In the case of AOU60RLAVM
● It is necessary to change a connection pipe diameter by using Reducer.
(1) Reducer must be brazed outside of the outdoor unit.
(2) Distance between 3-Way-Valve and Reducer ≤ 3 ft. (1m)
(3) The part of Reducer do insulation processing after brazing .
Brazing
Reducer
(accessory)
Connection pipe (Gas)
(Pipe outside dia.: 3/4 in. (19.05 mm))
Connection pipe (Gas)
(Pipe outside dia.: 5/8 in. (15.88mm))
3 ft. (1m)
or less
Example. Case of front connection
z
Handling precautions for the valves
● Mounted part of Blank cap is sealed for protection.
● Fasten blank cap tightly after opening valves.
Blank cap
[in. (mm)]
Tightening torque
[N·m]
1/4 (6.35) dia. 20 to 25
3/8 (9.52) dia. 20 to 25
1/2 (12.70) dia. 25 to 30
5/8 (15.88) dia. 30 to 35
3/4 (19.05) dia. 35 to 40
Operating the valves
● Use a hexagon wrench (size 3/16 in. (4 mm)).
● Opening (1) Insert the hexagon wrench into the valve shaft, and turn it counterclockwise.
(2) Stop turning when the valve shaft can no longer be turned. (Open position)
● Closing (1) Insert the hexagon wrench into the valve shaft, and turn it clockwise.
(2) Stop turning when the valve shaft can no longer be turned. (Closed position)
Opening direction
Opening direction
Hexagon wrench
Liquid pipe
Gas pipe
Seal (blank cap installation portion)
- (06 - 30) -
SYSTEM
DESIGN
SYSTEM
DESIGN
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