the electronic expansion valve coil connected to outdoor unit PC board? 33 NO Connect correctly. YES With remote controller ON, doesn’t the unit operate and is “E9” displayed? 4 Replace the motorized valve coil.
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ESIE05-03.book Page 71 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.9 Error Codes: Outdoor Units Malfunctioning in Discharge Pipe Temperature (F3) Remote Controller Display 1 F3 Method of Malfunction Detection Abnormality is detected according to the temperature detected by the discharge pipe temperature sensor.
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ESIE05-03.book Page 72 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 ESIE05-03 Troubleshooting Is the discharge pipe temperature high? (See *1.) YES Abnormality in refrigerant system such as gas shortage, faulty compressor, etc. Conduct inspection NO Is the discharge pipe thermistor correctly connected to PCB (A1P)? NO Connect correctly, and operate the unit again.
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ESIE05-03.book Page 73 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.10 Error Codes: Outdoor Units Malfunctioning HPS System (H3) Remote Controller Display 1 H3 Method of Malfunction Detection The protection device circuit checks continuity in the high pressure switch. Malfunction Decision Conditions When there is no continuity in the high pressure switch during compressor stops operating.
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ESIE05-03.book Page 74 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.11 Abnormal Low Pressure Switch (H4) Applicable model Remote Controller Display 33 4 ESIE05-03 RZQ100~140 H4 Method of Malfunction Detection P Check the continuity of LPS P LPS is not operated when the low pressure is dropped under specific pressure (0.12MPa). Malfunction Decision Conditions When there is no continuity in the LPS during compressor start operating.
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ESIE05-03.book Page 75 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Is LPS connector connected to outdoor PC board? (∗1) NO Connect correctly. YES Turn off the power supply. After 10 minutes, check the following. Check 5.8 Is low pressure abnormally low? NO 33 Correct the refrigerant pipe. YES Is there continuity in control and protection LPS? NO 4 Replace the LPS. YES Replace the outdoor unit PC board.
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ESIE05-03.book Page 76 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.12 Malfunction of Thermistor System (H9, J3, J5, J6) Remote Controller Display 33 4 ESIE05-03 H9, J3, J5, J6 Method of Malfunction Detection Abnormality is detected according to the temperature detected by each individual thermistor.
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ESIE05-03.book Page 77 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.13 Error Codes: Outdoor Units Malfunction of Suction Pipe Pressure Sensor (JC) Remote Controller Display 1 JC Method of Malfunction Detection Malfunction is detected from pressure detected by low pressure sensor. Malfunction Decision Conditions When the suction pipe pressure sensor is short circuit or open circuit.
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ESIE05-03.book Page 78 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 Caution ESIE05-03 Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
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ESIE05-03.book Page 79 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.14 Error Codes: Outdoor Units Radiation Fin Temperature Increased (L4) Remote Controller Display 1 L4 Method of Malfunction Detection Fin temperature is detected by the thermistor of the radiation fin. Malfunction Decision Conditions When the temperature of the inverter radiation fin increases abnormally due to faulty heat dissipation.
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ESIE05-03.book Page 80 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.15 DC Output Overcurrent (Instantaneous) (L5) Remote Controller Display 33 ESIE05-03 L5 Method of Malfunction Detection Malfunction is detected by converting the current flowing to power transistor into voltage with CT1 (DC current sensor). Malfunction Decision Conditions When overcurrent has run to power transistor.
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ESIE05-03.book Page 81 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Is the compressor coil disconnected or is the insulation defective? YES Replace the compressor. 33 NO Turn the main power supply off, and then disconnect the connection between the compressor and inverter. Check 5.9.
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ESIE05-03.book Page 82 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.16 Electronic Thermal (Time Lag) (L8) Remote Controller Display Method of Malfunction Detection 33 L8 Malfunction is detected by converting the current flowing to power transistor into voltage with CT1 (DC current sensor). Inverter PC board detects the disorder of position signal. Malfunction Decision Conditions When compressor overload (except for when startup) is detected.
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ESIE05-03.book Page 83 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Is the secondary current of the inverter higher than ∗A (see below) for each phase? YES Compressor overload Inspection of the compressor and refrigerant system is required. NO Turn the main power supply off, and then disconnect the connection between the compressor and inverter. 33 Check 5.9.
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ESIE05-03.book Page 84 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.17 Stall Prevention (Time Lag) (L9) Remote Controller Display 33 ESIE05-03 L9 Method of Malfunction Detection Malfunction is detected by converting the current flowing to power transistor into voltage with CT1 (DC current sensor). Inverter PC board detects the disorder of position signal.
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ESIE05-03.book Page 85 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Check the installation conditions. Is the stop valve open? NO Open the stop valve. YES Is the difference between high and low pressure before startup not more than 0.2MPa? NO Insufficient pressure equalization Check refrigerant system. 33 YES Turn the main power supply off, and then disconnect the connection between the compressor and inverter. Check 5.9.
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ESIE05-03.book Page 86 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.18 Malfunction of Transmission system (Between Control PCB and Inverter PCB) (LC) Remote Controller Display 33 ESIE05-03 LC Method of Malfunction Detection Checks and sees whether transmission between control and inverter PC board is carried out normally.
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ESIE05-03.book Page 87 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Is the fan motor connector connected? NO Connect the connector, and turn on again. YES Are connectors connecting the control and inverter PC board connected securely? NO Connect the transmission wiring, and turn on again. YES Is the transmission wiring between the control and inverter PC board disconnected? 33 YES Fix the disconnection, and turn on again.
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ESIE05-03.book Page 88 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.19 Open Phase or Power Supply Voltage Imbalance (P1) Remote Controller Display 33 ESIE05-03 P1 Method of Malfunction Detection Malfunction is detected according to the voltage waveform of main circuit capacitor built in inverter. Malfunction Decision Conditions When the aforementioned voltage waveform becomes identical with the waveform of the power supply open phase.
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ESIE05-03.book Page 89 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: Outdoor Units 1 Troubleshooting Check LED on the outdoor unit PC board (Open phase?) NO Other factors than open phase YES Open phase of power supply voltage? YES Field factors NO Is the voltage imbalance between phases large? (Note) Target : ±10V between phases, R-S, S-T, T-R NO (Note) Check for faulty contact, disconnection, K11R, K12R deposited or fused between power supply and inverter.
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ESIE05-03.book Page 90 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.20 Malfunction of Radiator Fin Temperature Thermistor (P4) Remote Controller Display 33 4 ESIE05-03 P4 Method of Malfunction Detection Detection by open or short circuit of the radiator fin temperature thermistor during the compressor stops operating.
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ESIE05-03.book Page 91 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.21 Error Codes: Outdoor Units Failure of Capacity Setting (PJ) Remote Controller Display 1 PJ Method of Malfunction Detection Check whether set value written in E2PROM (at factory) or set value of capacity setting adaptor (for replacement) is the same as outdoor unit capacity.
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ESIE05-03.book Page 92 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 3.22 Gas Shortage (Malfunction) (U0) Remote Controller Display 33 ESIE05-03 U0 Method of Malfunction Detection (In test operation) Detection by closed stop valve. Malfunction Decision Conditions (In test operation) Variations of the indoor unit heat exchange temperature judge whether stop valve is open or closed.
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ESIE05-03.book Page 93 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.23 Error Codes: Outdoor Units Abnormal Power Supply Voltage (U2) Remote Controller Display 1 U2 Method of Malfunction Detection Malfunction is detected according to the voltage of main circuit capacitor built in the inverter and power supply voltage.
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ESIE05-03.book Page 94 Wednesday, April 6, 2005 4:09 PM Error Codes: Outdoor Units 1 ESIE05-03 Troubleshooting Check LED on outdoor unit PC board. (Is the voltage insufficient?) NO Other factors YES Is the power supply voltage between 220~240 VAC ±10%? NO Field factors YES 33 Is the wiring correct? NO When the compressor is running, measure the voltage between + and - of electrolytic capacitor (C+, C-). 4 Correct the wiring.
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ESIE05-03.book Page 95 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: System Malfunctions Part 3 4 Error Codes: System Malfunctions 4.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Overview This chapter contains the following topics: Part 3 – Troubleshooting Topic See page 4.
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ESIE05-03.book Page 96 Wednesday, April 6, 2005 4:09 PM Error Codes: System Malfunctions 1 4.2 ESIE05-03 Malfunction of Transmission between Indoor and Outdoor Unit (U4 or UF) Error code U4 or UF Error generation The error is generated when the microprocessor detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time.
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ESIE05-03.book Page 97 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: System Malfunctions 1 Troubleshooting 2 From the preceding page Is the HAP blinking? Check the normal HAP of the microcomputer for outdoor unit. NO (ON or OFF) Turn OFF the power supply once and then ON again. YES Is the HAP blinking? YES Reset to normal. External factors (e.g. noises) are supposed. NO Is the HAP ON? YES Faulty outdoor unit PC board.
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ESIE05-03.book Page 98 Wednesday, April 6, 2005 4:09 PM Error Codes: System Malfunctions 1 4.3 ESIE05-03 Malfunction of Transmission between Indoor Unit and Remote Controller (U5) Error code U5 Error generation The error is generated when the microprocessor detects that the transmission between the indoor unit and the remote controller is not normal over a certain amount of time.
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ESIE05-03.book Page 99 Wednesday, April 6, 2005 4:09 PM ESIE05-03 4.4 Error Codes: System Malfunctions Malfunction of Transmission between MAIN Remote Controller and SUB Remote Controller (U8) Error code 1 U8 Error generation The error is generated when, in case of controlling with two remote controllers, the microprocessor detects that the transmission between the indoor unit and the remote controllers (MAIN and SUB) is not normal over a certain amount of time.
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ESIE05-03.book Page 100 Wednesday, April 6, 2005 4:09 PM Error Codes: System Malfunctions 1 4.5 ESIE05-03 Malfunctioning Field Setting Switch (UA) Error code UA Error generation The error is generated when incorrect field settings have been set for pair/twin/triple/double twin. Causes The possible causes are: 33 P Malfunctioning indoor or outdoor unit PCB P Malfunctioning power supply PCB P Indoor-outdoor, indoor-indoor unit transmission wiring P Malfunctioning remote controller wiring.
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ESIE05-03.book Page 101 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Error Codes: System Malfunctions 1 Troubleshooting Is the remote controller connected to more than one indoor unit? YES Connect the remote controller correctly. NO Is the outdoor unit used for Twin system? NO Check setting "No. of Connected Twin System Indoor Units" of indoor unit. YES Is the setting of Pair/Twin/Triple set correctly? 33 NO Set correctly.
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ESIE05-03.book Page 102 Wednesday, April 6, 2005 4:09 PM Error Codes: System Malfunctions 1 4.6 Centralized Address Setting Error (UC) Remote Controller Display 33 4 ESIE05-03 UC Applicable Models All indoor unit models Method of Malfunction Detection Indoor unit microcomputer detects and judges the centralized address signal according to the transmission between indoor units.
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ESIE05-03.book Page 103 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Additional Checks for Troubleshooting Part 3 5 Additional Checks for Troubleshooting 5.1 What Is in This Chapter? Introduction This chapter explains how you must check the units to carry out troubleshooting correctly. Overview This chapter contains the following topics: Part 3 – Troubleshooting 1 33 Topic See page 5.2–Outdoor unit: Checking the Installation Condition 3–104 5.
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ESIE05-03.book Page 104 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.2 Checking ESIE05-03 Outdoor unit: Checking the Installation Condition To check the installation condition, proceed as follows: Check the spaces for all air passage around the suction and discharge areas. Is the minimum space rescpected? 33 No Change the installation location.
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ESIE05-03.book Page 105 Wednesday, April 6, 2005 4:09 PM ESIE05-03 5.3 Additional Checks for Troubleshooting Outdoor Unit: Checking the Expansion Valve Checking 1 To check the electronic expansion valve, proceed as follows: Step Action 1 Check if the expansion valve connector is correctly inserted in the X12A of A1P. 2 Compare the expansion valve unit with the number of the connector to make sure it is correctly connected. 3 Switch the power OFF.
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ESIE05-03.book Page 106 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.4 ESIE05-03 Checking the Thermistors Thermistors If the cause of the problem is related to the thermistors, then the thermistors should be checked prior to changing the PCB. For more information about these thermistors, see: Overview of thermistors 33 ’Wiring Diagrams’’ (outdoor units) P “Functions of Thermistors” on page 2-4.
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ESIE05-03.book Page 107 Wednesday, April 6, 2005 4:09 PM ESIE05-03 5.5 Additional Checks for Troubleshooting Resistance Conversion Table (Ambient, Coil, Fin) Temperature – resistance The table below is the thermistor (R1T and R2T) temperature – resistance conversion table. Temp. (°C) Applicable sensors 1 A (kΩ) B (kΩ) Temp. (°C) A (kΩ) B (kΩ) Temp. (°C) A (kΩ) B (kΩ) -20 197.81 192.08 20 25.01 24.45 60 4.96 4.87 -19 -18 -17 -16 -15 -14 -13 -12 -11 186.53 175.97 166.07 156.80 148.
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ESIE05-03.book Page 108 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.6 R3T: Resistance Conversion Table (Discharge Pipe Sensor) Temperature – resistance The table below is the thermistor (R3T) temperature – resistance conversion table. Temp. (°C) Resist. (kΩ) — 33 4 5 3–108 ESIE05-03 Temp. (°C) Resist. (kΩ) Temp. (°C) Resist. (kΩ) — 60.0 52.8 130.0 5.4 — -6.0 -4.0 -2.0 — 1120.0 1002.5 898.6 62.0 64.0 66.0 68.0 48.9 45.3 42.0 39.0 132.0 134.0 136.0 138.
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ESIE05-03.book Page 109 Wednesday, April 6, 2005 4:09 PM ESIE05-03 5.7 Additional Checks for Troubleshooting Evaluation of Abnormal High Pressure 1 Abnormally high pressure level is mostly caused by the condenser side. The following contents are provided by service engineer based on their field checks. Further, the number is listed in the order of degree of influence.
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ESIE05-03.book Page 110 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.8 ESIE05-03 Evaluation of Abnormal Low Pressure Abnormally low pressure level is mostly caused by the evaporator side. The following contents are provided based on field checking of service engineer. Further, the number is listed in the order of degree of influence.
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ESIE05-03.book Page 111 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Additional Checks for Troubleshooting 5.9 Checks 5.9.1 Clogged Points 1 Temperature differences must occur before or after the clogged points! 1 3 3 4 33 5 2 RAC Indoor Unit Part 3 – Troubleshooting COMP Check points Check factor Causes 1 Temperature difference P Dust P Choked moisture P Reduced effective pipe diameter due to adherent contamination, etc.
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ESIE05-03.book Page 112 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.9.2 ESIE05-03 Outdoor Unit: Fan Motor Signal Line For RZQ71~140 models (1) Turn the power supply off. (2) With the fan motor connector disconnected, measure the resistance between each pin, then make sure that the resistance is more than the value mentioned in the following table.
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ESIE05-03.book Page 113 Wednesday, April 6, 2005 4:09 PM ESIE05-03 5.9.3 Additional Checks for Troubleshooting Outdoor unit: Fan Speed Pulse 1 For RZQ71~140 models (1) Disconnect the connector X206A with the power supply OFF and Operation OFF. (2) Is the voltage between pins 4 and 3 of X206A about 15 VDC after turning the power supply on? (3) Is the voltage between pins 4 and 1 of X206A about 5 VDC? (4) Connect the connector X206A with the power supply OFF and Operation OFF.
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ESIE05-03.book Page 114 Wednesday, April 6, 2005 4:09 PM Additional Checks for Troubleshooting 1 5.9.4 ESIE05-03 Outdoor unit: Check for Power Transistor Judgment according to the continuity check by using an analog tester: (1) Do not touch the charged area (high voltage) for 10 minutes after turning the power supply off. (2) If you must touch such an area, make sure that the power supply voltage of power transistor is 50 V or less.
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ESIE05-03.book Page 115 Wednesday, April 6, 2005 4:09 PM ESIE05-03 5.9.5 Additional Checks for Troubleshooting Outdoor unit: Check Low Pressure Sensor 1 Measure the voltage (DC) between pins 2 and 3 of the connector. n For RZQ71 models Outdoor unit PC board +5V (Blue) Microcomputer A/D input Red Black Low pressure sensor White Measure voltage (DC) here. (S2680) 33 Detected Pressure PH, PL (Kg/cm²) MPa 51.0 5.0 45.9 4.5 40.8 4.0 35.7 3.5 30.6 3.0 25.5 2.5 20.4 2.
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ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Pre-Test Run Checks Part 4 1 Pre-Test Run Checks 1.1 What Is in This Chapter? Introduction Overview This chapter contains the following information: P Checks before test run P Test run checks P Setting the address for the receiver of the wireless remote controller P Setting the address for the wireless remote controller. 3 4 This chapter contains the following topics: Topic See page 1.2–Test Run Checks 4–4 1.
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ESIE05-03.book Page 4 Wednesday, April 6, 2005 4:09 PM Pre-Test Run Checks 1 1.2 ESIE05-03 Test Run Checks Checks before test run Before carrying out a test run, proceed as follows: Step Action 1 Make sure the voltage at the primary side of the safety breaker is: 2 3 Test run checks 4 5 4–4 P 230 V ± 10% for 1-phase units P 400 V ± 10% for 3-phase units Fully open the liquid and the gas stop valve.
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ESIE05-03.book Page 5 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.3 Pre-Test Run Checks Setting the Wireless Remote Controller Introduction Setting the address for the receiver 1 To set the wireless remote controller, you have to set the address for: P The receiver of the wireless remote controller P The wireless remote controller. The address for the receiver of the wireless remote controller is factory set to 1. To change this setting, proceed as follows: Step Action 1 Turn OFF the power.
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ESIE05-03.book Page 6 Wednesday, April 6, 2005 4:09 PM Pre-Test Run Checks 1 Setting the address for the wireless remote controller ESIE05-03 The address for the wireless remote controller is factory set to 1. To change this setting, proceed as follows: Step Action 1 Hold down the FILTER RESET button and the TEST button for at least 4 s, to go to field set mode. The display indicates the field set mode.
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ESIE05-03.book Page 7 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Pre-Test Run Checks Step Action 3 Press the UP and DOWN buttons to set the address. Set the same address as the receiver (1, 2 or 3). The receiver does not work with addresses 4, 5 and 6. 1 UP DOWN 3 4 4 5 Press the RESERVE button to confirm the setting.
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ESIE05-03.book Page 8 Wednesday, April 6, 2005 4:09 PM Pre-Test Run Checks 1 ESIE05-03 Step Action 5 Press the TEST button to quit the field set mode and return to the normal display. ON / OFF TEMP TIME ˚C UP DOWN FAN RESERVE CANCEL 3 TIMER MODE SWING /TEST TEST 4 5 Multiple settings A/b When an outside control (central remote controller...) controls an indoor unit, sometimes the indoor unit does not respond to ON/OFF and temperature settings commands from this controller.
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ESIE05-03.book Page 9 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Field settings Part 4 2 Field settings 2.1 What Is in This Chapter? Introduction Overview This chapter contains the following information: P How to change the field settings P The field settings P The factory settings. 3 This chapter contains the following topics: Topic See page 2.2–How to Change the Field Settings with the Wired Remote Controller 4–10 2.
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ESIE05-03.book Page 10 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.2 ESIE05-03 How to Change the Field Settings with the Wired Remote Controller Installation conditions The field settings have to be changed with the remote controller according to the installation conditions. Wired remote controller (BRC1D527) The illustration below shows the wired remote controller.
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ESIE05-03.book Page 11 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Setting Field settings 1 To set the field settings, you have to change: P “Mode No.” P “First code No.” P “Second code No.”. To change the field settings, proceed as follows: Step Action 1 Hold down the INSPECTION/TEST button for at least 4 s during normal mode to enter the “Field setting mode”. 2 Press the TEMPERATURE CONTROL button until the desired “Mode No.” appears.
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ESIE05-03.book Page 12 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.3 ESIE05-03 How to Change the Field Settings with the Wireless Remote Controller Optional accessories If optional accessories are mounted on the indoor unit, the indoor unit setting may have to be changed. Refer to OH98-2 or the installation manual (optional handbook) for each optional accessory. Wireless remote controller The illustration below shows the wireless remote controller. 3 UP button Mode No.
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ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.4 Field settings Overview of the Field Settings on the Indoor Units Field settings Mode No. 10 or 20 1 The table below contains the possible field settings of all indoor units. First code No. Second code No. Description of the setting 01 02 03 04 0 Filter counter Light contamination heavy contamination — — 1 Filter type Long Super long External Oil mist 2 Remote thermistor of the remote controller TH1 = rem.
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ESIE05-03.book Page 14 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.5 ESIE05-03 Overview of the Factory Settings on the Indoor Units Factory settings Mode No. 10 or 20 3 4 11 or 21 12 or 22 13 or 23 5 14 or 24 4–14 The table below contains the factory settings of all indoor units First code No. Second code No.
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ESIE05-03.book Page 15 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.6 Field settings MAIN/SUB Setting when Using Two Remote Controllers 1 Situation The MAIN/SUB setting is necessary when one indoor unit is controlled by two remote controllers. When you use two remote controllers (control panel and separate remote controller), set one to MAIN and the other to SUB. You can do this by setting the switch on the remote controller’s PCB.
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ESIE05-03.book Page 16 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.7 ESIE05-03 Setting the Centralized Group No. When? If you want to carry out centralized control with a central remote controller and a unified ON/OFF controller, you have to set the group No. for each group with the remote controller. Wired remote controller The illustration below shows the wired remote controller. Mode N° 3 UNIT No.
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ESIE05-03.book Page 17 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Individually address setting Field settings If the address must be set individually for each unit, set the “Mode No.” to “30”. For example, for power consumption counting.
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ESIE05-03.book Page 18 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.8 ESIE05-03 The Field Setting Levels Introduction The inspection level The three field setting levels are: P Inspection level P Monitoring level P Maintenance mode settings. The inspection level is the highest level of the three field setting levels. You can change the views in the inspection level by pressing the INSPECTION/TEST button. The flow chart below explains the different windows of the inspection level.
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ESIE05-03.book Page 19 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Possible system settings Field settings The table below contains the possible system settings, which are displayed on the remote controller if the TEST button is pushed twice shortly.
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ESIE05-03.book Page 20 Wednesday, April 6, 2005 4:09 PM Field settings Maintenance Mode Settings Mode No. The table below describes the maintenance mode settings. Function Content and operation method Example of the remote controller display Display malfunction history 40 History error codes The history No. can be changed with the programming time button. Past error code Unit No.
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ESIE05-03.book Page 21 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.9 Field settings Overview of the Field Settings on the Outdoor Units Remote controller settings Mode N° First code The table below contains the remote controller settings.
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ESIE05-03.book Page 22 Wednesday, April 6, 2005 4:09 PM Field settings 1 ESIE05-03 This drawing shows the position of jumper JX5 on PCB A1P. 3 4 5 DIP switches The table below contains the DIP switch field settings. DIP switch Label on PCB Function Details DS1-1 ON/OFF Switch emergency operation outdoor unit ON/OFF. See page 2-6. DS1-2 Cool / Heat Select cooling / heating emergency operation. See page 2-6. DS1-3 ON/OFF Test purposes only. Keep factory setting “OFF”.
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ESIE05-03.book Page 23 Wednesday, April 6, 2005 4:09 PM ESIE05-03 2.
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ESIE05-03.book Page 24 Wednesday, April 6, 2005 4:09 PM Field settings 1 3 2.11 ESIE05-03 Silent Operation Purpose Lower the operation sound of the outdoor unit. Setting Silent Operation can be activated by: 1 Automatic control (By field setting from remote controller) 2 External activation (from optional PCB KRP58M) 2.11.
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ESIE05-03.book Page 25 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Field settings 2.11.2 External activation from optional PCB Graph 1 Silent operation can also be activated from the optional PCB. Transmission connector (on outdoor PCB X6A) Power supply connector (on outdoor PCB X77A) 3 Output on X801M = 12VDC, 12mA Maximum wire length = 100 meter 4 Silent operation will start when the contact on LNOP-COM is closed and will remain active as long as the contact is closed.
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ESIE05-03.book Page 26 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.12 ESIE05-03 I-Demand Function Purpose Set a limitation towards the power consumption from the system.(e.g. budget control, limit power consumption during peak moments,..
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ESIE05-03.book Page 27 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Demand 1 Field settings 1 Power consumption limitation in function of setting on DS1: DS1 SETTING Maximum Power Consumption 1 2 OFF OFF 60% ON OFF 70% OFF ON 80% ON ON 100% Demand 2 Power consumption limitation set to 40%. Demand 3 Forced thermostat OFF.
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ESIE05-03.book Page 28 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.13 ESIE05-03 Setting for Low Humidity Application Purpose Can be set when using the RZQ units for year round cooling in low humidity applications such as computerrooms (EDP rooms), technical rooms, etc...to increase the capacity of the unit.
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ESIE05-03.book Page 29 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Field settings Function details Factory setting Low humidity application setting Low humidity application + freeze up operation prevention Field Setting 16(26)-2-01 16(26)-2-03 16(26)-2-04 Compressor control P The compressor frequency is controlled in function of the target evaporating temperature. P The target evaporating temperature is controlled in function of the cooling load.
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ESIE05-03.book Page 30 Wednesday, April 6, 2005 4:09 PM Field settings 1 Graph 1 ESIE05-03 Target evaporating temperature control in case of factory setting 16(26)-2-01: Te target acceptable area Remote controller setting temp. Te target limitted ≤ 20°C (to protect the comp.) Te target limitted ≤ Indoor temp. – 11° (not to rising wetbulb) 3 Te (see note) target acceptable area P Indoor temp. > setting → Te target down P Indoor temp.
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ESIE05-03.book Page 31 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Graph 2 Field settings Target evaporating temperature control when "low humidity application" is selected. Field setting 16(26)-2-03: 1 Te target acceptable area Remote controller setting temp. Te target Te target limitted ≤ 20°C (°C) (to protect the comp.) Te (see note) target acceptable area P Indoor temp. > setting → Te target down P Indoor temp. < setting → Te target up 3 4 Te target limitted ≥ 0°C Freeze protection (40min.
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ESIE05-03.book Page 32 Wednesday, April 6, 2005 4:09 PM Field settings 1 Graph 3 ESIE05-03 Target evaporating temperature control when "low humidity application + freeze up operation prevention" is selected. Field setting 16(26)-2-04: Te target acceptable area Remote controller setting temp. Te target (°C) Te target limitted ≤ 20°C (to protect the comp.) Te (see note) target acceptable area P Indoor temp. > setting → Te target down P Indoor temp.
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ESIE05-03.book Page 33 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Field settings Capacity 1 When "low humidity application" is selected. Field setting 16(26)-2-03: Indoor Temp. (°C-WB) Outdoor Temp. (°C-DB) 11 -15 0.62 0.76 0.86 0.95 -10 0.62 0.76 0.86 -5 0.62 0.81 0 0.62 5 14 16 18 19 20 22 24 1.00 1.02 1.07 1.11 0.95 1.00 1.02 1.07 1.11 0.91 1.01 1.06 1.16 1.21 1.26 0.81 0.91 1.01 1.06 1.16 1.21 1.26 0.62 0.81 0.91 1.01 1.06 1.16 1.21 1.26 10 0.
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ESIE05-03.book Page 34 Wednesday, April 6, 2005 4:09 PM Field settings 1 2.14 ESIE05-03 Defrost Start Setting See ‘Defrost Operation’ on page 2-19.
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ESIE05-03.book Page 35 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Test Run and Operation Data Part 4 3 Test Run and Operation Data Introduction Overview 1 This chapter contains the following information: P General operation data P Operation ranges. 3 This chapter contains the following topics: Topic See page 3.1–General Operation Data 4–36 3.
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ESIE05-03.book Page 36 Wednesday, April 6, 2005 4:09 PM Test Run and Operation Data 1 3.1 ESIE05-03 General Operation Data Guide Lines for Optimal Operation Condition The operation value guide lines when operating under standard conditions (at Rated frequency) by pushing the test run button on the remote controller are as given in the table below.
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ESIE05-03.book Page 37 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Test Run and Operation Data 1 Standard Conditions Cooling Operation Indoor Unit Conditions 27°C DB/19°C WB Outdoor Unit Conditions 35°C DB Heating Operation 20°C DB 7°C DB/6°C WB During or after maintenance, when the power supply is turned back on, operation restarts automatically by the “auto restart function.” Please exercise the proper caution.
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ESIE05-03.book Page 38 Wednesday, April 6, 2005 4:09 PM Test Run and Operation Data 1 Correlation of Air-Conditioner’s Operation Status and Pressure / Running Current What happens in comparison to normal values is summarized in the table below. (Measured from 15 ~ 20 minutes or more after operation starts.
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ESIE05-03.book Page 39 Wednesday, April 6, 2005 4:09 PM ESIE05-03 3.2 Test Run and Operation Data Operation Range Conditions Operation range: Cooling 1 The illustrations in this section are based on the following conditions: P Equivalent piping length: 7.5 m P Level difference: 0 m P Air flow rate: High. The illustration below shows the operation range. Outdoor temp. (°C DB) Operation range Allowable range of operation (Pull-down) 3 4 5 Indoor temp.
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ESIE05-03.book Page 40 Wednesday, April 6, 2005 4:09 PM Test Run and Operation Data 1 Notes: ESIE05-03 P Depending on operation and installation conditions, the indoor unit can change over to freeze-up operation (Indoor de-icing). P To reduce the freeze-up operation (Indoor de-icing) frequency it is recommended to install the outdoor unit in a location not exposed to wind.
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ESIE05-03.book Page 3 Wednesday, April 6, 2005 4:09 PM ESIE05-03 Disassembly and Maintenance: Outdoor Units Part 5 1 Disassembly and Maintenance: Outdoor Units 1.1 What Is in This Chapter? Introduction This chapter contains the following information on the outdoor units: P Overview 1 3 Disassembly procedures This chapter contains the following topics: Topic See page 1.
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ESIE05-03.book Page 4 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 1.
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ESIE05-03.book Page 5 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.1 Disassembly and Maintenance: Outdoor Units Removal of Outside Panels Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 1 Procedure For the suction grille, pull the lower parts (in 7 places) frontward, disengage the hooks at the top of the grille with a slotted screwdriver, and then push the overall grille downward to disassemble it.
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ESIE05-03.book Page 6 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 1.2.2 ESIE05-03 Removal of Propeller Fan and Fan Motor Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 3 Procedure P Remove the front and top panels in accordance with the Removal Procedure for Outside Panel.
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ESIE05-03.book Page 7 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.3 Disassembly and Maintenance: Outdoor Units Removal of Switch Box Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step P Procedure Remove the front and top panels in accordance with the Removal Procedure for Outside Panel. 1 P Remove all connectors and Faston terminals, which have a connection to the switch box.
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ESIE05-03.book Page 8 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 Step 2 ESIE05-03 Procedure Points Unscrew the 2 screws that fix the switch box. Hook Hook Hook 3 3 In order to remove the switch box, disengage the three clicks (one on the right and two on the left), and then pull out this switch box frontward or upward.
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ESIE05-03.book Page 9 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.4 Disassembly and Maintenance: Outdoor Units Removal of PC Board Ass'y (1) Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step Procedure P Remove the front and top panels in accordance with the Removal Procedure for Outside Panel 1 Remove the PC board (for control use) 1 Points 3 Disconnect all connectors.
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ESIE05-03.book Page 10 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 Step 2 ESIE05-03 Procedure P Points Unscrew a single screw from the PC board ass'y (for control use). Note: The plastic casing and the PC board are bonded to each other. Therefore, for the replacement of these parts, replace by a set of the PC board ass'y.
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ESIE05-03.book Page 11 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.5 Disassembly and Maintenance: Outdoor Units Removal of PC Board Ass'y (2) Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step 2 Procedure Points Remove the PC board (for inverter use) 1 Disconnect all connectors. Unscrew the three screws that fix the mounting plate of electrical components (for control use).
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ESIE05-03.book Page 12 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 1.2.6 ESIE05-03 Removal of Low Pressure Sensor, Electronic Expansion Valve, and Others Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step Procedure Remove the parts related to the outside panel and the switch box in accordance with the Removal Procedure for Outside Panel and others. 1 Remove the low pressure sensor.
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ESIE05-03.book Page 13 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.7 Disassembly and Maintenance: Outdoor Units Removal of Thermistor Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.
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ESIE05-03.book Page 14 Wednesday, April 6, 2005 4:09 PM Disassembly and Maintenance: Outdoor Units 1 1.2.8 ESIE05-03 Removal of Four Way Valve Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step P 3 Procedure Remove the parts related to the outside panel and the switch box in accordance with the Removal Procedure for Outside Panel and others.
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ESIE05-03.book Page 15 Wednesday, April 6, 2005 4:09 PM ESIE05-03 1.2.9 Disassembly and Maintenance: Outdoor Units Removal of Compressor Warning 1 Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Procedure Step P Procedure Remove the parts related to the outside panel and the switch box in accordance with the Removal Procedure for Outside Panel and others.
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ESIE05-03.book Page i Wednesday, April 6, 2005 4:09 PM ESIE05-03 Index 1 Symbols "88" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–22 3 Numerics 4-way valve control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 2–16 A A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE05-03.book Page ii Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 components functional diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PCB layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . switch box layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE05-03.book Page iii Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 Failure of Capacity Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–91 Failure of outdoor unit PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–58 fan and flap operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE05-03.book Page iv Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 M Malfunction Code and LED Display Table Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–35 Outdoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–36 System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE05-03.book Page v Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 Remote Controller Display Malfunction Code and Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–31 S safety devices indoor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–39 outdoor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE05-03.book Page vi Wednesday, April 6, 2005 4:09 PM ESIE05-03 1 U U0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–92 U2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 3–93 U4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .