4.4.3.
Connecting two circuits and a domestic hot
water tank
L000160-D
7
8
11
10
6
5
1
2
4
9
3
TS +
B
A
B
0-10V
S AMB C
4 3 2 1
2 1
+ -
S AMB B
2 1
S AMB A
2 1
S SYST + TA -
S ECS
S EXT
S DEP C
2 1
2 1
2 1
2 1
2 1
S DEP B
2 1
TS +
C
AUX
C
SCU
On/off
OT
BL
RL
PCU
PUMP
A
Do not connect anything to the terminal block.
Z
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.
E
Connecting an additional circuit to the AD249 option.
R
Connect the heating pump (circuit
A
).
If underfloor heating is being used, put a safety
thermostat in place after the heating pump. The
safety thermostat will shut down the heating
pump in the event of overheating.
Diematic iSystem For C 330 / C 630 ECO
4. Installation
31082018 - 7600691-001-06
14
