Installation instructions geoTHERM VWS/VWW 0020057444_01
26
6.4.1
Unblocked mains supply (Electroplan 1)
L3 L2 L1
N
PE
L3 L2 L1
L3
L3
L3 L2 L1
N
N N
N
PE
PE
PE
S
S A Z
N
PE L2
L1
L3
N
(VWW)
400 V / 50 Hz
1
+
+
+
Fig. 6.2 Unblocked mains feed (supplied configuration)
Key to Fig. 6.2
Pump
Compressor
Controller
Auxiliary heater
Heat source circuit
This is how the heat pump is wired when delivered.
The heat pump is connected to the mains on a single
tariff (one consumer meter) (
1
). The power company re-
serves the right to switch off the compressor and the
auxiliary heating as required by means of a ripple con-
trol signal. The duration and frequency of the shut-
downs is determined by the company, or should be clari-
fied with them.
• Connect the power supply to the principal mains
feed (
1
).
• Connect the ripple control signal relay to terminal 13,
"EVU" (see Fig 6.6), if required by the power compa-
ny. The heat pump is blocked with this signal when the
contact is closed.
You will find an overview of the complete wiring dia-
gram in the appendix.
6 Electrical installation
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