Fujitsu Airstage J-IVS AJ 040LCLDH Series Design & Technical Manual page 700

Handling precautions for the valves
• Mounted part of blank cap is sealed for protection.
• Fasten blank cap tightly after opening valves.
Operating the valves
• Use a hexagon wrench (size: 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
3-1. Piping to outdoor unit
Blank cap
mm (in)
Ø6.35 (1/4)
Ø9.52 (3/8)
Ø12.70 (1/2)
Ø15.88 (5/8)
Ø19.05 (3/4)
Opening direction
Liquid pipe
Tightening torque
Hexagon wrench
Seal (blank cap installation portion)
Gas pipe
- (06-40) -
N·m
20 to 25
20 to 25
25 to 30
30 to 35
35 to 40
3. Piping connection