2.3 Schematic Diagram of Operating
2.3.1 Schematic Diagram at the Heating Water Supply
Expansion Tank
Heating Temperature
Sensor
Fan Assembly
3-Way Valve
Domestic Water
Heat Exchanger
Heating Flow Sensor
Circulator Pump
Heating Strainer
Circulator Pump
Heating Strainer
Flue Exhaust
Combustion Air Inlet
Main Heat Exchanger
Heating Return
- 7 -
3-Way Valve
Heating Supply
Room Heating(Heating Coil, Radiator)
KDB-GOM
Series
Exhaust Duct
High Limit Fuse
Main Heat Exchanger
High Limit Sensor
Flame Detector
Electrode
Burner Assembly
Nozzle Holder Assembly
Air Pressure Switch
Modulating
Gas Control Valve
Hot Water Flow Switch