L.B. White SENTINEL AT 150 Owner's Manual And Instructions

L.B. White SENTINEL AT 150 Owner's Manual And Instructions Manual pdf 29 page image

Heater Component FunctionBurnerCast iron component used to channel gas and provide anarea at which the fuel may ignite.Burner OrificeBrass metering device used to feed gas to burner at aspecific rate.Burner TubesConducts the heat provided by the ignition of fuel gas at theburner.Differential Air Pressure SwitchSafety device used to insure that proper positive andvacuum pressures are within the burner box before the gasvalve is opened.Direct Spark Ignition Control ModuleElectronic printed circuit board which sends and receivesvoltages to various controls in an automatic ignition system.An important safety feature of the control board is that it willshut down the entire heater, thereby stopping the flow offuel gas if burner flame goes out.Fan HousingChamber used for delivering air for efficient air movement.Fan WheelComponent used in conjunction with the motor and fanhousing. It is used to create pressures within thed burnerbox used in the distribution of burner flame down the burnertubes.Gas Control ValveElectrical device consisting of a low pressure regulator andelectrical solenoids used for the control of gas flow to theburner assembly. The control is available as single stage ortwo stage. A feature of the two stage control valve is it’sability to modulate from a first stage (minimum) heatposition to a second stage (maximum) heat position, ifneeded, to satisfy the temperature requirements of thebuilding. This results in less temperature variation andpotentially lower fuel consumption.Gas HoseFlexible connector used to convey gas from supply line inbuilding to heater.IgniterIgnition device used on automatic direct spark ignitioncontrol systems. Ignites gas by spark.MotorElectric device used to force air through burner box to createpressure used in the ignition of the heater.ReflectorPolished aluminum canopy supported over the burnertubes. Used to gather and reflect the radiant heat providedby the burner tubes back down to ground level.RegulatorMechanical device used in L.P. and natural gas distributionsystems to reduce a higher inlet pressure to a preset lowerpressure. The regulator is responsible to supply a steadyoutlet pressure to the heater(s) despite changes in inletpressure, heater demand and weather conditions.ThermostatA component which responds to a change in temperature .This component is available for single stage or two stageheating. The two stage thermostat incorporates twoindependent control circuits which interconnect to theheater’s two stage gas control valve, thereby providing lowor high heat depending on thermostat setpoint.TransformerElectrical control used to accept line power supply primaryvoltage and reduce it to lower secondary voltage to operatecertain control systems.29

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