Using The Stop Valve And Service Port - Daikin RXYSQ4T8VB Series Installer And User Reference Manual

18.2.7 Using the stop valve and service port

To handle the stop valve
To open/close the stop valve
To handle the stop valve cover
RXYSQ4~6T8V/YB
VRV IV-S system air conditioner
4P482277-1B – 2020.10
Take the following guidelines into account:
▪ Make sure to keep all stop valves open during operation.
▪ The gas and liquid stop valves are factory closed.
▪ The figures below show the name of each part required in handling the stop
valve.
a
b
c
d
a Service port and service port cover
b Stop valve
c Field piping connection
d Stop valve cover
a b
e d c
a Service port
b Stop valve cover
c Hexagon hole
d Shaft
e Valve seat
▪ Do NOT apply excessive force to the stop valve. Doing so may break the valve
body.
Counterclockwise to open
Clockwise to close
Result: The valve is now open/closed.
▪ The stop valve cover is sealed where indicated by the arrow. Do NOT damage it.
▪ After handling the stop valve, tighten the stop valve cover securely, and check for
refrigerant leaks. For the tightening torque, refer to the table below.
18 Piping installation
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Installer and user reference guide
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