Gorenje HPWW12, Инструкции по установке и запуску, Страница: 29 / 64

Water-to-water Heat Pump
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Dovod črpalka izvor (črpalke voda/voda)
Electric protection of the water-to-water (well water supplied) heat pump power supply line must be
provided by the end-user or by the installation technician. Use installation circuit breaker, with
characteristics corresponding the well pump. Electric connection shall be made with cable cord
with adequate cross section diameter. The cable cord should be installed in the heat pump from
the rear side via the M25x1.5 (or the M20x1.5) cable entry in order to prevent moving and falling
out of the cable cord. The cable cord should be connected directly to the contactor 3K2 with
bimetal protection 1F2.
Do not forget to connect the PE earth conduit!
We recommend that the power supply line and the controls supply line be connected to a separate
FI switch, so that in case of power failure, the heating system continues functioning.
Connecting cable cords Minimum diameter of wire cross section
External sensors 0.75 mm, if the difference is larger than 10 m,
the cable cord must be protected and grounded
at both ends. The cable cord must be installed
separately from the 230VAC/400VAC cable
cords (min. 20 cm). Max. length is 60 m.
Electronic expansion valve 1.0 mm, the cable cord must be protected and
grounded at both ends. The cable cord must be
installed separately from the 230VAC/400VAC
cable cords (min. 20 cm). Max. length is 20 m.
Connection of indoor units 1.0 mm, if the difference is larger than 10 m, the
cable cord must be protected and grounded at
both ends. The cable cord must be installed
separately from the 230VAC/400VAC cable
cords (min. 20 cm). If the cable length exceeds
50 m, the cross section should be 1.5 mm. Max.
length is 200 m.