2. If necessary, start filling the installation:
Tab.65
Access
Parameter
> Installation Setup > Heating circuit autofill >
Start water filling: Select this parameter to start filling the installa
tion. The parameter Filling Inst Timeout (AP023) defines the maxi
mum duration authorised to obtain a pressure of 0.3 bar during the
first water fill with the auto-filling kit. It is 60 minutes.
If there is an error on the user interface, restart the auto-filling
function as many times as needed.
3. Configuring the auto-filling function:
Tab.66
Access
Parameter
Description
Default value
> Installation Setup >
Heating circuit autofill >
Settings
Min. water pressure
(AP006)
Appliance will report low water
pressure below this value
From 0 bar to 6 bar
0.3 bar
Filling Inst Timeout
(AP023)
Maximum duration authorised to ob
tain a pressure of 0.3 bar during the
first water fill with the auto-filling kit.
From 0 Min to 60 Min
60 minutes
Filling Interval (AP051)
The minimum time that is allowed
between two top-up fillings.
From 0 to 65535 days
90 days
Top up timeout (AP069)
Maximum time to top up the water in
the circuit during operation.
0 Min to 65535 Min
5 minutes
Operational Pressure
(AP070)
The operational water pressure the
device should be working on.
From 0 bar to 2.5 bar
2 bar
InstallMaxTimeOut
(AP071)
Maximum time that is needed to fill the
complete installation.
From 0 Sec to 3600 Sec
3600 seconds
9.2.12 Supplying the heat pump with photovoltaic energy
When lower cost electrical energy is available, such as photovoltaic
energy, the heating circuit and domestic hot water tank (if present) can be
overheated. Underfloor cooling cannot be supplied with power in this way.
1. Cut off the mains electricity to the indoor unit.
2. Connect a dry contact to the BL1 or BL2 IN multifunction input.
3. Switch the indoor unit back on.
4. Configure the heat pump parameters
Tab.67 Input parameters
Access
Parameter
Description
Adjustment required
23.5
Air Src Heat pump >
Parameters, counters, signals >
Parameters
BL function
(AP001)
BL input function selection
Photovoltaic HP Only or
PV HP And backup
BL2 function
(AP100)
BL2 input function
selection
Photovoltaic HP Only or
PV HP And backup
On
9 Settings
66
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