6.2.1
Connect and configure the iMPI heat pump with electrical
back-up with 2 circuits and a buffer tank
Fig.31
MW-5000768-3
M
Ö&
Ö&
Ö&
Ö&
2
5
6
1
7
3
230V
50Hz
X7
X23
X6
X8
X15
X12
X28
1
2
6
9
9
5
10
10
7
8
3 4
4
1
8
11
11
SCB-04B
EHC-04
1 Outdoor temperature sensor
2 Safety thermostat for underfloor heating flow
3 Thermostat connected to circuit B
4 Flow sensor on circuit B
5 Pump supply on circuit B
6 Supply of the three-way valve on circuit B kit
7 Thermostat connected to circuit A
8 Outdoor unit bus connection
9 230 V power supply connection between the EHC–
04 and SCB-04 PCBs
10 BUS connection linking the EHC–04 and SCB-04
PCBs
11 Pump supply on circuit A
1. Connect the accessories and options to the EHC–04 PCB, respect
ing the 230-400 V and 0-40 V cable feed-throughs.
2. Connect the accessories and options to the SCB-04 PCB, respect
ing the 230-400 V and 0-40 V cable feed-throughs.
3. On initial start-up, or after a reset of the factory parameters, set the
CN1 and CN2 parameters according to the output of the outdoor
unit.
4. Select the number corresponding to the installation type by pressing
the or key.
Installation type
No.
1 direct heating circuit and 1 underfloor heating circuit
with mixing valve
03
Selecting the installation type enables automatic configuration of
the parameters required for the control panel to operate correctly
(gradient, maximum circuit temperature, etc.).
5. In the Installer \ EHC–04 \ ADV menu, configure the HP086 pa
rameter to 1.
6. Confirm the selection by pressing the
key.
The main parameters are set.
6 Connecting diagrams
7685645 - v04 - 07032018
AWHP-2 iMPI
39
