TCL TCC-09C2HRH/DV, Руководство по обслуживанию, Страница: 37 / 75

TCL Air Conditioner Service Manual
37
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 09K/12K 18K 24K
Size(mm)
Liquid
side
Φ
6.35(1/4inch)
Φ
6.35(1/4inch)
Φ
6.35(1/4inch)
Gas side Φ 9.52(3/8inch) Φ 9.52(3/8inch) Φ 12.7(1/2inch)
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
The maximum length and drop height based on models. (Unit: m/ft.)
2.6.2 Oil Traps
2.6.2.1 If the Indoor Unit Is Installed Higher than the Outdoor Unit:
If oil flows back into the outdoor unit's compressor, this might cause liquid compression or
deterioration of oil return. Oil traps in the rising gas piping can prevent this.
An oil trap should be installed every 10m (32.Sft) of vertical suction line riser.