Electrical installation
50
Installation instructions geoTHERM 0020051574_04
7
>
Connect the standard rate electricity supply to the
reduced rate mains supply (
1
).
>
Connect the contact of the control system signal receiver
to terminal 13 “EVU” (energy supplier) (
¬
Fig.
7.18
).
7.3.3
Connecting the external heating circuit
pump
L3 L2 L1
N
PE
L3 L2 L1
N
PE
1
2 N PE
S
S
L
N
PE
L3
N
PE
L2 L1
L3
N
L
N
PE
U
max
= 230V
I
max
= 2 A
1
7.7 Connecting the external heating circuit pump VWS
L3 L2 L1
N
PE
L3 L2 L1
N
PE
L3 L2 L1
N
PE
L
N
PE
L
N
PE
L3
N
PE
L2 L1
L3
N
U
max
= 230V
I
max
= 2 A
1
7.8 Connecting the external heating circuit pump VWW
Key
Pump (heating circuit pump)
>
Connect the external, heating circuit pump (to be fitted
on-site) with I
max
= 2 A and U
max
= 230 V
1
. If these values
are exceeded, install a relay/circuit breaker that is to be
fitted on-site and switch the pump using this.
