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Resumen del manual
Discard all removed components. Step 7. Install the new pressure regulator assembly using the supplied screws. Tighten the screws with a torque of 25 lb-in. Step 8. Install the enclosed identifi cation label to the valve body where it can be easily seen. Step 9. Refer to Figure 38. Remove the pilot hood assembly to access the hexed pilot orifi ce. Remove and replace the orifi ce with the one provided with the kit. Exercise extreme care to prevent damage to or breakage of the igniter assembly. Figure 37: Regulator Conversion Pressure Regulator Remove These Components Electronic Valve Millivolt Valve Model Series Nat.Gas drill size (inches) Propane drill size (inches) MPB33 #47 (.0785") * 99K74 • (.048")* 99K78 • MPB35 #44 (.086") * 60J80 • #55 (.052") * 19L52 • MPB40 #38 (.102") * 99K76 • (.0625") * 21L01 • MPB45 #36 (.104") * 24M10 • #52 (.0635") * 37G00 • Table 11: Burner Orifi ce Sizes Elevation 0–4500 ft ( 0–1372 m) * Standard size installed at factory • Part /Cat. Number Figure 39: Orifi ce Pilot Orifice Figure 38: Millivolt Pilot Step 10. Remove the burner orifi ce from the manifold and replace it with the one provided in the kit. See Table 11 for orifi ce sizes for natural and propane models. Figure 39 illustrates the orifi ce. Use pipe joint compound or Tefl on tape on all pipe fi ttings before installing (ensure propane resistant compounds are used in propane applications, do not use pipe joint compounds on fl are fi ttings). Step 11. Retrieve the burner and hold the venturi tube above the orifi ce. Set the burner assem bly into position and secure with the two screws previously removed. Step 12. Reassemble the remaining components by reversing the procedures outlined in the Steps 1–5. Step 13. Attach the conversion label provided in the conversion kit next to the rating plate on the appliance. Step 14. Turn on gas supply and test for gas leaks (refer to Page 27). Step 15. Reapply electrical power at the circuit breaker. Step 16. Relight the main burner. The lighting instructions can be found on the lighting label in the control compartment or in the Care and Operation Manual provided with the appliance. Verify proper burner ignition and operation. See Burner Adjustments and Burner Flame Appearance on Page 19. Step 17. Inspect the pilot system for proper fl ame. The pilot fl ame should engulf the fl ame sensor as shown in Figure 23 on Page 14. Step 18. Using a manometer, test the inlet and manifold gas pressures (see Tables 3 and 4 on Page 4). ALWAYS TEST PRESSURES WITH THE REGULATOR CONTROL VALVE AT THE HIGHEST SETTING. Lennox Hearth Products reserves the right to make changes at any time, without notice, in design, materials, specifi cations, prices and also to discontinue colors, styles and products. Consult your local distributor for fi replace code information. LENNOX®, the LENNOX design, DAVE LENNOX, the image of DAVE LENNOX and other related LENNOX marks are registered or common law trademarks of Lennox Industries Inc. and are used...
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