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24
OPERATING YOUR BURNER
HOW A STEAM SYSTEM OPERATES
The water in the boiler is heated until it reaches the boil-
ing point. As the water boils it turns into steam. The steam
rises from the top of the water through the supply main to
the radiation units. As it passes through the radiators it re-
leases its heat and condenses into water. The water returns
to the boiler through the return main. Most residential sys-
tems operate at less than 1 pound steam pressur
e.
FILLING SYSTEM WITH WATER
On steam heating systems the boiler is partially fi lled with
water. It is very important to the proper operation of the
entire system that your boiler be fi lled to the proper level.
The correct water level is about halfway up the glass water
level gauge as marked on the boiler jacket. To fi ll:
Close the boiler drain valve.
1.
Open the valves at the top and bottom of the glass
2.
water level gauge. Also open the drain valve at the
bottom of the gauge.
Open the fi ll valve and allow water to run into the
3.
boiler.
!
WARNING
Never run water Into a hot empty boiler.
Allow boiler to fi ll until water runs out the gauge drain
4.
valve. Then close the gauge drain valve.
Continue to fi ll boiler until water reaches the indicated
5.
water line. This is about halfway up the glass tube.
WATER LEVEL
The normal water level is shown on the right side of the
boiler and is 24” above the fl oor. The normal water level
is determined when the boiler is off and cold, i.e. when
all of the water in the system is inside the boiler and the
return piping below the water line, and everything above
the water line is air, no steam. When the boiler is making
steam, the water level will drop two to three inches below
the normal water line.
AUTOMATIC GAS VALVE
The Automatic Gas Valve opens or closes according to the
heat requirements of the thermostat and temperature limit
control. It closes if the pilot goes out. Each individual con-
trol must be operating correctly before any gas can pass to
the burners. Any one control can hold the gas supply from
burner regardless of the demand of any other control.
THERMOSTAT
Keep it set at a desired room temperature. If windows
are to be opened or heat is not needed, move thermostat
pointer to a lower setting.
NOTICE
In the event of failure of any component,
the system will not operate or will go into
safety lockout. The system is completely
self-checking. On every call for heat, each
component must be functioning properly
to permit operation. On safety lockout
the system has to be reset by turning the
thermostat to the lowest setting for one
minute, then back to the normal setting.