Pioneer WYT009ALSI24RL Service Manual
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Pioneer WYT009ALSI24RL Service Manual

Pioneer WYT009ALSI24RL Service Manual

Inverter air conditioner
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Inverter air conditioner
Service Manual
Models:
WYT009ALSI24RL WYT009GLSI24RL
WYT012ALSI24RL WYT012GLSI24RL
WYT018GLSI24RL WYT024GLSI24RL
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Summary of Contents for Pioneer WYT009ALSI24RL

  • Page 1 Inverter air conditioner Service Manual Models: WYT009ALSI24RL WYT009GLSI24RL WYT012ALSI24RL WYT012GLSI24RL WYT018GLSI24RL WYT024GLSI24RL...

  • Page 2: Table Of Contents

    CONTENTS Part Ⅰ Technical Information ....................2 1. Important Notice ........................3 2. Specifications .......................... 4 2.1 Operation characteristic curve ......................4 2.2 Refrigeration cycle diagram ......................7 3. Product Dimensions ....................... 8 4. Electric Diagram ........................9 4.1 Wiring diagram ..........................9 4.2 PCB LAOUT ...........................11 5.

  • Page 3: Part Ⅰ Technical Information

    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.

  • Page 4: Specifications

    2. Specifications 2.1 Operation characteristic curve 2.1.1 The relation curve of CAPACITY-AMBIENT TEMPERATURE...
  • Page 5 2.1.2 The relation curve of PRESSURE-TEMPERATURE WYT009GLSI24RL WYT009ALSI24RL WYT012GLSI24RL f(Hz) f(Hz) f(Hz) (MPa/psi) (MPa/psi) (MPa/psi) (MPa/psi) (MPa/psi) (MPa/psi) 35 ℃（ 95 ℉） Cooling 2.06/298.78 0.98/142.13 2.01/291.52 0.96/139.23 2.02/292.97 0.99/143.59 43℃（109.4 ℉） Cooling 2.54/368.4 1.02/147.94 2.5/362.59 0.97/140.69 2.51/364.04 1.01/146.48 48 ℃（ 118.4 ℉） Cooling 2.88/417.71...
  • Page 6 2.1.4 The range of normal working environment temperature WYT009GLSI24RL WYT009ALSI24RL WYT012GLSI24RL Outdoor Outdoor Outdoor Mode Room temperature Room temperature Room temperature temperature temperature temperature Cooling 17℃~32 -20℃~53℃ 17℃~32 -20℃~53℃ 17℃~32 -20℃~53℃ (62.6℉~89.6℉) (-4℉~127.4℉) (62.6℉~89.6℉) (-4℉~127.4℉) (62.6℉~89.6℉) (-4℉~127.4℉) operating Heating 0℃~30℃...

  • Page 7: Refrigeration Cycle Diagram

    2.2 Refrigeration cycle diagram WYT009GLSI24RL WYT009ALSI24RL WYT012GLSI24RL WYT012ALSI24RL WYT018GLSI24RL WYT024GLSI24RL Check valve Liquid side 2-way valve Capillary Heat exchange Heat exchange (Condenser) (Evaporator) Gas side 3-way valve 4-way valve Muffler Muffler Heating Cooling Compressor...

  • Page 8: Product Dimensions

    Outdoor Unit: Indoor unit(mm/inch) Outdoor unit(mm/inch) Model 195.3 305.6 WYT009GLSI24RL /32.28 /7.69 /12.03 /29.17 /21.69 /9.96 /17.08 /11.22 /1.89 /2.28 195.3 305.6 WYT009ALSI24RL /32.28 /7.69 /12.03 /29.17 /21.69 /9.96 /17.08 /11.22 /1.89 /2.28 195.3 305.6 WYT012GLSI24RL /36.22 /7.69 /12.03 /29.17 /21.69 /9.96...

  • Page 9: Electric Diagram

    4. Electric Diagram 4.1 Wiring diagram INDOOR UNIT： MODEL：WYT009GLSI24RL；WYT024GLSI24RL MODEL：WYT009ALSI24RL；WYT012ALSI24RL；WYT012GLSI24RL；WYT018GLSI24RL...
  • Page 10 OUTDOOR UNIT： MODEL：WYT009GLSI24RL；WYT012GLSI24RL；WYT018GLSI24RL；WYT024GLSI24RL MODEL：WYT009ALSI24RL；WYT012ALSI24RL...

  • Page 11: Pcb Laout

    4.2 PCB LAOUT Indoor unit Indoor PCB WYT009GLSI24RL WYT024GLSI24RL Top view ODU AC power output Fuse ODU AC power input （3） AC motor driver IDU/ODUwiring connection-N connector Power supply-N connector IDU/ODUcommunication wiring AC Motor feedback Up-Down swing connector Bottom view Left-Right swing connector Display Emergency button...

  • Page 12: Indoor Pcb

    Indoor PCB WYT009ALSI24RL；WYT012ALSI24RL；WYT012GLSI24RL；WYT018GLSI24RL Top view DC motor driver Power supply-N connector IDU/ODU wiring connection-N connector IDU/ODU communication （3） wiring Left-Right swing connector Up-Down swing connector Emergency button WIFI connector Temperature sensor connector Display Cold plasma generator Bottom view Fuse ODU AC power input...
  • Page 13 Outdoor unit Outdoor PCB WYT009ALSI24RL;WYT012ALSI24RL TOP View 4-way valve Heater L,N&Communication Fuse ODU PCB Mainly relay DC Motor connector Electronic expansion valve Discharge sensor connector OAT/OPT sensor connector LED5 Bottom view...

  • Page 14: Outdoor Pcb

    Outdoor PCB WYT009GLSI24RL WYT012GLSI24RL Top view 4-way valve Heater L, N & Communication Fuse ODU PCB Mainly relay DC Motor connector Electronic expansion valve Discharge sensor connector OAT/OPT sensor connector LED5 Bottom view...
  • Page 15 Outdoor PCB WYT018GLSI24RL Top view 4-way valve Heater L, N & Communication Fuse ODU PCB Mainly relay DC Motor connector Electronic expansion valve Discharge sensor connector OAT/OPT sensor connector LED5 4-way valve Heater L, N & Communication Bottom view...
  • Page 16 Outdoor PCB WYT024GLSI24RL Top view 4-way valve P8 Heater CN11 L, N & Communication FUSE1 ODU PCB Mainly relay RY-QD1 DC Motor connector CN12-2 Electronic expansion valve Discharge sensor connector CN2 OAT/OPT sensor connector CN1 LED5 AC Motor connector P9 LED1-LED4 Bottom view Note:...

  • Page 17: Unit Control

    5. Unit Control 5.1 Remote controller The out looking and some function of remote controller maybe different. The shape and position of switches and indicators may be different according to the model, but their function is the same. The actual shape and position shall prevail.
  • Page 18 Remote controller DISPLAY...

  • Page 19: Unit Control

    5.2 Unit Control RT-------Room Temperature. IPT------Indoor Pipe (Coil) Temperature. ST------Indoor Setting Temperature. OPT---Outdoor Pipe Temperature. CRT---Compensated Room Temperature. IDU--- Indoor unit ODU---Outdoor unit. Note: When AC finishing installation, because of the air ventilation and the distance of temperature test sensor to different location of the house, the temperature for IDU PCB control need compensation.

  • Page 20: Dry Mode

    2). When switch on unit on cooling mode, ODU fan motor will start up 3s ealier than compressor starts up. 5.2.2.4. When ODU failure or stops for protection, IDU works as preset. 5.2.2.5. Anti-frosting protection Stopping the compressor to achieve anti-frosting protection. 1).
  • Page 21 6). In the process of unit operation, once the compressor ceased, it should be 3 min delay for the next procedure. 5.2.4.3. IDU time delay: When compressor stops or unit switches off while in heating mode, IDU fan motor will work for 50 seconds.

  • Page 22: Fan Mode

    the position to: Default angle; or Previous position; or Customer preset. The above operation can work one time only, when compressor stops working, the unit will once again inspect the function. b. If the vane works on swing: When IDU quits from cold air prevention, vane operate as preset. 46.4 ℉)”...

  • Page 23: Emergency Switch

    5.2.8 Emergency switch When the EMERGENCY switch is pressed one time, COOLING mode is selected and if it pressed again within 3s, HEATING mode selected, while press once again, the unit will be switched off. When the remote controller out of function, batteries lost power, for example, the EMERGENCY button in the front of indoor unit can be used for function test.

  • Page 24: Part Ⅱ Installation And Maintenance

    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. ●...
  • Page 25 Attempting To Service This Product. All Safety Precautions Must Be Followed. ● WARNING – Risk of Fire due to Flammable Refrigerant Used. Follow Handling Instructions Carefully in Compliance with National Regulations. Installation Safety Precaution 1) Select the installation location according to the requirement of this manual. (See the requirements in installation part).
  • Page 26 If compressor starts running when the valves is open and connecting pipe is not yet connected, air will be sucked in and cause pressure rise and then compressor overheat or gas leak, resulting in injury. When installing the unit, make sure that connecting pipe is securely connected before the compressor starts running.

  • Page 27: Installation Safety

    Table GG.1 - Maximum charge (kg) Floor area (m Maximum charge (kg) Category kg/m (m/ft) (kg/ft 4/43.06 7/75.35 10/107.64 15/161.46 20/215.28 30/322.92 50/538.2 0.6/1.97 0.36 0.62 0.89 1.27 1.46 1.79 2.32 1/3.28 0.59 1.04 1.48 2.11 2.44 2.99 3.86 1.8/5.9 1.07 1.86 2.66...
  • Page 28 Mind Static Electricity Must wear protective clothing and anti-static gloves Don`t use mobile phone Installation Safety  Refrigerant Leak Detector  Appropriate Installation The left picture is the schematic diagram of a refrigerant leak Location detector. Caution: The installation should be in a well-ventilated condition location. ...

  • Page 29: Special Tools

    conducting any work that will produce heat. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere. 8) Checks to the refrigeration equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification.

  • Page 30: Maintenance

    It is necessary to carry fire extinguisher(s) when installing and maintaining an air conditioner. On the maintenance site, there should be two or more kinds of dry powder, carbon dioxide and foam fire extinguishers and that such fire Fire Extinguisher extinguishers should be placed at stipulated positions, with eye-catching labels and in handy places.
  • Page 31  If the product is damaged to the extent that it is a must to open the refrigerating system for maintenance, it is a must to carry the product back to the maintenance station for maintenance. (It is prohibited to weld the refrigerant pipe and do other operations on the user’s site.) ...
  • Page 32 8). Maintenance of electrical components  It is necessary to use a special leak detector to check whether the maintained electrical parts location have the leak refrigerant.  It is not allowed to refit, remove or cancel any component with the safety protection function after finishing the maintenance process.

  • Page 33: Installation

    2 Installation 2.1 Installation Dimension Diagram Space to the wall At least 15cm/0.49ft At least 15cm/0.49ft Space to the wall Space to the obstruction Space to the floor Space to the obstruction Drainage pipe Connecting wire...

  • Page 34: Accessory

    2.2 Accessory Remote controller Remote controller Batteries Vinyl tape supporter Drain hose Screw Insulation material Hole cover...

  • Page 35: Position

    2.4 Electricity and wiring 2.3 Position Safety precaution Indoor unit 1） Must follow the electric safety regulations when  Install the indoor unit level on a strong wall that installing the unit. is not subject to vibrations 2） According to the local safety regulations, use ...
  • Page 36 Indoors Out doors 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. 2.5.3 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).
  • Page 37 2).Insert the fare nut and create a flange at the Front panel extreme end of the connection pipe. Wiring diagram Terminal block cover 3).Tighten the connections by using two wrenches working in opposite directions. ★ Refrigerant piping connection When extending the drain hose at the indoor unit, install the drain pipe.

  • Page 38: Odu Installation

    mounted on the power cord plate and fixed with 2).The drain hose must slant downwards to aid two screws (ST4.2×13), parts such as the center drainage. frame need to be disassembled when installing it. 3).Do not bend the drain hose or leave it PCB connection port is CN30.

  • Page 39: Vacuum And Gas Leakage Test

    piezometer remains in -0.1Mpa. Pay attention that water is drained in a 3) Close the vacuum pump and maintain this status suitable place. for 1-2min to check if the pressure of piezometer remains in -0.1Mpa. If the pressure decrease, there may be leakage.

  • Page 40: Maintenance

    3. Maintenance 3.1 Failure code Code Reason Remark IDU & ODU Communication failure The IDU & ODU wiring connection correct? IDU Room Temperature sensor failure.（IDU RT IDU sensor and PCB. failure） IDU Coil temperature sensor failure.（IDU IPT IDU sensor and PCB. failure）...
  • Page 41 PFC PROTECTION Please check the troubleshooting for detail. The Compressor lack of phase / Anti-phase Please check the troubleshooting for detail. PROTECTION. IPM Module temperature PROTECTION Please check the troubleshooting for detail. 4-Way Value reversing abnormal.. Please check the troubleshooting for detail. The module temperature test circuit failure.

  • Page 42: Troubleshooting

    3.2 Troubleshooting 3.2.1 E0 ---IDU & ODU communication failure Start Display E0 IDU wiring Check and E0 disappear? connection correct ? re-connect Check communication Replace/ E0 disappear? wiring and the connection, re-connect in good condition? ODU wiring Check and E0 disappear? Connection correct? re-connect Check the power...
  • Page 43 3.2.2 E1, E2 ---IDU Room temperature sensor and/or coil temperature sensor failure. Start Display E1or E2 Is the sensor well Re-connect connected to PCB E1/E2 disappear? Multi-meter check the Replace the sensor sensor, is it open or short circuit? The malfunction eliminated? Replace IDU PCB...
  • Page 44 3.2.3 E6----IDU ventilation failure (PG and DC fan motor only) Start Display E6 Turn the fan blades by hand while power-off condition Adjust the motor and blade Can the fan blades run assembly so that rotor can smoothly? run smoothly. E6 disappear? Fan motor well Check and reconnect...
  • Page 45 3.2.4 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.
  • Page 46 3.2.5 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. Display E9 Display F9 or FA first Replace ODU PCB then E9 Re-power on unit running...
  • Page 47 3.2.6 EF---ODU DC fan motor failure Shut off Check the fan blade by Re install the DC motor hand, can it rotate freely Works normal? Fan motor well connect Re-connect to PCB Works normal? 1. For built-in control (5pins) motor: check the V =310V? V =15V?
  • Page 48 3.2.7 EU---ODU voltage test sensor failure After power relay works, when tested voltage effective value less than 50V for 3s continuously, unit will display Start Display EU Test voltage btw ODU Check while voltage terminal L/N, more than become normal 50V~? Unit works? Replace ODU PCB...
  • Page 49 3.2.8 P0---IPM protection When overheat or overcurrent for IPM, AC unit will display P0protection. Display P0 Restart unit. It works normal? Wiring connection Re-connect U/V/W correct? P0 disappear? ODU fan motor no Replace ODU Can compressor works or too slowly? fan motor start up? Works normal?

  • Page 50: Over / Under Voltage Protection

    3.2.9 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. Test voltage on the big size electrolytic capacitor of ODU PCB, When DC busbar voltage V＞DC420V or V ＜DC150V, unit will recover back to previous status while DC190V＜V＜DC410V Display P1 Wait until the AC...
  • Page 51 3.2.10 P2---Over Current protection When the AC unit running current more than I , it will stop and display P2 protection. Note: for different AC model, I has difference valve. Display P2 ODU fan motor Replace fan motor works? P2 disappear? IDU filter or ODU Clean IDU filter or condenser too...
  • Page 52 3.2.11 P4 ---ODU Discharge temperature overheating protection Display P4 ODU temperature Normal protection higher than 60℃? Adjust ODU ODU location Enough space for Unit operate? installation acceptable? ventilation? Condenser too Clean IDU filter or P4 disappear? dirty? or filter ODU condenser. blocked? IDU/ODU fan motor Fan blade...
  • Page 53 3.2.12 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. Display P5 Switch on unit after minutes Clean filter...
  • Page 54 3.2.13 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. Display ODU fan motor Fan motor Replace fan motor works normal? broken? P6 disappear? Sensor loosing...
  • Page 55 3.2.14 P7---Overheating protection on Cooling mode ℃ , ODU PCB will switch off outdoor unit and On heating mode, when IDU evaporator coil temperature IPT≥62 show P7 failure code. Display P7 ODU fan motor Fan motor Replace fan motor works normal? broken? P7 disappear? Sensor loosing...
  • Page 56 3.2.15 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.
  • Page 57 3.2.16 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.
  • Page 58 3.2.17 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.
  • Page 59 3.2.18 F5---PFC Protection PFC Overcurrent protection F5 Code Check the power supply, Display F5 by is it abnormal? (this is random? normal protection) Display F5 frequently Switch off the unit for 3 Still F5? minutes and re-switch on Still F5? Replace ODU PCB...
  • Page 60 3.2.19 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. Display F6 Check compressor wiring connector, is Re-connect it well connected? Problem solved? The Compressor Replace the wires wiring in good quality?
  • Page 61 3.2.20 F7---Module temperature protection. IPM overtemperature protection, when IPM temperature more than 95℃, it will show F7. Display F7 Clean or adjust the gap IPM well contact to Any dust or gap btw btw IPM and heat sink heat sink? IPM &...
  • Page 62 3.2.21 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. Display F8 the 4-way valve wiring connection Re-connect correct? F8 disappear? Multimeter test the...
  • Page 63 3.2.22 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.
  • Page 64 3.2.23 Fd--- Refrigerant detector failure Start display Fd error code Detector connect to connect well PCB well No Fd display detector is short change new circuit or open circuit detector No Fd display change PCB 3.2.24 Fd--- Refrigerant leakage protection The system has detected a refrigerant leakage.

  • Page 65: Disassembly Idu & Odu

    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. 显示盒 Display A. Open front panel. B. Remove one screw and take the display box out from the panel. C.
  • Page 66 4. Remove the electric control box cover Unfix one screw on the cover of 固 electric box, and remove the cover. 定 螺 screw 钉 5. Remove the filter Push the filter upwards a little, you can take it out from unit. 6.
  • Page 67 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.
  • Page 68 9. Disassembly the evaporator screws Screws + 螺钉/ 卡扣 A. Unfix 2 screws of left side shown 螺钉 motor cover 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.

  • Page 69: Odu Assembly

    4.2 ODU Assembly Step Reference picture Before disassembly 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. 2). Unfix one screw on the valve cover, you can take it out easily.
  • Page 70 step2：Disassemble the Fan Guard and Front Panel Remove the screws assembling the grille to the front panel and remove the grille. Unfix screws on front panel with fan guard, ODU middle separate plate and base plate, uplift front panel you can take it out from unit step3：Disassemble the Left and Right plate.
  • Page 71 Unfix screws btw Left Plate, Base plate and Condenser plate, you can take the left plate out. step4：Disassemble the Axis Fan Blade Unscrew the fan blade nut, and take the blade out. step5：Disassemble the electric box Unfix screw btw Electric Box and motor supporter etc.
  • Page 72 step6：take out the noise cotton Shown as picture to take the cotton out 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.
  • Page 73 step9：Disassemble the 4-way valve assembly Take the 4-way valve out from system by welding. Make sure no hurt to the compressor and nameplate, etc. 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...

  • Page 74: Appendix

    75.2 84/85 84.2 Appendix 2 The Pipe length and Gas charging Connecting pipes size and length for installation Pipe size(Inch) Model Liquid WYT009GLSI24RL WYT009ALSI24RL WYT012GLSI24RL WYT012ALSI24RL WYT018GLSI24RL WYT024GLSI24RL Outdoor unit Indoor unit Pipe length is Pi pe length is 15 meters Max.

  • Page 75: Appendix 3 Pipes Flaring

    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.

  • Page 76: Appendix 4 Thermistor Temperature Characteristics

    Appendix 4 THERMISTOR TEMPERATURE CHARACTERISTICS 1). Indoor unit and outdoor exchange temperature and outside air temperature sensor temperature characteristics TEMP. Resistance Voltage of TEMP. Resistance Voltage of TEMP. Resistance Voltage of ℃(℉) (k Ohm) resistance ℃(℉) (k Ohm) resistance ℃(℉) (k Ohm) resistance -30(-86)
  • Page 77 Resistance at 25℃(77℉):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 R(t) R max TEMP.
  • Page 78 -2(-35.6) 63.74 70.48 77.87 52(125.6) 6.309 6.655 7.013 106(222.8) 1.073 1.12 1.168 -1(-33.8) 60.69 67.05 53(127.4) 6.08 6.409 6.748 107(224.6) 1.042 1.089 1.136 0(32) 57.81 63.8 70.34 54(129.2) 5.861 6.173 6.495 108(226.4) 1.013 1.058 1.104 1(33.8) 55.08 60.72 66.88 55(131) 5.651 5.947 6.253...
  • Page 79 7290 NW 77 Court, Miami, FL 33166 - USA : (305) 513-4488 : (305) 513-4499 E-mail : info@pdhvac.com Website: www.pdhvac.com Pioneer product line, parts, and supplies are available online for convenient ordering at: www.highseer.com www.pioneerminisplit.com Scan the below code to visit our support page where you can find more installation materials: Copyright ©...

This manual is also suitable for:

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