To Remove The Pinched Pipes - Daikin RDXYQ5T8V1B Installer And User Manual

To handle the service port
Tightening torques

16.2.6 To remove the pinched pipes

RKXYQ5T8+8T7Y1B + RDXYQ5T8+8T7V1B
VRV IV heat pump for indoor installation
4P499898-1B – 2021.12
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.
▪ Always use a charge hose equipped with a valve depressor pin, since the service
port is a Schrader type valve.
▪ After handling the service port, make sure to tighten the service port cover
securely. For the tightening torque, refer to the table below.
▪ Check for refrigerant leaks after tightening the service port cover.
Stop valve size
(mm)
Valve body
Ø9.5 5.4~6.6
Ø12.7 8.1~9.9
Ø19.1 27.0~33.0
WARNING
Any gas or oil remaining inside the stop valve may blow off the pinched piping.
Failure to observe the instructions in procedure below properly may result in
property damage or personal injury, which may be serious depending on the
circumstances.
Use the following procedure to remove the pinched piping:
1 Make sure that the stop valves are fully closed.
Tightening torque N•m (turn clockwise to close)
Shaft
Hexagonal
wrench
4 mm
8 mm
16 Piping installation
|
Cap (valve lid) Service port
13.5~16.5 11.5~13.9
18.0~22.0
22.5~27.5
Installer and user reference guide
73