3WAY VRF System U-72MF1U9 U-72MF1U9E * U-96MF1U9 U-96MF1U9E * Section 1 2 Model No. Outdoor Unit Class Model Name 3 72 U-72MF1U9 U-72MF1U9E* 96 U-96MF1U9 U-96MF1U9E* Refrigerant R410A is used in the outdoor units. * Salt-Air Damage Resistant Specifications.
thin aluminum fins on the air conditioner can cut your fingers. IMPORTANT! Please Read Before Starting When Installing… This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must: Carefully read this instruction booklet before beginning.
When Servicing CAUTION • Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring. • Keep your fingers and clothing away from any moving parts. • Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced. • Do not clean inside the indoor and WARNING outdoor units by users. Engage authorized dealer or specialist for cleaning.
Precautions for Installation Using New Refrigerant 1. Care regarding tubing 1-1. Process tubing Material: Use C1220 phosphorous deoxidized copper specified in JIS H3300 “Copper and Copper Alloy Seamless Pipes and Tubes.” For tubes of ø7/8" (ø22.22 mm) or larger, use C1220 T-1/2H material or H material, and do not bend the tubes. Tubing size: Be sure to use the sizes indicated in the table below. Use a tube cutter when cutting the tubing, and be sure to remove any flash.
3-2. Use R410A exclusive cylinder only. Valve Single-outlet valve (with siphon tube) Liquid refrigerant should be recharged with the cylinder standing on end as shown. Liquid New refrigerant R410A cannot be used for earlier models 1. Compressor specifications are different. If recharging a R22 or R407C compressor with R410A, durability will significantly decrease since some of the materials used for compressor parts are different. 2. Existing tubing cannot be used (especially R22).
Contents Section 1: OUTLINE OF 3WAY VRF SYSTEM ...................................................................... 1-1 1. Line-up ............................................................................................................ 1-2 2. Features of 3WAY VRF SYSTEM ....................................................................1-4 3. Salt-Air Damage Resistant Specifications .......................................................1-7 Section 2: DESIGN OF 3WAY VRF SYSTEM .......................
Outline of 3WAY VRF SYSTEM Contents 1. OUTLINE OF 3WAY VRF SYSTEM 1. Line-up ............................................................................................................................... 1-2 2. Features of 3WAY VRF SYSTEM ....................................................................................... 1-4 3. Salt-Air Damage Resistant Specifications ....................................................................... 1-7 1 2 3 4 5 6 7 8 1-1 TD831158-00_3WAY_VRF_SYS.
Outline of 3WAY VRF SYSTEM 1.
Outline of 3WAY VRF SYSTEM 1. Line-up Type 72 Capacity: BTU/h (kW) Cooling / Heating 72,000 (21.1) / 81,000 (23.7) Air intake 37-1/2 (Maximum dimensions) Outdoor units Air intake U-72MF1U9 U-72MF1U9E * Air intake Air 35 intake (Ceiling panel dimensions) Outdoor Unit Air discharge 82-9/16 1 2 unit : in. 96 Capacity: BTU/h (kW) Cooling / Heating 96,000 (28.1) / 108,000 (31.
Outline of 3WAY VRF SYSTEM 2. Features of 3WAY VRF SYSTEM 2-1. Outline of 3WAY VRF SYSTEM System example CONCENTRATION Since all pipings are concentrated into one pipe shaft, you can minimize piping space and construction labor CONNECTION * Panasonic makes it possible to link outdoor unit together for a large capacity (24-Ton). Solenoid valve kit 1 Indoor unit If indoor/outdoor units need servicing, a ball valve (field supply) cuts off non-operational units to let other units stay running.
Outline of 3WAY VRF SYSTEM 2. Features of 3WAY VRF SYSTEM Dimensions 6, 8 Ton 6-Ton 8-Ton 35 (Ceiling panel dimensions) 36-1/4 (Installation hole pitch) 37-1/2 (Maximum dimensions) Air intake U-72MF1U9, U-72MF1U9E* U-96MF1U9, U-96MF1U9E* Air intake Air intake Air intake 31-1/8 (Installation hole pitch) 35 (Ceiling panel dimensions) 4 Unit: in.
Outline of 3WAY VRF SYSTEM 2. Features of 3WAY VRF SYSTEM Capacity control The compressor combination (DC inverter compressor + constant-speed compressor) allows smooth capacity control from 0.6-Ton to 24-Ton. Realization of smooth capacity control from 0.6-Ton to 24-Ton Capacity control is possible smoothly with a DC inverter compressor. The right graph shows the image of the operating combination of compressors in case of 24-Ton system.
Outline of 3WAY VRF SYSTEM 3. Salt-Air Damage Resistant Specifications Specifications Relevant Parts Material Standard Specifications Salt-Air Damage Resistant Specifications Outdoor unit model name ended with letters "U9E".
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Design of 3WAY VRF SYSTEM Contents 2. DESIGN OF 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator ........................................................................ 2-2 1-1. Operating Range ............................................................................................................. 2-2 1-2. Procedure for Selecting Models and Calculating Capacity ........................................... 2-3 1-3. Tubing Length ................................................................
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-1. Operating Range Heating and Cooling 77 75 68 1 Outdoor air intake temp. F (WB) 59 50 Operating range 41 32 23 14 5 -4 50 59 68 77 86 95 Indoor air intake temp. F (DB) 2 Heating Cooling 5 6 113 104 68 95 59 Outdoor air intake temp. F (WB) 4 Outdoor air intake temp. F (DB) 3 77 86 77 Operating range 68 59 50 41 Operating range 32 23 14 5 41 -4 32 7 50 50 50 68 77 86 95 Indoor air intake temp.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-2. Procedure for Selecting Models and Calculating Capacity Model Selection Procedure Select the model and calculate the capacity for each refrigerant system according to the procedure shown below. Calculation of the indoor air-conditioning load Calculate the maximum air-conditioning load for each room or zone. Selection of an air conditioning system Select the ideal air conditioning system for air conditioning of each room or zone.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-3. Tubing Length Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown in the figure below. Main tubing length LM = LA + LB … < 1. _ 262 ft 2. Main distribution tubes LC – LH are selected according to the capacity after the distribution joint. 3.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Refrigerant Charge Amount at Shipment (for outdoor unit) DC (oz) U-72MF1U9 U-72MF1U9E U-96MF1U9 U-96MF1U9E 416 416 Additional Refrigerant Charge Additional refrigerant charge amount is calculated from the liquid tubing total length as follows. Amount of Refrigerant Charge Per ft., According to Liquid Tubing Size Liquid tubing size (in. (mm)) Amount of refrigerant charge (oz/ft.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-4. Tubing Size Table 2-2 Main Tubing Size (LA) BTU/h (kW) Total system tonnage Combined outdoor models 72,000 (21.1) 96,000 (28.1) 139,000 (40.7) 168,000 (49.2) 192,000 (56.3) 203,000 (59.5) 240,000 (70.3) 264,000 (77.4) 288,000 (84.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Table 2-5 Amount of Refrigerant Charge Liquid tubing size (in. (mm)) Amount of refrigerant charge (oz/ft.) ø1/4" (ø6.35) 0.279 ø3/8" (ø9.52) 0.602 ø1/2" (ø12.7) 1.38 ø5/8" (ø15.88) 1.99 ø3/4" (ø19.05) 2.78 ø7/8" (ø22.22) 3.93 Table 2-6 Indoor Unit Tubing Connection Size ( Indoor unit type Suction tubing Distribution joint-solenoid Discharge tubing valve kit tubing Liquid tubing 7 9 1– 40 12 ) Unit: in.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-5. Installation Standards Relationship between A/C units and refrigerant tubing 4-tube layout Outdoor unit Solenoid valve kit 3-tube layout Outdoor unit Suction tube Discharge tube Liquid tube Suction tube Discharge tube Liquid tube Balance tube 2-tube layout Indoor unit Gas tube Liquid tube Install the solenoid valve kit 98 ft. or less from the indoor unit.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-6. Straight Equivalent Length of Joints Design the tubing system by referring to the following table for the straight equivalent length of joints. Table 2-8 Straight Equivalent Length of Joints Gas tubing size (in.(mm)) 1/2" (12.7) Unit: ft. 5/8" 3/4" (15.88) (19.05) 7/8" (22.22) 1" (25.4) 1-1/8" (28.58) 1-3/8" (38.1) 90° elbow 1 1.1 1.4 1.6 1.7 1.9 2.5 45° elbow 0.8 0.9 1 1.2 1.3 1.4 1.8 3 3.4 4.1 4.7 5.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Check of limit density WARNING Always check the gas density limit for the room in which the unit is installed. 1-7. Check of limit density When installing an air conditioner in a room, it is necessary to ensure that if the refrigerant gas accidentally leaks out, its density does not exceed the limit level for that room. CAUTION 1 Pay special attention to any location, such as a basement, etc.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-8. Calculation of Actual Capacity of Indoor Unit Calculating the actual capacity of each indoor unit Because the capacity of a multi air-conditioner changes according to the temperature conditions, tubing length, elevation difference and other factors, select the correct model after taking into account the various correction values. When selecting The model, calculate the corrected capacities of the outdoor unit and each indoor unit.
Design of 3WAY VRF SYSTEM 1.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Indoor unit capacity correction coefficient Refer to the graph below for the correction coefficients for Ruc and Ruh. Indoor unit capacity correction coefficient for Ruc (cooling) Indoor unit capacity correction coefficient for Ruh (heating) 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Corrected indoor/outdoor capacity ratio (Ruc or Ruh) 1.8 1.9 2.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Graph of indoor unit capacity characteristics (2 – (2)) indicates the rating point. 120 110 100 90 80 57 59 60 62 64 66 68 69 71 73 75 77 Indoor air intake temp. ( °F WB) Indoor unit heating capacity characteristics Rate of heating capacity change (%) Rate of cooling capacity change (%) Indoor unit cooling capacity characteristics indicates the rating point.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator 1-9. Capacity Correction Graph According to Temperature Condition Capacity characteristics (The corrected capacity for specific temperature conditions can be found from the graphs below.) < Cooling > < Heating > 100 90 80 Indoor F Indoor air air intake intake temp. temp. (WB) (WB) == 71 72°F WB = 61°F 110 °F 72 )= WB ( .
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator Rated performance values Item Cooling Heating Cooling capacity BTU/h(kW) Power consumption kW Heating capacity BTU/h(kW) Power consumption kW 72 72,000(21.1) 5.30 81,000(23.7) 5.79 96 96,000(28.1) 7.75 108,000(31.6) 8.6 Type 1-10.
Design of 3WAY VRF SYSTEM 1. Model Selecting and Capacity Calculator * If the maximum tubing length (L1) exceeds 295 ft (equivalent length), increase the tubing size of the main liquid, gas tubes(LM) by one rank. However, the upper limit for the gas tube size is ø1-3/8". Increasing the tubing size of the gas tubes can reduce the loss of capacity caused by longer tubing lengths. Refer to Table 2-11 to increase the tubing size. However, the maximum allowable tubing length must not be exceeded.
Design of 3WAY VRF SYSTEM 2. System Design 2-1. System Example (1) Below are the tables created using the “PAC System Diagram Software.” Details of the calculations are shown in (2). As the maximum tubing length (equivalent length) is over 295ft. in the following selection sample, the item (3) is applied due to the main tube size up.
Design of 3WAY VRF SYSTEM 2. System Design Indoor unit changes The indoor unit in room 4, where the corrected indoor unit capacity is less than the maximum load, is increased by one rank.
Design of 3WAY VRF SYSTEM 2. System Design (3) Increasing the size of the refrigerant tubing Increasing the tubing size of the gas tubes can reduce the loss of capacity caused by longer tubing lengths. Refer to Table 2-11 to increase the tubing size. However, the maximum allowable tubing length must not be exceeded. * The amount of additional refrigerant charge is determined from the liquid tube size only.
Design of 3WAY VRF SYSTEM 2. System Design Additional refrigerant charge before extension La Lb LA LB LC LD LE1 LG LH L1 L2 L3 L7 L8 L9 Liquid tube diameter Tubing length (ft) (A) Additional refrigerant charge per 1 ft (oz/ft) (B) (A) × (B) oz ø1/2 ø3/8 ø3/4 ø1/2 ø1/2 ø1/2 ø3/8 ø5/8 ø3/8 ø3/8 ø1/4 ø1/4 ø3/8 ø1/4 ø1/4 6.6 65.6 26.2 19.7 19.7 19.7 16.4 26.2 13.1 9.8 9.8 9.8 9.8 9.8 13.1 1.38 0.602 2.78 1.38 1.38 1.38 0.602 1.99 0.602 0.602 0.279 0.279 0.602 0.279 0.279 9.055 39.501 72.966 27.
Design of 3WAY VRF SYSTEM 2. System Design WARNING Always check the gas density limit for the room in which the unit is installed. Checking of limit density When installing an air conditioner in a room, it is necessary to ensure that even if the refrigerant gas accidentally leaks out, its density does not exceed the limit level for that room. 1 2 3 4 5 6 7 8 2 - 22 TD831158-00_3WAY_VRF_SYS.
Design of 3WAY VRF SYSTEM 2. System Design 2-3. Installing Distribution Joint [Header joint system] Be sure to solidly weld shut the T-joint end (marked by “X” in the figure). In addition, pay attention to the insertion depth of each connected tube so that the flow of refrigerant within the T-joint is not impeded. When using the header joint system, do not make further branches in the tubing. Do not use the header joint system on the outdoor unit side.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring bility for any damage or misoperation that occurs as a result of such unauthorized changes. (7) Regulations on wire diameters differ from locality to locality. For field wiring rules, please refer to your LOCAL ELECTRICAL CODES before beginning. You must ensure that installation complies with all relevant rules and regulations.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring 3-3. Wiring System Diagram L1 Power supply 208 / 230V, 60Hz, 1-PH L2 Remote Controller WHT 1 BLK 2 Indoor unit (No. 1) * Outdoor unit INV unit L1 L2 Ground B 1 2 U1 1 U2 2 R1 3 R2 4 A Indoor unit (No. 2) * L1 Power supply 208 / 230V, 60Hz, 1-PH L2 * A L1 L2 L3 Inter-outdoor unit control wiring Outdoor unit INV unit D L1 * L2 Ground U1 U2 B L2 L3 3 L1 L2 L3 Ground R2 A Indoor unit (No.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring CAUTION (1) When linking outdoor units in a network, disconnect the terminal extended from the short plug (CN003, 2P Black, location: right bottom on the outdoor main control PCB) from all outdoor units except any one of the outdoor units. (When shipping: In shorted condition.) For a system without link (no connection wiring between outdoor units), do not remove the short plug. (2) Do not install the inter-unit control wiring in a way that forms a loop. (Fig.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, ensure that all wiring is tightly connected. When connecting each power wire to the terminal, follow the instructions on “How to connect wiring to the terminal” and fasten the wire securely with the fixing screw of the terminal plate.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring 3-4. Important Note When Wiring for Common Type Connect the wires referring to the diagram. Note that the control wirings (Low voltages) shall be segregated from the power supply wires (High voltage) as follows: 1. Connect the Inter-unit control wiring to U1/U2 terminals and the remote control wire to R1/R2. (excepting K1 type). U1 Type Earth screw 2. Connect the power supply wires to “L1, L2” of the terminal block.
Design of 3WAY VRF SYSTEM 3.
Design of 3WAY VRF SYSTEM 3.
Design of 3WAY VRF SYSTEM 3. Electrical Wiring 3-5. Important Note When Wiring for Y1 Type Connect the wires referring to the diagram. Note that the control wirings (Low Voltages) shall be segregated from the power supply wires (High Voltage) as follows: 1. Connect the Inter-unit control wiring to U1/U2 terminals and the remote control wire to R1/R2.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 4-1. Selecting the Installation Site for Outdoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. damp, humid or uneven locations Outdoor unit indoors (no-ventilation location) Heat source DO: choose a place as cool as possible. Fig. 2-6 choose a place that is well ventilated. allow enough room around the unit for air intake/ Example of installation of 2 units (When wall height is below 6 ft.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 4-2. Removing Fin Guard for Heat Exchanger After installation of the outdoor unit, detach the fin guard for heat exchangers as following steps. 1. Cut out the fin guard entirely attached to the panel and remove it from the outdoor unit. Pay careful attention not to damage the fin when cutting out the fin guard. 2. If there is a case where easy to touch the sharp aluminum fin of the outdoor unit, be sure to attach a snow-proof ducting to the unit.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 33-1/4 35 (Ceiling panel dimensions) 35-1/4 (Maximum bracket dimensions) 4-6.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 9-1/2 4-7. Dimensions of Snow Ducting Reference diagram for snow-proof ducting (field supply) 31-1/2 9-1/2 31-1/2 (Air intake duct) 33-3/16 (Air outlet duct) 35 (Ceiling panel dimensions) (54) 31-1/2 54 31-1/2 Air direction: Front direction Ceiling panel 9-1/2 9-1/2 9-1/2 9-1/2 35 (Ceiling panel dimensions) 32-7/8 unit: in. 9-1/2 35 (Ceiling panel dimensions) 32-7/8 1 1 106-1/8 (32-1/8) 1 pc.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 4-8. Transporting the Outdoor Unit When transporting the unit, have it delivered as close to the installation site as possible without unpacking. Use a hook for suspending the unit. (Fig. 2-12) CAUTION When hoisting the outdoor unit, pass ropes or straps under the bottom plate as shown in the figure at right. When hoisting, the angle between the rope and top panel must be 70° or greater so that the rope does not come into contact with the fan guard.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 4-10. Remove the Brackets Used for Transport After installing the unit, remove the 2 transport brackets from the front and rear (4 brackets total). (Fig. 2-16) Remove the 2 screws (8 screws total) Remove the 2 transport brackets from the front and rear (4 brackets total) Fig. 2-16 4-11. Routing the Tubing The tubing can be routed out either from the front or from the bottom. (Fig. 2-17) The connecting valve is contained inside the unit.
Design of 3WAY VRF SYSTEM 4. Installation Instructions 4-12. Prepare the Tubing Material: Use C1220 phosphorous deoxidized copper as described in JIS H3300, “Copper and Copper Alloy Seamless Pipes and Tubes.” (For tubes that are ø1" (ø25.4 mm) or larger, use 1/2H material or H material. For all others use O material.) Tubing size Use the tubing size indicated in the table below. When cutting the tubing, use a tube cutter, and be sure to remove any burrs. (The same applies to distribution tubing (optional).
Design of 3WAY VRF SYSTEM 4. Installation Instructions Tighten each cap as specified below. Valve cap Tightening torque for each cap Service port cap (width 19/32") 60 – 100 lbs · in (70 – 120 kgf · cm) Valve cap (width 55/64") 170 – 220 lbs · in (200 – 250 kgf · cm) Flare nut (valve dia. ø3/8") 300 – 360 lbs · in (340 – 420 kgf · cm) Flare nut Do not apply an adjustable wrench to the hexagonal part.
Design of 3WAY VRF SYSTEM 5. HOW TO PROCESS TUBING 5. HOW TO PROCESS TUBING Deburring The liquid tubing side is connected by a flare nut, and the gas tubing side is connected by brazing. Before After 5-1. Connecting the Refrigerant Tubing Use of the Flaring Method Many of conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts.
Design of 3WAY VRF SYSTEM 5. HOW TO PROCESS TUBING Caution Before Connecting Tubes Tightly (1) Apply a sealing cap or water-proof tape to prevent dust or water from entering the tubes before they are used. (2) Be sure to apply refrigerant lubricant to the matching surfaces of the flare and union before connecting them together. This is effective for reducing gas leaks. (Fig.
Design of 3WAY VRF SYSTEM 5. HOW TO PROCESS TUBING 5-3. Insulating the Refrigerant Tubing Tubing Insulation Thermal insulation must be applied to all unit tubing, including the distribution joint (purchased separately). (Fig. 2-25) Two tubes arranged together Insulation * For gas tubing, the insulation material must be heat resistant to 248°F or above. For other tubing, it must be heat resistant to 176°F or above. Insulation material thickness must be 25/64 in. or greater.
Design of 3WAY VRF SYSTEM 5. HOW TO PROCESS TUBING 5-4. Taping the Tubes (1) At this time, the refrigerant tubes (and electrical wiring if local codes permit) should be taped together with armoring tape in 1 bundle. To prevent the condensation from overflowing the drain pan, keep the drain hose separate from the refrigerant tubing. (2) Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall.
Design of 3WAY VRF SYSTEM 6. AIR PURGING 6. AIR PURGING Vacuum pump Manifold gauge Outlet Inlet Air and moisture in the refrigerant system may have undesirable effects as indicated below.
Design of 3WAY VRF SYSTEM 6. AIR PURGING (3) Do a leak test of all joints of the tubing (both indoor and outdoor) and all service valves. Bubbles indicate a leak. Wipe off the soap with a clean cloth after a leak test. Manifold valve Pressure gauge Lo Hi (4) After the system is found to be free of leaks, relieve the nitrogen pressure by loosening the charge hose connector at the nitrogen cylinder. When the system pressure is reduced to normal, disconnect the hose from the cylinder.
Design of 3WAY VRF SYSTEM 6. AIR PURGING (2) When the desired vacuum is reached, close the “Lo” knob of the manifold valve and turn off the vacuum pump. Please confirm that the gauge pressure is under –14.7 psig (–755 mmHg, 5 Torr) after 4 to 5 minutes of vacuum pump operation. Manifold valve Pressure gauge Lo Hi Valve Charging additional refrigerant CAUTION Use a cylinder designed for use with R410A.
Design of 3WAY VRF SYSTEM 7. Optional Parts 7-1. Distribution Joint Kits CZ-P900PH1U (for R410A) How to Attach Distribution Joint 1. Accompanying Parts Check the contents of your distribution joint kit. 2. Distribution Joint Kits (with insulation) CZ-P900PH1U USE:For outdoor unit (Capacity after distribution joint is 90.0kW or less.
Design of 3WAY VRF SYSTEM 7. Optional Parts The distribution joint can be either horizontal or vertical. In the case of horizontal, the L-shaped tubing must be slanted slightly upward (15° to 90° ).
Design of 3WAY VRF SYSTEM 7. Optional Parts CZ-P224BH1U, CZ-P680BH1U, CZ-P1350BH1U (for R410A) How to Attach Distribution Joint 1. Accompanying Parts Check the contents of your distribution joint kit. 2. Distribution Joint Kits (with insulation) CZ-P224BH1U USE:For Indoor unit(Capacity after distribution joint is 22.4kW or less.
Design of 3WAY VRF SYSTEM 7. Optional Parts Size of connection point on each part (Shown are inside diameters of tubing) Size Part A Part B Part C Part D Part E Part F Part G Part H Part I mm Ø38.1 Ø34.93 Ø28.58 Ø25.4 Ø22.22 Ø19.05 Ø15.88 Ø12.7 Ø9.52 Inch 1-1/2 1-1/4 1-1/8 1 7/8 3/4 5/8 1/2 3/8 3. Making Branch Connections Using a tube cutter,cut the joints at the diameter required to match the outside diameter of the tubing you are connecting.
Design of 3WAY VRF SYSTEM 7. Optional Parts 7-2. Solenoid Valve Kit for 3WAY VRF System CZ-P56HR1U, CZ-P160HR1U For safety installation and trouble-free operation, you must: Carefully read this instruction booklet before beginning. Follow each installation or repair step exactly as shown. Observe all local, state, and national electrical codes. Pay close attention to all warning and caution notices given in this manual.
Design of 3WAY VRF SYSTEM 7. Optional Parts Be sure to secure the solenoid valve kit to the structure and the hanging bolts, etc. using the top or side holes of the hanging hooks. Do not place the solenoid valve kit directly on the ceiling surface. When installing the solenoid valve kit, remember to install it with the top surface facing upward. (See the figure shown in the subsection "How to use the fittings" in " 3. Valve Dimensions and Hanging Method.
Design of 3WAY VRF SYSTEM 7. Optional Parts How to use the fittings Suspension bolt (3/8" or M10) (field supplied) Nut (field supplied) (3/8" or M10) M4 screw (M4 × 15/32") Washer Suspension hook M4 screw (M4 × 15/32" : supplied ) Never use a long screw other than the accessory screw. This may bore a hole through the tube surface, causing refrigerant leakage. Install the hanging hook with supplied 4 screws (M4 X 15/32") taking care of the positioning.
Design of 3WAY VRF SYSTEM 7. Optional Parts 3. Wiring Solenoid valve relay kit Indoor Unit 5P connector ELECTRICAL BOX Class field supplied Indoor PCB Power Solenoid valve Control PCB Wiring from indoor unit PCB 3-Way connect wire (6.5ft ) / supplied G 3 2 G 1 2 2 3 3 4 4 5 Terminal base 2 1 1 5 1 Solenoid valve kit It requires that the Class 5 wires / field supplied (Class , 98ft Max.) wire and Class Terminal base wire should be separated. 4. Procedure : 1.
Design of 3WAY VRF SYSTEM 7. Optional Parts 6. Electrical Wiring Diagrams Make sure that the power supply wiring, communication wiring and 3-way wiring will not be crossed each other. U1 Type Y1 Type Solenoid valve relay kit Solenoid valve relay kit 1 2 3 D1 Type 4 Unscrew the tapping screws and remove the bracket. Bracket 5 Tapping screws (4 pcs.) Reinstall the bracket with the tapping screws. Turn 180 degrees (upside-down). 6 7 Only for 3-Way connect wire, fix with a clip.
Design of 3WAY VRF SYSTEM 7. Optional Parts F1 Type Solenoid valve relay kit 1 E1 Type 2 3 Solenoid valve relay kit Put the 3-way connect wire through the eyelet. 4 K1 Type For wall-mount type (K1 type), install the solenoid valve relay kit on the wall. Important: Installation behind the wall or ceiling is required that the maintenance should become capable. 5 Solenoid valve relay kit 6 Solenoid valve relay kit 7 8 2 - 56 TD831158-00_3WAY_VRF_SYS.
Design of 3WAY VRF SYSTEM 7. Optional Parts T1 Type Common use Only for 3-Way connect wire, fix with a clip. 3-Way wiring connector Model : S-12MT1U6/ S-18MT1U6 1 Solenoid Valve Relay Kit Open the knock-out hole and install the eyelet (Ø1-3/16") supplied with the indoor unit. Then put the 3-way connect wire through the eyelet. 2 3 Model : S-24MT1U6 4 5 A A Solenoid Valve Relay Kit 6 Open the knock-out hole and install the eyelet (Ø1-3/16") supplied with the indoor unit.
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Control of 3WAY VRF SYSTEM Contents 3. Control of 3WAY VRF SYSTEM 1. Main Operating Functions 2. Wireless Remote Controller 3. Timer Remote Controller 4. Simplified Remote Controller 5. System Controller 6. Schedule Timer 7. Intelligent Controller (CZ-256ESMC1U) 8. Communication Adaptor (CZ-CFUNC1U) 9. Remote Sensor 10. LonWorks Interface (CZ-CLNC1U) * Refer to the 2WAY VRF SYSTEM TECHNICAL DATA (TD831157) 1 2 3 4 5 6 7 8 3-1 TD831158-00_3WAY_VRF_SYS.
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3WAY VRF SYSTEM Unit Specifications Contents 4. 3WAY VRF SYSTEM UNIT SPECIFICATIONS 1. Outdoor Unit ..................................................................................................................... 4-2 1-1. Specifications .............................................................................................................. 4-2 1-2. AHRI Registration Values ........................................................................................ 4-11 1-3. Dimensional Data .......
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 1-1. Specifications Unit Specifications (1) MODEL NAME MODEL No. SOURCE PERFORMANCE 3WAY SYSTEM Capacity Control Outdoor Unit <6-Ton> U-72MF1U9, U-72MF1U9E* 208-230V/3N/60Hz Cooling capacity Heating capacity UNIT DIMENSIONS Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 72,000 (21.1) 81,000 (23.7) 82-9/16 (2097) 35 (890) Ceiling dimension : 35 (890) 573 (260) Silky shade (1Y 8.5 / 0.5) lbs.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (2) MODEL NAME MODEL No. SOURCE PERFORMANCE 3WAY SYSTEM Capacity Control Outdoor Unit <8-Ton> U-96MF1U9, U-96MF1U9E* 208-230V/3N/60Hz Cooling capacity Heating capacity UNIT DIMENSIONS Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 96,000 (28.1) 108,000 (31.6) 82-9/16 (2097) 35 (890) Ceiling dimension : 35 (890) 672 (305) Silky shade (1Y 8.5 / 0.5) lbs.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (3) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <12-Ton> WU-144MF1U9, WU-144MF1U9E U-72MF1U9, U-72MF1U9E* U-72MF1U9, U-72MF1U9E* 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 144,000 (42.2) 162,000 (47.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (4) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <14-Ton> WU-168MF1U9, WU-168MF1U9E U-72MF1U9, U-72MF1U9E* U-96MF1U9, U-96MF1U9E* 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 168,000 (49.2) 189,000 (55.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (5) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <16-Ton> WU-192MF1U9, WU-192MF1U9E U-96MF1U9, U-96MF1U9E* U-96MF1U9, U-96MF1U9E* 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 192,000 (56.3) 216,000 (63.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (6) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <18-Ton> WU-216MF1U9, WU-216MF1U9E U-72MF1U9(E*) U-72MF1U9(E*) U-72MF1U9(E*) 208-230V/3N/60Hz 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 216,000 (63.3) 243,000 (71.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (7) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <20-Ton> WU-240MF1U9, WU-240MF1U9E U-96MF1U9(E*) U-72MF1U9(E*) U-72MF1U9(E*) 208-230V/3N/60Hz 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 240,000 (70.3) 270,000 (79.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (8) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <22-Ton> WU-264MF1U9, WU-264MF1U9E U-96MF1U9(E*) U-96MF1U9(E*) U-72MF1U9(E*) 208-230V/3N/60Hz 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 264,000 (77.4) 297,000 (87.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Unit Specifications (9) MODEL NAME GENERAL MODEL No. COMPONENT OUTDOOR UNIT SOURCE PERFORMANCE Cooling capacity Heating capacity UNIT DIMENSIONS 3WAY SYSTEM Capacity Control Outdoor Unit <24-Ton> WU-288MF1U9, WU-288MF1U9E U-96MF1U9(E*) U-96MF1U9(E*) U-96MF1U9(E*) 208-230V/3N/60Hz 208-230V/3N/60Hz 208-230V/3N/60Hz Height Width BTU / h (kW) BTU / h (kW) in. (mm) in. (mm) Depth in. (mm) Net weight Color (Munsell code) 288,000 (84.4) 324,000 (94.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 1-2. AHRI Registration Values HI Heating Capacity HI COP BTU/h 47°F BTU/h 17°F 16.4 81,000 3.50 47,000 2.28 24.0 10.9 17.1 77,500 3.31 42,000 2.25 24.7 70,500 11.2 16.8 79,000 3.41 44,500 2.27 24.4 Ducted 95,000 11.0 16.0 106,500 3.30 69,000 2.25 23.1 Non Ducted 93,000 10.9 16.7 103,000 3.31 58,500 2.25 23.5 Mixed Non-Ducted and Duced 94,000 11.0 16.4 104,500 3.31 63,500 2.25 23.3 139,000 10.8 16.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 1-3. Dimensional Data unit : in. U-72MF1U9, U-72MF1U9E, U-96MF1U9, U-96MF1U9E U-96MF1U9 U-96MF1U9E (8-Ton) 3/4" (ø19.05) 7/8" (ø22.22) Refrigerant tube (gas tube) brazed connection 5/8" (ø15.88) 3/4" (ø19.05) Refrigerant tube (discharge tube) brazed connection brazed connection 3/8" (ø9.52) 3/8" (ø9.52) Refrigerant tube (liquid tube) Air Air intake intake flared connection 3/8" (ø9.52) 3/8" (ø9.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 74 (Ceiling panel dimensions) 35 4 35 (Ceiling panel dimensions) (Ceiling panel dimensions) 1-4. Multiple Unit Installation Example 6-Ton 8-Ton 35 (Ceiling panel dimensions) 36-1/4 (Installation hole pitch) 37-1/2 (Maximum dimensions) Equivalent tonnage U-72MF1U9 U-96MF1U9 U-72MF1U9E U-96MF1U9E 12-Ton - 14-Ton 16-Ton unit: in.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit Position of center of gravity U-72MF1U9 U-72MF1U9E U-96MF1U9 U-96MF1U9E X 15-3/8 (392) 13-1/4 (336) Y 17-3/4 (452) 18-7/8 (481) Z 33-5/8 (853) 30-1/4 (767) Weight lbs (kg) 573 (260) 683 (310) 31-1/8 (Installation hole pitch) 35 (Ceiling panel dimensions) Position of center of gravity in.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 1-5. Refrigerant Flow Diagram U-72MF1U9, U-72MF1U9E LPS High pressure switch Low pressure sensor S HP Accumulator Solenoid valve Oil separator Oil drain To be brazed pinch after oil is inserted.
3WAY VRF SYSTEM Unit Specifications 1. Outdoor Unit 1-6. Noise Criterion Curves MODEL SOUND LEVEL dB(A) (Cooling/Heating) 60Hz 54.5 (Quiet mode 51.5) Standard mode MODEL SOUND LEVEL dB(A) (Cooling/Heating) U-96MF1U9, U-96MF1U9E CONDITION 3.3 ft in front at height of 4.9 ft Quiet mode 3.3 ft front at height of 4.
Test Run Contents 5. TEST RUN 1. Preparing for Test Run .......................................................................................................5-2 2. Test Run Procedure ............................................................................................................5-3 3. Main Outdoor Unit PCB Setting.........................................................................................5-4 4. Auto Address Setting .................................................................
Test Run 1. Preparing for Test Run 1. Preparing for Test Run z Before attempting to start the air conditioner, check the following. (1) The control wiring is correctly connected and all electrical connections are tight. ON (2) The transportation pads for the indoor fan have been removed. If not, remove them now. (Power must be turned ON at least 5 hours before attempting test run) (3) The power has been connected to the unit for at least 5 hours before starting the compressor.
Test Run 2. Test Run Procedure 2. Test Run Procedure Items to Check Before the Test Run Recheck the items to check before the test run. Set the unit address. *1 *1 The unit with the unit No. set to 1 is the main unit. All other units are sub units. Unit No. setting switch (S006) (Check the link wiring.) 2. Turn the outdoor service valves (4 locations) to the full-open positions. YES Unit No.
Test Run 3. Main Outdoor Unit PCB Setting 3. Main Outdoor Unit PCB Setting L Examples of the No. of indoor units settings (S005, S004) No.
Test Run 3. Main Outdoor Unit PCB Setting 1 2 3 4 CN003 5 CN101 CN100 6 7 S007 S006 S005 S004 S003 S002 8 Fig. 5-4 5-5 TD831158-00_3WAY_VRF_SYS.
Test Run 4. Auto Address Setting 4. Auto Address Setting Basic wiring diagram: Example (1) • If link wiring is not used (The inter-unit control wires are not connected to multiple refrigerant systems.) Indoor unit addresses can be set without operating the compressors. No. 1 (main outdoor unit) settings No. of indoor units (10 units setting) System address (system 1 setting) (S002) 1 (S003) ON 1 (S004) 0 ON 2 (S005) ON 1 No.
Test Run 4. Auto Address Setting Basic wiring diagram: Example (2) * When multiple outdoor main units exist, remove the socket that is used to short-circuit the terminal plug (CN003) from all outdoor main unit PCBs except for one unit. Alternatively, move the sockets to the “OPEN” side. • If link wiring is used No. 1 (main outdoor unit) settings No. of indoor units (13 units setting) System address (system 1 setting) (S002) (S004) (S003) ON ON 3 1 2 1 OFF (S005) ON 2 1 No.
Test Run 4. Auto Address Setting Case 2 Automatic Address Setting (no compressor operation) Indoor and outdoor unit power can be turned ON for each system separately. Indoor unit addresses can be set without operating the compressors. Automatic Address Setting from Outdoor Unit ON 1. (unit No. 1). On the No. 1 (main) unit control PCB, set the unit No. switch (S007) to 1 2 3 ON On the No. 2 (sub) unit control PCB, set the unit No. switch (S007) to (unit No. 2). 1 On the No.
Test Run 4. Auto Address Setting Case 3A Automatic Address Setting in Heating Mode z Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work. Automatic Address Setting from Outdoor Unit 1. Perform steps 1 - 4 in the same way as for Case 2 . 5.
Test Run 4. Auto Address Setting Case 3B Automatic Address Setting in Cooling Mode Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work. Automatic address setting can be performed during Cooling operation. Automatic Address Setting from Outdoor Unit 1.
Test Run 4. Auto Address Setting Display during automatic address setting z On outdoor main unit PCB LED 2 1 * Do not short-circuit the automatic address setting pin (CN100) again while automatic address setting is in progress. Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF. Blink alternately * When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF. * LED 1 is D72. LED 2 is D75.
4. Auto Address Setting / 5. Remote Controller Test Run Settings 6. Caution for Pump Down Test Run Request concerning recording the indoor/outdoor unit combination Nos. After automatic address setting has been completed, be sure to record them for future reference. List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location (next to the nameplate), using a permanent marking pen or similar means that cannot be abraded easily.
Test Run 7. Meaning of Alarm Messages 7. Meaning of Alarm Messages Table of Self-Diagnostics Functions and Description of Alarm Displays Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also displayed on the wired remote controller. z Viewing the LED 1 and 2 (D72 and D75) alarm displays LED 1 LED 2 Alarm display LED 1 blinks M times, then LED 2 blinks N times. The cycle then repeats.
Test Run 7. Meaning of Alarm Messages Alarm message Possible cause of malfunction Activation of protective device Protective device in indoor unit is activated. Protective device in outdoor unit is activated. 1 Thermistor fault Indoor thermistor is either open or damaged. 2 Thermal protector in indoor unit fan motor is activated. Improper wiring connections of ceiling panel. <> <> Float switch is activated.
Test Run 7. Meaning of Alarm Messages Alarm messages displayed on system controller Serial communication errors Mis-setting Activation of protective device Error in transmitting serial communication signal Indoor or main outdoor unit is not operating correctly. Mis-wiring of control wiring between indoor unit, main outdoor unit and system controller. C05 Error in receiving serial communication signal Indoor or main outdoor unit is not operating correctly.
– MEMO – 5 - 16 TD831158-00_3WAY_VRF_SYS.
Electrical Data Contents 6. ELECTRICAL DATA 1. Outdoor Unit .................................................................................................................... 6-2 (1) Electric Wiring Diagram U-72MF1U9, U-72MF1U9E ..................................................6-2 (2) Electric Wiring Diagram U-96MF1U9, U-96MF1U9E ..................................................6-4 2. Indoor Unit * Refer to the 2WAY VRF SYSTEM TECHNICAL DATA (TD831157) 1 2 3 4 5 6 7 8 6-1 TD831158-00_3WAY_VRF_SYS.
Electrical Data 1. Outdoor Unit (1) Electric Wiring Diagram U-72MF1U9, U-72MF1U9E 1 2 3 4 5 6 7 8 6-2 TD831158-00_3WAY_VRF_SYS.
Electrical Data 1. Outdoor Unit Schematic Diagram U-72MF1U9, U-72MF1U9E 1 2 3 4 5 6 7 8 6-3 TD831158-00_3WAY_VRF_SYS.
Electrical Data 1. Outdoor Unit (2) Electric Wiring Diagram U-96MF1U9, U-96MF1U9E 1 2 3 4 5 6 7 8 6-4 TD831158-00_3WAY_VRF_SYS.
Electrical Data 1. Outdoor Unit Schematic Diagram U-96MF1U9, U-96MF1U9E 1 2 3 4 5 6 7 8 6-5 TD831158-00_3WAY_VRF_SYS.
PCB and Functions Contents 7. PCB AND FUNCTIONS 1. Outdoor Unit Control PCB ............................................................................................... 7-2 1-1. Outdoor Unit Control PCB CR-CHDZ09663 ................................................................ 7-2 1-2. Outdoor Unit Filter PCB FIL-CHDX14053 ................................................................... 7-3 1-3. Outdoor Unit HIC Board HIC-CHDX14053 ..................................................................
PCB and Functions 1. Outdoor Unit Control PCB 1-1. Outdoor Unit Control PCB CR-CHDZ09663 S002 S003 S004 S005 A. ADD (CN100) pin OAC (CN105) pin MODE (CN101) pin Alarm LED (LED1, 2) AP (CN102) pin STOP (CN104) pin CHK (CN023) pin RUN (CN103) pin S006 TEST (CN022) pin Terminal plug S010 EMG (CN002) plug S007 Control circuit fuse (F003) 1 OC (CN001) plug EEPROM memory IC (IC018) Low-pressure sensor 2 3 4 RC (CN006) plug High-pressure sensor RC1 (CN106) plug Outdoor air temp. Comp.
PCB and Functions 1. Outdoor Unit Control PCB 1-2. Outdoor Unit Filter PCB FIL-CHDX14053 1 2 1-3. Outdoor Unit HIC Board HIC-CHDX14053 3 4 5 6 7 8 7-3 TD831158-00_3WAY_VRF_SYS.
PCB and Functions 1. Outdoor Unit Control PCB 1-4. Functions (for CR-CHDZ09663) Automatic address setting (CN100) 2P plug (white): Automatic address setting pin S002 Rotary switch (10 positions, black): Outdoor system address setting switch • The setting is "1" at the time of shipment. It is not necessary to change the setting if wiring is connected only to an outdoor unit and indoor units in a single system and the inter-unit control wiring does not cross multiple systems.
PCB and Functions 1. Outdoor Unit Control PCB Terminal plug 3P plug (black): For communications circuit impedance matching • A connecting socket (3P, black) is attached to the terminal plug at the time of shipment from the factory.
PCB and Functions 1. Outdoor Unit Control PCB Table 7-1.
Section 8 TENTATIVE
