1. Connect the AC thermostat to the EHC–06 PCB.
1 EHC–06 PCB
2 Room thermostat
3 ON/OFF output
4 "Heating/cooling contact" output
2. Connect the "heating/cooling" thermostat control contact to the BL1
input on the EHC–06 PCB for the heat pump.
3. Connect the "On/Off" thermostat contact to the R-Bus input on the
EHC–06 PCB for the heat pump.
4. In the Installer/EHC–06 menu, configure the BL1 input to "Heating/
Cooling", by setting the AP001 parameter to 11.
5. In the Installer/EHC–06 menu, set the contact direction of the BL1
input with the AP098 parameter.
6. In the Installer/CIRCA0 menu, set the contact direction of the R-Bus
input with the CP640 parameter.
Tab.55
Value of
the param
eter
CP640
Value of
the param
eter
AP098
Blocking input
status
BL1
Operating mode
for the heat
pump
If R-Bus contact open
If R-Bus contact closed
1
(default
value)
1
(default
value)
Open
Cooling
No cooling demand
Cooling demand
1
(default
value)
1
(default
value)
Closed
Heating
No heating demand
Heating demand
1
0
Open
Heating
No heating demand
Heating demand
1
0
Closed
Cooling
No cooling demand
Cooling demand
0
1
Open
Cooling
Cooling demand
No cooling demand
0
1
Closed
Heating
Heating demand
No heating demand
0
0
Open
Heating
Heating demand
No heating demand
0
0
Closed
Cooling
Cooling demand
No cooling demand
7.3.10 Setting the parameters for using 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. Activate overheating authorisation for the heating circuit or the
domestic hot water tank by adjusting the AP001 parameter or the
AP100parameter.
Parameter
Description
AP001 or
AP100
Electrical back-up: 9 (Photovoltaic with electrical
back-up)
2. Connect a dry contact to the BL1 or BL2input.
3. Set the offset for the heating set point temperature when the
Photovoltaic function is active (HP091 parameter).
4. Set the offset for the domestic hot water set point temperature when
the Photovoltaic function is active (HP092 parameter).
7.3.11 Connecting the installation to a Smart Grid
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 installation
in order to optimise electricity consumption.
Fig.101 Connection diagram
MW-1001290-1
22°
3
2
4
1
R-Bus
BL1
7 Settings
78
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