6.8.3
Routing the cables
Caution
Separate the sensor cables from the 230/400 V circuit cables.
Secure all the cables exiting the indoor unit using the traction
arrester devices supplied in the accessories bag.
1 230 V~ circuit cables
2 0-40 V safety extra-low voltage cables
3 230 - 400 V electrical back-up power supply cables (only for
models with an electrical back-up)
6.8.4
Description of the connection terminal blocks
Possible connections
Several heating zones can be connected to the EHC–05 and SCB-10
PCBs. The options can be increased with the optional AD249 PCB.
The connections for the sensors or pumps of each zone are on each PCB.
Tab.30
Circuits
CIRCA0
(EHC–05)
DHW
(EHC–05)
CIRCA1
(SCB-10)
CIRCB1
(SCB-10)
CIRCC1
(with
AD249 op
tion)
CIR
CAUX1
(with
AD249 op
tion)
DHW1
(SCB-10)
Convection fan
X
X
X
X
Underfloor heating
X
X
X
Radiator
X
X
X
X
365 day radiator
X
X
X
X
Continuous heating
X
X
X
X
Timer programme
X
X
X
X
X
Swimming pool
X
X
X
Domestic hot water production
X
X
X
X
X
X
Domestic hot water production, electric
only
X
X
X
X
Stratified tank (2 sensors)
X
X
Buffer tank used as a low-loss header
X
X
X
X
X
X
X
Fig.37
MW-1001201-1
230-400V
230V
0-40V
230V
0-40V
1
3
2
6 Installation
38
7762758 - v05 - 19082020
