haier AU092AABHA - Manual (Page 21)

20
INSTALLATION MANUAL FOR INDOOR UNIT
Material of connection pipe and thermal insulation
Foam polyethylene pipe, thickness over 10mm
Stiff PVC pipe VP 20mm (inside diameter) Material of connection pipe
Material of thermal insulation
Warning !
Perform with two spanners
Depenbing on the outdoor unit.For details,please refer to the operation manual
attached with outdoor unit.
The permitted length and fall of connection pipe
When performing the connection work of flare nut,
connect all the refrigerant pipe.
When connecting the connection pipe of indoor
unit, must use two spanners to perform.
For the installation torque, please refer the
following Table.
Connection of refrigerant pipe
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
.
Material of
connection pipe
Gas side
Liquid side Dimension of
connection pipe 12.7
6.35
Phosphorus oxidized copper seamless pipe
(TP2) for air conditioner
External diameter of
connection pipe (mm)
Installation torque (N.m) Add to installation torque (N.m)
6.35 11.8(1.2kgf.m) 13.7(1.4kgf.m)
12.7 49.0(5.0kgf.m) 53.9(5.5kgf.m)
Material and dimension of connection pipe
Confirm drainage
Perform test run to insure the condition of drainage, the connection part
of the connection should not leak water. The confirmation must be
performed even if install in winter.