Connecting A Direct Heating Circuit And A Domestic Hot Water Tank - DeDietrich Innovens MCA 15 Installation And Service Manual

MCA 15 - MCA 25 MCA 25/28 MI
B
1 2
29/04/2010 - 300022146-001-B
SCU
TS + B A
3
4.10.6. Connecting a direct heating circuit and a
domestic hot water tank
0-10V S AMB C S AMB B
+ - 4 3 2 1 2 1 2 1
S SYST + TA - S ECS S EXT S DEP C
2 1 2 1 2 1 2 1 2 1
5
4
6
Do not connect anything to the terminal block.
A
Z
CAUTION
Do not connect anything to the Mr outlet on the
terminal block. The reversal valve is connected
to the PCU PCB in the boiler.
Connect the outside temperature sensor.
E
Connect a safety thermostat if the heating circuit is for
R
underfloor heating.
Remove the bridge.
4
Connect the wires from the safety thermostat to the
4
connector.
On/off
S AMB A OT
2 1
S DEP B
C002305-j
2 1
7
4. Installation
PCU
BL RL Tout Tdhw
8
35