TCL U-MATCH-R32 Series, Руководство по обслуживанию

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TCL U-MATCH-R32 SERIES DC INVERTER AIR CONDITIONERS SERVICE MANUAL
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2.5 Drainage Test
2.5.1 Water Leakage Test
After finishing the construction of drainage pipe system, fill the pipe with water and keep it for 24
hours to check whether there is leakage at joint section.
2.5.2 Water Discharge Test
1. Natural drainage mode(the indoor unit with outdoor drainage pump)
Infuse above 600ml water through water test hole slowly into the water collector, observe whether the
water can discharge through the transparent hard pipe at drainage outlet.
2. Pump drainage mode
2.1 Disconnect the plug of water level switch, remove the cover of water test hole and slowly
infuse about 2000ml water through the water test hole, be sure that the water will not touch the motor
of drainage pump.
2.2 Power on and let the air conditioner operate for cooling. Check operation status of drainage
pump, and then connect the plug of water level switch, check the operation sound of water pump and
observe whether the water can discharge through the transparent hard pipe at drainage outlet. (In
light of the length of drainage pipe, water shall be discharged about 1 minute delayed)
2.3 Stop the operation of air conditioner, power off the power supply and put the cover of water
test hole back to the original place.
a. After stopped the air conditioner 3 minutes, check whether there is anything abnormal. If
drainage pipes have not been distributed properly, over back-flow water shall cause the flashing of
alarm indicator at remote-controlled receiving board and even water shall run over the water collector.
b. Continuously infusing water until water level alarmed, check whether the drainage pump could
discharge water at once. If water level does not decline under warning water level 3 minutes later, it
shall cause shutdown of unit. When this situation happens, the normal startup only can be recovered
by turning down power supply and eliminating accumulated water.
Note: Drain plug at the main water-containing plate is used for eliminating accumulated water in
water-containing plate when maintaining air conditioner fault. During normal operation, the plug shall
be filled in to prevent leakage.
2.6 Refrigerant Pipe Installation
2.6.1 Pipe Dimension and Ways of Installation
Outdoor pipe dimension and ways of install (in sequence of cooling capacity).
Pipe Material Copper Pipe for Air Conditioner
Model 18K-24K 30K-55K
Size(mm)
Liquid side
Φ
6.35(7/16inch)
Φ
9.52(5/8inch)
Gas side
Φ
12.7(3/4inch)
Φ
15.88(7/8inch)
NOTE : Ensure that the length of the refrigerant pipe, the number of bends, and the drop height
between the indoor and outdoor units meets the requirements