L.B. White Classic 346 Owner's Manual And Instructions

L.B. White Classic 346 Owner's Manual And Instructions Manual pdf 25 page image

Classic Agricultural Animal Confinement Building HeatersOwner’s Manual • Classic25Gas Pressure Checks■ The following explains a typical procedure to be fol-lowed in checking gas pressures.■ The gas pressures will vary depending upon fuel type.■ Consult the dataplate on the heater or page 4 in thismanual for specific pressures to be used in conjunc-tion with this procedure.■ Gas pressure measured at the inlet to the gas valveis Inlet Pressure and gas pressure measured at theoutlet of the gas valve is Burner Manifold Pressure.A. Preparation1. Obtain two pressure gauges capable of reading up to35 in. W.C.2. Disconnect the heater from the electrical supply andclose the fuel supply valve to the heater inlet.3. Brush or blow off any dust and dirt on or in the vicinityof the gas control valve.B. Gauge Installation1. Locate the inlet and outlet pressure taps, see Fig.42. Remove the pressure tap plug using a 3/16 in.allen key.FIG. 42 OUTLET PRESSURE TAPINLET PRESSURE TAPONOFFWARNING■ Do not disassemble the gas control valve.■ Do not attempt to replace any components of thegas control valve.■ The gas control valve must be replaced if anyphysical damage occurs to the control valveassembly.■ Failure to follow this warning will result in fire orexplosions, leading to injury or death to humans,and property damage.2. Securely connect a pressure gauge to each pressuretap.3. Open the fuel supply valves to the heater and recon-nect the heater electrical supply.4. Start the heaterC. Reading Pressures1. With the heater operating, the pressure gaugesshould read the pressures specified on the dataplate.2. Do the readings at the inlet and outlet pressuregauges agree with that specified on the dataplate?If so, then no further checking or adjustment isrequired. Proceed to section D.3. If the inlet pressures do not agree with that specifiedon the dataplate, then the regulator controlling gaspressure to the heater requires adjustment.4. If the inlet pressures are correct and the burnermanifold pressure does not agree with that specifiedon the dataplate, then the gas control valve’s internalpressure regulator requires adjustment. See Fig. 43for regulator location.FIG. 43LOW PRESSURE GUAGEOUTLET PRESSURE TAPINLET PRESSURE TAPLOW PRESSURE GUAGEEXAMPLE SHOWS PRESSURE FOR PROPANE GASALWAYS REFER TO PRESSURE ON DATAPLATEOFFONINTERNAL PRESSURE REGULATORD. Completion1. Once the proper inlet and burner manifold pressureshave been confirmed and/or properly set, close thefuel supply valve to the heater and allow the heater toburn off any gas remaining in the gas supply line.2. Disconnect the heater from its electrical supply.3. Remove the gauges and connecting hoses.4. Install pressure tap plugs and tighten securely.Check for gas leaks.