Blowhole Setting; Drainage Test; Water Leakage Test; Water Discharge Test - Pioneer CB009GMFILCFHD Service Manual

Drainage pipe
Water flow
Water flow
Drain tee
Water flow
Branch pipe Water flow
Gas
Keep a certain degree
Main pipe
 The correct installation will not cause
converse water flow and the slope of the
branch pipes can be adjusted freely
 The false installation will cause converse
water flow and the slope of the branch pipe
cannot be adjusted.
6. Water storage pipe setting
 If the indoor unit has high extra static
pressure and without water pump to
elevate the condensate water, such as high
extra static pressure duct unit , the water
storage pipe should be set to avoid
converse flow or blow water phenomena.
Indoor unit
Plug
Water storage pipe
7. Lifting pipe setting of indoor unit with
water pump
 The length of lifting pipe should not exceed
the pump head of indoor unit water pump.
The drainage pipe should be set down

inclined after the lifting pipe immediately to
avoid wrong operation of water level switch.
 Refer the following picture for installation
reference.
Drainage pipe
Drainage pipe Drain tee
Water flow
Water flow
Water flow
Drain tee
Water flow
Water flow
Water flow
Gas
Water flow
Main pipe
Branch pipe
More than 50mm
More than 25mm
B
Flexible pipe 300mm
8.

Blowhole setting

 For the concentrated drainage pipe system,
there should design a blowhole at the
highest point of main pipe to ensure the
condensate water discharge smoothly.
 The air outlet shall face down to prevent dirt
entering pipe.
 Each indoor unit of the system should be
installed it.
 The installation should be considering the
convenience for future cleaning.
Indoor unit
Plug
9. The end of drainage pipe shall not
contact with ground directly.

12.5.3 Drainage test

12.5.3.1. 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.

12.5.3.2. 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.
68
Hanger
Down incline pipe
A:Length of horizontal pipe ≤ 150mm
B: Lift height ≤ the pump head of water pump
Blowhole
Indoor unit
Plug