Connecting Two Circuits And A Domestic Hot Water Tank Before The Mixing Tank - DeDietrich Innovens MCA 15 Installation And Service Manual

MCA 15 - MCA 25 MCA 25/28 MI
C TS +
B
1 2
3
29/04/2010 - 300022146-001-B
4.10.7.
SCU
C AUX
5
TS + B A
4
6
7
A
Z
E
R
T
Connecting two circuits and a domestic hot
water tank before the mixing tank
0-10V S AMB C S AMB B S AMB A
+ - 4 3 2 1 2 1 2 1 2 1
S SYST + TA - S ECS S EXT S DEP C S DEP B
2 1 2 1 2 1 2 1 2 1 2 1
8
9
10
Do not connect anything to the terminal block.
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.
Connect a safety thermostat if the heating circuit is for
underfloor heating.
Remove the bridge.
4
Connect the wires from the safety thermostat to the
4
connector.
Connecting an additional circuit to the AD249 option.
PCU
On/off
OT BL RL
C002367-F
12
11
4. Installation
Tout Tdhw
13
37