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Heater component function – L.B. White I-17 Infraconic Spark Ignition User Manual

Page 25

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Heater Component Function

Burner Orifice

Metering device used to feed gas to combustion cones at a

specific flow rate.

Double Combustion Chamber

Made of special alloy steel. This is where combustion of gas

occurs, providing radiant heat used in the warming process.

Gas Control Valve

Component that houses electromagnet which is energized by

voltage and therefore opens or closes to supply or shut off

the flow of gas to the burner.

Gas Hose

Flexible connector used to convey gas from gas supply line

to inlet of heater.

High Limit Switch

Safety device wired into the heater’s electrical supply which

is used to open the electrical circuit to the ignition control

module in the event of an overheat condition.

Igniter

Electrical ignition device used on automatic ignition control

systems. Ignites gas by spark.

Ignition Control Module

Electronic device which controls the ignition sequence and

operation of the heater.

Injector Body

Allows combustion air to be drawn in to injector tube with

gas flow for combustion.

Injector Tube

Tubular steel neck connecting the gas control valve and

burner orifices to the combustion cones. Gas is fed to the

combustion cones through the injector tube.

Manual Shut Off Valve

It’s purpose is to shut off gas flow to the appliance if

maintenance or service are required, or if an emergency

situation occurs. When the handle on the manual valve is

turned parallel to gas flow, the valve is completely open

delivering full gas supply to the appliance. Turning handle

perpendicular (90°) to gas flow shuts off gas flow.

On/Off Switch

Simple electrical device used to connect or disconnect

incoming voltage at the ignition control box on the heater.

Shroud

Reflective aluminum heat shield for heater.

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