Tosot TM24H5O Service Manual
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Tosot TM24H5O Service Manual

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SERVICE
MANUAL
MODELS:
TM18H5O
TM24H5O
TM36H5O
TM42H5O

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Summary of Contents for Tosot TM24H5O

  • Page 1 SERVICE MANUAL MODELS: TM18H5O TM24H5O TM36H5O TM42H5O...

  • Page 2: Table Of Contents

    Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Cooling Capacity Tables ....................6 3. Outline Dimension Diagram ..............10 4. Refrigerant System Diagram ..............11 5. Electrical Part ......................12 5.1 Wiring Diagram .......................12 5.2 PCB Printed Diagram .....................15...

  • Page 3: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Outdoor Unit TM18H5O TM24H5O TM36H5O TM42H5O Model Product Code TM18H5O CB228W09400 TM24H5O CB228W09500 TM36H5O CB228W09600 TM42H5O CB228W09700 Technical Information...

  • Page 4: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet Model TM18H5O TM24H5O Product Code CB228W09400 CB228W09500 Rated Voltage 208/230 208/230 Power Rated Frequency supply Phases Cooling capacity Btu/h 18000 22000 Heating capacity Btu/h 21000 26000 Cooling Power Input 1450 1760 Heating Power Input...
  • Page 5 Service Manual Cross-sectional Area of Power Cable Conductor sq in 0.0051 0.0051 Recommended Power Cable(Core) Connection Pipe Connection Method Flare Connection Flare Connection Not Additional Gas Connection Pipe Length 65.6 98.4 Connection Pipe Gas Additional Charge oz/ft. Outer Diameter of Liquid Pipe1(GREE Allocation) inch (Metric) Outer Diameter of Liquid Pipe2(GREE Allocation)
  • Page 6 Service Manual TM36H5O TM42H5O Model Product Code CB228W09600 CB228W09700 Rated Voltage 208/230 208/230 Power Rated Frequency supply Phases Cooling capacity Btu/h 36000 42000 Heating capacity Btu/h 36000 42000 Cooling Power Input 4020 4660 Heating Power Input 3300 3600 Cooling Current Input 17.48 20.26 Heating Current Input...
  • Page 7 Service Manual Cross-sectional Area of Power Cable Conductor sq in 0.013 0.013 Recommended Power Cable(Core) Connection Pipe Connection Method Flare Connection Flare Connection Not Additional Gas Connection Pipe Length 131.2 131.2 Connection Pipe Gas Additional Charge oz/ft. Outer Diameter of Liquid Pipe1(GREE Allocation) inch (Metric) Outer Diameter of Liquid Pipe2(GREE Allocation)

  • Page 8: Cooling Capacity Tables

    Service Manual 2.2 Cooling Capacity Tables TM18H5O Cooling Indoor Entering Air Temperatures Outdoor Ambient 68F DB 73°F DB 80°F DB Temperature (DB) 57F WB 61°FWB 67°FWB °F 0°F 11182 8769 11822 9262 13018 10214 5°F 11573 9076 12235 9586 13473 10571 14°F 12122...
  • Page 9 Service Manual TM24H5O Cooling Indoor Entering Air Temperatures Outdoor Ambient 68F DB 73°F DB 80°F DB Temperature (DB) 57F WB 61°FWB 67°FWB °F 0°F 17067 13385 18044 14137 19870 15590 5°F 17664 13852 18674 14631 20564 16135 14°F 18502 14511...
  • Page 10 Service Manual TM36H5O Cooling Indoor Entering Air Temperatures Outdoor Ambient 68F DB 73°F DB 80°F DB Temperature (DB) 57F WB 61°FWB 67°FWB °F 0°F 21827 16500 22800 18000 24000 19500 5°F 21927 17196 23181 18162 25527 20029 14°F 22968 18014 24264 19023 27384...
  • Page 11 Service Manual TM42H5O Cooling Indoor Entering Air Temperatures Outdoor Ambient Temperature (DB) 68F DB 73°F DB 80°F DB °F 57F WB 61°FWB 67°FWB 0°F 24000 19500 26000 20500 28900 22300 5°F 25582 20062 27045 21189 29782 23368 14°F 26796 21016 28308 22193 31948...

  • Page 12: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram TM18H5O TM24H5O 14 37/64 36 7/32 16 13/32 39 31/64 Unit:inch TM36H5O TM42H5O 14 1/4 17 21/64 43 7/64 Unit:inch 24 13/16 Technical Information...

  • Page 13: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram Schematic Diagram of Free Match Series Inverter Heat Pump System: 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 Variable Air injection volume...

  • Page 14: Electrical Part

    Service Manual 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 TM18H5O 60000706049101 Technical Information...
  • Page 15 Service Manual TM24H5O 600007060491 TM36H5O θ θ θ θ θ θ θ θ θ θ θ θ 60000706063001 Technical Information...
  • Page 16 Service Manual TM42H5O θ θ θ θ θ θ θ θ θ θ θ θ θ θ 600007060630 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...

  • Page 17: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram TM18H5O TM24H5O ● 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...
  • Page 18 Service Manual TM36H5O TM42H5O ● TOP VIEW 2 3 4 Compressor three phase input interface Terminal of system low pressure protection Terminal of system high pressure protection Overload interface of compressor Interface of temperature sensor 6 Air valve temperature package Liquid valve temperature package Terminal of electronic...

  • Page 19: Function And Control

    Service Manual 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 20 Service Manual 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 21: Part Ⅱ : Installation And Maintenance

    Service Manual 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 22 Service Manual 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 23: Installation Manual

    Service Manual 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 wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor...

  • Page 24: Preparation Before Installation

    Service Manual 8.1 Preparation before Installation 8.1.1 Standard parts Please use the following standard parts supplied by GREE. Pars of Outdoor Unit Remark Namber name Quantity picture Owner’s manual Tube connector 18/24/36K: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. Items need to be followed.
  • Page 25 Service Manual 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 26: Installation Instruction

    Note: The above figures are only intended to be a simple diagram of the appliance and may not correspond to the appearance of the units that have been purchased TECHNICAL DATA MODE TM36H5O TM18H5O TM24H5O TM42H5O Electrical data Electricity supply 208/230V,60HZ 208/230V,60HZ 208/230V,60HZ...
  • Page 27 TM18H5O Please install the unit in a place where is strong enough to withstand the weight of the unit; otherwise, TM24H5O Safety Precautions the unit would fall down and cause injury or death. To the power supply TM36H5O Please read this manual carefully before using and operating correctly as instructed in this manual.
  • Page 28 Service Manual Safety Precautions INSTALLING THE OUTDOOR UNIT Please read this manual carefully before using and operating TM36H5O Please especially take notice of the following two symbols: Location Use bolts to secure the unit to a flat, solid floor.When Warning! It indicates improper operation which will le mounting the unit on a wall or the roof, make sure the support Caution! It indicates improper operation which will lea is firmly secured so that it cannot move in the event of intense...
  • Page 29 Service Manual Vacuum pump BLEEDING Humid air left inside the refrigerant circuit can cause compressor (8) Secure INDOOR malfunction. After having connected the indoor and outdoor units, UNIT Refrigerant fluid di rection of fiow ay valve bleed the air and humidity from the refrigerant circuit using a ay valve vacuum pump.
  • Page 30 Service Manual TM24H5O 50cm more Space to the cover 30cm or above Space to the cover 30cm or above (Air inlet side) 200cm or above (Air outlet side) TM36H5O GWHD(42)ND3JO 50cm or more Space to the cover 30cm or above...

  • Page 31: Troubleshooting

    Service Manual 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 Compressor runs...

  • Page 32: Malfunction Checking And Elimination

    Service Manual 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 the wiring diagram...
  • Page 33 Service Manual 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 Reconnect according to...
  • Page 34 Service Manual 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 Manual of indoor unit...
  • Page 35 Service Manual 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 36 Service Manual 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 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 Installation and Maintenance...
  • Page 37 Service Manual 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 Malfunction display: F5 Failure of Exhaust Temp.

  • Page 38: Maintenance Method For Normal Malfunction

    Service Manual 9.3 Maintenance Method for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t bright wait for power recovery.
  • Page 39 Service Manual 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 firmly...

  • Page 40: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List GWHD(18)ND3JO TM24H5O 12 13 9 10 11 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 41 Service Manual Part Code Description TM24H5O GWHD(18)ND3JO 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 42 Service Manual TM36H5O 9 10 11 19 20 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 43 Service Manual Part Code Description TM36H5O Product code CB228W09600 Front Grill 016004060003 Drainage Joint 26113009 Front Side Plate Sub-Assy 017101060008P Front Side Plate Sub-Assy 017101060008 Insulated Board (Cover of Electric Box) 20113003 Cabinet 01435007P Axial Flow Fan 10335014 Brushless DC Motor 1570280000409 Motor Support Sub-Assy 017012060043...
  • Page 44 Service Manual GWHD(42)ND3JO The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 45 Service Manual Part Code Description GWHD(42)ND3JO Product code CB228W09700 Front Grill 016004060003 Drainage Joint 26113009 Front Side Plate Sub-Assy 017101060008P Front Side Plate Sub-Assy 017101060008 Insulated Board (Cover of Electric Box) 20113003 Cabinet 01435007P Axial Flow Fan 10335014 Brushless DC Motor 1570280000409 Motor Support Sub-Assy 017012060043...

  • Page 46: Removal Procedure

    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. GWHD(18)ND3JO TM24H5O Steps Procedure 1. Remove the handle and valve cover...
  • Page 47 Service Manual 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 48 Service Manual Steps Procedure 7. Remove motor and motor support motor support Remove 4 screws fixing motor,and then remove the 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 49 Service Manual Steps Procedure 10. Remove flash vaporizer assy flash vaporizer assy Unsolder all spot welds cflash vaporizer assy, and then remove the flash vaporizer assy. 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 50 Service Manual Steps Procedure 13. Remove compressor compressor Remove the 3 foot nuts fixing compressor and then lift 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...
  • Page 51 Service Manual 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 Remove the 4 foot nuts fixing compressor mounting plate sub-assy and chassis, to remove the compressor mounting plate sub-assy.
  • Page 52 Service Manual TM36H5O GWHD(42)ND3JO 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 and valve cover. valve cover 2. Remove top cover top cover Remove the screws connecting the top cover with outer case, right side plate and left side plate;...
  • Page 53 Service Manual 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 outer case, and then remove the panel grille.
  • Page 54 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, outdoor fan motor and 4-way valve.
  • Page 55 Service Manual Steps Procedure 11. Remove oil separator sub-assy oil separator sub-assy Unsolder all spot welds oil separator sub-assy and then remove the oil separator sub-assy. 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 56 Service Manual Steps Procedure 14.Remove connection pipe sub-assy Remove all spot welds connection pipe sub-assy connection pipe sub-assy then remove the connection pipe sub-assy 15.Remove electromagnetic valve sub-assy Remove all spot welds electromagnetic valve sub-assy and then remove the electromagnetic valve sub-assy electromagnetic valve sub-assy 16.
  • Page 57 Service Manual Steps Procedure 17. 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 58 Service Manual Steps Procedure 20.Remove supporting board and supporting board sub-assy supporting board Remove the screws connecting the gsupporting board and supporting board sub-assy and remove the gsupporting board and supporting board sub-assy. supporting board sub-assy 21. Remove compressor Remove the 3 foot nuts fixing compressor and then lift compressor the compressor upwards to remove the compressor and damping cushion.
  • Page 59 Service Manual Steps Procedure 23. 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 24.Remove left side plate Remove screws connecting left side plate and support plate of condenser, chassis, and then remove the left side plate.

  • Page 60: Appendix

    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 61 Service Manual 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”) 0.095 0.087...

  • Page 62: Appendix 3: List Of Resistance For Temperature Sensor

    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 3.579 1.009 16.39...
  • Page 63 Service Manual 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 4.443 1.269 137.2...
  • Page 64 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 15.17 4.08 580.6...
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