Haier AD24SS1ERA(N)(P) - Vacuum Creation and Gas Leakage Detection; Drain Pipe Installation

The notch upward(Attached detail view)
Indoor unit
Subsidiary insulation tube
Field piping side
The insulating material at gas side shall be resistant to a temperature
above 120 C
The indoor unit pipe connection part shall be insulated.
Refrigerant Pipe
Drain Pipe
CAUTION
Drain socket
Main unit
VP(field purchased)
Pipe cover(large)
[for insulation]
(accessory)
VP(field purchased)
Pipe cover
[for insulation]
(field purchased)
Drain hose
(accessory)
Pipe cover(small)
[for insulation]
(accessory)
Clamp
(accessory)
Adhesion
For unit with water pump
For unit without water pump
15
Installation Procedure
Open all valves
Gas leakage detection
Insulation treatment
Open all the valves on the outdoor unit.
Check with a leakage detector or soap water if there is gas leakage at the pipe connections and bonnets.
Conduct insulation treatment on both the gas side and liquid side of pipes respectively.
During cooling operation, both the liquid and gas sides are cold and thus shall be
insulated so as to avoid dew generation.
In order to drain water normally, the drain pipe shall be processed as specified in the installation manual and shall be thermal
insulated to avoid dew generation. Improper hose connection may cause indoor water leakage.
Requirements
The indoor drain pipe shall be thermal insulated.
The connection part between the drain pipe and
the indoor unit shall be insulated so as to prevent
dew generation.
The drain pipe shall be slant downwards (greater
than 1/100). The middle part shall not be of S type
elbow, otherwise abnormal sound will be produced.
The horizontal length of the drain pipe shall be less than 20 m. In case of
long pipe, supports shall be provided every 1.5 _ 2m to prevent wavy form.
Central piping shall be laid out according to the right figure.
Take care not to apply external force onto the drain pipe connection part.
For unit with water pump drain pipe use hard PVC general purpose pipe
VP which can be purchased locally. When connecting, insert a PVC pipe
end securely into the drain socket before tightening securely using the
attached drain hose and clamp. Adhesive must not be used for connection
of the drain socket and drain hose (accessory).
Pipe and insulation material
Rigid PVC pipe VP20 mm (internal diameter)
Foamed PE with thickness above 7 mm
Pipe
Insulation
Wall
Outside
Slant
Drain pipe (supplied
by the user)
VP30
To the largest (app. 10cm)
Down slope above 1/100
S type elbow
Installation Procedure
Creating vacuum
With a vacuum pump, create vacuum from the stop valve of the outdoor unit. Emptying with refrigerant sealed in the outdoor
unit is absolutely forbidden.
1.5m~2m
Support
Insulation (supplied by the user)
Down slope above 1/100