Ventilation Air Fan
The ventilation air fan (1) is a "squirrel cage" type fan and provides ventilation air supply.
Ventilation Air Fan Motor
The ventilation air fan motor (2) drives the ventilation air fan assembly and fuel pump.
The fuel pump (3) draws fuel from either the ASH's internal fuel tank or the external fuel source and pressurizes and
supplies it to the burner assembly.
The low pressure fuel filter (4) removes dirt, debris, and moisture from the fuel before it enters the pump.
The fuel solenoid valves (5) control the flow of fuel during operation.