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

Also see for Oval 80: Owner's manual and instructions

L.B. White Oval 80 v.2 Owner's Manual And Instructions Manual pdf 25 page image

Oval 80 v.2 and Sentinel v.2 Radiant Tube HeatersOwner’s Manual • Oval 80 v.2 and Sentinel v.225TroubleshootingInformationREAD THIS ENTIRE SECTION BEFORE BEGIN-NING TO TROUBLESHOOT PROBLEMS.The following troubleshooting guide provides proce-dures for isolating equipment problems. This guideis intended for use by a QUALIFIED GAS HEATERSERVICE PERSON. DO NOT ATTEMPT TOSERVICE THESE HEATERS UNLESSYOU HAVE BEEN PROPERLY TRAINED.TEST EQUIPMENT REQUIREDThe following pieces of test equipment will berequired to troubleshoot this system with minimal timeand effort.• Digital Multimeter - for measuring AC voltageand resistance.• Low Pressure Gauge - for checking inlet andoutlet pressures at the gas control valve againstdataplate rating.■ Visually inspect equipment for apparent damage.■ Check all wiring for loose connections and wornRefer to the system operation sequence in thissection to gain an understanding as to how the equip-ment operates during a call for heat. Understandingthe sequence of operation of the ignition module andrelated components is esential as it will relate directlyto problem solving provided by the flow charts.The ignition control module is self-diagnostic. The redLED on the burner box will flash a specific light pat-tern depending upon the problem which is diagnosed.To effectively use the flow charts, you must firstidentify what the problem is by the light pattern of thered diagnostic light.WARNING■ This heater can start at any time.■ Troubleshooting this system may requireoperating the unit with line voltage present andgas on. Use extreme caution when working onthe heater.■ Failure to follow this warning may result inproperty damage, personal injury or death.A flashing light indicates a problem.The flash pattern will be followed by a pause and then arepeat of the flash pattern until the problem is corrected.Refer to the tables below to identify what page to referto when troubleshooting any problems.Problems PageON L.E.D. light is not ON, heater is not operating ... 26L.E.D. diagnostic light is flashing:A. Rapid Flash .................................................... 27B. One Time........................................................ 27C. Two Times ...................................................... 27D. Three Times ................................................... 28E. Four Times ..................................................... 28F. Five Times ...................................................... 28Components should be replaced only after each stephas been completed and replacement is suggestedin the flow chart. Refer to the Servicing sections asnecessary to obtain information on disassembly andreplacement procedures of the component once theproblem is identified by the flow chart.DIRECT IGNITION OPERATION SEQUENCE:-- Line voltage is sent to ignition control and totransformer.-- Transformer reduces line voltage to 24 volts which issent to ignition control.-- Ignition control module performs self safety check.-- Internal components are tested.-- Air pressure switch circuit is checked.-- Ignition control module begins ignition trial sequence.-- Ignition control module sends 24 volts to air pressureswitch.-- Ignition control sends line voltage to motor.-- Fan motor starts.-- Green LED is illuminated.-- Air pressure switch contacts close and 24 volts arereturned to the ignition control module.-- Ignition control module sends high voltage to theigniter electrode.-- Igniter sparks.-- Ignition control module sends 24 volts to the gascontrol valve.-- Gas control valve opens.-- Ignition occurs.-- Igniter continues to spark for 4 seconds-- Ignition spark is cut off.-- Gas valve stays open.-- Building controller shuts heater down.-- Process starts again on a call for heat.