Alarms
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17.9.7 Alarm from groundwater circuit
Function: Compressor stops. Activated when pressure/
flow (depending on the installed equipment) becomes
too low/high in the groundwater circuit.
Alarm timer starts: Yes.
Reset condition: Pressure/flow goes back to the
permitted level.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
17.9.8 Too high boot count I/O board BAS x
Function: Compressor stops. Is activated if the
controller has executed more than three new starts after
the alarm Check CANbus cable connection,
( Chapter 17.9.47).
Alarm timer starts: Yes.
Reset condition: The CANbus communication with the
controller has been restored.
Category: A.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
17.9.9 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.
17.9.10 Motor cut-out 2 E2x.F12, Collector circuit
pump
Function: Activated when the collector circuit pump
motor cut-out/circuit breaker has tripped. The collector
circuit pump stops and the compressor also stops so as
to prevent the evaporator from freezing.
Alarm timer starts: Yes.
Reset condition: Motor cut-out/circuit breaker reset.
Category: B.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
17.9.11 Phase error E2x.B1
Function: The compressor stops when the phase guard
trips because of the lack of a phase or the presence of a
phase sequence error. Also too low (<195V) or too high
(>254V) voltage generates an alarm.
( Chapter 11.2.)
Alarm timer starts: Yes.
Reset condition: The error has been remedied.
At too low/high voltage: The voltage is greater than 201V
or lower than 250V.
Category: E.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.12 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.
17.9.13 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.
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