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Hibernation Of The Ewt In Frost-Proof Rooms; Hibernation Of The Ewt In Non Frost-Proof Rooms; Troubleshooting - Bencke EWT 80-40/-41 Bedienungsanleitung

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6.1

Hibernation of the EWT in Frost-proof Rooms

Intervention in technical systems by unqualified persons might lead to injury or
damage.
For hibernation in frost-proof rooms, the electric heat exchanger must be comple-
take care
tely filled with water or be completely drained.
6.2

Hibernation of the EWT in Non Frost-proof Rooms

Expert hibernation without frost damage is possible if the following steps are
observed:
• Close blocking units in the water cycle (the blocking units must be installed in
frost-free rooms).
• Flush and drain electric heat exchanger and adjoining pipes until blocking units.
6.2.1
Electric Heat Exchanger with Vertical Layout
• Drain electric heat exchanger completely via drain fittings.
6.2.2
Electric Heat Exchanger with Horizontal Layout
• Remove heat exchanger with horizontal layout.
• Flush heat exchanger in order to remove contamination and store in a dry place.
7

Troubleshooting

Effects
No performance
Electric heat exchanger has the lock between bathwater pump and electric heat
is further heated up,
despite deactivated
bathwater recirculating
pump
Checking the possible cause
is the electric heat exchanger connected to the electrical
supply?
have the blocking units been opened?
is the electric heat exchanger completely filled with water?
has the electric heat exchanger been ventilated?
is there sufficient flow (see Technical Data) in the electric
heat exchanger?
exchanger been activated?
Troubleshooting
49

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