To Connect The Refrigerant Piping To The Outdoor Unit - Daikin RXYSCQ4TMV1B Installer And User Manual

6 Installation
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 Seal
To open the stop valve
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.
Result: The valve is now open.
2
3
1
4
To close the stop valve
1 Remove the stop valve cover.
2 Insert a hexagon wrench into the stop valve and turn the stop
valve clockwise.
3 When the stop valve cannot be turned any further, stop turning.
Result: The valve is now closed.
Closing direction:
To handle the stop valve cover
▪ The stop valve cover is sealed where indicated by the arrow. Take
care not to damage it.
▪ After handling the stop valve, make sure to tighten the stop valve
cover securely. For the tightening torque, refer to the table below.
▪ Check for refrigerant leaks after tightening the stop valve cover.
Installer and user reference guide
18
To handle the service port
▪ 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.
Tightening torques
Stop valve Tightening torque N•m (turn clockwise to close)
size (mm)
Valve body Hexagonal
wrench
Ø9.5 5.4~6.6 4 mm
Ø15.9 13.5~16.5 6 mm
6.4.8 To connect the refrigerant piping to the
outdoor unit
NOTICE
Be sure that the field installed piping does not touch other
pipes, the bottom panel or side panel. Especially for the
bottom and side connection, be sure to protect the piping
with suitable insulation, to prevent it from coming into
contact with the casing.
1 Do the following:
▪ Remove the service cover. See
unit" on page 15.
▪ Remove the piping intake plate (a) with screw (b).
a
b
2 Choose a piping route (a, b or c).
a c
b
3 If you have chosen the downwards piping route:
▪ Drill (a, 4×) and remove the knockout hole (b).
▪ Cut out the slits (c) with a metal saw.
a b
4× Ø6 mm
c c
4 Do the following:
▪ Connect the liquid pipe (a) to the liquid stop valve.
▪ Connect the gas pipe (b) to the gas stop valve.
Shaft
Cap (valve Service
lid) port
13.5~16.5 11.5~13.9
22.5~27.5
"6.2.2 To open the outdoor
RXYSCQ4+5TMV1B
VRV IV-S system air conditioner
4P404224-1 – 2015.03