haier AE122BCAAA (H2EM-18H03) - Manual (Page 23)

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Permitted length and fall of connecting pipe
Depending on the outdoor units, for details, please refer to the attahed manual of outdoor unit.
Material and dimension of connecting pipe
Perform connection of flared pipe to connect all the refrigerant pipes.
Connection of refrigerant pipe
Two spanners operation
22
Material of connecting pipe
Gas side Dimension of connecting pipe
( ) mm
6.35
External diameter of
conneting pipe(mm)
12.7
Installation procedure
Install indoor unit
warning
During installation, if refrigerant leakage occurs, please immediately take ventilation measure.
If the refrigerant gas meet the fire, it may generate poisonous gas.
After finishing installation work, please make sure there is no refrigerant leakage. If the leaked
refrigerant gas meet heater and oven, etc. fire sources, it may generate poisonous gas.
Phospor deoxy copper seamless pipe used in air conditioner (TP )
2
Liquid side
The connection of indoor unit connecting pipe must be performed by
two spanners.
For installation torque, please refer to the following table.
Tightening torque (N.m) Installation torque (N.m)
6.35 13.7(1.4kgf.m) 11.8(1.2kgf.m)
53.9(5.5kgf.m) 49.05(5.0kgf.m) 12.7