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Electrical installation
Installer and user reference guide
110
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
Details – Remote low noise switch
NOTICE
Low noise switch
. If you want to remotely turn ON/OFF low noise operation, you
must install a low noise switch. Use a voltage-free contact for microcurrent (≤1 mA,
12 V DC).
Low noise switch
Mode
OFF
Normal mode
ON
Low noise mode
Wiring low noise switch:
Wiring
Only use harmonised wire providing
double insulation and suitable for the
applicable voltage.
2-cord cable
0.75~1.25 mm²
Maximum wiring length
130 m
16.5.2 High voltage wiring – Outdoor unit
Connections/routing/fixing
3N~ 50 Hz
380-415 V
L1 L2 L3
L1 L2 L3 N
N
X1M
PE
c
b
a
d
a
d/e/f/g
e
f
X4M
g
C C1 W1 R P1 P2
X4M
X1M
PE
1
2
X1M
Power supply:
a: Power supply cable
b: Overcurrent fuse
c: Earth leakage circuit breaker
PE
Protective earth (screw)
X4M
Output signals:
d: Caution
e: Warning
f: Run
g: Operation