Daikin VRV IV Installer And User Reference Manual page 87

To open the stop valve
RXMLQ8 + RXYLQ10~14T7Y1B*
VRV IV system air conditioner
4P543427-1A – 2020.10
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.
1 Remove the stop valve cover.
2 Insert a hexagon wrench into the stop valve and turn the stop valve
counterclockwise.
3 When the stop valve cannot be turned any further, stop turning.
4 Install the stop valve cover.
Result: The valve is now open.
To fully open the Ø19.1~Ø25.4 mm stop valve, turn the hexagonal wrench until a
torque between 27 and 33 N•m is achieved.
Inadequate torque may cause leakage of refrigerant and breakage of the stop valve
cap.
NOTICE
Pay attention that mentioned torque range is applicable for opening
Ø19.1~Ø25.4 mm stop valves only.
18 Piping installation
|
Installer and user reference guide
87