Safety and control systems
The heat pump is fitted out:
Temperature control:
A temperature sensor of the evaporator, starting the
defrosting operation.
An ambient temperature sensor ensuring the cut of the heat
pump when the temperature of the external air goes down
under -7°C (factory settings). The normal cycle restarts when the
outside temperature goes up to -5C (factory settings).
A temperature sensor placed on the exchanger, ensuring the cut of
the heat pump when the temperature of the water reaches the
required temperature. The normal cycle restarts when the
temperature in the exchanger goes down to a temperature lower of
2°C (factory settings) than this required.
With 4 safety systems:
A water flow detector placed at the exit of the exchanger
A high pressure gas circuit breaker, a low pressure gas circuit
breaker
An outlet compressor temperature sensor
If a defect occurs on one of these systems (defective system, off-line
or abnormal measured value) a message of defect appears on the
display screen; see the paragraph “Error codes and what to do” of this
note.
Caution: the removal or the shunt of one of the control or safety
systems involves the cancellation of the guarantee.
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