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9 Parameters
Tab.42
Phase
Description of the phase
1
Domestic hot water production only
2
Heating only
3
Domestic hot water production only
4
Heating only
5
Domestic hot water production only
9.2.4
Operation of the heating curve
Fig.48
1
55 °C
45 °C
30 °C
20 °C
15 °C
0 °C
56
Operating description
When the system is switched on, if domestic hot water production is au
thorised and the parameter DHW management (DP051) is configured to
HP only, a domestic hot water production cycle is started up for a maxi
mum duration that can be set and fixed by the Max DHW duration (DP047)
parameter.
In the event of insufficient heating comfort, the heat pump is running too
long in domestic hot water mode: reduce the maximum duration of domes
tic hot water production.
Production of domestic hot water is off. Even if the domestic hot water set
point is not reached, a minimum heating period is forced. This period can
be set and defined with the Min CH before DHW (DP048) parameter. After
the heating period, tank loading is enabled again.
When the domestic hot water setpoint is reached, a period in heating mode
begins.
When the Hysteresis DHW (DP120) differential is reached, domestic hot
water production is triggered.
If there is not enough domestic hot water (e.g. if the domestic hot water
does not heat up quickly enough): reduce the trip differential (hysteresis)
by modifying the value of the Hysteresis DHW (DP120) parameter. The
heat pump will start heating up the domestic hot water more often.
When the domestic hot water setpoint is reached, a period in heating mode
begins.
The relationship between the outdoor temperature and the circuit flow
heating water temperature is controlled by a heating curve or water
temperature setpoint. This can be adjusted according to the requirements
of the installation.
50 °C
1,5
1,5
34 °C
0,7
26 °C
0,3
3
5
20 °C
10 °C
0 °C
Important
Regulation via the heating curve is only possible when the
regulation strategy CP780 is set on the modes "Acc. to Ext. T."
and "Acc. to Ext. T and Room T.".
-10 °C
-20 °C
-30 °C
MW-6070170-1
2
4
7856310 - v02 - 21122023
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