Heater Component Function - L.B. White Premier 350 Owner's Manual And Instructions

Heater Component Function

Air Proving Switch
Safety device used to insure that the proper air fl ow is
being achieved before the gas valve is opened.
Belt
Friction drive component used for transmission of
power from motor to fan shaft. Used in conjunction
with motor and fan sheaves.
Burner
Cast iron component used to channel gas and provide
an area at which the fuel may ignite.
Burner Orifi ce
Brass metering device used to feed gas to burner at a
specifi c rate.
Direct Spark Ignition Control Module
Electronic printed circuit board which sends and
receives voltages to various controls in an automatic
ignition system. An important safety feature of the
control board is that it will shut down the entire heater,
thereby stopping the fl ow of fuel gas if burner fl ame
goes out.
Fan Housing
Chamber used for delivering air for effi cient air move-
ment.
Fan Wheel
Component used in conjunction with the motor and fan
housing to pull the hot air from heater and blow it into
room for heating (also known as a squirrel cage).
Gas Control Valve
Electrical device consisting of a low pressure regulator
and electrical solenoids used for the control of gas fl ow
to the burner assembly. A feature of the control valve is
a built-in gas shut off which may be used to isolate the
heater from its gas supply when servicing.
Gas Hose
Flexible connector used to convey gas from supply line
in building to heater.
Gas Selector Valve (DF Heaters Only)
Allows easy gas conversion depending on gas being
supplied at job site. Eliminates the need for changeout
of the burner orifi ceand resetting of the gas control
valve.
Heat Chamber
Metal fi re box within the appliance that provides an
area where burner fl ame mixes with combustion air,
thereby providing heat.
Premier Ductable Heaters
High Limit Switch
Safety device wired into the control system which is
used to break an electrical circuit to the gas control
valve in event of overheat situation.
Igniter
Ignition device used on automatic direct spark igni-
tion control systems. Ignites gas by spark.
Motor
Electric device used to force preheated air through
the heater and to circulate heat within a certain area.
Converts electrical energy into mechanical energy.
Motor Relay
Electrical component wired between ignition control
and motor. Used to feed voltage to motor upon
receipt of voltage from ignition control.
Pulleys
Grooved friction drive components responsible for
transmission of power from motor to fan shaft. Used
in conjunction with V-Belt.
Regulator
Mechanical device used in L.P. and natural gas
distribution systems to reduce a higher inlet pres-
sure to a preset lower pressure. The regulator is
responsible to supply a steady outlet pressure to the
heater(s) despite changes in inlet pressure, heater
demand and weather conditions.
Selector Switch
Electrical device which is used to allow the end user
to use the heater in either a heating or ventilation
application.
Thermostat
Electrical device used as an automatic "on/off"
switch which will respond to changes in temperature
in a certain area. Can be wired so contacts in the
thermostat open or close on temperature increase
or decrease.
Transformer
Electrical control used to accept line power supply
primary voltage and reduce it to lower secondary
voltage.
Owner's Manual • Premier 350
39