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C. Pipe spec and the torque
Diameter (mm) Torque(N
.
m)
Ø6.35 16~20
Ø9.52 40~50
Ø12.7 40~50
Ø15.88 90~120
Ø19.05 100~140
Not less than Ø22.22
No requirement,
due to braze connector
Branch pipe
Branch pipe selection:
Total indoor capacity (100W)
Model(optional)
3 pipes 2 Pipes
X < 335 FQG-R335A FQG-B335A
335 ≤ X < 506 FQG-R506A FQG-B506A
506 ≤ X < 730 FQG-R730A FQG-B730A
730 ≤ X < 1350 FQG-R1350A FQG-B1350A
X ≥ 1350 FQG-R2040A FQG-B2040A
Outdoor unit type
The master unit will choose the closest one to the 1st branch pipe.
Note:
1. When connecting the gather pipe and the outdoor, please pay attention to the outdoor pipe dimension.
2. When adjusting the diameter among gather pipes and among the units, please must execute at the branch pipe
side.
3. Please install the gather pipe(gas/liqiud side) in horizontal or vertical direction.
4. When welding with hard solder, please must blow nitrogen. If not, a number of oxide will be produced and cause
heavy damage.Besides,to prevent water and dust into the pipe, please make the brim as outer roll.
Adhesive side
Prepare on eld
Seal the connection and wrap the
heat insulator with adhesive tape
Cut off pipe with the cutter
Floor
Floor
Right
Horizontal
Cut off at the middle
Wrong
B. Indoor unit
Model
Gas pipe side Liquid pipe side
Diameter
(mm)
Connecting
method
Diameter
(mm)
Connecting
method
07 Ø9.52
Flared
Ø6.35
Flared
09 Ø9.52 Ø6.35
12 Ø12.7 Ø6.35
16 Ø12.7 Ø6.35
18 Ø12.7 Ø6.35
24 Ø15.88 Ø9.52
28 Ø15.88 Ø9.52
30 Ø15.88 Ø9.52
38 Ø15.88 Ø9.52
48 Ø15.88 Ø9.52
Note:
AS072 AS092 gas pipe / liquid pipe: Ø12.7mm/6.35mm;
AS182 gas pipe / liquid pipe: Ø15.88/9.52mm
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