Kaysun Zen On 2014 Service Manual - page 71
Insulation Work
Installation
65
6.2.5 The horizontal pipe layout should avoid converse flow or bad flow
Drainage pipe
Water flow
Drainage pipe
Drainage pipe
Drain
tee
Drain
tee
Water flow
Water flow
Water flow
Water flow
Water flow
Water flow
Water flow
Water flow
Drain
tee
Branch pipe
Water flow
Water flow
Keep a certain degree
Branch pipe
Gas
Gas
Main pipe
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 can not be
adjusted.
6.2.6 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
More than 50mm
More than 25mm
Plug
Water storage pipe
6.2.7 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.
Pump head of big four way cassette: 750mm
Pump head of compact four way cassette: 500mm
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.