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manual abstract
See the table on this page for gas pressure requirements. Two pressure taps are provided on the insert's valve to check gas pressures. The taps are located to the right ofthe on/off/pilot knob (see Figure 14). The bottom tap is the inlet (supply) pressure side. To check inlet pressure (with the insert burning), insert a small phillips screwdriver intothe tap and turn a half turn counter-clockwise. Cover the tap with the line from a manometer and check the pressure. Close the tap gently but securely after completing the check. The manifold (outlet) tap is above the inlet tap. To check manifold pressure (with the insert burning at the high burn setting) insert a small phillips screwdriver into the tap andturn a half turn counter-clockwise. Cover the tap with the line from the manometer and check the pressure. Again, close the tap gently but securely after completing the check. Check the taps for gas leaks with a gas leak test solution (retighten if necessary). If the pressure is not sufficient, makesure the gassupplyline is large enough, the supply regulator is properly adjusted, and the total gas load for the residence does not exceed theamount supplied. The appliance and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/ psig. The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/ psig. Check with your gas supplier or plumber. Fuel Type Inlet Pressure Manifold Pressure Desired Minimum Maximum On Hi Fire On Lo Fire Natural Gas 7" WC 5" WC 10.5" WC 3.5" WC 1.7" WC LP Gas 11" WC 10.5" WC 13" WC 10" WC 5.4” WC Robertshaw Millivolt Gas Valve TH TP TP/TH The Manifold Inlet (Supply) (Outlet) Tap Figure 14 Pressure Tap lp and natural gas supplies Your Ravenna gas insert is equipped from the factory for use with natural gas only as specified on the Safety / Listing label attached to the appliance. This appliance can only be operated using propane gas (LP) if a certified fuel conversion kit provided by Lennox Hearth Products is installed by a qualified service technician. Also check the orifice size on the label on the igniter bracket. It must be the correct size for the fuel and altitude. Do not run propane tank dry. Running the tank dry may cause a hazardous condition due to pressure drop in empty tank. Solid fuel is NOT to be used with this unit. Air Shutter Adjustment The Ravenna gas insert has an air shutter control lever located behind the lower door on the insert's face and to the left of the gas valve (see Figures 15a & 15b). The lever is linked to the primary air shutter on the main burner. The air shutter regulates the amount of primary air the burner receives and therefore how clean the insert burns. The air shutter should only be adjusted by a qualified gas technician. The insert should burn for about 15 minutes with the logs installed before adjusting the air shutter. More air will result in shorter flames and less color, less air will result in bigger flames and more color. To adjust the air shutter, insert a regular screwdriver into the slide adjustment and slide it side to side (see Figures 15a & 15b). Caution: The air shutter should never be set so as to make the tips of the flames sooty or create sooting on the viewing glass, logs, or heat exchanger. If soot begins to form after burning, the air shutter should be opened gradually until the sooting condition stops. Gas quality and gas pressure may vary, which can affect the burning characteristics of the insert. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE. 13 Operating Instructions Pre-Lighting Checklist Be sure to check these items before the initial lighting of the insert: c The insert gas label corresponds to the gas supply available - that is "natural gas" for natural gas or "LP gas" for LP gas. c Gas pressure has been checked carefully - see Page 12. c All gas fittings have been checked for leaks. c All clearances to combustibles have been met-see Page 8. c All combustible materials have been removed from the area in front of the insert. c All vented areas of the insert face are unobstructed. c House is ventilated to clear initial paint curing odors - see Page 15. c All packaging materials have been removed from the firebox. c While insert is cool, fingerprints or other marks have been cleaned from any gold or nickel surfaces with denatured alcohol and a soft cloth. Marks left on these surfaces may become etched into the finish if not removed prior to burning the unit. c Brick panels and log set have been installed. c The glass door is in place and is properly sealed. Lighting Instructions The following is a copy of the operating and lighting instructions found with each insert: FOR YOUR SAFETY READ BEFORE OPERATING WARNING: I...