Heater Component Function - L.B.White Guardian AD060 Manual Del Usuario E Instrucciones

Guardian LP or Natural Gas Heater
32

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.
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.
Fan Housing
Chamber used for compressing air for effi cient air
movement.
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
A device which consists of a low pressure regula-
tor and electrical solenoids which are used for
the control of gas fl ow to the burner assembly. A
feature of the control is a built in gas shut off which
is 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.
Heat Chamber
Metal fi re box within the appliance that provides an
area where burner fl ame mixes with combustion air
thereby providing heat.
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 / Flame Sensor Assembly
This assembly consists of two components
mounted together on the same bracket.
- Spark igniter: Electrical ignition device used on
automatic ignition control systems. Ignites gas
by a spark.
- Flame Sensor: Also known as a fl ame rod or
fl ame probe, this device works in conjunction
with the ignition module in proving that burner
fl ame has been established.
Owner's Manual • Guardian
Ignition Control Module
Controls the ignition sequence and operation
of the heater as well as monitoring the safety
sevices. A major service feature is the board's
ability to diagnose component and fl ame failure
by means of a diagnostic light located within the
module. This light will provide a specifi c fl ash
pattern repetitively, depending on the type of
componenet failure that has occurred.
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.
Regulator
The heart of any gas supply installation. Used to
deliver a working pressure to the heater under
varying conditions in tank pressure.
Thermostat
Electrical device used as an automatic on/off
switch which will respond to changes in tempera-
ture in a certain area. Can be wired so contacts
in the thermostat open or close on temperature
increase or decrease.
Throttle Valve
Manually adjustable component used to increase
or decrease the fl ow of gas to the burner. The
throttle valve is located between the gas control
valve and burner assembly.
Transformer
This device is responsible for reducing a higher
incoming voltage (normally 120 V.A.C.) to a
lower outgoing voltage. The lower voltage (24
V.A.C.) is essential to operate the ignition control
module.