39
Plug
sXF
Terminals
Function
Explanation
224.4
r
2.
Instantaneous heating water heater
control, stage 2
Connection values:
■
Output: 10 W
■
Voltage: 230 V~
■
Max. control current: 4(2) A
224.7
Connection values:
■
Output: 100 W
■
Voltage: 230 V~
■
Max. control current: 4(2) A
■
Circulation pump for DHW reheat-
ing
or
■
Immersion heater control:
For connection, see drawing in
chapter "Immersion heater".
Instantaneous heating water heater
Type AWB/AWB-M: Accessories
Installation instructions, instantaneous heating
water heater
Control and power circuit of the instantaneous heating
water heater
211.3
224.4
X2.N
N
L3
L2
L1
?
!
?
A
B
Fig. 38
A
Instantaneous heating water heater
B
Connection to the main PCB and expansion PCB
211.3 Stage 1
224.4 Stage 2
Immersion heater EHE 400 V~
224.7
X2.N
N
L3
L2
L1
?
B
A
Fig. 39
A
Immersion heater EHE, power supply 3/N/PE
400 V/50 Hz
B
Terminals of the heat pump control unit
Immersion heater 230 V~ (on site)
224.7
X2.N
N
L1
L1
L1
?
B
A
N N
Fig. 40
A
Immersion heater, power supply 1/N/PE
230 V/50 Hz
B
Terminals of the heat pump control unit
Installation sequence
Electrical connection
(cont.)
5790 931 GB
Installation
