5 Connecting diagrams and configuration
5.1
Installation with electrical back-up, two circuits and a domestic hot water tank
Fig.13
Connect CIRC A0 to EHC–05 and CIRC B1 to SCB-10
CIRCB1 CIRCA0
MW-1001774-1
BUS
230V - 400V 50Hz
230V - 400V 50Hz
5
6
6
M
M
230V - 400V 50Hz
θ
8
7
9
1
3
4
11
10
1 Outdoor unit
3 Three-way internal valve kit
4 Domestic hot water sensor
5 Refrigerant connection 5/8" – 3/8", 5 m
6 Heating/domestic hot water reversing valve
7 Indoor unit
8 Safety thermostat
9 Outdoor temperature sensor
10 Thermostat connected to circuit A
11 Connected thermostat for circuit B
5.1.1
Make the electrical connections
1. Connect the accessories and options to the EHC–05 PCB, respecting
the 230-400 V and 0-40 V cable feed-throughs.
2. Connect the accessories and options to the SCB-10 PCB, respecting
the 230-400 V and 0-40 V cable feed-throughs.
The icons corresponding to the B1 and domestic hot water circuit
appear on the user interface. The A0 circuit icon is present as
default.
5 Connecting diagrams and configuration
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7762758 - v05 - 19082020