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17. Parameter description
In summer mode and outside the DHW switching times (in control accessories),
the water in the plate heat exchanger can be maintained at a set temperature
to increase DHW convenience.
For this, the set DHW temperature selected with the DHW buttons applies.
If the appliance is connected to a BM-2, DHW quick start is disabled.
The BM-2 takes over this function.
Parameter H55
DHW quick start
Factory setting: see table
Setting range: 0 to 1
Individual setting:
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If the outside temperature undershoots the selected value, the appliance pump
goes into continuous operation. If the minimum boiler water temperature falls
below the fixed set value of +5 °C, the burner starts and heats the boiler up to
the minimum boiler water temperature.
If the appliance is connected to a BM-2, system frost protection is
disabled. The BM-2 takes over this function.
Note: Only change the factory setting if you can ensure that the heating system
and its components will not freeze up at low outside temperatures.
Caution
Material damage from frost
Frost can cause the heating system to freeze up, which can result in material
damage to the system and the premises.
- Please observe the frost protection settings of the boiler.
- Ensure that the system is adequately protected against frost.
- Inform the user about the frost protection measures taken.
- Ensure that there is a constant power supply to the heating appliance.
Parameter A09
System frost protection
Factory setting: see table
Setting range: -20 to 10 °C
Individual setting:
_____
0: ECO = DHW quick start OFF
1: Comfort = DHW quick start ON
