Daikin RXYSQ5T7V1B, Installation And Operation Manual

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5 Installation
Installation and operation manual
10
RXYSQ4~Y1B
VRV IV-S system air conditioner
4P397284-1 – 2015.05
1
2
3
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.
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
size (mm)
Tightening torque N•m (turn clockwise to close)
Shaft
Valve body Hexagonal
wrench
Cap (valve
lid)
Service
port
Ø9.5 5.4~6.6 4 mm 13.5~16.5 11.5~13.9
Ø15.9 13.5~16.5 6 mm 22.5~27.5
5.3.2 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 (a) with screw (b).
▪ Remove the piping intake plate (c) with screw (d).
c
a
b
d
2 Choose a piping route (a, b, c or d).
a
b
c
d
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.
c c
b a
4× Ø6 mm
4 Do the following:
▪ Connect the liquid pipe (a) to the liquid stop valve.
▪ Connect the gas pipe (b) to the gas stop valve.
a
b
▪ In case of RXYSQ6: Connect the gas piping accessories (c,
c1, d, e), and cut them to the required length (e1). This is
necessary because the size of the gas stop valve is Ø15.9
while the piping between outdoor unit and first refrigerant
branch kit is Ø19.1.