DC INVERTER MULTI VRF INSTALLATION
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The auxiliary drainage hose must be thermally insulated
管盖
冷凝水管
保温层
15) The long drainage hose may be fixed by using hanger bolts, thus to ensure a gradient
of 1/100 (PVC cannot be bent).
The spacing between the supports of horizontal pipe is 0.8-1.0m. Twisting will be caused and
thus air bag will be formed if the spacing is too high. Once the air bag is formed, the pump can
only compress the air bag no matter how forcible it pushes, but there is no flowing water, thus
resulting in abnormal water level. This will cause flooding of the ceiling.
16). If the air flow of indoor unit is high, this might cause negative pressure and result in return
suction of outdoor air. Therefore, U-type water trap shall be designed on the drainage
side of each indoor unit.
Install water trap as shown below
Install one water trap for each unit
Installation of water trap shall consider easy cleaning in the future.
Thermal insulation of
condensate pipe
Pipe cover
Indoor unit.
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