innovair MULTI-MAX Series Service Manual

Outdoor multi-condenser units

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Service Manual
Outdoor Multi-Condenser Units
Model:
WARNING
The information contained in the manual is intended for use by a qualified service technician
familiar with safety procedures and equipped with the proper tools and test instruments
Installation or repairs made by unqualified persons can result in hazards to you and others.
Failure to carefully read and follow all instructions in this manual can result in equipment
malfunction, property damage, personal injury and/or death.
This manual is only for licensed technicians only.
VOM0522H7RE602
VOM0733H7RE603
VOM0833H7RE604
VOM0836H7RE605
VOM0847H7RE605

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Summary of Contents for innovair MULTI-MAX Series

  • Page 1 Service Manual Outdoor Multi-Condenser Units VOM0522H7RE602 Model: VOM0733H7RE603 VOM0833H7RE604 VOM0836H7RE605 VOM0847H7RE605 WARNING • The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments •...
  • Page 2: Table Of Contents

    Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1 ......................3 ......................3 2.2 Cooling Capacity Tables ....................9 3. Outline Dimension Diagram ................12 4. Refrigerant System Diagram ..............14 5. Electrical Part ......................16 5.1 Wiring Diagram ........................16 5.2 PCB Printed Diagram ......................19 6.
  • Page 3: Part Ⅰ : Technical Information

    SERVICE MANUAL Technical Information Part I : Technical Information 1. Summary Outdoor Unit VOM0833H7RE604 VOM0522H7RE602 VOM0733H7RE603...
  • Page 4 SERVICE MANUAL Technical Information VOM0836H7RE605 VOM0847H7RE605 w w w . i n n o v a i r . c o m...
  • Page 5 SERVICE MANUAL Technical Information Model VOM0522H7RE602 VOM0733H7RE603 Power supply n i l y t i y t i n i l n i l ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Trademark CO.,LTD CO.LTD n i l Cooling Operation Ambient Temperature Range Heating Operation Ambient Temperature Range...
  • Page 6 SERVICE MANUAL Technical Information . t f Outer Diameter of Liquid Pipe 1 Outer Diameter of Liquid Pipe 2 Outer Diameter of Liquid Pipe 3 Outer Diameter of Liquid Pipe 4 Outer Diameter of Gas Pipe 1 Outdoor Outer Diameter of Gas Pipe 2 Unit Outer Diameter of Gas Pipe 3 Outer Diameter of Gas Pipe 4...
  • Page 7 SERVICE MANUAL Technical Information VOM0833H7RE604 Model Power supply Phases n i l y t i y t i n i l n i l SEER 21.00 HSPF 10.20 Compressor Rated Loa d Amp (RLA) — n i l Cooling Operation Ambient Temperature Range Heating Operation Ambient Temperature Range...
  • Page 8 SERVICE MANUAL Technical Information . t f Outer Diameter of Liquid Pipe 1 Outer Diameter of Liquid Pipe 2 Outer Diameter of Liquid Pipe 3 Outer Diameter of Liquid Pipe 4 Outer Diameter of Gas Pipe 1 Outdoor Outer Diameter of Gas Pipe 2 Unit Outer Diameter of Gas Pipe 3 Outer Diameter of Gas Pipe 4...
  • Page 9 SERVICE MANUAL Technical Information VOM0836H7RE605 VOM0847H7RE605 Model a t l Power supply i l o y t i i t a y t i i l o i t a i l o i t a SEER HSPF ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Trademark CO.LTD...
  • Page 10 SERVICE MANUAL Technical Information Cross-sectional Area of Power Cable Conductor sq in 0.0062 0.0062 i t c i t c i t c i t c Not Additional Gas Connection Pipe Length 131.2 131.2 i t c i t i .
  • Page 11: Cooling Capacity Tables

    SERVICE MANUAL Technical Information 2.2 Cooling Capacity Tables Cooling ROOM MODEL:18/24/30K OUTDOOR TEMPERATURE DRY CONNECTIVE INDOOR UNIT: INDOOR 9K High Wall × 2 TEMPERATURE 12K High Wall ×1 Total capacity(W) 7186 8391 9044 8474 6697 5228 Sensitive capacity(W) 6194 6818 7084 6779 6127...
  • Page 12 SERVICE MANUAL Technical Information ROOM MODEL:36K OUTDOOR TEMPERATURE DRY INDOOR CONNECTIVE INDOOR UNIT: TEMPERATURE 9K High Wall × 4 Total capacity(W) 9560 10300 10400 9430 8045 6900 Sensitive capacity(W) 8662 8880 8900 8435 7750 6800 C(70 F) D Total power input(W) 2010 2450 3120...
  • Page 13 SERVICE MANUAL Technical Information Cooling ROOM MODEL:42K OUTDOOR TEMPERATURE DRY CONNECTIVE INDOOR UNIT: INDOOR 9K High Wall × 2 TEMPERATURE 12K High Wall × 2 l a t ( y t Sensitive capacity(W) 8720 8550 8510 8600 8000 6590 C(70 F) D Total power input(W) 1980...
  • Page 14: Outline Dimension Diagram

    SERVICE MANUAL Technical Information 3. Outline Dimension Diagram VOM0833H7RE604 36 7/32 14 37/64 16 21/64 38 27/64 Unit:inch VOM0836H7RE605 , VOM0847H7RE605 14 1/4 42 1/2 17 21/64 24 13/16 Unit:inch w w w . i n n o v a i r . c o m...
  • Page 15 SERVICE MANUAL Technical Information VOM0522H7RE605, VOM0733H7RE603 14 37/64 36 7/32 16 21/64 39 9/16 Unit:inch...
  • Page 16: Refrigerant System Diagram

    SERVICE MANUAL Technical Information 4. Refrigerant System Diagram Schematic Diagram of Series Inverter Heat Pump System: VOM0522H7RE602 , VOM0733H7RE603 Electronic expansion Outdoor evaporator valve A Unloading valve 4-way valve Solenoid valve (high pressure) Solenoid valve (low pressure) Gas-liquid Flash vaporizer separator Gas-liquid separator...
  • Page 17 SERVICE MANUAL Technical Information All models except: VOM0833H7RE604 , VOM0836H7RE605, VOM0847H7RE605 Schematic Diagram of Free Match Series Inverter Heat Pump System Heat Exchanger Eutectic Stopper Filter Four-way Valve Silencer High Pressure Swicth Outdoor Uint Compressor Gas/Liquid Separator Electronic Expansion Valve Heating Cooling Indoor Uint...
  • Page 18: Electrical Part

    SERVICE MANUAL Technical Information 5. Electrical Part 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White GREEN COMP Compressor Yellow Brown Grouding wire Blue YEGN Yellow/Green Black Violet Orange ● Outdoor Unit VOM0833H7RE604 63624100019 w w w . i n n o v a i r . c o m...
  • Page 19 SERVICE MANUAL Technical Information VOM0522H7RE602 60000706049101 VOM0733H7RE603 600007060491...
  • Page 20 SERVICE MANUAL Technical Information VOM0836H7RE605 , VOM0847H7RE605 63624100020 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. w w w . i n n o v a i r . c o m...
  • Page 21: Pcb Printed Diagram

    SERVICE MANUAL Technical Information 5.2 PCB Printed Diagram All models except: VOM0833H7RE604 , VOM0836H7RE605, VOM0847H7RE605 ● TOP VIEW T25AH 250V: Fuse N: terminals of neureal wire AC-L: terminals of line wire PFC electrocircuit U/V/W: terminals of compressor OVC-COMP: terminals of overload protector HPP: terminals of high pressure switch...
  • Page 22 SERVICE MANUAL Technical Information VOM0522H7RE602, VOM0733H7RE603 ● TOP VIEW 2 3 4 5 6 10 11 12 13 Compressor three phase input interface Terminal of system low pressure protection Terminal of system high pressure protection Overload interface of compressor Interface of Inhalation temperature package Interface of temperature sensor...
  • Page 23: Function And Control

    SERVICE MANUAL Technical Information 6. Function and Control 1.Function Control 1) Cooling mode a. Turning on the unit for cooling operation, and if any one of the indoor units satisfy the cooling operation condition, the system will start for cooling operation; and the electronic expansion valve, the outdoor fan and the compressor start operation. b.
  • Page 24 SERVICE MANUAL Technical Information 3) High exhaust temperature protection If the exhaust temperature is higher than protection value, the compressor stops running. If the exhaust temperature protection continuously appears for 6 times, the compressor can’t resume running. In this case, only by cutting off the power and then reenergize that the compressor can restart.
  • Page 25: Part Ⅱ : Installation And Maintenance

    SERVICE MANUAL Installation and Maintenance Part II : Installation and Maintenance 7. Safety Precautions Forbidden Items! It indicates that improper operation might lead to human casualty or sever injury. Items need to be followed. It indicates that improper operation might lead to personal injury or property damage. Installation should be conducted by Follow this instruction to complete the dealer or qualified personnel.
  • Page 26 SERVICE MANUAL Installation and Maintenance Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
  • Page 27: Installation Manual

    SERVICE MANUAL Installation and Maintenance 8. Installation Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes...
  • Page 28: Preparation Before Installation

    SERVICE MANUAL Installation and Maintenance 8.1 Preparation before Installation 8.1.1 Standard parts Please use the following standard parts supplied by INNOVAIR . Pars of Outdoor Unit Remark Quantity Namber name picture Owner’s manual Tube connector 18/24/30/36K:8;42K:9 subassy 8.1.2 Selecting installation site Forbidden Items! It indicates that improper operation might lead to human casualty or sever injury.
  • Page 29 SERVICE MANUAL Installation and Maintenance When the outdoor unit is totally surrounded by walls, the installation space of the unit should be as required in Fig.1. >39 3/8 > 19 2/3 >78 3/4 > 19 2/3 >78 3/4 unit:inch Fig.1 8.1.3 Piping Connection The maximum pipe length is shown in the following table.
  • Page 30: Installation Instruction

    SERVICE MANUAL Installation and Maintenance 8.2 Installation Instruction 8.2.1 Outline and dimension of the outdoor unit VOM0522H7RE602 , VOM0733H7RE603 NAME OF PARTS WARNING ● person in order to avoid a hazard. ● Be sure to cut off the power supply before cleaning the air conditioner; otherwise electricshock might happen. ●...
  • Page 31 SERVICE MANUAL Installation and Maintenance ELECTRICAL CONNECTIONS VOM0522H7RE602 1. Remove the handle at the right side plate of the outdoor unit (one screw). 2. Remove the cable clamp, connect the power connection cable with the terminal at the row of connection and fix the connection. terminal of line bank.Wiring should meet that of indoor unit.
  • Page 32 SERVICE MANUAL Installation and Maintenance Safety Precautions INSTALLING THE OUTDOOR UNIT (4) Operate the vacuum pump for 10-15 minutes until an absolute Please read this manual carefully before using and operating correctly as instructed in this manual. vacuum of 10 mm Hg has been reached. Please especially take notice of the following two symbols: Location (5) With the vacuum pump still in operation, close the low-pressure...
  • Page 33 SERVICE MANUAL Installation and Maintenance Safety Precautions MAINTENANCE Safety Precautions Please read this manual carefully before Please read this manual carefully before using and operating correctly as instructed in this manual. using and operating correctly as instructed Warning! It indicates improper operation which will lead to human casualty or severe injury. Please especially take notice of the following two symbols: Use suitable instruments for the refrigerant R410A.
  • Page 34 SERVICE MANUAL Installation and Maintenance VOM0833H7RE604 Outline dimension and Mounting holes 38 27/64 6 7/64 Fig.2 VOM0836H7RE605 , VOM0847H7RE605 Outline dimension and Mounting holes 42 1/2 7 1/2 24 53/64 Fig.3 w w w . i n n o v a i r . c o m...
  • Page 35 SERVICE MANUAL Installation and Maintenance 8.2.2 Installation of the Connection Pipe Connecting piping for indoor unit and outdoor unit are in manifold mode. (As shown below). Fig.4 1) Piping between the Indoor and Outdoor Units ● If the liquid and gas stop valves which have the sign of A , B, C, D or E have not been connected to the indoor units, please turn off the screw cap with the spanner airproof.
  • Page 36 SERVICE MANUAL Installation and Maintenance 2) Allowable pipe length and drop height among indoor and outdoor units If the total refrigerant pipe length (liquid pipe) is smaller than that listed in the table below, no additional refrigerant will be charged. Model VOM0833H7RE604 VOM083 6H7RE60...
  • Page 37 SERVICE MANUAL Installation and Maintenance 3) Installation of the Protection Layer of the Refrigerant Pipe a. The refrigerant pipe should be insulated by the insulating material and plastic tape in order to prevent condensation and water leakage. b. The joints of the indoor unit should be wrapped with the insulating material and no gap is allowed on the joint of the indoor unit, as shown in Fig.9.
  • Page 38 SERVICE MANUAL Installation and Maintenance indoor unit and the refrigerant pipe. b. The amount of the additional refrigerant charge is dependent on the diameter and length of the liquid refrigerant pipe which is decided by the actual yield installation requirement. c.
  • Page 39 SERVICE MANUAL Installation and Maintenance 2) Earthing Requirements otherwise it would cause the hazard of electric shock. ● The reliable earth terminal should be provided and the earth wire can not be connected to any of the following places. ① Running water pipe; ② Coal gas pipe; ③ Sewage pipe; ④ Other places where the professional personnel think unreliable. 3) Electrical Cable Connection Cautions! ①...
  • Page 40: Troubleshooting

    SERVICE MANUAL Installation and Maintenance 9. Troubleshooting 9.1 Malfunction Indicator ▲ The error code will be displayed on the wired controller and the main board of the outdoor unit The meaning of each error. The indicator display Indoor display Name of malfunction Yellow light Red light Green light...
  • Page 41: Malfunction Checking And Elimination

    SERVICE MANUAL Installation and Maintenance 9.2 Malfunction Checking and Elimination Malfunction display: E6 Communication malfunction Communication malfunction of some indoor units De-energize,check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Connected correctly Eliminate the malfunction...
  • Page 42 SERVICE MANUAL Installation and Maintenance All the indoor units appear communication malfunction De-energize,check the connection wire of indoor and outdoor unit and the wire of the eletric box is connected correctly Reconnect according to Eliminate the malfunction Connected correctly? the wiring diagram De-energize, check if the connection wire between the outdoor mainboard and the filter board according to the wiring diagram...
  • Page 43 SERVICE MANUAL Installation and Maintenance Malfunction display: E1 Compressor High Pressure Protection High pressure protection Replace the outdoor Check if the pressure is really high pressure with the Check if pressure switch unit mainboard is abnormal measurement of a manometer Replace pressure switch Refer to Instruction Check if operation mode of indoor unit is...
  • Page 44 SERVICE MANUAL Installation and Maintenance Malfunction display: E4 Compressor Exhaust High Temperature Protection Discharge temperature protection Measure if temperature sensor’s Measure if compressor’s discharge Replace relevant discharge resistance value is correct temperature has reached 115℃ temperature sensor System pipeline leaks so complementation is needed. Replace the outdoor Please add refrigerant according to the amount unit mainboard...
  • Page 45 SERVICE MANUAL Installation and Maintenance Malfunction display: F2 Failure of Evaporator Temp. Sensor Failure of condenser Temp sensor Check the direction of the plug and Check if the plug of the temperature sensor is correctly connected with socket on the mainboard socket Remove the sensor to check if the resistance value is ok Replace temperature sensor...
  • Page 46 SERVICE MANUAL Installation and Maintenance Malfunction display: F3 Failure of Outdoor Ambient Sensor Failure of outdoor Ambient sensor Check the direction of the plug Check if the plug of the temperature sensor is correctly and socket connected with socket on the mainboard Remove the sensor to check if the resistance value is ok Replace temperature sensor Replace mainboard of the indoor uint...
  • Page 47: Maintenance Method For Normal Malfunction

    SERVICE MANUAL Installation and Maintenance 9.3 Maintenance Method for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery. If not, check power connection for power plug and the buzzer can't give out sound supply circuit and make sure the power plug is...
  • Page 48 SERVICE MANUAL Installation and Maintenance 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram Measure the capacity of fan capacitor with an...
  • Page 49: Exploded View And Parts List

    Installation and Maintenance SERVICE MANUAL 10. Exploded View and Parts List VOM0833H7RE604 The component picture is only for reference; please refer to the actual product.
  • Page 50 SERVICE MANUAL Installation and Maintenance Description Notes Part Model Coping 01255006P Left Handle 26235401 Left Side Plate 01305043P Fan Motor 15702802 Axial Flow Fan 10335014 Cabinet 0143500401P Front Grill 01473050 Front Side Plate 01305086P Electrical Heater 765100047 Chassis Sub-assy 01284100112P Compressor 00205200003 Electric Heater(Compressor)
  • Page 51 Installation and Maintenance SERVICE MANUAL VOM0836H7RE605 , VOM0847H7RE605 17 18 19 20 21 22 23 24 25 8 9 10 11 12 13 14 15 16 The component picture is only for reference; please refer to the actual product.
  • Page 52 SERVICE MANUAL Installation and Maintenance Description VOM0836H7RE605 VOM0847H7RE605 Product code Front Grill 01574106 01574106 Handle Assy 02204100008 02204100008 Front Side Plate Sub-Assy 01305508 01305508 Front Side Plate 01305065P 01305065P Insulated Board (Cover of Electric Box) 20113003 20113003 Cabinet 01435007P 01435007P Axial Flow Fan 10335010 10335010...
  • Page 53 Installation and Maintenance SERVICE MANUAL VOM0522H7RE602 , VOM0733H7RE603 9 10 11 12 13 The component picture is only for reference; please refer to the actual product.
  • Page 54 SERVICE MANUAL Installation and Maintenance Part Code Description VOM0522H7RE602 VOM0733H7RE603 Product code CB228W09400 CB228W09500 Front Grill 016004000006 016004000006 Cabinet 0143543901P 0143543901P Front Side Plate Sub-Assy 017101060007 017101060007 Electrical Heater (Chassis) 7651000413 7651000413 Base Plate Sub-Assy 017000060044P 017000060044P Electromagnetic Valve Sub-assy 030025060020 030025060020 Compressor and Fittings...
  • Page 55: Removal Procedure

    Installation and Maintenance SERVICE MANUAL 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Note:Take VOM0833H7RE604 Steps Procedure 1. Remove the handle Remove the screws connicting the handle with right side plate and then remove the handle.
  • Page 56 SERVICE MANUAL Installation and Maintenance Steps Procedure 4.Remove rear guard grille rear guard grille Remove the 6 screws connecting the grille with right side plate and left side plate, and then remove the rear guard grille. 5.Remove right side plate right side plate Remove the screws connecting the right side plate with electric box assy, valve support, chassis and...
  • Page 57 SERVICE MANUAL Installation and Maintenance Steps Procedure 7. Remove outer case Remove screws connecting outer case and motor support, middle isolation sheet and chassis, pull the outer case upwards slightly, loosen clasps between outer case and right side plate, left side plate, and then remove the outer case.
  • Page 58 SERVICE MANUAL Installation and Maintenance Steps Procedure 10 Remove 4-way valve 4-way valve Unsolder the spot weld between 4-way valve and vapour liquid separator, compressor cut-off valve sub-assy and condenser, and then remove the 4-way valve. Note: When unsoldering the spot weld, wrap the 4-way valve with wet cloth completely to avoid damage to valve due to high temperature.
  • Page 59 Installation and Maintenance SERVICE MANUAL Steps Procedure 13. Remove compressor compressor the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. 14. Remove the reactor support, and then remove the reactor sub-assy. reactor 1 5.
  • Page 60 SERVICE MANUAL Installation and Maintenance Steps Procedure 16.Remove left side plate support plate of condenser Remove screws connecting left side plate and support plate of condenser, chassis, and then remove the left side plate. left side plate condenser 17. Remove condenser Remove 5 screws connecting condenser and chassis, and then remove the condenser.
  • Page 61 Installation and Maintenance SERVICE MANUAL VOM0522H7RE602 , VOM0733H7RE603 Steps Procedure 1. Remove the handle and valve cover handle Remove the screws connicting the handle with right side plate and then remove the handle. Remove the screws connicting the valve cover and then remove the valve cover.
  • Page 62 SERVICE MANUAL Installation and Maintenance Steps Procedure 4.Remove grille and cabinet cabinet Remove the 4 screws connecting the grille and outer case, and then remove the panel grille. grille 5.Remove right side plate and blade right side plate Remove the screws connecting the right side plate with electric box assy, valve support, chassis and condenser side plate, and then remove the right side plate.
  • Page 63 Installation and Maintenance SERVICE MANUAL Steps Procedure 7. Remove motor and motor support motor support motor; Remove 2 screws connecting motor support and chassis, loosen damper block and then remove the motor motor support. 8. Remove clapboard sub-assy clapboard sub-assy Remove 4 screws fixing clapboard sub-assy,and then remove the clapboard sub-assy.
  • Page 64 SERVICE MANUAL Installation and Maintenance Steps Procedure Unsolder all spot welds cflash vaporizer assy, and 11. Remove electromagnetic valve sub-assy and inhalation tube sub-assy electromagnetic valve sub-assy Unsolder all spot welds electromagnetic valve sub- assy and then remove the electromagnetic valve sub- assy.
  • Page 65 Installation and Maintenance SERVICE MANUAL Steps Procedure 13. Remove compressor compressor the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. 14.Remove vapour liquid separator Unsolder spot welds connected with vapour liquid separator, remove 2 foot nuts fixing vapour liquid vapour liquid separator and compressor mounting plate sub-assy, and...
  • Page 66 SERVICE MANUAL Installation and Maintenance Steps Procedure 16.Remove left side plate support plate of condenser Remove screws connecting left side plate and support plate of condenser, chassis, and then remove the left side plate. left side plate 17.Remove compressor mounting plate sub-assy plate sub-assy and chassis, to remove the compressor mounting plate sub-assy.
  • Page 67 Installation and Maintenance SERVICE MANUAL VOM0836H7RE605 , VOM0847H7RE605 Steps Procedure 1. Remove the handle Remove the screws connicting the handle with right side plate and then remove the handle. handle 2. Remove top cover top cover Remove the screws connecting the top cover with outer case, right side plate and left side plate;...
  • Page 68 SERVICE MANUAL Installation and Maintenance Steps Procedure 5.Remove right side plate right side plate Remove the screws connecting the right side plate with electric box assy, valve support, chassis and condenser side plate, and then remove the right side plate. 6.Remove grille and cabinet cabinet Remove the 4 screws connecting the grille and...
  • Page 69 Installation and Maintenance SERVICE MANUAL Steps Procedure 8. Remove electric box assy electric box assy 1.Remove the grounding wire screw on the electric box assy and then remove the grounding wire. 2.Disconnect the wiring terminals of reactor, compressor, high and low pressure switch, compressor overload protector, temperature sensor, Note: keep pressing the circlip when disconnecting the wiring terminal of reactor;...
  • Page 70 SERVICE MANUAL Installation and Maintenance Steps Procedure 11. Remove valve support valve support Unsolder all spot welds connected with valve support and then remove the valve support. Note:When unsoldering the spot weld, wrap the gas valve and liquid valve with wet cloth completely to avoid damage to valve due to high temperature.
  • Page 71 Installation and Maintenance SERVICE MANUAL Steps Procedure 14.Remove vapour liquid separator Unsolder spot welds connected with vapour liquid separator, remove 2 foot nuts fixing vapour liquid vapour liquid separator separator and compressor mounting plate sub-assy, and then remove the vapour liquid separator. 15.Remove compressor mounting plate sub-assy Remove the 4 foot nuts fixing compressor mounting plate sub-assy and chassis, to remove the compressor...
  • Page 72 SERVICE MANUAL Installation and Maintenance Steps Procedure 17. Remove middle isolation sheet middle isolation sheet Remove screws connecting middle isolation sheet and support plate of condenser, chassis, and then remove the middle isolation sheet. support plate of condenser 18.Remove left side plate Remove screws connecting left side plate and support plate of condenser, chassis, and then remove the left side plate.
  • Page 73: Appendix

    Installation and Maintenance SERVICE MANUAL Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius (℃) Celsius (℃) Celsius (℃) temperature temperature temperature...
  • Page 74 SERVICE MANUAL Installation and Maintenance Hard mold Note: Expander ● "A" is different according to the diameter, please refer to the sheet below: A(inch) Outer Pipe diameter(inch) Ф0.23 - 0.25 (1/4") 0.051 0.028 Ф9.52 (3/8”) 0.063 0.039 Ф0.37 - 0.5 (1/2”) 0.071 0.039 Ф0.63 (5/8”)
  • Page 75: Appendix 3: List Of Resistance For Temperature Sensor

    Installation and Maintenance SERVICE MANUAL Appendix 3: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14...
  • Page 76 SERVICE MANUAL Installation and Maintenance Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9...
  • Page 77 Installation and Maintenance SERVICE MANUAL Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35...
  • Page 78 The design and speci cations are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.

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