Haier AD242ALEAA Operation Manual And Installation Manual page 29

Installation Procedure
Installing the suspension screw
Use M8 or M10 suspension screws (4, prepared in the field) (when the suspension screw height exceeds 0.9m, M10 size is the
only choice). These screws shall be installed as follows with space adapting to air conditioner overall dimensions according to
the original building structures.
Wooden structure
A square wood shall be supported by the beams and
then set the suspension screws.
Square wood
Suspension screw
Original concrete slad
Use hole hinge, hole plunger or hole bolt.
Hanging of the indoor unit
Fasten the nut on the suspension screw and then hang the suspension screw in the T slot of the suspension part of the unit.
Aided with a level meter, adjust level of the unit within 5mm
Installation Procedure
Caution
In installation, if there is refrigerant gas leakage, please take ventilation measures
immediately. The refrigerant gas will generate poisonous gas upon contacting fire.
After installation, please verify that there is no refrigerant leakage. The leaked
refrigerant gas will produce poisonous gas when meeting fire source such as
heater and furnace etc.
Pipe material
Phosphorus deoxidized copper seamless pipe (TP2M) for air conditioner.
Allowable pipe length and drop
These parameters differ according to the outdoor unit. See the instruction manual attached with the outdoor unit for details.
Supplementary refrigerant
The refrigerant supplementation shall be as specified in the installation instructions attached with the outdoor unit.
The adding procedure shall be aided with a measuring meter for a specified amount of supplemented refrigerant.
Note:
Overfilling or underfilling of refrigerant will cause compressor fault. The amount of the added refrigerant shall be as specified in
the instructions.
Connection of refrigerant pipe
Conduct flared connection work to connect all refrigerant pipes.
The connection of indoor unit pipes must use double spanners.
The installing torque shall be as given in the following table.
Wall thicknessof connection pipe 0.8mm
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.
New concrete slab
To set with embedded parts, foundation bolts etc.
Beam
Knife embedded part Guide plate embedded part Pipe suspension foundation bolt
Steel reinforcement structure
Use steel angle or new support steel angle directly.
23
Hanging bolt
Support steel angle
Suspension screw
Pipe size (unit :mm)
Model
122, 182
242
Connecting pipe Installing torque
O.D.(mm) (N-m)
6.35 11.8 (1.2kgf-m)
9.52 24.5 (2.5 kgf-m)
12.70 49.0 (5.0 kgf-m)
15.88 78.4 (8.0 kgf-m)
Air Duct
Iron reinforcement
Foundation bolt
Refrigerant Pipe
Gas side Liquid side
12.70 6.35
15.88 9.52
Double-spanner
operation