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Step 4: connect indoor and outdoor pipes
1. Remove the front side plate or handle.
screw
handle
2. Remove the screw cap of valve and aim
the pipe joint at the bellmouth of pipe.Die
Überwurfmutter per Hand festziehen.
gas pipe
liquid pipe
liquid
valve
gas valve
3. Pretightening the union nut with hand.
yellow-
green
union nut
pipe joint
4. Tighten the union nut with torque wrench by
referring to the sheet below.
Hex nut diameter
Φ 6
Φ 9.52
Φ 12
Tightening torque (N
.
m)
Φ 16
Φ 19
30~40
60~65
4
5
~55
70~75
15~20