BA_GMLW OTE bis V3.4 SHORT_EN_20090408_V1
Page 10 of 25
4.6 Electrical
connection
The regulations of the energy util-
ity and the relevant EN-standards
are to be adhered to without fail.
The values indicated in the Appendix for fuse-
protection are given solely as reference values.
The implementation of proper safety measures
is the sole responsibility of the electrician con-
necting the heat pump. In cases of system
damage occurring due to falsely installed safety
devices, OCHNSER provides no guarantee!
4.6.1
Supply voltage to heat pump
The protection for the main electrical circuit is to
be provided by a three pole circuit breaker
which, in case of failure, shuts off all poles
(amperage found in Appendix, Technical Data).
The supply cable must also be protected
against overload and short-outs.
The control circuit should also employ an all-
pole shut-off circuit breaker. The main and
control circuits must be separate circuits.
.
Fig. 7:El. connection to heat pump
We recommend that the control voltage and the
main supply have their own FI switch so that, if
there is a short-circuit in the house installation,
the heating system remains in operation.
supply X1,X2
Control voltage X3
