DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP WYT-22 Inverter Series For 9,000-24,000 BTU/hr Systems Service Manual CS78421-548-754 IMPORTANT NOTICE: Please read this manual carefully before installing or operating your new air conditioning system. Be sure to save this manual for future reference.
Air Conditioner Service Manual Models WT009ALFI22HLD / YN009ALFI22RPD WT012ALFI22HLD / YN012ALFI22RPD WT009GLFI22HLD / YN009GLFI22RPD WT012GLFI22HLD / YN012GLFI22RPD WT018GLFI22HLD / YN018GLFI22RPD WT024GLFI22HLD / YN024GLFI22RPD
Air Conditioner Service Manual Content PART Ⅰ TECHNICAL INFORMATION ..................................................................................................................................... 3 1. IMPORTANT NOTICE ..................................................................................................................................................................... 3 2. SPECIFICATIONS .....................................................................................................
Air Conditioner Service Manual Part Ⅰ Technical Information 1. Important Notice This service manual is intended for use by individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair the appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
Air Conditioner Service Manual 2. Specifications 2.1 Specifications table Model 9K(115v) 12k(115V) 9k(230V) 12K(230V) 18K 24K cooling&heati ng remote cooling&heati ng remote cooling&heati ng remote 115V~/60Hz/ 1P cooling&heati ng remote 208230V~/60Hz/ 1P cooling&heati ng remote 115V~/60Hz/ 1P cooling&heati ng remote 208230V~/60Hz/ 1P 230V~/60Hz/ 1P 230V~/60Hz/ 1P 9000 12000 9000 12000 18000 23000 12.5 12.5 13 13 13 12.
Air Conditioner Service Manual 2.2 The relation curve of CAPACITY-TEMPERATURE 9K 12K 18K 24K 2.3 The relation curve of PRESSURE-TEMPERATURE 9K Rated Cooling 12K 18K 24K f(Hz) HP(MPa) LP(MPa) f(Hz) HP(MPa) LP(MPa) f(Hz) HP(MPa) LP(MPa) f(Hz) HP(MPa) LP(MPa) 49 2.84 0.93 61 2.96 0.92 68 2.90 0.85 82 3.02 0.88 Note: The test under condition: Rated Cooling: IDU dry bulb27℃/ Wet bulb 19℃, ODU dry bult35℃/ wet bulb 24℃;The connection pipes: 5m.
Air Conditioner Service Manual 3. Electric Diagram 3.
Air Conditioner Service Manual Indoor unit : WT012GLFI22HLD, WT018GLFI22HLD Outdoor unit: YN012ALFI22RPD 7
Air Conditioner Service Manual Outdoor unit: YN012ALFI22RPD Outdoor unit: YN009GLFI22RPD, YN012GLFI22RPD, YN018GLFI22RPD 8
Air Conditioner Service Manual Outdoor unit: YN024GLFI22RPD 9
Air Conditioner Service Manual 3.
Air Conditioner Service Manual Outdoor unit 9K, 12K 9 8 6 7 5 4 1 ODU PCB Mainly relay 2 Fuse 3 L, N & 1 4 4-way valve 5 Heater 6 DC fan motor connector 3 7 Electronic expansion valve 2 8 Discharge sensor connector/ OAT/OPT connector 9 LED5 1 18K 1 2 3 4 5 6 7 8 9 1 LED5 2 Discharge sensor connector/ OAT/OPT connector 3 Electronic expansion valve 4 AC/DC fan motor connector 5 4-way valve 6 Heater 7 Communication wiring 8 L line 9 Fuse 10 N line 11 ODU
Air Conditioner Service Manual 24K 1 LED5 2 OAT/OPT connector 3 4 5 Discharge sensor connector Electronic expansion valve AC/DC fan motor connector 6 Heater 7 4-way valve 8 Communication wiring 9 L line 10 Fuse 11 N line 12 ODU PCB Mainly relay 13 LED1-LED4 Note: OAT: Outdoor Ambient Temperature OPT: Outdoor pipe temperature 4.
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Air Conditioner Service Manual 4.2 Electronic controller RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT---Outdoor Pipe Temperature. OAT---Outdoor Ambient Temperature. ODT---Outdoor Discharge Temperature. CRT---Compensated Room Temperature. IDU--- Indoor unit ODU---Outdoor unit.
Air Conditioner Service Manual delay for the motor should be less than 160s. 2). When switch on unit on cooling mode, ODU fan motor will delay 5s after compressor starts up. 4. When ODU failure or stops for protection, IDU works as preset. 5. Anti-frosting protection Control the unit operation frequency and the frequency changing rate to achieve anti-frosting protection. 1). Frequency Slowly Increasing(FSI): a. If 6℃≤IPT＜7℃, the frequency increasing rate is 1Hz/60s, slowly increasing operation speed. b.
Air Conditioner Service Manual The compressor stops operation. 3). The compressor frequency control: Based on relation of RT & ST, and the changing speed of RT. 4). The compressor will also stop working while unit: a. switched off. b. under protection. c. changed to fan mode. 5). Under normal operation, the compressor can be stopped by program only working after 7 min once it starts up. 6). In the process of unit operation, once the compressor ceased, it should be 3 min delay for the next procedure. 4.2.4.
Air Conditioner Service Manual a. After defrosting 60s, and OAT≥12℃(53.6℉); or b. OAT＜－5℃(-41℉), and OPT ≥8℃(46.4℉) for 80s continuously; or c. The defrosting for 10 min. When AC meet any of condition a, b or c, defrosting finish. COMPRESSOR 50S 50S 4-way VALVE 43S OUTDOOR FAN 48S 43s Defrosting max time ON OFF 3) Defrosting end off: Compressor stops working, and re-starts to working after 50s delay; 4.2.4.7.
Air Conditioner Service Manual 4.2.5 Fan mode 1. The temperature setting: 16~31℃, Fan speed and vane position: as preset. The function for remote controller 58E only. 2. For above function, when unit preset to be auto fan mode, the fan motor will change its operation speed based on the temperature difference of ambient and preset temperature. 3. ODU always OFF. ℃ δt comes down 4 δt goes up High fan 4℃ 2 Mid fan 0 2℃ Low fan 4.2.
Air Conditioner Service Manual Note: The function setting: Within 3 min while power on unit, set the unit on cooling mode, set temperature 30℃, and mid fan speed, press the ECO button 10 times within 8s, the AUTO-RESTART will be activated. 4.2.10 Protection 4.2.10.1 Overload protection 1. Overload protection for Cooling or Dry mode 1). if: a. OPT≥62℃, unit stops working for overload protection. b. OPT＜55℃, after compressor stopped for 3 min, can the unit be started to operate. 2).
Air Conditioner Service Manual compressor stops for 3 min can the unit be recovered operation. 3. If unit have 6 times of over current stop-working protection continuously, this protection can’t be recovered unless press ON/OFF button. In the process of unit operation, once the compressor runs continuously more than 6 min, the counter of stopworking protection will be reset to zero and re-start a new counting process. Note: For different models, ILC and ISC have different programmed value. 4.2.10.
Air Conditioner Service Manual PART Ⅱ Installation and Maintenance 1. Notes for installation and maintenance Safety Precautions Important! Please read the safety of precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions bellow. ● The installation or maintenance must accord with the instructions. ● Comply with all national electrical codes and local electrical codes.
Air Conditioner Service Manual 6) Make sure no foreign objects are left in the unit after finishing installation. Improper installation may lead to fire hazard, explosion, electric shock or injury. Safety precautions for Installing and Relocating the unit. To ensure safety, please be mindful of the following precautions. Warnings 1) When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant.
Air Conditioner Service Manual Introduction R32, R290 air conditioner installation 1) Introduction to Refrigerants R32 & R290 The refrigerants used for air conditioners are environmentally friendly hydrocarbons R32 and R290. The two kinds of refrigerants are combustible and odorless. Moreover, they can burn and explode under certain condition.
Air Conditioner Service Manual Caution: Please contact the nearest after-sale service center when maintenance is necessary. At the time of maintenance, the maintenance personnel must strictly comply with the Operation Manual provided by the corresponding manufacturer and any non-professional is prohibited to maintain the air conditioner. It is necessary to comply with the provisions of gas-related national laws and regulations.
Air Conditioner Service Manual It is necessary to choose the place where the inlet and outlet air of the indoor unit is even. It is necessary to avoid the places where there are other electrical products, power switch plugs and sockets, kitchen cabinet, bed, sofa and other valuables right under the lines on two sides of the indoor unit.
Air Conditioner Service Manual of the refrigerant leak detector should not exceed 25% of the lower explosion limit (LEL), the refrigerant leak detector must be working during maintenance. 2) Inspection of air conditioner It is necessary to ensure that the air conditioner is in reliable ground connection before maintenance. Make sure powered supply to air conditioner is off. Before maintenance, it is necessary to cut off the power and discharge the capacitor power which used in the air conditioner.
Air Conditioner Service Manual It is necessary to provide firefighting devices such as dry powder or carbon dioxide fire extinguisher appropriate for extinguishing the electrical fire and keep such firefighting devices in a usable condition. Temporary wires and sockets are prohibited on the maintenance location. 6).
Air Conditioner Service Manual precautionary measures in work. For example, it is prohibited to enter the location with any kindling material and it is prohibited to wear clothing or shoes which easily produce static. Handling suggestions when a large amount of combustible refrigerant leaks: It is necessary to immediately operate the ventilating equipment while cutting off other power supply and evacuating the affected personnel urgently from the location.
Air Conditioner Service Manual 2 Installation Space to the ceilling At least 15cm 2.
Air Conditioner Service Manual 2.2 Accessory Remote controller Drain hose Remote controller supporter Batteries Vinyl tape Hole cover Screw Insulation material 2.
Air Conditioner Service Manual 2.4 Position Indoor unit Install the indoor unit level on a strong wall that is not subject to vibrations The inlet and outlet ports should not be obstructed: the air should be able to blow all over the room. Do not install the unit near a source of heat, steam or flammable gas. Do not install the unit in too windy or dusty places. Do not install the unit where people often pass.
Air Conditioner Service Manual 9K Indoors Out doors 5mm 12K The hole must slope downwards towards the exterior. Note: Keep the drain pipe down towards the direction of the wall hole, otherwise leakage may occur. 18K 2.6.3 Electrical connections---Indoor unit 1).Lift the front panel. 2).Take off the cover as indicated in the picture (by removing a screw or by breaking the hooks). 3).For the electrical connections, see the circuit diagram on the right part of the unit under the front panel. 4).
Air Conditioner Service Manual numbers in the picture. When the piping is run in direction 1 or 3, cut a notch along the groove on the side of the indoor unit with a cutter. Run the piping in the direction of the wall hole and bind the copper pipes, the drain pipe and the power cables together with the tape with the drain pipe at the bottom, so that water can flow freely. When extending the drain hose at the indoor unit, install the drain pipe. Wrap the insulation material around the connecting portion.
Air Conditioner Service Manual Outdoor unit condensed water drainage (only for heat pump models) The condensed water and the ice formed in the outdoor unit during heating operation can be drained away through the drain pipe. 1) Fasten the drain port in the 25mm hole placed in the Insert the pipe connection into the relative slot. part of the unit as shown in the picture. 2) Connect the drain port and the drain pipe. Capacity (Btu/h) 7/9/12K 18K 24K Pipe Size (Torque) Gas Liquid 3/8" (4.2kg.m) 1/4" (1.
Air Conditioner Service Manual 2. Leakage Detection could be damaged. 1).With leakage detection. Check if there is leakage with leakage detection. connection pipes 2).With soap water. If leakage detection is not available, please use soap water for leakage flare nuts liquid tap detection. Apply soap water at the suspected position and keep the soap water for more than gas tap 3min.
Air Conditioner Service Manual 3. Maintenance 3.1 Failure code Code E0 E1 E2 Reason IDU & ODU Communication failure IDU Room Temperature sensor failure.（IDU RT failure） IDU Coil temperature sensor failure.（IDU IPT failure） Remark The IDU & ODU wiring connection correct? IDU sensor and PCB. IDU sensor and PCB. E3 ODU Coil temperature sensor failure. (OPT) ODU coil sensor and ODU PCB E4 AC Cooling system abnormal Gas leakage? 2-way or 3-way valve blocked etc.
Air Conditioner Service Manual F4 Cooling system gas flow abnormal PROTECTION.. Please check the troubleshooting for detail. F5 PFC PROTECTION Please check the troubleshooting for detail. F6 The Compressor lack of phase / Anti-phase PROTECTION. Please check the troubleshooting for detail. F7 IPM Module temperature PROTECTION Please check the troubleshooting for detail. F8 4-Way Value reversing abnormal.. Please check the troubleshooting for detail.
Air Conditioner Service Manual 3.3 Trouble shooting 3.3.1 E0 ---IDU & ODU communication failure Start Display E0 No IDU wiring connection correct ? Check and reconnect No No E0 disappear? Yes Yes OK OK Check communication wiring and the connection, in good condition? Replace/ reconnect No No E0 disappear? Yes OK Yes No n ODU wiring Connection correct? Check and reconnect Yes Yes OK OK No Main power supply from IDU? Yes No Check voltage from IDU terminal btw L,N.
Air Conditioner Service Manual 3.3.2 E1, E2 ---IDU Room temperature sensor and/or coil temperature sensor failure.
Air Conditioner Service Manual 3.3.3 E4 --- AC Cooling system abnormal (Gas not enough) Start Display E4 Check the pressure AC pressure correct? (cooling:0.8-1.3Mpa,/ heating 2.0-3.6Mpa) Yes Check the sensor short or open? No Yes No Replace the sensor Check the valves open or not Yes No Replace the main PCB Open the valves Lower than 0.8 Mpa in cooling, 2.
Air Conditioner Service Manual 3.3.4 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off condition Can the fan blades run smoothly? Adjust the motor and blade assembly so that rotor can run smoothly.
Air Conditioner Service Manual 3.3.5 E3, E7 or E8----ODU Coil temperature sensor, Ambient temperature sensor or Discharge temperature sensor failure. When any of the sensor resistance open or short circuit , unit will display failure code as E3/E7 or E8, IDU and ODU turns off. When the sensor resistance recovery, unit revert to be standby, customer can switch on the unit directly.
Air Conditioner Service Manual 3.3.6 E9---ODU IPM /Compressor drive fault If unit have 6 times stopping works for IPM protection (P0) continuously, it will display E9 error, and unit can’t be recovered to operation, except press ON/OFF button.
Air Conditioner Service Manual 3.3.7 EF---ODU DC fan motor failure Shut off Check the fan blade by hand, can it rotate freely No Re install the DC motor Yes Yes Works normal? No Fan motor well connect to PCB No Yes Re-connect Works normal? Yes No 1. For built-in control (5pins) motor: check the Vm=310V? Vcc=15V? 2. For external control (3pins) motor: test voltage btw U/V/W , normally from DC 20~200V. Yes Check the fan motor, can it operate or not.
Air Conditioner Service Manual 3.3.8 EU---ODU voltage test sensor failure After power relay works, when tested voltage effective value less than 50V for 3s continuously, unit will display EU.
Air Conditioner Service Manual 3.3.9 P0---IPM protection When overheat or overcurrent for IPM, AC unit will display P0protection. Display P0 Yes Restart unit. It works normal? No No Wiring connection U/V/W correct? Re-connect Yes No P0 disappear? Yes Yes Can compressor start up? No No test voltage btw U/V/W , (normally from DC 20~200V.) Yes No No Replace ODU fan motor Works normal? Yes AC pressure correct? (cooling:0.8-1.3Mpa,/ heating 2.0-3.
Air Conditioner Service Manual 3.3.10 P1--- Over / under voltage protection 1. Test voltage between L &N, When the power supply V＞AC260V or V＜AC150V, AC will display P1 protection, unit will recover back to previous status while V＞AC155V. 2.
Air Conditioner Service Manual 3.3.11 P2---Over Current protection When the AC unit running current more than Imax, it will stop and display P2 protection. Note: for different AC model, Imax has difference valve.
Air Conditioner Service Manual 3.3.12 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature higher than 60℃? Yes Normal protection No Unit operate? No ODU location acceptable? No Enough space for ventilation? Yes Yes Condenser too dirty? or filter blocked? Yes Adjust ODU installation No Yes Clean IDU filter or ODU condenser.
Air Conditioner Service Manual 3.3.13 P5---Sub-cooling protection on Cooling/Dry mode On Cooling or Dry mode, when IDU evaporator coil temperature IPT＜1℃ continuously for 3 min after compressor start up for 6 min, CPU will switch off outdoor unit and show P5 failure code.
Air Conditioner Service Manual 3.3.14 P6---Overheating protection on Cooling mode On Cooling or Dry mode, when ODU condenser coil temperature OPT≥62℃ , MCU will switch off outdoor unit and show P6 failure code.
Air Conditioner Service Manual 3.3.15 P7---Overheating protection on Cooling mode On heating mode, when IDU evaporator coil temperature IPT≥62℃, ODU PCB will switch off outdoor unit and show P7 failure code.
Air Conditioner Service Manual 3.3.16 P8---Outdoor Overtemperature/Under-temperature protection When environment temperature as below condition, the compressor will stop working, after 200s delay, the IDU will show P8 failure code. (1). On Cooling or Dry mode: ODU ambient temperature: OAT＜-20℃ or OAT＞63℃; (2). On Heating mode: a. OAT≥40℃ b. 30℃＜OAT≤40℃ and RT＞35℃ Display P8 Ambient temperature under spec.
Air Conditioner Service Manual 3.3.17 P9---The compressor driving protection (the compressor load abnormal) When compressor start up or in the process of operation, if: (1). MCU can’t test the feedback signal from compressor, or (2). Tested a abnormal signal from compressor, or (3). The compressor startup abnormal. The outdoor unit will shut off, and show P9 protection.
Air Conditioner Service Manual 3.3.18 F4---Cooling system Gas flow abnormal protection When compressor startup, unit will check the variation of IDU coil temperature. If there is mistake installer forgetting to open the 2-way or 3-way valve on ODU, the gas can’t flow in the cooling system, it will show F4 protection.
Air Conditioner Service Manual 3.3.
Air Conditioner Service Manual 3.3.20 F6 The Compressor Lack of phase / Anti-phase protection. If ODU PCB can’t test one, or even three phase of compressor current, it will show F6 protection.
Air Conditioner Service Manual 3.3.21 F7---Module temperature protection. IPM overtemperature protection, when IPM temperature more than 95℃, it will show F7. Display F7 No IPM well contact to heat sink? Any dust or gap btw IPM & heat sink? Yes Clean or adjust the gap btw IPM and heat sink No Yes F7 disappear? Check the screw fully fasten? No Yes Yes No Fix the screw ODU cooling system abnormal? Compressor with big running current? (9,12K:6-7A, 18,24K:7-9A) Yes Low pressure normal? （0.8-1.
Air Conditioner Service Manual 3.3.22 F8---4-Way Value Reversing abnormal On heating mode, if IDU Coil temperature tested lower than Room temperature 5℃ or even more after compressor works for 8min, unit will show F8 code.
Air Conditioner Service Manual 3.3.23 Fy--- Gas leakage protection After compressor works in high frequency for 9 min, if the temperature on IDU evaporator & ODU condenser has only a little variation comparing previous, but, the compressor discharge temperature on high level, then the unit will show Fy failure code. Display Fy Check the pipe connection, any gas leakage? No Check the room & evaporator coil temperature. Yes Repair and charge new gas as SPEC.
Air Conditioner Service Manual 3.4 compressor inspection method Use the multimeter to test the resistance between three terminal of compressor. The resistance between three terminal should be the same.the normal value should be 0.5-2 Ω. Resistance value： UV=VW=WU 3.5 indoor fan motor inspection method Use the multimeter to test the resistance between three terminal of fan motor, Resistance value: (BLK-RED) + (RED-WHT) = (RED-WHT) 3.
Air Conditioner Service Manual 4. Disassembly IDU & ODU 4.1. IDU Disassembly Steps Reference photo 1. Before disassembly The orginal status. 2. Disassembly front panel, display board and WIFI module. Display box 显示盒 A. Open front panel. B. Remove one screw and take the display box out from the panel. C. Release panel axis which shown in red arrows out from middle frame and take the panel out. D. Unscrew and take the WIFI module out from middle frame. WIFI Module WiFi模块 3. Remove the louver.
Air Conditioner Service Manual 4. Remove the electric control box cover Unfix one screw on the cover of electric box, and remove the cover. 固 定 The Fix 螺screw 钉 5. Remove the filter Push the filter upwards a little, you can take it out from unit. 6. Disassembly the middle frame. Clasps 插扣 A. Open the screw cover, and unfix screw with cross screwdriver. B. Remove the middle frame by loosing the clasps with the unit base as shown in the picture and take the frame out.
Air Conditioner Service Manual 7. Disassembly the electric control box. 电控盒 Electric control box A. Remove the RT & IPT out from evaporator; B. Unscrew all the earth ground wirings on the evaporator. C. Take all the connectors out from PCB. D. Unfix one screw of the control box with unit BASE FRAME, and take the control box out from unit. Note: The right picture for your reference only, for the exact model the wiring connection may have a little difference. 8.
Air Conditioner Service Manual 9. Disassembly the evaporator screws A. Unfix 2 screws of left side shown as picture. B. Unfix 2 screws of right side on motor cover/right support plate. C. Take the evaporator out from unit by uplifting the IUPUT/OUTPUT pipes slightly. Screws + motor cover 螺钉/卡扣 螺钉 10. Remove the MOTOR COVER 螺钉 screws Unfix 4 screws on the motor cover with base frame. 11. Disassembly fan motor and fan blade. A. Uplift the fan blade and fan motor, take the base frame out. B.
Air Conditioner Service Manual 4.2 ODU Assembly Step Reference picture step1：Remove the PCB Cover , valve Cover and top cover 1). Unfix one screw on the PCB cover, you can take the cover out from unit. A B 2). Unfix one screw on the valve cover, you can take it out easily. Unfix screws btw the top cover with front panel, left and right plate, then you can take the top cover out. step2：Disassemble the Fan Guard and Front Panel A Unfix screws on front panel with fan guard.
Air Conditioner Service Manual B ODU middle separate plate and base plate, uplift front panel you can take it out from unit. step3：Disassemble the Left and Right plate. A B Unfix screws btw Right Plate and the Electric Box assembly, Valve Plate , Base Plate, then you can take the Right plate out. Unfix screws btw Left Plate, Base plate and Condenser plate, you can take the left plate out.
Air Conditioner Service Manual step4：Disassemble the Axis Fan Blade A Unscrew the fan blade nut, and take the blade out. step5：Disassemble the electric box Unfix screw btw Electric Box and motor supporter etc. loosen the wiring clamp, then you can take the control box out.
Air Conditioner Service Manual step7：Disassemble the separate plate Unfix the screw btw separate plate and unit, and take it out step8：Disassemble the 2 and 3-way valve Unfix screw btw Valve plate and base, you can take the 2-way and 3-way valve out by welding. Note: 1). The welding can only place while no gas in the unit. 2). Pay attention to the fire to prevent any injury. step9：Disassemble the 4-way valve assembly Take the 4-way valve out from system by welding.
Air Conditioner Service Manual step10：Disassemble the compressor. Unscrew the nuts and take the compressor out. step11：Remove the fan motor and fan supporter. Unfix screws btw fan motor with supporter, and supporter with base plate. Note: Pay attention to the motor wiring, it can’t be taken out by force.
Air Conditioner Service Manual APPENDIX Appendix 1 The comparison table of Celsius-Fahrenheit temperature Fahrenheit diplay temperature (℉) Fahrenheit (℉) 61 62/63 64/65 66/67 68 60.8 62.6 64.4 66.2 68 Celsius (℃) 16 17 18 19 20 Fahrenheit diplay temperature (℉) 69/70 71/72 73/74 75/76 77 Celsius Fahrenheit (℉) (℃) 69.8 71.6 73.4 75.2 77 Fahrenheit diplay temperature (℉) 21 22 23 24 25 Celsius Fahrenheit (℉) 78/79 80/81 82/83 84/85 86 (℃) 78.8 80.6 82.4 84.
Air Conditioner Service Manual Appendix 3 Pipes Flaring Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure. A. Cut the pipes and the cable. 1) Use the piping kit accessory or the pipes purchased locally. 2) Measure the distance between the indoor and the outdoor unit. 3) Cut the pipes a little longer than measured distance. 4) Cut the cable 1.5m longer than the pipe length. B.
Air Conditioner Service Manual Appendix 4 THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP. (℃) Resistance (k Ohm) Voltage of resistance TEMP. (℃) Resistance (k Ohm) Voltage of resistance TEMP. (℃) Resistance (k Ohm) Voltage of resistance -30 63.513 4.628 15 7.447 2.968 60 1.464 1.115 -29 60.135 4.609 16 7.148 2.918 61 1.418 1.088 -28 56.956 4.589 17 6.863 2.868 62 1.
Air Conditioner Service Manual Resistance at 25℃: 5 kΩ. TH1: indoor room temperature sensor and outside air temperature sensor TH2: indoor exchange temperature sensor and outside exchange temperature sensor Before measuring resistance, disconnect connectors as shown above. 1) Outdoor unit sensor temperature characteristics TEMP. R min (k Ohm) R(t) (k Ohm) R max (k Ohm) TEMP. R min (k Ohm) R(t) (k Ohm) R max (k Ohm) -30 283.3 322.9 367.7 24 19.36 78 2.563 2.654 2.745 -29 267.4 304.
Air Conditioner Service Manual -2 63.74 70.48 77.87 52 6.309 6.655 7.013 106 1.073 1.12 1.168 -1 60.69 67.05 74 53 6.08 6.409 6.748 107 1.042 1.089 1.136 0 57.81 63.8 70.34 54 5.861 6.173 6.495 108 1.013 1.058 1.104 1 55.08 60.72 66.88 55 5.651 5.947 6.253 109 0.9833 1.028 1.074 2 52.49 57.81 63.61 56 5.449 5.73 6.02 110 0.9553 0.9997 1.045 3 50.03 55.05 60.52 57 5.255 5.522 5.798 111 0.9283 0.9719 1.016 4 47.71 52.44 57.59 58 5.
The design and specifications of this product are subject to change without prior notice as development continues. Consult with the sales agency or manufacturer for details. Refer to the equipment nameplate for all other applicable specifications. is a registered trademark of Parker Davis HVAC International, Inc. Parker Davis HVAC International, Inc. 3250 NW 107 Avenue, Doral, FL 33172 - USA Tel : (305) 513-4488 : (305) 513-4499 Fax E-mail : support@pdhvac.com Website: https://www.pdhvac.
