Haier AD88NAHAAA Operation And Instruction Manual - page 35
INSTALLATION MANUAL FOR OUTDOOR UNIT
12.70
Base plate
Tube to the tight
Tube to the back
Access hole cover
M4
M6
Tube fixing
panel
Tube to the left
Tube to the left
Tube to the tight
outdoor unit
indoor unit
indoor unit
outdoor unit
34
(7)The maximum connnection pipe is 50 meters ,the maximum drop difference between indoor
unit and outdoor unit is 30 meters.
(8)It should installation the liquid check-ring and accumulator according to the outdoor unit and
indoor unit position.(see the attached diagram)
Diag1.outdoor unit below the indoor unit.
Diag2. Outdoor unit is above the indoor unit
Liuid check-ring
Accumulator (set 1
per 6 meters)
(6) During welding,the gas pipe valve must be cooled down with a wet cotton cloth.
During welding of the distribution pipe
1.In case of brazing weld of joint,nitrogen must be filled in the pipe to prevent oxidization.
2.The refrigerant pipe should be newly-made and clean.During installation,do not let water and other
substance into the pipe.
3.Use two spanners to tighten the connecting nut.One spanner will make loose connection.
The torque moment should conform to the specified value.(Refer to the below)
Tube diameter
(mm)
Torque moment for
pre-installation (N.m)
Torque moment for tightening the nut
Torque moment for
tightening up (N.m)