Kaysun Zen On 2014, Service Manual

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Drainage pipe installation
64 Installation
other pipelines and ensure slope is straight.
6.2.2 Drainage pipe selection
The drainage pipe diameter shall not small than the drain hose of indoor unit
According to the water flow rate and drainage pipe slope to choose the suitable pipe, the water flow rate
is decided by the capacity of indoor unit.
Relationship between water flow rate and capacity of indoor unit
Capacity (x1000Btu) Water flow rate (l/h)
12 2.4
18 4
24 6
30 7
36 8
42 10
48 12
60 14
According to the above table to calculate the total water flow rate for the confluence pipe selection.
For horizontal drainage pipe (The following table is for reference)
PVC pipe
Reference value of inner
diameter of pipe (mm)
Allowable maximum water flow rate (l/h)
Remark
Slope 1/50 Slope 1/100
PVC25 20 39 27
For branch pipe
PVC32 25 70 50
PVC40 31 125 88
Could be used for confluence pipe PVC50 40 247 175
PVC63 51 473 334
Attention: Adopt PVC40 or bigger pipe to be the main pipe.
For Vertical drainage pipe (The following table is for reference)
PVC pipe
Reference value of inner
diameter of pipe (mm)
Allowable maximum water flow rate
(l/h)
Remark
PVC25 20 220
For branch pipe
PVC32 25 410
PVC40 31 730
Could be used for confluence pipe
PVC50 40 1440
PVC63 51 2760
PVC75 67 5710
PVC90 77 8280
Attention: Adopt PVC40 or bigger pipe to be the main pipe.
6.2.3 Individual design of drainage pipe system
The drainage pipe of air conditioner shall be installed separately with other sewage pipe, rainwater pipe
and drainage pipe in building.
The drainage pipe of the indoor unit with water pump should be apart from the one without water pump.
6.2.4 Supporter gap of drainage pipe
In general, the supporter gap of the drainage pipe horizontal pipe and vertical pipe is respectively
1m~1.5m and 1.5m~2.0m.
Each vertical pipe shall be equipped with not less than two hangers.
Overlarge hanger gap for horizontal pipe shall create bending, thus leading to air block.
Too long distance
Gas bag