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8.16.2
Supplying the heat pump with photovoltaic energy
Tab.26
Access path
Heat Pump>
23.5
Parameters, counters,
signals > Settings >
Advanced
Tab.27
Voluntary overheating parameters
Access path
Heat Pump>
23.5
Parameters, counters,
signals > Settings >
Advanced
8.16.3
Connecting the installation to a Smart Grid
Tab.28
Operation of the heat pump in a Smart Grid
BL1 IN input
BL2 IN input
Inactive
Inactive
Active
Inactive
Inactive
Active
Active
Active
7856310 - v02 - 21122023
On
Parameter
Description
BL input setting
Blocking input setting (1: Full blocking, 2:
AP001
Partial blocking, 3: User reset locking)
BL2 function
BL2 input function selection
AP100
On
Parameter
Description
Offset heating - PV
Heating setpoint temperature offset
HP091
when photovoltaic energy is
available
Offset DHW - PV
Domestic hot water setpoint
HP092
temperature offset when
photovoltaic energy is available
Operating
Normal: the heat pump and the backup electric heater operate normally
Off: the heat pump and the electric heating element are switched off
Economy tariff: the heat pump voluntarily overheats the system without the electric
heating element
Super economy tariff: the heat pump voluntarily overheats the system with the electric
heating element
The thermal energy from the backup boiler or heating element is
factored in to provide the full tally of restored thermal energy.
See also
Connecting an electricity meter, page 23
When lower cost electrical energy, such as photovoltaic energy, is
available, the heating circuit and domestic hot water tank can be
overheated. This option is not available in cooling mode.
1. Switch off the power supply to the indoor unit.
2. Connect a dry contact to the BL1 IN or BL2 IN multifunction input.
3. Switch the indoor unit back on.
4. Configure the heat pump parameters.
The BL input setting (AP001) corresponds to the BL1 input.
5. In order to voluntarily overheat the installation and benefit from low-
tariff electricity, set the setpoint temperatures that can be exceeded.
The heat pump can receive and manage control signals from the "smart"
energy distribution network (Smart Grid Ready). Based on the signals
received by the terminals of the BL1 IN and BL2 IN multifunction inputs,
the heat pump shuts down or voluntarily overheats the heating system
depending on the electricity tariff.
Overheating is activated depending on whether the dry contact on inputs
BL1 and BL2 is open or closed, and the BL1 contact config (AP098) and
BL2 contact config. (AP099) parameters which control the activation of
functions depending on whether the contacts are open or closed.
1. Switch off the power supply to the indoor unit.
2. Connect the Smart Grid signal inputs to the BL1 IN and BL2 IN inputs
on the EHC-14 PCB. Smart Grid signals come from dry contacts.
Adjustment required
Photovoltaic HP Only
PV HP And backup
Adjustment required
Set the authorisation to exceed the
heating temperature setpoint be
tween 0 and 30°C
Set the authorisation to exceed the
domestic hot water setpoint temper
ature from 0 to 30 °C
8 Settings
39
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