4.4
Electrical connections
4.4.1.
Connecting a direct heating circuit
A
Connect the outside temperature sensor.
SCU-S05 PCB = Option
Z
Heating connection pump.
E
Connect a safety thermostat if the heating circuit is for
underfloor heating.
4
Remove the bridge.
4
Connect the wires from the safety thermostat to the
connector.
4.4.2.
Connection in cascade (with OpenTherm
AD287) option
A
Master boiler (DIEMATIC iSystem)
Z
Secondary boiler (DIEMATIC iSystem or IniControl)
E
Secondary boiler (DIEMATIC iSystem or IniControl)
R
Cable
BUS
M002709-C
1
3
2
On/off
OT
BL
RL
PCU
SCU-S05
PUMP
ECS
S EXT
S DE
2 1
2
1
M002710-C
5 6
7
8
90
1
2
3
4
6
7
8
5
1
2
4
4
3
On/off
OT
BL
RL
PCU
PUMP
OTH / MB
INTERFACE
OTH
9
10
11
12 13
4. Installation
IniControl For C 330 / C 630 ECO
11
260216 - 7600717-001-06