TM 3-4230-218-12&P
2-3.
CONTROL PANEL CONTROLS AND INDICATORS.
KEY CONTROL OR INDICATOR
FUNCTION
1
2
3
4
5
6
7
8
9
2-4
THERMOSTAT SELECTOR
This three position switch selects the
OPEN MAG VALVE
START BURNER
WATER PRESSURE
GAGE
WATER PRESSURE
REGULATOR
BURNER CHOKE
BURNER FUEL VALVE
FUEL PRESSURE GAGE
WATER TEMPERATURE
maximum temperature of the outgoing
water.
Indicates whether or not the burner is
operating.
This momentary contact switch is used
to ignite the burner.
Indicates the outgoing water pressure.
A valve that regulates the output
pressure and volume of the unit.
A damper device used to limit the air-
flow past the heater spark plug during
ignition.
A valve that controls fuel to the bur-
ner.
A pressure gage that indicates the
output pressure of the heater fuel
pump.
This gage indicates the temperature of
the outgoing water.
