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Electrical installation
GENERAL
Electrical installation and wiring must be carried out in
accordance with national provisions.
NOTE
Electrical installation and any servicing must
be carried out under the supervision of a quali-
fied electrician. Disconnect the current using
the circuit breaker before carrying out any ser-
vicing.
14
Chapter 3 | For the Installer
SENSORS
VPB S200 and VPB S300 can be supplemented with up
to two hot water sensors, one for display and one for
control. The displaying sensor (BT7) is fitted at the fact-
ory and placed in a submerged tube (UA1), the con-
trolling hot water sensor (BT6) is placed in the sub-
merged tube for control sensor (UA2). In cases where
it is only possible to connect one sensor, use the sub-
merged tube for the controlling sensor (UA2).
VPBS S300 can also be supplemented with a sensor for
an external heat source (BT54). This is placed in the
submerged tube for the external heat source (UA3).
Use the sensors provided with the heat pump (or other
heat source). When no heat sensors have been provided
these must be ordered from the manufacturer of the
heat source.
The figure shows VPBS S300.
BT7
UA1
UA2
UA3
NIBE VPB S/ VPBS S
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