Alarms
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17.12 Information log
The information log shows information from the heat pump.
17.12.1 High flow temperature E2x.T8
Function: Compressor stops. Activated when the temperature on
sensor T8 exceeds the maximum permitted temperature for T8.
Reset condition: Restarts when E2x.T9 falls below the saved
temperature with hysteresis on 3K (not adjustable).
Category: I.
17.12.2 Temporary heat pump stop E21.RLP
Function: Activated when the pressure in the refrigerant circuit of the
heat pump becomes too low. If the information appears several times
during a certain time period, the information transforms into a category
A alarm (Æ Chapter 17.9.2 ).
Reset condition: The pressure goes back to the permitted level.
Category: I.
17.12.3 Temporary heat pump stop E21.RHP
Function: Activated when the pressure in the refrigerant circuit
becomes too high. If the information appears several times during a
certain time period, the information transforms into a category A alarm
(Æ Chapter 17.9.3 ).
Reset condition: The pressure goes back to the permitted level.
Category: I.
17.12.4 Low temperature collector circuit in E2x.T10
Function: The information is given if the temperature of the collector
circuit in is too low. First, a information is given. If the information
appears several times during a certain time period, the informations
transforms into a category A alarm.
For settings of T10: (ÆChapter 16.9 ).
Alarm timer starts: Yes.
Reset condition: T10 exceeds the lowest permitted temperature T10
plus hysteresis.
Category: J which goes over into A.
17.12.5 Low temperature collector circuit out E2x.T11
Function: The information is given if the temperature of the collector
circuit out is too low. First, a information is given. If the information
appears several times during a certain time period, the warning
transforms into a category A alarm.
For settings of T11: (ÆChapter 16.9 ).
Alarm timer starts: Yes.
Reset condition: T11 exceeds the lowest permitted temperature T11
plus hysteresis.
Category: J which goes over into A.
17.12.6 Hot water peak failure, new try within 24 hours
Function: The hot water has not come up at the right temperature. The
hot water peak is repeated at the same time on the next day.
Reset condition: The correct hot water peak temperature is reached.
Category: Z.
17.12.7 Temporary heat pump stop due to working area limits
Function: The information is displayed only if Hot gas stop function
activated has been set to Yes. The compressor stops until the hot gas
temperature falls below the set limit.
Reset condition: The hot gas temperature is within the range of the
compressor.
Category: Z.
17.12.8 Temporary hot water stop due to working area limits
Function: The information is displayed only if Hot gas stop function
activated has been set to Yes. Ongoing hot water operation is aborted
and replaced with heating operation.
Reset condition: The hot gas temperature is within the range of the
compressor.
Category: Z.
17.12.9 Additional heat is now working at its highest temperature
Function: The additional heat begins to be stepped down. The
information is activated in additional heat mode if the outgoing
temperature (T1 or T8) approaches the set maximum value. The
information is blocked during hot water peaks or extra hot water.
Reset condition: The information is deactivated when the temperature
falls.
Category: Z.
17.12.10 Temporary hot water stop E2x
Function: Ongoing DHW mode is temporarily interrupted; the system
changes over to heating mode.
Reset condition: DHW temperature drops a few degrees.
Category: Z.
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