Functional Sequence; Start-Up; Maintenance / Servicing - Behncke EWT-80-40 Betriebsanleitung

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Functional sequence

In the electric heat exchanger, heat is transferred to the pool water by the heating rod.
The thermostat regulates the water temperature to the set level, setting range: 0 to 40°C.
EWT 80-40/-70: If the required positive operating pressure drops below 6 kPa (0.06 bar) due to a lack of
flow, the safety pressure limiter switches off the electric heat exchanger.
EWT 80-41/-71: If the required positive operating pressure drops below 36.0 l/min due to insufficient flow,
the flow switch switches off the EWT.
Option: Safety thermostat
The safety temperature limiter protects against overheating. It switches off the electric heat exchanger at
a temperature of 44°C.
By pressing the fault clear button, the electric heat exchanger can be restored to normal operational
readiness after a fault has been rectified.
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Start-up

Have you read and understood this instruction manual – particularly chapter 1, Safety? Do not activate the
electric heat exchanger until you have!
• Set the desired pool water temperature on the thermostat.
The electric heat exchanger will heat the pool water until the set temperature has been reached.
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Maintenance / servicing

Check the electric heat exchanger and the connections for leaks and bleed the entire water circuit weekly.
CAUTION!
The electric heat exchanger may be damaged.
For safety reasons, work on the pipelines and the electrical installation may
only be carried out by qualified personnel.
Do not climb on the electric heat exchanger.
Only carry out maintenance and cleaning work when the shut-off valves are
closed in the water circuit!
Deaerate the entire water circuit, otherwise the heating element may be
damaged.
CAUTION!
The electric heat exchanger may be damaged.
For safety reasons, work on the electric heat exchanger may only be carried out
by qualified personnel.
Do not climb on the electric heat exchanger.
Work on the pipe connections may only be carried out when the shut-off valves
in the water circuit are closed!
Electric heat exchanger / Functional sequence
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