6 Installation
Installer reference guide
24
RZA200+250D7Y1B
Sky Air Advance-series
4P573383-1 – 2019.04
Wire type Installation method
Single-core wire
a Curled single-core wire
b Screw
c Flat washer
Stranded conductor
wire with round
crimp-style terminal
a Terminal
b Screw
c Flat washer
O Allowed
X NOT allowed
Tightening torques
Item Tightening torque (N•m)
M4 (X1M) 1.2~1.8
M4 (earth) 1.2~1.4
M5 (X1M) 2.0~3.0
M5 (earth) 2.4~2.9
NOTICE
If limited space is available at the wire terminal, use
bended crimp-style ring terminals.
6.8.5 Specifications of standard wiring
components
Component RZA200 RZA250
Power supply
cable
MCA
(a)
18.6A 19.9A
Voltage range 380~415V
Phase 3N~
Frequency 50Hz
Wire sizes Must comply with applicable
legislation
Interconnection cables H05VV-U4G2.5
Recommended field fuse 20A
Earth leakage circuit breaker Must comply with applicable
legislation
(a)
MCA=Minimum circuit ampacity. Stated values are
maximum values (see electrical data of combination with
indoor units for exact values).
6.8.6 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. See "6.2.2 To open the outdoor
unit"[413].
2 Strip insulation (20mm) from the wires.
a Strip wire end to this point
b Excessive strip length may cause electrical shock or
leakage.
3 Connect the interconnection cables and power supply as
follows:
a
c
d
e
3N~ 50 Hz
380-415 V
L1 L2 L3
L1 L2 L3
N
b
a
a
a
I, II, III, IV Pair, twin, triple, double twin
M, S Master, slave
a Interconnection cables
b Power supply cable
c Earth leakage circuit breaker
d Fuse
e User interface
INFORMATION
Some indoor units may need a separate power supply in
order to guarantee maximum capacity. See the installation
manual of the indoor unit.
a Interconnection cable
b Power supply cable
c Earth