Connecting The Electrical Wiring; Field Wiring: Overview; Guidelines When Knocking Out Knockout Holes; Guidelines When Connecting The Electrical Wiring - Daikin RXYSQ6T7Y1B9 Installation And Operation Manual

5 Installation
2 Fix the label on the inside of the outdoor unit near the gas and
liquid stop valves.
5.7

Connecting the electrical wiring

5.7.1

Field wiring: Overview

Field wiring consists of power supply (always including earth) and
indoor-outdoor communication (= transmission) wiring.
Example:
380-415 V
3N~ 50 Hz
a b
c
Y1
F1/F2
(16 V)
F1/F2
a Main switch
b Earth connection
c Power supply wiring (including earth) (sheathed cable)
F1/F2 Transmission wiring (sheathed cable)
Y1 Outdoor unit
d Indoor unit
e User interface
5.7.2 Guidelines when knocking out knockout
holes
NOTICE
Precautions when making knockout holes:
▪ Avoid damaging the casing.
▪ After making the knockout holes, we recommend you
remove the burrs and paint the edges and areas
around the edges using repair paint to prevent rusting.
▪ When passing electrical wiring through the knockout
holes, wrap the wiring with protective tape to prevent
damage.
a b
a Knockout hole
b Burr
c Sealant etc.
5.7.3 Guidelines when connecting the electrical
wiring
Tightening torques
Wiring Screw size
Power supply wiring
(power supply +
shielded ground)
Transmission wiring
Installation and operation manual
14
220-240 V
1~ 50 Hz
d
(16 V)
e
c
Tightening torque
(N•m)
M5 2.2~2.7
M3.5 0.8~0.97
5.7.4 To connect the electrical wiring on the
outdoor unit
NOTICE
▪ Follow the wiring diagram (delivered with the unit,
located at the inside of the service cover).
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
1 Remove the service cover.
2 Connect the transmission wiring as follows:
X2M
TO IN/D TO OUT/D
F1 F2
a
b
F1 F2
a Use the conductor of sheathed wire (2 wire) (no polarity)
b Terminal board (field supply)
WARNING
You must use shielded wire and connect the earth to the
transmission terminal (X2M).
A B C F1 F2 F1 F2
TO IN/D TO OUT/D
C/H SELECTOR
UNIT
UNIT
a
a Earth
3 Connect the power supply as follows:
3N~ 50 Hz
380-415 V
L1 L2 L3
a
b
c
L1 L2 L3 N
a Earth leakage circuit breaker
b Fuse
c Power supply cable
4 Fix the cables (power supply and transmission wiring) with
cable ties.
F1 F2 F1 F2
F1 F2 F1 F2
X1M
RXYSQ6T7Y1B9
VRV IV-S system air conditioner
4P397285-1B – 2016.03