MENU > Settings > Application
DHW priority (closed valve / normal operation)
1x052
The heating circuit can be closed when the controller acts as slave and when
DHW heating / charging is active in the master.
See Appendix “Parameter ID overview”
OFF:
The flow temperature control remains unchanged
during active DHW heating / charging in the master
controller.
ON:
The valve in the heating circuit is closed* during active
DHW heating / charging in the master controller.
* The desired flow temperature is set to the value set in
‘Frost pr. T’
This setting must be considered if this controller is a slave.
MENU > Settings > Application
P frost T (circulation pump, frost protection temp.)
1x077
Frost protection, based on the outdoor temperature.
When the outdoor temperature gets below the set temperature value in ‘P
frost T’, the controller automatically switches ON the circulation pump (for
example P1 or X3) to protect the system.
See Appendix “Parameter ID overview”
OFF:
No frost protection.
Value:
Circulation pump is ON when the outdoor temperature
is below the set value.
Under normal conditions, your system is not frost protected if your
setting is below 0 °C or OFF.
For water-based systems, a setting of 2 °C is recommended.
If the outdoor temperature sensor is not connected and the factory
setting has not been changed to 'OFF', the circulation pump is always
ON.
MENU > Settings > Application
P heat T (heat demand)
1x078
When the desired flow temperature is above the set temperature in ‘P heat T’,
the controller automatically switches ON the circulation pump.
See Appendix “Parameter ID overview”
Value:
The circulation pump is switched ON when the desired
flow temperature is above the set value.
The valve is fully closed as long as the pump is not switched on.
MENU > Settings > Application
Frost pr. T (frost protection temperature)
11093
Circuit
Setting range
Factory setting
5 ... 40 °C
10 °C
Set the desired flow temperature for example at heating cut-out, total stop
etc. to protect the system against frost.
5 ... 40:
Desired frost protection temperature.
114 | © Danfoss | 2017.09
VI.GU.T2.02
Operating Guide ECL Comfort 310, application A333