Supplied By www.heating spares.co Tel. 0161 620 6677
11
13. Boiler wiring diagram
TS – pressure switch 0,8 Bar
HT – over heat thermostat 100°C
PT – operating thermostat max. 85°C
PR1,PR2 – room thermostat 230 V / 0,1 A
HDO – ripple control
S-HDO – RC contactor
K1,K2 – cascade output (only 21 kW and 24 kW)