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© 2022 Staheli West
95
Diagram 3
Diagram 4a (2017-2022)
Boiler Water
Temp. Sensor
Boiler Sight Glass
Front Turn box
Y-Strainer
Pressure Relief
Valve
Low Water
Cutoff
Boiler Water
Level Sensor
Steam psi 1
Manual Steam
Pressure Gauge
Operating Pressure
Limit Switch (OPLS)
High Pressure
Limit Switch (HPLS)
Steam psi 2
Pigtail Valve
Feed Water
Temp. Sensor
Louver Actuator
Burner Nozzles
Burner Cone
Airflow Switch
Fuel Nozzle 2 psi
High Fire Sensor
Fuel Nozzle 1 psi
Low Fire Sensor
Generator
Controller
Flame Detector
Control Switch
Propane Solenoid
Valve
Fuel Safety
Solenoid Valve
Propane
Regulator
High Fire
Solenoid Valve
Low Fire
Solenoid Valve
Ignition Electrode
Ignition
Transformer
Fan Motor
Propane
psi Sensor
Burner Gun Assembly
Burner Gun
Assembly O-Ring