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Alarm
6 720 643 415
(2010/03)
27
11.7.6 Low temperature collector circuit out E2x.T11
Function:
Alarm is given if the collector circuit
temperature is too low and if warning of this has been
given several times.
Alarm timer starts:
Yes.
Reset condition:
The temperature of the refrigerant
exceeds the lowest permitted temperature.
Category:
A.
Alarm lamp/buzzer:
Yes.
Restart:
Acknowledgement is required.
B
Contact the dealer if the alarm remains after
acknowledgement.
11.7.7 Motor cut-out 1 E2x.F11, Compressor
Function:
Activated when the compressor's motor cut-
out has tripped because of high current or lost current
phase resulting in undue strain on the compressor.
Alarm timer starts:
Yes.
Reset condition:
Motor cut-out reset.
Category:
B.
Alarm lamp/buzzer:
Yes.
Restart:
Acknowledgement is required.
B
Check the heating system fuses, and main fuses.
B
Contact the dealer if the alarm remains after
acknowledgement.
11.7.8 Motor cut-out 2 E2x.F12, Collector circuit
pump
Function:
Compressor stops. Activated when the
collector circuit pump motor cut-out has tripped. The
heat transfer fluid (coll.) pump stops and the heat pump
also stops to protect the other components.
Alarm timer starts:
Yes.
Reset condition:
Motor cut-out reset.
Category:
B.
Alarm lamp/buzzer:
Yes.
Restart:
Acknowledgement is required.
B
Check heating system fuses.
B
Contact the dealer if the alarm remains after
acknowledgement.
11.7.9 Phase error E2x.B1
Function:
Compressor stops. Activated when one of the
phases in the voltage supply is missing or when there is
a phase sequence error. A voltage difference > 15%
between the phases also results in an alarm.
Alarm timer starts:
Yes.
Reset condition:
The error has been remedied and the
phase guard is under voltage.
In the event of a voltage difference: The difference
between phases has been reduced to < 15 %.
Category:
E.
Alarm lamp/buzzer:
Yes.
Restart:
Acknowledgement is required.
B
Check the heating system fuses, and main fuses.
B
Contact the dealer if the alarm remains after
acknowledgement.
11.7.10 Failure on sensor E2x.T6 hot gas
Function:
The compressor stops because the hot gas
cut-out cannot be guaranteed. Activated when the
sensor's value indicates a temperature lower than
-50 °C.
Alarm timer starts:
Yes.
Reset condition:
The value of the sensor indicates >
-50 °C.
Category:
E.
Alarm lamp/buzzer:
Yes.
Restart:
Automatic once the alarm cause has
disappeared.
B
Contact the dealer if the alarm remains active for
more than three hours or recurs often.
11.7.11 Short circuit on sensor E2x.T6 hot gas
Function:
The compressor stops because the hot gas
cut-out cannot be guaranteed. Activated when the
sensor's resistance value indicates a temperature higher
than 150 °C.
Alarm timer starts:
Yes.
Reset condition:
The value of the sensor indicates <
150 °C.
Category:
E.
Alarm lamp/buzzer:
Yes.
Restart:
Automatic once the alarm cause has
disappeared.
B
Contact the dealer if the alarm remains active for
more than three hours or recurs often.