6
Installation Manual
Fig.4-5
757
671
10HP
7KURXJKKROHîUHFWDQJXODUKROH
(Unit:mm)
When welding the refrigerant pipe, in order to prevent internal
oxidation of the pipe, nitrogen must be filled in. Otherwise, the
oxidized chips may block refrigerating circulatory system.
NOTE
When welding the refrigerant pipe, in order to prevent internal
oxidation of the pipe, nitrogen must be filled in. Otherwise, the
oxidized chips may block refrigerating circulatory system.
NOTE
Fig.4-8
Fig.4-9
Indoor unit
Size of outdoor unit pipes and piping methods
Model
Gas side
Liquid side
9
.+3
I
I
9.52
Allowed length of refrigerant pipe and height difference
Outdoor unit
0D[SLSHOHQJWK/P
Height dif
ference between indoor
XQLWDQGRXWGP
30m
50m
30m
Max. actual length of pipe (L)
Allowed
value
Height difference
between indoor
unit and outdoor
unit (H)
Outdoor
(upper)
Outdoor
(lower)
Max. height dif
ference
Indoor unit
Table.4-1
Table.4-2
.&RROLQJ
4.6 Size Of Outdoor Unit Pipes And Piping
Methods
Fig.4-6
Fig.4-7
steel
Snow protection
shed at the air inlet
Snow protection
shed at the air inlet
Snow protection
shed at the air outlet
Snow protection facilities must be installed in the snowfall areas.
(See the right figure) (in case the snow protection facilities are
incomplete, faults may occur). In order to prevent influence
caused by snow, set up raised pavilion, and install snow protec-
tion sheds at the air inlet and air outlet.
The refrigerant pipe adapter is located inside the outdoor unit.
So remove the right front board first.(three M5 screw)
When the pipe is connected from the front side, the pipe can be
led out through the right front board.
As shown in
Fig.4-7
, when brazing the indoor and outdoor
connective lines, pad a sheet metal under the valve avoids the
flame burning the chassis.
4.5 Refrigerant Pipe
