Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual page 94

9 | Electrical installation
Installer reference guide
94
▪ demand that the equipment ONLY consumes a limited amount of electricity
during certain periods of time.
The indoor unit is designed to receive an input signal by which the unit switches
into forced off mode. At that moment, the unit compressor will not operate.
The wiring to the unit is different depending on whether the power supply is
interrupted or NOT.
Detail C1: Factory-mounted power supply cable
Wires: 3N+GND, OR 1N+GND
Maximum running current: Refer to name plate on unit.
Connect the factory-mounted power supply cable to a 1N~ or 3N~ power supply.
a
b
1N~
1 3
I I I
F1B
2 4
Q1DI
L N
1N~, 50 Hz, 230 V AC
a Factory-mounted power supply cable
b Field wiring
F1B Overcurrent fuse (field supply). Recommended fuse for 1N~: 4‑pole, 32 A fuse, C
curve. Recommended fuse for 3N~: 4‑pole, 16 A fuse, C curve.
Q1DI Earth leakage circuit breaker (field supply)
Detail C2: Preferential kWh rate power supply contact
Wires: 2×(0.75~1.25 mm²)
Maximum length: 50 m.
Preferential kWh rate power supply contact: 16 V DC detection (voltage
supplied by PCB). The voltage-free contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
Connect the preferential kWh rate power supply contact (S1S) as follows.
3N~
OR
5 7 1
I I
I
F1B
6 8 2
Q1DI
L1
3N~, 50 Hz, 400 V AC
3 5 7
I I
4 6 8
L2 L3 N
4P675765-1 – 2022.04
EWSAH/X06UD
Daikin Altherma 3 WS