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Fig.35
1
X4
2
X5
Fig.36
Accessing the connection terminal
blocks
2
1
Tab.27
Bridges and output setting
Power supply mode
Single phase
Three-phase
7756241 - v02 - 19062020
MW-1001223-1
Maximum output
Number of bridges
2 kW
3
6 kW
3
4 kW
2
8 kW
1
8 kW
1
12 kW
2
5.7.10
Connecting the hydraulic back-up.
1. Connect the back-up boiler pump (live / neutral / earth) to the X4
connector on the EHC–05 central unit PCB in the indoor module.
2. Connect the dry ON/OFF contact in the back-up boiler to the X5
connector in the EHC–05 central unit PCB in the indoor module.
5.7.11
Connect and configure the power supply for the electrical
back-up
1. Remove the retaining screw.
2. Remove the protective cover.
3. Choose the total output of the electrical back-up based on the size of
the home and its energy performance.
Parameter settings
HP029 = 1
(1 Electrical Stage)
2 kW
2 kW
4 kW
8 kW
4 kW
4 kW
5 Installation
HP029 = 2
(2 Electrical Stages)
0 kW
4 kW
0 kW
0 kW
4 kW
8 kW
MIT-M
41
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