Live
Operating description
4
Heating only. When the 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 DP120 parameter. The
DHW tank will then heat up the water more quickly.
5
Domestic hot water production only.
10.4.3 Running the back-up in domestic hot water mode
Start-up conditions for the back-up
The start-up conditions for the back-up producing domestic hot water are
described in the following table.
Tab.53
Parameter
Setting
AP001
The function of the BL1 blocking input is not set to 4, 6 or 8
AP100
The function of the BL2 blocking input is not set to 4, 6 or 8
AP098
Blocking input 1 contact direction configuration
0 = input active on Open contact
1 = input active on Closed contact
2 = input active on Off contact
AP099
Blocking input 2 contact direction configuration
0 = input active on Open contact
1 = input active on Closed contact
Operating description
The behaviour of the hydraulic or electrical back-up in domestic hot water
mode depends on the configuration of the DP051 parameter.
Tab.54 Behaviour of the hydraulic or electrical back-up
Value of the DP051 parameter
Operating description
0
The system gives priority to the heat pump during domestic hot water production.
Recourse to the hydraulic or electrical back-up is only taken if the DP090 time delay has
elapsed in domestic hot water mode, unless hybrid mode is activated. In that case, hy
brid logic takes over.
1
Domestic hot water production mode gives priority to comfort by accelerating domestic
hot water production by simultaneously using the heat pump and the hydraulic or electri
cal back-up.
In this mode, there is no maximum time for domestic hot water production as the use of
the back-ups helps to ensure domestic hot water comfort more quickly.
10.5 Setting the parameters
10.5.1 Language selection
1. Access the User menu.
2. Select the HMI sub-menu.
10 Settings
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