Boiler Type *
Fuel Type *
Refractory *
Heat Exchanger *
Burner/Burners *
Operating Temp Control *
Low Temp Control *
High Limit Temp Control *
Water Flow Switch *
Water Circulating Pump *
System Circulating Pump *
Pump Interlock *
Modulating Control *
Low Gas Pressure Switch *
High Gas Pressure Switch *
Combustion Air Switch *
Combustion Blower Interlock *
Low Water Cut Off *
Aux Low Water Cut Off *
Fuel Valve *
HSI Pilot Signal (Ω, V, mA) *
Main Flame Signal (Ω, V, mA) *
Pilot Flame Failure *
Main Flame Failure *
High Water Alarm *
Pressure Relief Valve *
Water Fill Valve/Control *
Water Level Control *
Operating Pressure Control *
Low Pressure Control *
High Limit Pressure Control *
Fuel Valve POF *
Low Oil Pressure Switch *
High Oil Pressure Switch *
Atomizing Steam Switch *
Atomizing Air Switch *
Oil Pump Pressure *
Boiler Alarm *