TM 10-3510-220-10
2-2.
LOCATION AND USE OF CONTROLS AND INDICATORS. (CONT)
Key
Control or Indicator
Function/Use
12
13
14
15
16
17
18
Blower Shutter
Increases or decreases amount of air to burner.
a. Shutter turned downward increases amount
of air to burner.
b. Shutter turned upward decreases amount of
air to burner.
Petcock Valve
Allows operator to drain excess fuel from
combustion chamber.
Drain Valve
Allows operator to drain water from water
heater.
UV Scanner
Initiates safety shutdown if flame inside burner
goes out.
Burner Spark Sight Glass
Allows the operator to observe ignition spark.
Sight Glass Assembly
Allows the operator to observe flame inside
burner assembly.
Hot Water Output Valve
Controls hot water output from the water heater
to the washer.
2-9
