Download Manual Merlin V3

Choice of installation
Part 4: Installation and Start-up
Installation 05 = 2HS controller =>
2 HS cascade switched via relay
Terminal assignment
Sensors
Mains
1+GND
Outdoor sensor
2+GND
Collector sensor
3+GND
Storage tank sensor
4+GND
Flow sensor Heatcircuit 2
5+GND+6 Optional FBR2 (FBR1) for Heatcircuit 1
6+GND
Optional room sensor for Heatcircuit 1
7+GND
---8+GND
Flow sensor Heatcircuit 1
9+GND
Optional hot-water tank bottom
10+GND - - - 11+GND - - - 12+GND+13 Optional FBR2 (FBR1) for Heatcircuit 2
13+GND Optional room sensor for Heatcircuit 2
14+15
Optional eBUS DCF
16+17
Data line CAN-BUS
18+19
Power supply CAN BUS
20
21
24
25
26
27
28
29+30
32+33
34
35
36
37
38
44
N-conductor, mains
Power supply, unit
Pump, Heatcircuit 1
Pump, Heatcircuit 2
Storage charging pump
Mixing Valve, Heatcircuit 2 open
Mixing Valve, Heatcircuit 2 closed
HS1
HS2
Mixing Valve, Heatcircuit 1 open
Mixing Valve, Heatcircuit 1 closed
Pump HS1
Pump HS2
Power supply of relay via fuse
(e.g. bridge to 22 = L1´)