Tosot TUHD18ND3F1O Service Manual
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Tosot TUHD18ND3F1O Service Manual

Dc inverter u-match air conditioners
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DC INVERTER U-MATCH AIR
CONDITIONERS
(GC201908- Ⅱ )
Capacity:5~14kW (17100~48000Btu/h)
Rate Frequency: 60Hz
Operation Range: -18.0℃(0℉) ~ 46.1℃ (115.0℉)

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Summary of Contents for Tosot TUHD18ND3F1O

  • Page 1 DC INVERTER U-MATCH AIR CONDITIONERS (GC201908- Ⅱ ) Capacity:5~14kW (17100~48000Btu/h) Rate Frequency: 60Hz Operation Range: -18.0℃(0℉) ~ 46.1℃ (115.0℉)

  • Page 2: Table Of Contents

    CONTENTS PRODUCT ........................... 1 1 MODELS LIST ........................2 1.1 Outdoor Unit .......................... 2 1.2 Indoor Unit ..........................3 2 NOMENCLATURE ......................4 2.1 Outdoor Unit .......................... 4 2.2 Intdoor Unit ..........................4 3 PRODUCT DATA ......................6 3.1 Product Data of Indoor Unit ....................6 3.2 Operation Range .........................
  • Page 3 6 TROUBLESHOOTING ....................33 6.1 Display of Error Code ......................33 7 CENTRALIZED CONTROLLER ..................34 7.1 Smart Zone Controller ......................34 7.2 Additional Special Functions ....................37 INSTALLATION ........................50 1 INDOOR UNIT INSTALLATION ..................51 1.1 Installation of Duct Type ....................... 51 1.2 Installation of Air Handler .....................

  • Page 4: Product

    TOSOT DC INVERTER U-MATCH AIR PRODUCT...

  • Page 5: Models List

    TOSOT DC INVERTER U-MATCH AIR 1 MODELS LIST 1.1 Outdoor Unit Power Supply Model Name Appearance (V/ Ph/ Hz) TUHD18ND3F1O 208/230V ~60Hz TUHD24ND3F1O 208/230V ~60Hz TUHD30ND3F1O 208/230V ~60Hz TUHD36ND3F1O 208/230V ~60Hz TUHD42ND3F1O 208/230V ~60Hz TUHD48ND3F1O 208/230V ~60Hz...

  • Page 6: Indoor Unit

    TOSOT DC INVERTER U-MATCH AIR 1.2 Indoor Unit Nominal Power Capacity Type Model Name Supply Appearance Cooling/Heating (V/ Ph/ Hz) (Btu/h) TFH18D3F2I 17100/19100 208/230V ~60Hz TFH18D3F3I TFH24D3F2I 23800/27200 208/230V ~60Hz TFH24D3F3I TFH30D3F2I 29000/31200 208/230V ~60Hz TFH30D3F3I Duct TFH36D3F2I 34000/41000 208/230V ~60Hz...

  • Page 7: Nomenclature

    TOSOT DC INVERTER U-MATCH AIR 2 NOMENCLATURE 2.1 Outdoor Unit Description Options TOSOT. Capital Letter :T Unit Type U=U-Match Outdoor Unit C=Cool Only Product Type H=Heat Pump without Aux Electric Heaters N=Constant Frequency Compressor Power Supply D=DC Inverter Type Code...
  • Page 8 TOSOT DC INVERTER U-MATCH AIR Description Options Product code TOSOT U-match Motor type Omit =AC motor; D=DC motor Cooling capacity code Nominal capacity (kBTU) Unit type Air Handler Named in order of A, B, C, or combined with 1, 2, 3…...

  • Page 9: Product Data

    Indoor unit TFH18D3F2I TFH18D3F3I TFH24D3F2I TFH24D3F3I Product Code CF022N0980 CF022N0950 CF022N0970 CF022N0940 Model Outdoor unit TUHD18ND3F1O TUHD18ND3F1O TUHD24ND3F1O TUHD24ND3F1O CF090W1040 CF090W1040 CF090W1060 CF090W1060 Product Code Cooling Capacity 5.00（1.60-5.80） 5.00（1.60-5.80） 7.00（2.40-8.50） 7.00（2.40-8.50） Capacity Heating Capacity 5.60（1.40-6.80） 5.60（1.40-6.80） 8.00（2.40-9.50） 8.00（2.40-9.50） Cooling 1.55（0.55-1.80） 1.55（0.55-1.80） 2.30（0.85-2.50） 2.30（0.85-2.50）...
  • Page 10 TOSOT DC INVERTER U-MATCH AIR Indoor unit TFH30D3F2I TFH30D3F3I TFH36D3F2I TFH36D3F3I Product Code CF022N1010 CF022N1000 CF022N0920 CF022N0930 Model Outdoor unit TUHD30ND3F1O TUHD30ND3F1O TUHD36ND3F1O TUHD36ND3F1O CF090W1050 CF090W1050 CF090W1030 CF090W1030 Product Code 8.50(2.40-8.70) 10.00 （4.60-12.50） 10.00 （4.60-12.50） Cooling Capacity 8.50(2.40-8.70) Capacity 9.20(2.40-9.90) 12.00 （4.30-14.70） 12.00 （4.30-14.70）...
  • Page 11 TOSOT DC INVERTER U-MATCH AIR Indoor unit TFH42D3F2I TFH42D3F3I TFH48D3F2I TFH48D3F3I Product Code CF022N0910 CF022N0900 CF022N0960 CF022N0990 Model Outdoor unit TUHD42ND3F1O TUHD42ND3F1O TUHD48ND3F1O TUHD48ND3F1O CF090W1020 CF090W1020 CF090W1070 CF090W1070 Product Code Cooling Capacity 12.00(3.60-12.50) 12.00(3.60-12.50) 14.00(3.90-14.60) 14.00(3.90-14.60) Capacity Heating Capacity 13.80(3.90-15.50) 13.80(3.90-15.50) 15.00(3.80-17.00) 15.00(3.80-17.00) Cooling 4.00(0.65-4.65)
  • Page 12 TOSOT DC INVERTER U-MATCH AIR Air Handler Indoor unit TUD36A/B-D(U) TUD48A/B-D(U) Product Code EH010N0010 EH010N0020 Model Outdoor unit TUHD36ND3F1O TUHD48ND3F1O CF090W1030 CF090W1070 Product Code Cooling Capacity 10.00(4.60-12.50) 14.00(3.90-14.60) Capacity Heating Capacity 12.00(4.30-14.70) 15.00(3.80-17.00) Cooling 3.40(0.90-4.00) 5.35(1.20-5.70) Power Input Heating 3.50(0.80-3.80) 5.00(1.10-5.50)

  • Page 13: Operation Range

    Table 1-4-1 Electrical Data of Outdoor Unit Minimum Compressor Fan Motor Fuse/Breaker Circuit Capacity Model Power Supply Qty. Ampacity — V/Ph/Hz TUHD18ND3F1O 208V/230V ~ 60Hz 11.0 5/25 15.3 TUHD24ND3F1O 208V/230V ~ 60Hz 17.5 5/35 23.4 TUHD30ND3F1O 208V/230V ~ 60Hz 17.5 5/35 23.4...
  • Page 14 TOSOT DC INVERTER U-MATCH AIR 3.3.2 Indoor unit Table 1-4-2 Electrical Data of Indoor Unit Duct Type Capability of Air Minimum Circuit Maximum Overcurrent Power Supply Switch Ampacity Protection Model (V, Ph,Hz) TFH18D3F2I 208/230,1,60 TFH18D3F3I TFH24D3F2I 208/230,1,60 TFH24D3F3I TFH30D3F2I 208/230,1,60...

  • Page 15: Piping Diagram

    TOSOT DC INVERTER U-MATCH AIR 4 PIPING DIAGRAM Fi lter Fil ter Heat exchanger with Liquid Stop Valve Liqui d Stop Valve axial flow fan with Service Port Heat exchanger Gas Stop Valve Gas Stop Valve with Service Port Mu f fl e...

  • Page 16: Control

    TOSOT DC INVERTER U-MATCH AIR CONTROL...

  • Page 17: Operation Flowchart

    TOSOT DC INVERTER U-MATCH AIR 1 OPERATION FLOWCHART 1.1 Cooling/Dry Operation Power Open unit running at cool or dry mode Indoor fan run Satisfying open Comp. condition Comp. and outdoor fan run Temp of indoor ≤Set temp Comp. and outdoor fan stop Comp.

  • Page 18: Heating Operation

    TOSOT DC INVERTER U-MATCH AIR 1.2 Heating Operation Power Open unit running at heat mode Satisfying open comp. condition Comp. and outdoor fan run Avoid cool wind (only when comp. start) Temp of indoor ≥Set temp Comp. and outdoor fan stop Comp.

  • Page 19: Wireless Remote Controller

    TOSOT DC INVERTER U-MATCH AIR 2 WIRELESS REMOTE CONTROLLER 2.1 Operation and Display View Table 2-2-1 Operation instruction of wireless remote controller Name Function Description Signal  Signal transmitter. transmitter  Press this button and the unit will be turned on; press it once more, and the unit will be turned off. When...
  • Page 20 TOSOT DC INVERTER U-MATCH AIR Name Function Description  By pressing this button, Auto, Low, Middle, High speed can be circularly selected. After power on, Auto fan speed is default.  Low speed button Middle speed High speed NOTE: Under the DRY mode, the fan will be kept running at the low speed and the fan speed isn't adjustable.

  • Page 21: Wired Controller

    TOSOT DC INVERTER U-MATCH AIR Name Function Description  In the Cool or Heat mode, pressing this button can activate or deactivate the TURBO function. When the TURBO TURBO function is activated, its symbol will be displayed; when the running mode or the fan speed is button changed, this function will be canceled automatically.(This function is applicable to partial of models).
  • Page 22 TOSOT DC INVERTER U-MATCH AIR Icons Introduction Left and right swing function Up and down swing function Air exchange function Sleep function Auto mode COOL mode DRY mode FAN mode HEAT mode Health function I-Demand function Vacation function Status display of master and slave wired controller Shield function The button operation, temperature setting, "On/Off"...

  • Page 23: Operation View

    TOSOT DC INVERTER U-MATCH AIR 3.2 Operation View 3.2.1 Silk Screen of Buttons Figure 2-3-3 Silk screen of buttons 3.3.2 Instruction to Function of Buttons Table 2-3-2 Instruction to buttons of wired controller Description Functions (1) Function selection and canceling;...
  • Page 24 TOSOT DC INVERTER U-MATCH AIR Description Functions Upon startup of the unit without malfunction or under off state of the unit, 2 ▲ press ▲ and ▼ buttons at the same time for 5s to enter lock state. In this Lock case, any other buttons won’t respond when pressing.
  • Page 25 TOSOT DC INVERTER U-MATCH AIR Figure 2-3-4 Enquiry and setting of wired controller’s address 3.2.3.2 Setting of Master/Slave Wired Controller’s Address Under off status of the unit, press Enter/Cancel and Mode buttons at the same time for 5s to go to the enquiry and setting interface of master/slave wired controller.

  • Page 26: Operation Instruction Of Special Functions

    TOSOT DC INVERTER U-MATCH AIR Figure 2-3-5 Enquiry and setting of master/slave wired controller’s address 4 OPERATION INSTRUCTION OF SPECIAL FUNCTIONS 4.1 Setting of Filter Clean Reminder Function When unit is on, press Function button to switch to filter clean reminder function. The icon will blink and then enter setting of filter clean reminder function.
  • Page 27 TOSOT DC INVERTER U-MATCH AIR Setting of filter clean reminder function is shown as Figure 2-4-1 below: Figure 2-4-1 Setting of filter clean reminder function When setting the filter clean reminder function, timer zone will display 2 digits, of which the former indicates the pollution degree of operating place and the latter indicates the accumulated operating time of indoor unit.

  • Page 28: Low Temperature Drying Function

    TOSOT DC INVERTER U-MATCH AIR accumulated operating time is 1400hr. Each time the latter digit increases 1, the accumulated operating time increases 400hr. When it reaches 9, it means the accumulated operating time is 5000hr. (4) Heavy pollution: the former digit in timer zone shows 3 while the latter one shows 0, which indicates the accumulated operating time is 100hr.

  • Page 29: Memory Function

    TOSOT DC INVERTER U-MATCH AIR be memorized after power failure and then power recovery. 4.4 Memory Function Press Mode and ▲ buttons at the same time for 5s under off state of the unit to turn on or cancel memory function. If memory function is set, is displayed.

  • Page 30: Enquiry Of Historical Malfunction

    TOSOT DC INVERTER U-MATCH AIR ambient temperature after compensation. Press Mode button to switch between 01 and 02. Pressing other buttons except Mode button or receiving remote control signal will exit enquiry state. If there is no operation within 20s will also exit enquiry state.
  • Page 31 TOSOT DC INVERTER U-MATCH AIR zone displays setting state and press ▲ or ▼ button to adjust. There are 2 selections: (1) Displayed (LCD displays 01). (2) Not displayed (LCD displays 02). It is defaulted to be not displayed for export unit and be displayed for domestic unit.
  • Page 32 TOSOT DC INVERTER U-MATCH AIR 4.9.8 Selecting Door Control Function Under debugging state, press Mode button to adjust to “08” in temperature displaying zone. Timer zone displays setting state and press ▲ or ▼ button to adjust. There are 2 selections: (1) Without door control function (LCD displays 00).
  • Page 33 TOSOT DC INVERTER U-MATCH AIR 4.9.12 Selecting Compensation of Temperature Sensor at Air Return Under debugging state, press Mode button to adjust to “12” in temperature displaying zone. Timer zone displays setting state and press ▲ or ▼ button to adjust. There are 16 selections: (1) Compensate 0℃(32℉) (LCD displays 00)

  • Page 34: Installation Of Wired Controller

    TOSOT DC INVERTER U-MATCH AIR 5 INSTALLATION OF WIRED CONTROLLER 5.1 Standard Accessories Table 2-5-1 Standard Accessories of Wired Controller Description Quantity Note Socket base box installed in the wall No.1 in Figure 2-5-1 Base plate of wired controller No.2 in Figure 2-5-1 Screw M4×25...

  • Page 35: Removal Of Wired Controller

    TOSOT DC INVERTER U-MATCH AIR length<50m(164ft) and the recommended length is 8m(26-1/4ft)). Make sure the power of indoor unit is cut off; fix the signal wire of wired controller on the wiring board for wired controller of indoor unit with screws; make sure the signal wire is solid.

  • Page 36: Troubleshooting

    TOSOT DC INVERTER U-MATCH AIR 6 TROUBLESHOOTING 6.1 Display of Error Code Table 2-6-1 Error Code List Error Code Error Compressor high pressure protection Freeze protection Compressor low pressure protection, refrigerant lacking protection, refrigerant recycling mode Compressor high discharge temperature protection...

  • Page 37: Centralized Controller

    TOSOT DC INVERTER U-MATCH AIR For example, E1 means high pressure protection during operation. Figure 2-6-1 7 CENTRALIZED CONTROLLER 7.1 Smart Zone Controller 7.1.1 Function The smart zone controller can directly control up to 16 sets of indoor units in a control network and is available to check the running status of any unit through the LCD, including running mode, timer, fan speed, centralized control and shielding setting etc.
  • Page 38 TOSOT DC INVERTER U-MATCH AIR 7.1.3 Functions of Press Buttons Table 2-7-1 Functions of Press Buttons Name Function Description Mode It is used for the switchover among different modes. It is used to set the fan speed, high, medium, low or auto.
  • Page 39 TOSOT DC INVERTER U-MATCH AIR 7.1.4.2 Introduction to Symbols on the LCD Figure 2-7-3 Table 2-7-2 Introduction to the Symbols on the LCD Name Description Fan speed It displays the fan speed of the indoor unit, high, medium, low and auto.

  • Page 40: Additional Special Functions

    TOSOT DC INVERTER U-MATCH AIR 7.1.4.4 Dimensions Figure 2-7-5 7.2 Additional Special Functions 7.2.1 Door Control Function Door control function is available for this series. In order to achieve this function, please select the door control accessories from Gree. Interface instructions: (1) The interface printing is DOOR-C and the type is B2B-XH-B.
  • Page 41 TOSOT DC INVERTER U-MATCH AIR Table 2-7-3 Door control wiring port Terminal name Terminal instruction CN1 wiring terminal and door control interface of indoor mainboard X1(AC-L, AC-N) wiring terminal, connected to door control input signal, rated X1(AC-L, AC-N) voltage 220V...
  • Page 42 TOSOT DC INVERTER U-MATCH AIR Figure 2-7-7 NOTE: You can purchase the accessory from Gree. The information is as below: Name Product code Remark Controller for door control function MC207022 One controller for one unit (MK03) 7.2.2 Human Sensitive Function You can purchase the module of human sensitive function for this series.
  • Page 43 TOSOT DC INVERTER U-MATCH AIR Function instructions: In order to achieve this function, set it through wired controller and refer to the following operation method. It is defaulted that this function is not activated; if this function is set and human sensitive module is connected, the unit will control the ON/OFF of unit according to the signal detected by human sensitive module.
  • Page 44 TOSOT DC INVERTER U-MATCH AIR notes: (1) There is the needle stand interface on the mainboard. The interface model inserted into this needle stand must be PH-3P-K. (2) The current consumption of module can not exceed the current capacity provided by this interface.
  • Page 45 TOSOT DC INVERTER U-MATCH AIR 3. Setting method: (1) Firstly, set the address mode of wired controller into centralized controller address mode. The setting method is: Under off state of the unit, press Function and Timer buttons at the same time for 5s to go to the debugging menu.
  • Page 46 TOSOT DC INVERTER U-MATCH AIR Figure 2-7-11 4. NOTE: (1) In order to realize the MODBUS interface function, the address mode of the unit must be set into long-distance control address mode; you can not set it into centralized control address mode, otherwise, this function can not be realized.
  • Page 47 TOSOT DC INVERTER U-MATCH AIR 3. Setting method: Firstly, set the address mode of wired controller into centralized controller address mode. The setting method is: (1) Under off state of the unit, press Function and Timer buttons at the same time for 5s to go to the debugging menu.
  • Page 48 TOSOT DC INVERTER U-MATCH AIR Figure 2-7-13 When the address is set, the wired controller can be removed and connect the centralized controller to the indoor mainboard. Then connect the required units to realize centralized control of these units. NOTE: (1) When centralized controller is to be connected, set the address mode into centralized controller address mode through wired controller.
  • Page 49 TOSOT DC INVERTER U-MATCH AIR Cooling: set temperature 26℃(79℉), low fan speed; heating: set temperature 20℃(68℉), low fan speed. Function instructions: under OFF state, pressing Cool/Heat button can turn on cooling/heating mode. Under unit ON state, pressing Cool/Heat button can turn off the unit. When the unit is in cooling/heating mode, pressing any button can turn off the unit.
  • Page 50 TOSOT DC INVERTER U-MATCH AIR Figure 2-7-15 Malfunction output 3. Setting method: Do not need to set this function. 4. NOTES: (1) The interface voltage should be 220V AC intense current. (2) If malfunction light is connected, please make sure its power is not too big (it should be within 10W),...
  • Page 51 TOSOT DC INVERTER U-MATCH AIR 7.2.7 Reserved Fresh Air Valve Interface for Duct Type Unit For the reserved connection way of air valve performer, connect it to F,C,O of wiring board according to the wiring diagram. Connect the public port of air valve to F, connect CLOSE to C and connect OPEN to O.
  • Page 52 TOSOT DC INVERTER U-MATCH AIR 7.2.9 Chassis Electric Heating Belt of Outdoor Unit is Optional When outdoor ambient temperature is very low, electric heating belt can be equipped on the chassis to prevent freezing of the chassis. Figure 2-7-18...

  • Page 53: Installation

    TOSOT DC INVERTER U-MATCH AIR INSTALLATION...

  • Page 54: Indoor Unit Installation

    TOSOT DC INVERTER U-MATCH AIR 1 INDOOR UNIT INSTALLATION 1.1 Installation of Duct Type 1.1.1 Before Installation After receiving the machine, please check for any transport damage. If finding any surface or internal damage, please immediately report to the transport company or equipment company in writing.
  • Page 55 TOSOT DC INVERTER U-MATCH AIR Air-conditioning Unit Ceiling-mount Screw Hanger Figure 3-1-1 Figure 3-1-2 Screw Hook Figure 3-1-3 Install the hanger onto the indoor unit as Figure 3-1-2 and Figure 3-1-3 shows. Install the indoor unit at the ceiling as Figure Figure 3-1-4 shows.
  • Page 56 TOSOT DC INVERTER U-MATCH AIR Level Instrument Condensate Air Intake Air Supply Drainpipes As the inside of the unit is in the negative Enlarged View pressure status, it is required to set up a Condensate Drainpipe backwater elbow. The requirements is: A=B≥(0.145P/10000+20)/25.4(inch)
  • Page 57 TOSOT DC INVERTER U-MATCH AIR For the units: 36~48k Figure 3-1-7 Table 3-1-1 Unit: mm (inch) Item Model TFH18D3F2I 1100 1160 1280 1000 TFH18D3F3I (43-3/8) (20-3/8) (32-1/4) (45-5/8) (50-3/8) (22) (39-1/2) (6-1/4) (9-1/4) (10-1/2) TFH24D3F2I TFH24D3F3I 1010 1115 1225 (39-3/4)
  • Page 58 TOSOT DC INVERTER U-MATCH AIR 1.1.6 Drain Piping Work Installation of Drainage Pipeline: CAUTION! Install the drain hose in accordance with the instructions in this installation manual and keep the area warm enough to prevent condensation. Problems with the piping may lead to water leaks.
  • Page 59 TOSOT DC INVERTER U-MATCH AIR Condensate Drainpipe As the inside of the unit is in the negative pressure status, it is required to set up a backwater elbow. The Enlarged View requirements is: A=B≥(0.145P/10000+20)/25.4(inch) Condensate Drainpipe P is the absolute pressure inside the unit.
  • Page 60 TOSOT DC INVERTER U-MATCH AIR (8) Considerations for the unit with the condensate pump: 1) For the unit with the condensate pump, only one drain port at the side close to the electric box is prepared and only through it the drain hose can be connected.
  • Page 61 TOSOT DC INVERTER U-MATCH AIR 1.1.7 Installation of Air Duct Dimensions of the Supply Air Outlet/Return Air Inlet. 21mm(7/8inch) Figure 3-1-18 Supply Air Outlet Figure 3-1-19 Return Air Inlet Table 3-1-3 Unit: mm (inch) Supply Air Outlet Return Air Inlet...
  • Page 62 TOSOT DC INVERTER U-MATCH AIR Figure 3-1-20 CAUTION! ① The maximum length of the duct means the maximum length of the supply air duct plus the maximum length of the return air duct. ② The duct is rectangular and connected with the air inlet/outlet of the indoor unit. Among all supply air outlets, at least one should be kept open.

  • Page 63: Installation Of Air Handler

    TOSOT DC INVERTER U-MATCH AIR Name Name Return Air Inlet (with filter) Indoor unit Canvas Duct Supply Air Duct Return Air Duct Grille Installation of Air Handler 1.2.1 Dimension Data ① Install the indoor unit in a location which can withstand a load of at least five times the weight of the main unit and which will not amplify sound or vibration.

  • Page 64: Outdoor Unit Installation

    TOSOT DC INVERTER U-MATCH AIR 1.2.2 Installation of Air Handler Diagram of installation location and space for indoor unit (Notice: This air handler is designed for indoor installation only. Do not install it outdoors). Figure 3-1-24 This air handler is designed for a complete supply and return ductwork system. Do not operate this product without all ductwork attached.

  • Page 65: Installation Site

    TOSOT DC INVERTER U-MATCH AIR 2.2 Installation Site ① Install the unit where it will not be tilted by more than 5° . ② During installation, if the outdoor unit has to be exposed to strong wind, it must be fixed securely.

  • Page 66: Dimension Data

    The installing dimension shall comply with the installation requirements in these instructions. The outdoor unit must be fixed at the installing position. The installation shall be done by specialist technicians. 2.4 Dimension Data Figure 3-2-2 Table 3-2-1 Unit: mm (inch) Item Model TUHD18ND3F1O 955(37-5/8) 395(15-5/8) 700(27-1/2) 560(22) 360(14-1/8) TUHD24ND3F1O 980(38-5/8) 425(16-3/4)

  • Page 67: Refrigeration Piping Work

    TOSOT DC INVERTER U-MATCH AIR 3 REFRIGERATION PIPING WORK 3.1 Refrigeration Piping Work Procedures and Caution in Connecting 3.1.1 Flare Processing (1) Cut the connection pipe with the pipe cutter and remove the burrs. (2) Hold the pipe downward to prevent cuttings from entering the pipe.
  • Page 68 TOSOT DC INVERTER U-MATCH AIR 3.1.3 Connecting the Pipe at the Indoor Unit Side Detach the caps and plugs from the pipes. CAUTION ① Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is improper, the flare nut cannot be tightened smoothly.
  • Page 69 TOSOT DC INVERTER U-MATCH AIR 3.1.4 Connecting the Pipe at the Outdoor Side Unit Tighten the flare nut of the connection pipe at the outdoor unit valve connector. The tightening method is the same as that as at the indoor side.
  • Page 70 TOSOT DC INVERTER U-MATCH AIR (4) Open the switch at the lower pressure side of the manifold valve assembly and start the vacuum pump. Meanwhile, the switch at the high pressure side of the manifold valve assembly should be kept closed, otherwise evacuation would fail.

  • Page 71: Specification Of Connection Pipe

    Length between Indoor Model × m (feet) Unit and Outdoor Liquid wall thickness) Unit: m (feet) mm (inch) Φ20×1.2 TFH18D3F2I (Φ0.79×0.05) Φ6 (1/4) Φ12(1/2) TUHD18ND3F1O 50(164.0) 15(49.2) Φ26×3 TFH18D3F3I (Φ1.02×0.12) Φ20×1.2 TFH24D3F2I (Φ0.79×0.05) Φ9.52(3/8) Φ16(5/8) TUHD24ND3F1O 50(164.0) 15(49.2) Φ26×3 TFH24D3F3I (Φ1.02×0.12)

  • Page 72: Electric Wiring Work

    TOSOT DC INVERTER U-MATCH AIR 4 ELECTRIC WIRING WORK 4.1 Wiring Precautions WARNING ① Before obtaining access to terminals, all supply circuits must be disconnected. ② The rated voltage of the unit is as shown as Table 1-4-1 and Table 1-4-2.
  • Page 73 TOSOT DC INVERTER U-MATCH AIR Figure 3-2-6 Figure 3-2-7 Figure 3-2-8 (3) How to fix connection cord and power cord by cord clamp After passing the connection cord and power cord through the insulation tube, fasten it with the cord clamp.
  • Page 74 TOSOT DC INVERTER U-MATCH AIR Single-phase units (36k-48k) Figure 3-2-9 (5) Electric wiring of indoor unit side Remove the electric box cover from the electric box sub-assy and then connect the wire. Figure 3-2-10 The F, C, O connect to the COMMOM, CLOSE and OPEN terminal of the fresh air valve respectively.
  • Page 75 TOSOT DC INVERTER U-MATCH AIR (6) Electric wiring of outdoor unit side NOTICE! When connecting the power supply cord, make sure that the phase of the power supply matches with the exact terminal board. If not, the compressor will rotate reversely and run improperly.

  • Page 76: Maintenance

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE...

  • Page 77: Trouble Table

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 1 TROUBLE TABLE 1.1 Main Control Malfunction Table 1 Fault Display on Indoor Wired Controller Origin of Error Malfunction malfunction Control description code name signal When outdoor unit detects the high pressure switch is cut off for 3s successively, high pressure protection will occur.
  • Page 78 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Origin of Error Malfunction malfunction Control description code name signal If the indoor evaporator temperature sensor is detected of open circuit or short circuit for 5s successively, evaporator Malfunction of Evaporator temperature sensor malfunction will be reported. The unit can...

  • Page 79: Description Of Drive Malfunction

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Origin of Error Malfunction malfunction Control description code name signal After the compressor starts operation in heating mode, if the outdoor unit detects the difference between evaporator temperature and indoor ambient temperature is lower than the...

  • Page 80: Flow Chart Of Troubleshooting

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 2 FLOW CHART OF TROUBLESHOOTING 2.1 Troubleshooting Flow Chart of Main Control Malfunction  E1 High Pressure Protection protection Reconnect wire according to the circuit diagram Check if the system high Check if the wiring...
  • Page 81 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  E2 Freeze Protection Freeze protection is normal protection but not abnormal malfunction. If freeze protection occurs frequently during operation, please check if the indoor filter is with filth blockage or if the indoor air outlet is abnormal.
  • Page 82 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  E4 Discharge Protection E4 protection Replace the discharge temperature sensor Check if the discharge Check if the temperature around discharge Replace the outdoor compressor discharge temperature sensor main control board temperature sensor is normal exceeds 115℃...
  • Page 83 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  E9 Full Water Protection E9 protection Short circuit the full water If the unit is protection interface on indoor installed with mainboard according to the circuit water pump diagram Check if the water pump...
  • Page 84 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  F1 Malfunction of Evaporator Temperature Sensor Malfunction of evaporator temperature sensor Check if the evaporator Correctly insert the temperature sensor on temperature mainboard is inserted on the sensor on the needle stand correctly...
  • Page 85 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  F3 Malfunction of Outdoor Ambient Temperature Sensor Malfunction of outdoor ambient temperature sensor Check Correctly insert the if the outdoor ambient temperature sensor on temperature sensor on mainboard the needle stand is inserted on the needle stand...
  • Page 86 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  F5 Malfunction of Wired Controller Temperature Sensor Malfunction of wired controller temperature sensor Replace the wired controller  H6 Malfunction of Outdoor Fan Motor Malfunction of discharge temperature sensor Check if the Correctly connect the...

  • Page 87: Troubleshooting Flow Chart Of Drive Malfunction

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  E8 Malfunction of Indoor Fan Motor Malfunction of indoor fan motor Check if the Correctly connect the control wire of indoor fan motor is control wire of fan motor connected on the outdoor...
  • Page 88 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS P8 is displayed on the wired controller P8 is displayed in the mainboard 88 Indicating lamp Is the IPM or PFC module of mainboard tightened？ Replace the Tighten the IPM mainboard or PFC module Work normally ...
  • Page 89 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  P6 Drive-to-main-control communication error  Lc Compressor Startup Failure Lc is displayed on the wired controller Lc is displayed in the mainboard 88 indicating lamp Replace the mainboard. Does it work normally? Replace the...
  • Page 90 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  PU Charging circuit error PU is displayed on the wired controller PU is displayed in the mainboard 88 indicating lamp Is the PFC wire tightened or is the sequence right? Tighten the PFC...
  • Page 91 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS  H6 DC fan error H6 is displayed on the wired controller H6 is displayed in the mainboard 88 indicating lamp Is the motor phase Adjust the motor sequence right? phase sequence Is the Fan wire terminal Tighten the fan loose？...

  • Page 92: Interface

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 2.3 Interface TUHD18ND3F1O / TUHD24ND3F1O / TUHD30ND3F1O / TUHD36ND3F1O / TUHD42ND3F1O， TUHD48ND3F1O Main Control Board No. SILK-SCREEN INTERFACE INTERFACE INSTRUCTION AC-L Live wire input Live wire input AC-N Neutral wire input Neutral wire input...
  • Page 93 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS No. SILK-SCREEN INTERFACE INTERFACE INSTRUCTION Power supply interface to the drive Control power output[1-GND、 1-pin: GND 2-18V、3-15V] 2-pin: +18V 3-pin: +15V Communication needle stand of main control drive Communication line [1-3.3V、2-TX、 1-pin: +3.3V， 2-pin: TXD COMM1 3-RX、4-GND]...
  • Page 94 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUHD18ND3F1O / TUHD24ND3F1O / TUHD30ND3F1O (1) Driving Board Printing Interface Printing Interface L2_2 PFC induction wire (blue) L1_1 PFC induction wire (brown) Neutral wire input (white) AC-L Live wire input (red) COMM/COMM1 Communication interface...
  • Page 95 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS (2) Filtering Board Printing Interface Printing Interface Neutral wire output 1 (white) (only for N-OUT1 N-OUT Neutral wire output (white) 18K) L-OUT Live wire output (red) Grounding wire (Reserved) AC-L Live wire input (red) —...
  • Page 96 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Printing Interface Printing Interface DC bus electric discharging needle COMM Communication interface DC-BUS1 stand (for testing) DC bus interface (connect to filtering DC-BUS Compressor Phase U board) Compressor Phase V Compressor Phase W (2) Filtering Board:...

  • Page 97: Wiring Diadram

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 3 WIRING DIADRAM 3.1 Outdoor Unit The actual wiring should always refer to the wiring diagram of the unit. Model: TUHD36ND3F1O...

  • Page 98: Indoor Unit

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TUHD42ND3F1O 3.2 Indoor Unit The actual wiring should always refer to the wiring diagram of the unit. 3.2.1 Duct Type Model: TFH18D3F2I / TFH18D3F3I / TFH24D3F2I / TFH24D3F3I / TFH30D3F2I / TFH30D3F3I...
  • Page 99 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TFH36D3F2I / TFH36D3F3I / TFH42D3F2I / TFH42D3F3I / TFH48D3F2I / TFH48D3F3I TUD36A/B-D(U) / TUD48A/B-D(U) Model:...

  • Page 100: Disassembly And Assembly Procedure Of Main Parts

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 4.1 Outdoor Unit Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1..Remove the top cover and handle. 1. Remove external casing 2. Remove the grille, outer case and right side plate.
  • Page 101 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 24/30k Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1..Remove the top cover and handle. 1. Remove external casing 2. Remove the grille, outer case, front side plate and right side plate.
  • Page 102 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1. Remove the top cover and handle. 1. Remove external casing 2. Remove the grille, outer case and right side plate. 1..Remove the blade nut and then 2.
  • Page 103 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 42/48k Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction 1..Remove the top cover and handle. 1. Remove external casing 2..Remove the grille, outer case and right side plate. 1. Remove the blade nut and then remove the blade;...

  • Page 104: Indoor Unit

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Disassembly and Assembly of external casing Remark : Step Illustration Handling Instruction Assemble the unit in the reverse 5. Assemble unit procedures of disassembly. 4.2 Indoor Unit 4.2.1 Duct Type Removal and Assembly of Fan Motor Remarks: Before removing the fan, make sure to cut off the power firstly.
  • Page 105 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Removal and Assembly of Fan Motor Remarks: Before removing the fan, make sure to cut off the power firstly. Step Illustration Handling Instruction Use inner hexagonal spanner to 5..Loosen loosen the screws on fan and motor.
  • Page 106 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Disassembly of water-containing plate Remark: Make sure that the power supply is cut off before disassembling and protect all the parts during disassembly. Step Illustration Handling Instruction Disassemble the fastening screws on the cover plate and remove the cover plate.
  • Page 107 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Disassembly of evaporator Remark: Make sure that the power supply is cut off and protect the copper tube and aluminum fin. If the time for disassembly shall be long, put the copper tube under pressurized condition.
  • Page 108 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Air Handler type Indoor Unit Motor and fan Precondition: The power supply has been disconnected. Procedures Diagrams Operating Instructions Loosen screws round the upper panel 1..Remove the with a screwdriver. upper panel. Remove the upper panel from unit.

  • Page 109: Exploded Views And Spare Part List

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 5 EXPLODED VIEWS AND SPARE PART LIST 5.1 Outdoor Unit Model: THD18ND3F1O Exploded Views and spare parts list: THD18ND3F1O Name of Part Product Code CF090W1040 Part Code Quantity Front Grill 01473049 Front Panel 01535013P...
  • Page 110 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS THD18ND3F1O Name of Part Product Code CF090W1040 Part Code Quantity Cut off Valve Sub-Assy 07335200016 Pressure Protect Switch 46020003 Valve Support Assy 01715010P Right Side Plate 0130509403P Silencer 07245007 Handle Assy 02113109 Strainer 07212403...
  • Page 111 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TUHD24ND3F1O Exploded Views and spare parts list: TUHD24ND3F1O Name of Part Product Code CF090W1060 Part Code Quantity Front Grill 01473050 Cabinet 01435004P Left Handle 26235401 Front Side Plate 01305086P Axial Flow Fan 10335014...
  • Page 112 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUHD24ND3F1O Name of Part Product Code CF090W1060 Part Code Quantity Pressure Protect Switch 4602000902 Right Side Plate Sub-Assy 01315200069P Handle Assy 02113109 Temperature Sensor 3900028020G Rear Grill 01475013 Clapboard Sub-Assy 01245200010 Strainer 07225088 PFC Inductance...
  • Page 113 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TUHD30ND3F1O Exploded Views and spare parts list: TUHD30ND3F1O Name of Part Product Code CF090W1050 Part Code Quantity Front Grill 01473050 Cabinet 01435004P Left Handle 26235401 Front Side Plate 01305086P Axial Flow Fan 10335014...
  • Page 114 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUHD30ND3F1O Name of Part Product Code CF090W1050 Part Code Quantity Silencer 07245012 Pressure Protect Switch 4602000902 Pressure Protect Switch 46020003 Valve Support Sub-Assy 0171501201P Right Side Plate Sub-Assy 01315200069P Cut off Valve 071302391 Handle Assy...
  • Page 115 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TUHD36ND3F1O Exploded Views and spare parts list TUHD36ND3F1O Name of Part Product Code CF090W1030 Part Code Quantity Front Grill 01574106 Cabinet 01435007P Handle 26235253 Front Side Plate Sub-Assy 01305508 Axial Flow Fan 10335010...
  • Page 116 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUHD36ND3F1O Name of Part Product Code CF090W1030 Part Code Quantity Strainer 07213032 Strainer 07210045 Electronic Expansion Valve 07334194 Pressure Protect Switch 46020003 Pressure Protect Switch 4602000902 Valve Support Sub-Assy 01805200222P Silencer 07245012 Strainer 07215201...
  • Page 117 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TUHD42ND3F1O /TUHD48ND3F1O Exploded Views and spare parts list: TUHD42ND3F1O /TUHD48ND3F1O Name of Part Product Code CF090W1020/CF090W1070 Part Code Quantity Front Grill 01574100009 Diversion Circle 10474100001 Cabinet Assy 01514100006 Handle 26235253 Front Side Plate...

  • Page 118: Indoor Unit

    TOSOT DC INVERTER U-MATCH AIR CONDITIONERS 5.2 Indoor Unit Duct Type Model: TUH18D3F2I-1 exploded view and spare parts list TUH18D3F2I-1 Name of Part Product Code CF022N0980 Part Code Quantity Blower 15012454 Blower Mounting Plate Sub-Assy 01325200039 Support Sub-assy 01805200164 Supporter...
  • Page 119 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUH18D3F2I-1 Name of Part Product Code CF022N0980 Part Code Quantity Main Board 30224000030 Electric Box Assy 01395200453 Terminal Board 42010194 Terminal Board 4201025301 Right Side Plate Sub-Assy 01315200057 Model: TFH18D3F3I (with water pump) exploded view and spare parts list...
  • Page 120 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH18D3F3I Name of Part Product Code CF022N0950 Part Code Quantity Electric Box Assy 01395200453 Right Side Plate Sub-Assy 01315200057 Water Pump Assy 15405392 Centrifugal fan assy 15405200029 Blower 15012458 Brushless DC Motor 15705200006 Supporter...
  • Page 121 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TFH24D3F2I/TFH30D3F2I exploded view and spare parts list TFH24D3F2I/TFH30D3F2I Product Code CF022N0970/ CF022N1010 Name of Part Part Code Quantity Filter Sub-Assy '111253031 Choke Plug of Drain Pipe '76712455 Water Tray Assy '01285323 Lower Cover Plate Sub-Assy...
  • Page 122 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH24D3F2I/TFH30D3F2I Product Code CF022N0970/ CF022N1010 Name of Part Part Code Quantity Centrifugal Fan '10424100001 Hook '02112466 Top Cover Board Assy '01265200086 Evaporator Assy '01025200120 Side Plate of Air intake '01375301 Supporting Board of evaporator...
  • Page 123 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH24D3F3I-1/TFH30D3F3I-1 Product Code CF022N0940/ CF022N1000 Name of Part Part Code Quantity Strainer '07415210 Propeller Housing(Lower) '26904100052 Right Side Plate Sub-Assy '01315200155 Electric Box Assy '01395200470 Terminal Board '42011149 Filter Board '30226000065 Terminal Board '42010194...
  • Page 124 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TFH36D3F2I-1 exploded view and spare parts list TFH36D3F2I-1 Product Code CF022N0920 Name of Part Part Code Quantity Display Board '30294000007 Ambient Temperature Sensor '3900012123 Tube sensor '3900012128 Hook '02205209 Left Side Plate Sub-Assy...
  • Page 125 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH36D3F2I-1 Product Code CF022N0920 Name of Part Part Code Quantity Reactor '43138000047 Terminal Board '4201025301 Main Board '30221000018 Radiator '49018000068 Main Board '30224000063 Bottom Cover Plate Assy '01265200081 Above data is subject to change without notice, pls reference the SP in global service website.
  • Page 126 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH36D3F3I Product Code CF022N0930 Name of Part Part Code Quantity Water Tray Assy '01285200025 Choke Plug of Drain Pipe '76712455 Right Side Plate Assy '01315200161 Electric Box Assy '01395200458 Water Pump '4313822001 Water Level Switch...
  • Page 127 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Model: TFH42D3F2I-1/TFH48D3F2I-1 exploded view and spare parts list TFH42D3F2I/TFH48D3F2I CF022N0910/ Name of Part Product Code CF022N0960 Part Code Quantity Display Board 30294000007 Tube sensor 3900012128 Ambient Temperature Sensor 3900012123 Left Side Plate Sub-Assy 01315200064...
  • Page 128 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH42D3F2I/TFH48D3F2I CF022N0910/ Name of Part Product Code CF022N0960 Part Code Quantity Evaporator Assy 01025200055 Filter Sub-Assy 111253036 Terminal Board 42010194 Terminal Board 4201025301 Radiator 49018000068 Main Board 30221000011 Main Board 30224000039 Bottom Cover Plate Assy 01265200081 Above data is subject to change without notice, pls reference the SP in global service website.
  • Page 129 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TFH42D3F3I/TFH48D3F3I CF022N0900/ Name of Part Product Code CF022N0990 Part Code Quantity Water Pump Assy 15405200081 Water Pump 4313822001 Pump Drainpipe 05235301 Water Level Switch 4501270301 Top Cover Board Assy 01265200045 Water Tray Assy 01285200025...
  • Page 130 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS Air Handler TUD36A/B-D(U) TUD36A/B-D(U) Name of Part Product Code EH010N0010 Part Code Quantity Top Cover Plate Sub-Assy 01262200013 Transformer 43110286 Main Board 300002060985 Main Board 300002060314 Terminal Board 42011103 Terminal Board 42011147 Terminal Board...
  • Page 131 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUD36A/B-D(U) Name of Part Product Code EH010N0010 Part Code Quantity Motor for Centrifugal Fan 000052000072 Brushless DC Motor 1570220201 Water Tray 2690220501 Top Cover Board Sub-Assy 01262200019 Bottom Cover Plate Assy 1 01264100069 Lower Cover Plate Sub-Assy 2...
  • Page 132 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUD48A/B-D(U) TUD48A/B-D(U) Name of Part Product Code EH010N0020 Part Code Quantity Top Cover Plate Sub-Assy 01262200028 Transformer 43110286 100003060813 Electric Cabinet Assy Filter Sub-Assy 111001000086 0132220001401 Blower Mounting Plate 000052000073 Centrifugal Fan Assy 1570220301...
  • Page 133 TOSOT DC INVERTER U-MATCH AIR CONDITIONERS TUD48A/B-D(U) Name of Part Product Code EH010N0020 Part Code Quantity 11722202 Filter Sub-Assy 2690220501 Water Tray Right Side Plate Sub-Assy 01312200026 01312200028 Rear Side Plate Sub-Assy 300001000204 Display Board 390001923 Temperature Sensor Temperature Sensor...
  • Page 134 JF00302978...

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