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1
Installation of outdoor
1 - 8 Refrigerant piping
1 - 8 - 9
Shutoff valve operation procedure
C
AUTION
Do not open the shutoff valve until 1-6 of "9-8 Checking of device and installation conditions" are completed. If the shutoff valve is left open without
turning on power, it may cause refrigerant to buildup in the compressor, leading to insulation degradation.
Opening shutoff valve
1
Remove the cap and turn the valve counterclockwise with the hexagon wrench (JISB4648).
2
Turn it until the shaft stops.
Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a backseat type. Always use the hexagon
wrench.
3
Make sure to tighten the cap securely.
Closing shutoff valve
1
Remove the cap and turn the valve clockwise with the hexagon wrench (JISB4648).
2
Securely tighten the valve until the shaft contacts the main body seal.
3
Make sure to tighten the cap securely.
* For the tightening torque, refer to the table on the bellow.
Tightening torque
SHUTOFF VALVE
SIZE
Liquid side
Gas side
Service port
Cap
Hexagon hole
Shaft
The main body seal
30
• Installation procedure
Shaft (valve body)
5.4 - 6.6
Hexagonal wrench
4 mm
27 - 33
Hexagonal wrench
10 mm
®
• VRV
Systems • Installation procedure
Tightening torque N-m (Turn clockwise to close)
Cap (valve lid)
Service port
13.5 - 16.5
11.5 - 13.9
36 - 44
11.5 - 13.9
Gas side accessory pipe
Flare nut
(1)
32.7 - 39.9
-
-
22 - 28
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