Gree SUPER+ MULTI ULTRA Series Service Manual page 117

6) Do not tie the condensate pipe and refrigerant pipe together.
7) To ensure smooth drainage of condensate, a vent hole shall be set at the highest point of drainage pipe.
8) 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.
9) 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 flush 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 flexible inflammable materials. The sheath shall not be used as the supporting
point of the pipe.
10) The 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.
11) Ensure a gradient over 1% when connecting the drainage pipe to the indoor unit.
12) When connecting the drainage pipe to the indoor unit, please fix with the included pipe clamp and do
not use glue water, thus to ensure easy repair.
13) Installation requirements for auxiliary drainage pipe
The auxiliary drainage pipe must be thermally insulated:
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Service Manual
111 INSTALLATION