Daikin EBSX-D - To Connect the Backup Heater to the Main Unit

6 Electrical installation
Installation manual
25
EBSH/X(B)11+16P50D
Daikin Altherma 3 R ECH₂O
4P759878-1 – 2024.01
Model (power
supply)
Connections to backup heater power
supply
*3V (3V: 1N~230V)
1N~, 50 Hz
230 V AC
SWB2
Q1DI
NL
1
2
3
4
F1B
20A
I I
X6M
Model (power
supply)
Connections to backup heater power
supply
*6V (6V: 1N~230V)
1N~, 50 Hz
230 V AC
SWB2
Q1DI
NL
X6M
1
2
3
4
F1B
32A
I I
*9W (3N~400V)
3N~, 50 Hz
400 V AC
SWB2
Q1DI
L1 L2 L3 N
X6M
1
2
3
4
5
6
F1B
20A
II I
F1B Overcurrent fuse (field supply). Recommended fuse:
tripping class C.
Q1DI Earth leakage circuit breaker (field supply)
SWB Switch box
X6M Terminal (field supply)
6.3.4 To connect the backup heater to the main
unit
Wires: The connection cables are already connected to the
option backup heater EKECBU*.
[9.3] Backup heater
1 Open the following (see "4.2.1To open the indoor unit"[413]):
1 User interface panel
1
3
5
2
4
2 Switch box
3 Switch box cover
4 Top cover
5 Side panel
2 Connect both connection cables from the backup heater
EKECBU* to the appropriate connectors as shown in the
illustration below.