CONTENTS 1.Range & Conditions ......................3 1.1 Operating Range..................... 3 1.2 Operating Conditions ....................3 2.Specifications ........................4 2.1 Unit Specifications....................4 2.2 Specifications of main parts..................4 2.3 Specifications of other parts ..................6 3. Control Specifications....................... 7 3.1 System source ......................7 3.2 Control functions .....................
1.Range & Conditions 1.1 Operating Range Operating Modes Temperature Indoor Temperature Outdoor Temperature Max. 32℃ DB/27℃ WB 43℃ DB Cooling Min. 21℃ DB/15℃ WB 21℃ DB 1.2 Operating Conditions Rated Operating Conditions Indoor Temperature Outdoor Temperature Cooling 27℃ DB/19℃ WB 35℃...
2.Specifications 2.1 Unit Specifications 220V 60 Hz (single phase) Rated voltage Electrical rating Voltage range 198~253V~/60Hz (single phase) Features Controls / Temperature control Microprocessor / I.C thermostat Control unit Control panel of indoor unit Air filter Anti-mold, washable Compressor Rotary-type (Hermetic) Refrigerant Refrigerant control Capillary tube...
2.2.2 Outdoor unit Controller PCB Part No. Fuse Compressor model SHW73TC4-E Safety devices Type Internal Operating capacitor μF/ VAC 60/450 Fan & Fan motor Fan type Propeller fan Fan motor model YDK53-6Q-1 Heat exchanger Aluminum fin tube Copper Data subject to change without notice...
2.3 Specifications of other parts Indoor unit Transformer Indoor temperature KTEC-41-C12 Thermal resistor Coiled pipe KTM-41-C9 Resistance temperature 25℃ KΩ Power supply length (m) / cross section (mm Rated value 20A, 250VAC JZC-32F-012-1H1 JZC-32F-012-1H1 Power relay Coil rated voltage, 12V- 12V- Current coil resistance(20℃) 300Ω±10%...
3. Control Specifications 3.1 System source 3.1.1 Signal input Temperature sensor signal (indoor temperature , indoor coiled temperature, outdoor coiled temperature); remote control signal; key input. 3.1.2 Signal output LED×4 (SI, SCK, RCK or air refresh, operation, pause, timer); louver motor (a, b, c, d); buzzer, compressor, 4-way reversing valve, indoor fan motor (H,M,L), outdoor fan motor, AUH, air refresh, and other assistant functions.
3.2.5 Blowing surplus energy function: The first situation: When the unit is turned off in heating operation, the time for blowing surplus energy is 80 seconds. When Trc<32℃, the louver is in position 5 ( Fan speed is at low level). The second situation: When the unit enters defrosting when in heating operation, the time for blowing surplus energy is 30 seconds.
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3.3.1.4 All output (air refresh, AUH, air ventilate, etc.) is effective. 3.3.1.5 In cooling mode, the original set temperature is Ts=Tr-5℃ and 22℃≤Ts≤27℃, then the master unit will not change operation mode when the unit enters cooling mode. If users want to change working condition by remote controller, in case the condition will not conflict with the master unit mode, ( such as cooling mode conflicts with AUH mode), the master unit will operate and display in new condition set by remote controller.
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When Tr≤15℃, indoor and outdoor fan motor will stop running, louver blades (vertical direction) can’t be controlled. Manual operation in vertical direction: When necessary, users can select the position of louver blade in position of 1~5 in Figure 1. Fan sweep in vertical direction: The range of sweeping is in position 2-5, the fan speed is 5 degree/second.
3.4 Protection function 3.4.1 Delay-starting protection for the compressor Compress will restart working 3 minutes (5 minutes in HEAT mode) later the turn-off of compressor or power-off to keep the pressure balance of the cooling system. 3.4.2 Cool-airflow-prevention: In heating operation, the time for compressor running or stopping can not be longer than 5 minutes. When the unit is in operation and the compressor has not been started yet, Trc≥F℃, then indoor fan motor runs at low level.
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motor turns to low speed; When T<H℃, compressor, indoor and outdoor fan motor return to normal running ( there is 3 minutes protection for compressor). 3.4.6 Heating overload working: (not available for cooling-only type air conditioner) When Trc≥A℃, the unit enters heating overload protection. If indoor fan speed is set at low or breeze level, it will turn to medium speed automatically;...
3.4.7.2 Defrosting: Compressor and outdoor fan motor will stop working after the unit entering defrosting running. 5 5seconds later, 4-way reversing valve will close. Another 5 seconds, compressor starts running. When the time of the compressor running is for more than 8 minutes or Toc≥35℃, compressor stops. 55 seconds later, 4-way reversing valve will open.
The CPU runs as 60 times as the former speed. (There is no timer reducing function within 1 minute) 3.5.3 AUH A. Starting conditions for AUH a. Having received starting AUH signals from remote controller. b. In the heating mode. c.
the original running mode. 3.5.6 Quiet Operation Press “QUIET” button when air conditioner is “FAN SWEEP” status, the indoor fan will run at low level. Press “AIR REFRESH” button when air conditioner is in off status and set fan speed as quite mode, the indoor fan will run at low level.
……; 1s →Pause indicator lights 1s→ The display screen displays every 11,22,33,44,55,66,77,88,99,00 1s circularly. After receiving the signal from the remote controller, the unit will operate by the signal. During the courts of demonstration, all signals of outdoor unit are ineffective. 3.6.
4. Exploded view 4.1 Exploded view for indoor unit TYPE A TYPE B...
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NAME OF PART Q’TY NAME OF PART Q’TY panel assembly Wire connecting terminal board panel Power cord transformer Panel support remote controller medium frame assembly air filter medial frame air filter display box assembly electric control cover assembly evaporator assembly wall plate air -guiding frame assembly fixed plate...
5. Refrigerant Flow Diagram Tube Diameter Narrow tube Φ6.35mm Wide tube Φ15.88mm Thermal insulating of refrigerant pipeline To prevent heat loss and condensed water from dropping on the floor, the wide and narrow tube of air conditioner should be wrapped with thermal insulating materials. For using capillary tube, and the tubes are in low temperature, the thickness of thermal insulating materials shall be more than 8mm.
6. Circuit Diagram 6.1 Electrical wiring diagram for indoor unit To avoid electrical shock hazard, be sure to disconnect power before Warning checking, servicing and/or cleaning any electrical parts. 6.2 Electrical wiring diagram for outdoor unit To avoid electrical shock hazard, be sure to disconnect power Warning before checking, servicing and/or cleaning any electrical parts.
7 Troubleshooting 7.1 Check before troubleshooting Warning: High-voltage will result in electric shock or death. Always cut off the power before checking and maintaining 7.1.1 Check power line To check whether the power line is connected correctly to the terminal No 1 which is on the terminal block of the indoor unit 7.1.2 Check unit wiring To check whether the inter-unit wires are connected correctly.
7.2 The air conditioner does not work 7.2.1 Leakage protector is open or fuse is burnt. A. Setting leakage protector to “ON”, it opens immediately (can not reset). There is possibility of ground fault. Check insulation resistance (The insulation resistance shall be more than 2MΩ). B.
7.2.3 Only outdoor unit does not work. Check the set Adjust the set 1. The set temperature is too high in cooling. temperature temperature 2. The set temperature is too low in heating. Measure the voltage between terminal No.1 and Outdoor unit No.2 on the terminal block (220-240V) is defective.
7.3.3 Only outdoor fan motor dos not run. Not rotate Check the fan rotation Check if foreign matter is in the fan cover. Measure the resistance of motor coil. Check if fan motor is broken or foreign matter in bearing. Check the capacitor of the fan motor.
7.4.2 Poor cooling or heating phenomena. Poor cooling Is the temperature Change the set temperature. (heating) set properly? performance The heating (cooling) Reduce heat (cool) source or change load is too large. the air conditioner with large power. 4-way reversing valve fails. Replace it Refrigerant is not enough.
8. Checking Electrical Components 8.1 Measure insulation resistance The insulation is in good condition if the resistance exceeds 2 MΩ. 8.1.1 Power supply wires Clamp the ground pins of the power plug with the lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires.
8.2 Checking continuity of fuse on PCB Ass'y Remove the PCB ass’ y from the electrical component box. Then pull out the fuse from the PCB ass’ y. (Fig. 5) Check for continuity using a multimeter as shown in Fig. 6 8.3 Checking motor capacitor Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor terminals as shown in Fig.
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