Danfoss 087H3241 User Guide, Installation & Maintenance

30 VI.KT.G2.02 © Danfoss 05/2007 DH-SMT/DK
DH-SMT/DK VI.KT.G2.02 © Danfoss 05/2007 31
DHW prior. (closed valve / normal operation) 7052
Setting range Factory setting
ON / OFF OFF
The heating circuit can be closed when the controller acts as slave and when DHW charging is active in
the master.
ON: The valve in the heating circuit is closed* during active DHW charging in
the master controller.
* The desired flow temperature is set to ‘Standby T’ (line 7093)
OFF: The flow temperature control remains unchanged during active DHW
charging in the master controller.
The setting in line 7052 must be considered if this controller is a slave.
P1 frost T (frost protection) 7077
Setting range Factory setting
OFF / -10 ... 20 °C 2 °C
When the outdoor temperature is below the set temperature in ‘P1 frost T’, the controller automatically
switches ON the circulation pump to protect the system.
OFF: No frost protection.
-10 ... 20:
The 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.
P1 heat T (heat demand) 7078
Setting range Factory setting
5 ... 40 °C 20 °C
When the desired flow temperature is above the set temperature in ‘P1 heat T’, the controller
automatically switches ON the circulation pump to meet the heat demand.
5 ... 40:
The circulation pump is ON above the set value.
The valve is fully closed as long as the pump is not switched on.
Standby T (standby temperature) 7093
Setting range Factory setting
5 ... 40 °C 10 °C
Set the desired flow temperature at standby (e.g. during total stop).
5 ... 40:
Desired standby flow temperature.
Ext. (external override) 7141
Setting range Factory setting
OFF / SETBACK / COMFORT OFF
Choose mode for ‘Ext.’ (external override).
The override can be activated for setback or comfort mode. For override, the controller
mode must be AUTO (scheduled operation).
OFF: The controller's schedule is not overridden.
SETBACK:
The controller is in setback mode when terminals 11 and 12 are short-
circuited.
COMFORT:
The controller is in comfort mode when terminals 11 and 12 are short-
circuited.

Danfoss 087H3241 Specifications

General

Brand	Danfoss
Model	087H3241
Category	Controller
Language	English