Alarms
6 720 645 504 (2011/04) en
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17.9.28 Short circuit on sensor E4x.T3 hot water
Function: The alarm is activated when the sensor's value
indicates a temperature higher than +110 °C. The hot
water production is terminated.
Reset condition: The value of the sensor indicates <
110 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.29 Failure on sensor E1x.TT.T5 room
Function: The alarm is activated when the sensor's value
indicates a temperature lower than -1 °C. In the event of
a failure on sensor T5, the room temperature influence
is set to 0.
Reset condition: The value of the sensor indicates
> -1 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.30 Short circuit on sensor E1x.TT.T5 room
Function: The alarm is activated when the sensor's value
indicates a temperature higher than +70 °C. In the event
of a short circuit on sensor T5, the room temperature
influence is set to 0.
Reset condition: The value of the sensor indicates
< 70 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.31 Failure on sensor E31.TT.T5 room
Function: The alarm is activated when the sensor's value
indicates a temperature lower than -1 °C. In the event of
a failure on sensor T5, the room temperature influence
is set to 0.
Reset condition: The value of the sensor indicates
> -1 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.32 Short circuit on sensor E31.TT.T5 room
Function: The alarm is activated when the sensor's value
indicates a temperature higher than +70 °C. In the event
of a short circuit on sensor T5, the room temperature
influence is set to 0.
Reset condition: The value of the sensor indicates
< 70 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.33 Failure on sensor E2x.T8 heat transfer fluid
out
Function: Activated when the sensor's value indicates a
temperature lower than 0 °C. To be able to make hot
water, T8 is set at a temperature calculated according to
the following formula: T8 = T9 + Compressor x 7K + 0.07K
x current output in operation.
The active compressor provides Compressor = 1 and
current output in operation means additional heat in %.
Compressor operation and 50% additional heat then
give T8 = T9 + 10.5K. Compressor off (Compressor = 0)
and no additional heat (0%) give T8 = T9.
Reset condition: The value of the sensor indicates >0 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
17.9.34 Short circuit on sensor E2x.T8 heat transfer
fluid out
Function: Activated when the sensor's value indicates a
temperature higher than 110 °C. T8 is calculated
according to the same formula as in the event of a failure
Chapter 17.9.33).
Reset condition: The value of the sensor indicates
< 110 °C.
Category: H.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
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