L.B. White Oval 80 v.2 Owner's Manual And Instructions

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L.B. White Oval 80 v.2 Owner's Manual And Instructions Manual pdf 23 page image

Oval 80 v.2 and Sentinel v.2 Radiant Tube HeatersOwner’s Manual • Oval 80 v.2 and Sentinel v.223Ignition ControlThe ignition control sends and receives voltages tooperate or verify operation of components. Refer tothe following and Fig. 28 to understand the ignitioncontrol’s terminal designators if doing voltage checkson the control.L1: Line voltage to control from power supply.IND: Line voltage from control to fan motor.LED: Connection for control’s diagnostic light wiringharness.MV: 24 VAC from control to gas control valve.PS2: 24 VAC from air pressure switch back tocontrolPS1: 24 VAC from control to air pressure switch.W: 24 VAC from transformer to control. (without thisvoltage the ignition control will not function)FS: No terminal.R: No terminal.X: No terminal.C/COM: Control and burner ground.Also refer to “Operation Sequence” within this manualas needed to understand operation of the ignitioncontrol during a call for heat.FIG. 28Gas Pressure Checks■ The following is a typical procedure to be fol-lowed in checking gas pressures.■ Consult the dataplate on the heater or page 4in this manual for specific pressures. The gaspressures will vary depending upon fuel type.■ Gas pressure measured at the inlet to thegas valve is Inlet Pressure and gas pressuremeasured at the outlet of the gas valve is BurnerManifold PressureMATERIALS REQUIREDQuantity Description2 Gas pressure gauges capable ofreading up to 35 in. W.C. (may also beordered from L.B. White, part number00764)1 Bushing, 1/2 in.x 1/8 in.1 1/8 in. barbed fitting1 3/16 in. allen keyA. Preparation1. Disconnect the heater from the electrical supplyand close the fuel supply valve to the heater inlet.2. Remove the lower nipple and cap from the sedi-ment trap and install the bushing and 1/8 in. NPTbarbed fitting. See Fig. 29.FIG. 29GAUGEBUSHING1/8” NPTBARBEDFITTING