DC Inverter Multi
VRF Service Manual
123
6.2.7 Do not tie the condensate pipe and refrigerant pipe together.
6.2.8 To ensure smooth drainage of condensate, a vent hole shall be set at the highest point of drainage pipe.
6.2.9 Carry out water flow test and full water test after the pipe connection is completed. On one hand, check if the
drainage is smooth; on another hand, check the piping system for any leakage.
6.2.10 Steel sheath shall be provided to the pipe crossing the wall or slab. The pipe joint shall not be positioned within the
sheath. The steel sheath shall be ush with the wall surface or slab base, but 20mm higher than the slab base. The sheath
shall not affect the pipe gradient. The clearance between pipe and sheath shall be blocked by using exible inammable
materials. The sheath shall not be used as the supporting point of the pipe.
6.2.11The joint of thermal insulation materials must be adhered by using special glue and then wrapped with plastic tape
having a width not less than 5cm to avoid condensing.
6.2.12 Ensure a gradient over 1% when connecting the drainage pipe to the indoor unit.
Gradient over 1/100
6.2.13 When connecting the drainage pipe to the indoor unit, please x with the included pipe clamp and do not use glue
water, thus to ensure easy repair.
6.2.14 Installation requirements for auxiliary drainage pipe
Pipe clamp
Drainage PVC pipe
Unit drainage pipe
Drainage hose
The auxiliary drainage pipe must be thermally insulated:
Thermal insulation
of condensate pipe
Pipe cover
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