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1 2
1 Strain relief
2 Terminal area
Route cables and leads through the strain relief fittings.
If space behind the appliance is limited, the terminal area can be
folded out.
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Undo the screw on the terminal area.
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Pivot the terminal area to the side.
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Fix the terminal area in place with the locking mechanism.
Connect the electric emergency/booster heater if you want to
utilise the following appliance functions:
-
tion
Mono energetic op-
eration
If the dual mode point is undershot, the electric emer-
gency/booster heater safeguards both the heating oper-
ation and the provision of high DHW temperatures.
Emergency mode
If the heat pump shuts down due to a fault, the heating
output is covered by the electric emergency/booster
heater.
Heat-up program
(only for underfloor
heating systems)
Where return temperatures are <25°C, the electric
emergency/booster heater must provide the necessary
heat for screed drying.
With such low system temperatures, the heat for screed
drying must not be provided by the heat pump, other-
wise the frost protection of the appliance can no longer
be guaranteed during the defrost cycle.
When the heat-up program has ended, the electric
emergency/booster heater can be disconnected if it is
not required for appliance operation.
Please note that during the heat-up program, emergency
mode is not available.
Pasteurisation
mode
The electric emergency/booster heater starts automat-
ically when pasteurisation mode is active. The DHW is
then regularly heated to 60°C to protect it against the
growth of legionella bacteria.
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