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7 Settings
Tab.70
Input parameters
Access
Air Src Heat pump >
23.5
Parameters, counters, signals >
Parameters
Tab.71
Voluntary overheating parameters
Access
Air Src Heat pump >
23.5
Parameters, counters, signals >
Parameters > Adv. Parameters
Tab.72
Operation of the heat pump in a Smart Grid
BL1 IN input
BL2 IN input
Inactive
Inactive
Active
Inactive
Inactive
Active
Active
Active
62
MIT-M
7.3.19
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
On
Parameter
BL function
(AP001)
BL2 function
(AP100)
5. In order to voluntarily overheat the installation and benefit from low-
tariff electricity, set the set point temperatures that can be exceeded.
On
Parameter
Offset heating - PV
(HP091)
Offset DHW - PV
(HP092)
7.3.20
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 in
order to optimise electricity consumption.
Operating
Normal: The heat pump and the electrical back-up operate normally
Shutdown: The heat pump and the electrical back-up are shut down
Economy: The heat pump voluntarily overheats the system without the electrical back-
up
Super Economy: The heat pump voluntarily overheats the system with the electrical
back-up
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–05 PCB. Smart Grid signals come from dry contacts.
3. Turn on the electricity supply and switch on the heat pump.
Supplying the heat pump with photovoltaic energy
Description
BL input function selection
BL2 input function
selection
Description
Heating setpoint
temperature offset when
photovoltaic energy is
available
Domestic hot water
setpoint temperature
offset when photovoltaic
energy is available
Connecting the installation to a Smart Grid
Adjustment required
Photovoltaic HP Only or
PV HP And backup
Photovoltaic HP Only or
PV HP And backup
Adjustment required
Set the authorisation to exceed
the heating set point temperature
from 0 to 30 °C
Set the authorisation to exceed
the domestic hot water set point
temperature from 0 to 30 °C
7756241 - v02 - 19062020
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