RED PRIMULA - Wiring Diagram: With DHW Kit

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16-WIRING DIAGRAM
ELECTRICAL DIAGRAM OF PRIMULA/ORCHIDEA Hydro WITH DOMESTIC HOT WATER KIT
MOTHERBOARD WIRING KEY
1. FUSE
2. BOARD PHASE
3. BOARD NEUTRAL
4. SMOKE EXPULSION FAN
5. ROOM FAN
6. PELLETS SAFETY THERMOSTAT
7. WATER TEMPERATURE OVERLOAD PROTECTOR
8. SPARK PLUG
9. WATER PRESSURE SWITCH
10. AIR PRESSURE SWITCH
11. AUXILIARY BOILER CONNECTION (TERMINAL BLOCK)
12. FEED SCREW
13. SMOKE PROBE
14. EXTERNAL THERMOSTAT CONNECTION (TERMINAL BLOCK)
15. INTERNAL ROOM PROBE
16. PUFFER/BOILER PROBE CONNECTION (TERMINAL BLOCK)
17. BOILER WATER TEMPERATURE PROBE
18. SMOKE EXTRACTOR FAN REVOLUTIONS CONTROL
19. FLOW SWITCH
20. 3-WAY VALVE PHASE (DOMESTIC)
21. 3-WAY VALVE PHASE (HEATING)
22. PUMP PHASE
23. PUMP NEUTRAL
24. 3-WAY VALVE NEUTRAL
25. CONTROL PANEL
N.B. The wiring of the individual components is tted with pre-wired connectors of dierent sizes.
LIVE ELECTRIC CABLES
DISCONNECT THE 230 V
POWER CABLE BEFORE
CARRYING OUT ANY
OPERATION ON THE
CIRCUIT BOARDS