Electrical installation
Installation instructions geoTHERM 0020051574_04
49
7
7.3.2
Duel-circuit supply heat pump rate
(electric wiring diagram 2)
L3 L2 L1
N
PE
L3 L2 L1
N
PE
1
2 N PE
L
N
PE
L
N
PE
L3
N
PE
L2 L1
L3
N
S
S
400 V
50 Hz
1
+
2
230 V
50 Hz
3
7.5
Duel-circuit supply VWS heat pump rate
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
400 V
50 Hz
1
2
230 V
50 Hz
3
7.6 Duel-circuit supply VWW heat pump rate
Key
Pump (brine circuit pump)
Compressor
Controller
In this case, the heat pump is operated using two electricity
rates (two consumption meters). A permanent standard rate
electricity supply (
2
) ensures the operation of the
auxiliary
consumers (circulation pumps, controllers, etc.)
across a
separate electricity meter. The additional
reduced rate
electricity (1) for the compressor
is supplied via a second
electricity meter and can be suspended by the power com-
pany at peak times.
The duration and frequency of the lock-out is determined
by the power company or must be clarified with them.
>
Remove the bypass pipework (dashed lines,
3
).
>
Connect the permanent electricity supply to the stand-
ard rate mains supply (
2
).
