BOILER START-UP
19
The control panel offers the possibility to connect with a room thermostat. When the room
thermostat contact opens, the furnace function stops.
5.3.
Wiring diagram
Fig 8.
Control panel wiring diagram
Legend:
GS General ON/OFF switch
TS Safety thermostat
TM Furnace thermostat
TP Pump thermostat
VT Fan speed regulator
LP Pump indication lamp
SM Motor switch
SV Fan switch
TR Room thermostat
PE Grounding
Unscrew the control panel back plate to have access to the connection terminals in the interior.
Connect the main electrical supply to the terminals 1,2,3 as indicated. The fan is connected to
the terminals 10,11,12 and the pump to the terminals 4,5,6.
The motor phase is connected to the terminal 9, while neutral and grounding together with the
fan’s at terminals 12 and 11 respectively.
Between the terminals 7,8 there is a jumper. If you want to connect a room thermostat,
remove the jumper and connect it to these two terminals.
Attention: The room thermostat must be a simple contact interruptor. It is not
allowed to connect a digital thermostat with an electrical signal output!
