Daikin LREN8A7Y1B, Инструкция по установке и эксплуатации

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14 Electrical installation
Installation and operation manual
34
LREN8~12A7 + LRNUN5A7
CO ₂ ZEAS outdoor unit and capacity up unit
4P704141-1B – 2022.12
REMOTE
OFF ON
S1S
S1S Factory-equipped operation switch:
OFF: Unit operation turned OFF
ON: Unit operation turned ON
Remote: Unit controlled (ON/OFF) with remote operation
switch
Wiring remote operation 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
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
14.6.2 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
X4M
X1M
PE
h
1 2
h Wiring intake (knockout hole) for high voltage. See
"14.3 Guidelines when knocking out knockout
holes"
[ 4 32].
Details – Output signals
NOTICE
Output signals . The outdoor unit is provided with a
terminal (X4M class II construction) that can output 4
different signals. The signal is 220~240 V AC. The
maximum load for all signals is 0.5 A. The unit outputs a
signal in the following situations:
▪ C/C1: caution signal – connection recommended –
when an error occurs that does not stop unit operation.
▪ C/W1: warning signal – connection recommended –
when an error occurs that causes unit operation to
stop.
▪ R/P2: run signal – connection optional – when the
compressor is running.
▪ P1/P2: operation signal – connection mandatory –
when the expansion valves of the connected
showcases and blower coils are being controlled.
NOTICE
The operation output P1/P2 of the outdoor unit MUST be
connected to all expansion valves of the connected
showcases and blower coils. This connection is required
because the outdoor unit must be able to control the
expansion valves during startup (to prevent liquid
refrigerant from entering the compressor and to prevent
opening of the safety valve at the low pressure side of the
refrigeration cabinet).
Check on site that the expansion valve of the showcase or
blower coil can ONLY open when P1/P2 signal is ON.
Wiring output signals: