To Connect The Backup Heater Power Supply - Daikin EPRA10EAV3 Installer's Reference Manual

9.3.3 To connect the backup heater power supply

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
A
3x
a
230 V AC , 6.3 A
1N~, 50 Hz,
L
1 2 3
N
B
A
B
X 5M
a Interconnection cable
b Power supply indoor unit
c Preferential power supply contact
3 Fix the cable with cable ties to the cable tie mountings. General information,
see "9.3.1 To connect the electrical wiring to the indoor
Backup heater type
EKECBU*3V
EKECBU*6V
EKECBU*9W
[9.3] Backup heater
WARNING
The backup heater MUST have a dedicated power supply and MUST be protected by
the safety devices required by the applicable legislation.
F2B
Q DI 2
5
1 2
6
3 4
c
a b
3 4
1
X1M
1 2 3 4 5 6
Power supply
1N~ 230 V
1N~ 230 V
3N~ 400 V
9 Electrical installation
|
c
b
4 3
S1S
3x
4
unit" [ 117].
Wires
(2+GND)×2.5 mm²
(minimum)
(2+GND)×4 mm²
(minimum); ONLY
flexible cords
(4+GND)×2.5 mm²
(minimum)
Installer reference guide
121