Service manual

ManualsBrandsMitsubishi ManualsAir ConditionerMS-07RV

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE AIR CONDITIONERS

CONTENTS

1. OVERVIEW OF UNITS······································2

2. SPECIFICATIONS·············································8

3. OUTLINES AND DIMENSIONS························9

4. WIRING DIAGRAM ·········································10

NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

···11

6. TROUBLESHOOTING ····································12

7. ELECTRICAL WORK······································19

8. REFRIGERANT PIPING··································22

9. PARTS LIST····················································23

Air Conditioner Optional Parts

R-Converter Unit

[Model name] [Service Ref.]

PAC-SF29LB PAC-SF29LB

No.OC296

2003

R-Converter Unit

w Refer to the technical & service manuals of the indoor

and outdoor units.

OC296--1.qxp 03.6.11 9:36 AM Page 1

Summary of content (24 pages)

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OC296--1.qxp 03.6.11 9:36 AM Page 1 SPLIT-TYPE AIR CONDITIONERS 2003 No.OC296 TECHNICAL & SERVICE MANUAL Air Conditioner Optional Parts R-Converter Unit [Model name] [Service Ref.] PAC-SF29LB PAC-SF29LB w Refer to the technical & service manuals of the indoor and outdoor units. CONTENTS 1. OVERVIEW OF UNITS······································2 2. SPECIFICATIONS ·············································8 3. OUTLINES AND DIMENSIONS ························9 4.
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OC296--1.qxp 1 03.6.11 9:36 AM Page 2 OVERVIEW OF UNITS 1-1. SYSTEM OUTLINE 1-1-1. System example SL series R-Converter Unit R-Converter Unit R-Converter Unit R-Converter Unit R-Converter Unit MS series Outdoor unit PUMY series 1-2.
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OC296--1.qxp 03.6.11 9:36 AM Page 3 1-3. METHOD FOR IDENTIFYING ■ R-Converter Unit PAC - SF 29 LB Lev Box (Indispensable) Optional parts of PAC Design code No. Symble of factory 1-4. TYPICAL COMBINATION EXAMPLE PUMY-P125YMA R-Converter Unit (PAC-SF29LB) R-Converter Unit (PAC-SF29LB) Living MSH-18RV R-Converter Unit (PAC-SF29LB) R-Converter Unit (PAC-SF29LB) Bedroom (1) Dining SLH-1.
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OC296--1.qxp 03.6.11 9:46 AM Page 4 1-5. INSTALLATION 1-5-1. Installing the R-Converter Unit (mm) Parts to procure locally • Suspension bolts or anchor bolts : W3/8 (M10) • Nut : W3/8 (M10) • Washer : W3/8 (M10) Installing the unit in a ceiling (1) Install the suspension bolts Wooden structures • Use tie beams (single storied houses) or second floor beams (two story houses) as reinforcing members.
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OC296--1.qxp 03.6.11 9:36 AM Page 5 1-5-2. Installing Refrigerant Piping (mm) Check the R-Converter unit accessories and parts 1 Pipe cover o 2 2 Band (long) o 4 3 Thermistor holder—[6.35 (liquid) o 1 4 Thermistor holder—[9.52 (liquid or gas) o 1 5 Thermistor holder—[12.7 (gas) o 1 6 Thermistor holder—[15.
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OC296--1.qxp 03.6.11 9:36 AM Page 6 1-5-3. Installing the thermistors (mm) Be sure to install the thermistors (gas and liquid) supplied with the unit as shown in the illustration. • If the thermistors are not installed, the unit will not operate. If the thermistors are installed incorrectly, the unit will not operate properly. Take precaution so that condensation does contact the thermistor leads or enters the electrical devices.
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OC296--1.qxp 03.6.11 9:36 AM Page 7 (2) Insulate the thermistors with the supplied thermal insulation 7. (3) Cut a 100 mm slit on the top portion of the extension piping pipe covers, and then cover the thermistors with the pipe covers. (4) Wrap the thermal insulation covering the thermistor with tape. . Caution : Be sure to take out the thermistor lead from above. (5) Cover the flare and thermistor with the thermal insulation (for protecting the flare) supplied with the indoor unit.
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OC296--1.qxp 2 03.6.11 9:36 AM Page 8 SPECIFICATIONS R-Converter Unit : PAC-SF29LB Model name Connectable number of indoor units Total capacity index of indoor units to be connected Power supply External finish Drain hose size (on site) Width Depth Dimensions Height Weight Liquid Piping connection (Flare) Gas To indoor unit Wiring To outdoor unit PAC-SF29LB 1 Type 20-63 Single phase, 220/230/240V, 50Hz, Single phase, 220V, 60Hz Hot-dip Zinc - coated steel (No external finish) — 280 220 126 2.8 6.
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Terminal block:TB3 DC12V Terminal block:TB5 DC24V-30V N 2-Electric wire inlet Wiring Controller board Terminal block:TB2 /N 220-240V/220V 50/60Hz L N Wiring 300 M1 M2S 3 85 260 Band Suspension bolt pitch CN21 LIQUID 18 GAS CN3G 40 8 Electric cover 2✕2- [6 hole 40 1/4F 1/4F 110 Terminal block Band Wiring Band FUSE 3.15A 250V 26 280 12 3 126 * Suspension bolt or Anchor bolt : M10(W3/8) * Weight : 2.
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OC296--1.qxp 4 03.6.
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OC296--1.qxp 03.6.11 9:37 AM 5 Page 11 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION 5-1.
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OC296--1.qxp 6 03.6.11 9:37 AM Page 12 TROUBLESHOOTING 6-1. Test Run . Caution : Before operating the unit, check that the wiring, piping, and thermistors are installed and that the switches have been set. Refer to the "Test run" section of the indoor units and outdoor unit installation manuals. After installation of an indoor unit, R-Converter unit, and outdoor unit, begin a test run to check water leaks in the R-Converter unit.
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OC296--1.qxp 03.6.11 9:37 AM Page 13 6-2. Self-diagnosis and Remedy (Display on Outdoor controller board) Error codes will be displayed in LD1 on the outdoor controller board if abnormalities occur while unit is running. Therefore, check LD1 on the outdoor controller board first in that case. If no code is displayed in LD1, check LED on the indoor controller board.
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OC296--1.qxp 03.6.11 9:37 AM Page 14 6-3.
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OC296--1.qxp 03.6.11 9:37 AM Page 15 6-4. How to check the parts PAC-SF29LB 6-4-1. Thermistor Check points Parts name Liquid pipe thermistor (TH22) Disconnect the connector then measure the resistance using a tester. (Surrounding temperature 10°C-30°C) Gas pipe thermistor (TH23) Normal Abnormal 4.3k"-9.
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OC296--1.qxp 03.6.11 9:37 AM Page 16 6-4-2. Linear Expansion Valve Parts name Check points Disconnect the connector then measure the resistance valve using a tester. Refer to the next page for a detail. Linear expansion valve 4 M 6 1 Normal Abnormal Brown 2 (1)-(5) (2)-(6) (3)-(5) (4)-(6) White-Red Yellow-Brown Orange-Red Blue-Brown Open or short 4 150k" i10% 2 Yellow 3 Orange 5 1 Blue Red White 3 5 6 Linear expansion valve 1 Operation summary of the linear expansion valve.
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OC296--1.qxp 03.6.11 9:37 AM Page 17 3 Troubleshooting Problem Malfunction in microprocessor operating circuit Check point Remove the connector from the controller board and connect diagnostic 6 LEDs. 5 4 3 2 1 Corrective measure Replace the R-Converter controller board 1k" LED Pulses will be issued for 10 seconds when the power is turned on. It indicates that there is an abnormality in the operating circuit if any LEDs don't turn on or off.
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OC296--1.qxp 03.6.11 9:37 AM Page 18 6-5. Monitoring Function 6-5-1. R-Converter Unit Operating status When power supply is turned on. During start-up Completion on start-up Operating status of the indoor unit. During operation Under suspension Error occurring on R-Converter Unit When main supply for R-Converter unit is OFF. (220V~240V 50Hz/220V 60Hz) LED1 Green LED2 Red LED3 Red Lighting OFF — Blinking (ever 1.0 sec.) OFF Blinking (ever 0.2 sec.) Blinking (ever 0.2 sec.
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OC296--1.qxp 03.6.11 9:37 AM 7 Page 19 ELECTRICAL WORK 7-1. Caution (1) Follow local regulations and ordinances for technical standards related to electrical equipment, wiring, and specifications of each electric power company. (2) Wiring for control (hereinafter referred to as transmission line) must be situated at least 5 cm from the power source wiring so that it is not influenced by electrical noise. (Do not insert transmission line and power source wire in the same conduit.
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OC296--1.qxp 03.6.11 9:37 AM Page 20 . Warning : • Be sure to use the specified wires for connection so that no external force is imparted to the terminal connections. If the wires are not securely connected, a fire can occur. • Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current. . Caution : • Some installation sites may require a ground-fault interrupter.
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OC296--1.qxp 03.6.11 9:37 AM Page 21 7-4. Wiring (mm) (1) Remove the electrical cover. (2) Insert the wiring and each thermistor into the unit, and then fasten them with the bands on the inside of the unit. (3) Connect each wire to the terminal block securely. (4) Connect each thermistor to the controller board. • Thermistor (liquid) ➝ CN21 • Thermistor (gas) ➝ CN3G (5) After installing the unit, install the electric cover.
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OC296--1.qxp 8 03.6.11 9:37 AM Page 22 REFRIGERANT PIPING Indoor unit connection example Refrigerant piping system • Connect one R-Converter unit per indoor unit. • Connect the R-Converter unit the liquid pipe. • The thermistor-L (liquid) is installed close to the connecting point of the extension piping (liquid) for the indoor unit. • The thermistor-G (gas) is installed close to the connecting point of the extension piping (gas) for the indoor unit.
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OC296--1.qxp 03.6.11 9:37 AM 9 Page 23 PARTS LIST PAC-SF29LB 1 12 2 11 3 10 9 4 5 6 8 7 , Q ty/set No. 1 Part No. Part Name Specification Remarks PAC-SF29LB (Drawing No.) 1 LEV BOX Wiring RecomDiagram mended , Symbol Q ty (RG02A916G05) 1 R.C 1 TB5 2 T7W E17 315 CONTROLLER BOARD 3 T7W E00 716 TERMINAL BLOCK 4 T7W E00 241 TH.
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OC296--1.qxp 03.6.11 9:37 AM Page 24 HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN cCopyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jun. 2003 No.OC296 PDF Made in Japan. New publication, effective Jun. 2003 Specifications subject to change without notice.