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Alarm
Rego 1000 – 6 721 831 662 (2021/03) en 17
Reset condition: The error in the electric heater has been overcome and
no alarm signal.
Category: F.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
Contact the dealer if the alarm remains after acknowledgement.
7.7.15 Failure on sensor E31.T32 anti-freeze cooling
Function: The mixing valve in the collector circuit is closed. Activated
when the sensor's value indicates a temperature lower than -10 °C. The
sensor is used in certain cooling applications and is placed in the
collector circuit for cooling to prevent the heat exchanger from freezing.
Reset requirement:The value of the sensor indicates >-10 °C.
Category: G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.16 Short circuit on sensor E31.T32 anti-freeze cooling
Function: The mixing valve in the collector circuit is closed. Activated
when the sensor's value indicates a temperature higher than 30 °C. The
sensor is used in the collector circuit for cooling in order to prevent the
heat exchanger from freezing.
Reset requirement:The value of the sensor indicates >30 °C.
Category: G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.17 Error dew point sensor E1x.TM
Function: Cooling on current mixing valve is aborted. Activated when
the signal from the sensor deviates from its normal operating range. The
alarm may appear after a power failure but the alarm cause normally
disappears automatically and the only thing that has to be done is to
acknowledge the alarm.
Reset condition: The sensor's signals return to the normal operating
range.
Category: G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.18 Faulty protective anode E41.F31
Function: Does not affect the compressor or additional heat. The alarm
is activated when the anode in the hot water heater is broken or does not
work.
Reset condition: The anode should be taken care of so as to prevent
corrosion in the hot water heater.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
Contact the dealer.
7.7.19 Failure on sensor E11.T1 flow
Function: The system switches over to control based on sensor T8. The
alarm is activated when the sensor's value indicates a temperature lower
than 0 °C.
Reset condition: The value of the sensor indicates >0 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.20 Short circuit on sensor E11.T1 flow
Function: The system switches over to control based on sensor T8. The
alarm is activated when the sensor's value indicates a temperature
higher than 110 °C.
Reset condition: The value of the sensor indicates
< 110 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.21 Failure on sensor E12.T1, E13.T1... flow
Function: The mixing valve for the circuit is closed completely. The
alarm is activated when the sensor's value indicates a temperature lower
than 0 °C.
Reset condition: The value of the sensor indicates >0 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.22 Short circuit on sensor E12.T1, E13.T1... flow
Function: The mixing valve for the circuit is closed completely. The
alarm is activated when the sensor's value indicates a temperature
higher than 110 °C.
Reset condition: The value of the sensor indicates
< 110 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.23 Failure on sensor T2 outdoor
Function: In the event of a failure on T2, the outdoor temperature is set
to 0 °C so that the heat pump can continue to produce heat. The alarm is
activated when the sensor's value indicates a temperature lower than -
50 °C.
Reset condition: The value of the sensor indicates
> -50 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has disappeared.
Contact the dealer if the alarm remains active for more than three
hours or recurs often.
7.7.24 Short circuit on sensor T2 outdoor
Function: In the event of a short circuit on T2, the outdoor temperature
is set to 0 °C so that the heat pump can continue to produce heat. The
alarm is activated when the sensor's value indicates a temperature
higher than +70 °C.
17


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