Heating Circuit Pump 400 V - Viessmann EM-M1 Installation And Service Instructions Manual

Connecting the heating circuit pump
Pumps without switching input
N L
C
L N
B
Fig. 9
Heating circuit pump
A
Plug on the mixer extension kit
B sÖ
Contactor
C
Separate power supply (observe manufacturer's
D
instructions)

Heating circuit pump 400 V~

L1 L2 L3 N PE
N L
C
B
M
A
3~
Fig. 10
Heating circuit pump
A
Plug on the mixer extension kit
B sÖ
Contactor
C
(cont.)
D
L N
L N PE
A
Specification for switching the contactor:
Rated voltage
Rated current
Recommended connecting
cable
Specification for switching the contactor:
Rated voltage
Rated current
Recommended connecting
cable
Installation sequence
230 V∼
1 A
2
H05VV-F3G 0.75 mm
or
H05RN-F3G 0.75 mm 2
230 V∼
1 A
2
H05VV-F3G 0.75 mm
or
H05RN-F3G 0.75 mm 2
11