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)