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Preparing for installation
General information on the electrical connection
Connecting control panel cables
■
control unit:
Observe information from page 34.
■
Electrical connection of system components
(pumps, mixers, valves, message facilities, contac-
tors, function extensions, sensors etc.):
Connections are made in the heat pump control unit.
Observe information from page 39.
■
Power supply:
The number of power cables from the distribution
board (meter box) to the heat pump control unit and
the control panel depends on the system version and
tariffs used.
Connections are made in the heat pump control
panel. Observe information from page 58.
Internal heat pump
Installation room requirements
!
Please note
Incorrect ambient conditions can result in sys-
tem damage and can put safe operation at risk.
The installation room must be dry and free
■
from the risk of frost.
Ensure ambient temperatures are above 0 °C
and below 35 °C.
■
Prevent air contamination by halogenated
hydrocarbons (e.g. as contained in paints, sol-
vents or cleaning fluids) and excessive dust
(e.g. through grinding/polishing work).
Prevent consistently high humidity levels (e.g.
■
caused by continuous drying of washing).
!
Please note
Overloading the floor can result in building dam-
age.
Observe the permissible floor load.
■
Total weight:
AWHI 351.A10
AWHI 351.A14
AWHI 351.A20
■
To prevent the transmission of structure-borne noise,
never site the appliance on ceilings with wooden
joists (e.g. in the attic).
8
heat pump
–
■
Observe required minimum clearances.
■
Level the appliance horizontally.
■
Min. required room height 2.10 m
Observe the necessary minimum room volume to
■
EN 378:
AWHI 351.A10
AWHI 351.A14
AWHI 351.A20
Note
During defrosting, cool vapour escapes from the air
duct on the discharge side. This must be taken into
consideration during installation (choosing the installa-
tion room, determining the intake and discharge side).
287 kg
297 kg
361 kg
13.55 m
3
16.13 m
3
3
17.10 m
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