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Refer to this manual. For assistance or additional information consult a qualified installer, service agency or the gas supplier. FOR YOUR SAFETY WHAT TO DO IF YOU SMELL GAS • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building. • Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. • If you cannot reach your gas supplier, call the fire department. A WARNING Before performing recommended maintenance, be sure main power switch to unit is turned off. Electrical shock could cause personal injury. Your rooftop combination heating/cooling unit is equipped with an automatic direct spark ignition and induced draft combustion blower. A WARNING Do not attempt to light by hand; personal injury may result. TO LIGHT UNIT A DANGER 1. Do not turn off the electrical power to unit without first turning off the gas supply. 2. Before attempting to start the gas heating section, familiarize yourself with all the procedures that must be followed. If you do not follow these instructions exactly, a fire or explosion may result, causing property damage, injury or loss of life. INTAKE LOUVERS BURNER ACCESS PANEL Fig. 1 — Gas Valve Location See Fig. 1 for location of gas valve. Refer to Fig. 2 while proceeding with the following steps. Step 1 - setting and Step 2 -Step 3 — Step 4 — Step 5 — wise Step 6 — >o Set room thermostat to the lowest temperature set SYSTEM switch to HEAT position. Close the manual gas valve. Turn off the electrical supply to the unit. Remove the burner compartment access panel. Turn the control dial on the gas valve clock-to the OFF position and wait 5 minutes. Turn control dial on gas valve counterclock-to the ON position. Step 7 — Replace the burner compartment access panel. Step 8 — Turn on the electrical supply to unit. Step 9 — Open the manual gas valve. Step 10 — Set room thermostat selector slightly above room temperature to start unit. The induced-draft combustion air fan will start. Main gas valve will open and main burners should ignite within 4 seconds. If the burners do not light, there is a 60 second delay before another 4 second try. If the burner still does not light, the time delay is repeated. If the burner does not light on the 11th attempt, there is a lockout. Repeat Steps 1 - 10. If burners still do not light, call for service. Step 11 — Set the temperature selector on room thermostat to desired setting. A WARNING If the main burners fail to light, or the blower fails to come on, shut down gas heating section and call your dealer for service. Failure to follow these requirements could result in serious personal injury. Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book|1 |4 PC 111 Catalog No 564-906 Printed in U.S A Form 48D.L-2SO Pg 1 10-91 Replaces: 48D.L-1 SO STEP 1 STEP 2 STEP 3 STEP 4 48DJD,LJD005-009 48DJD.LJD012,014 48DJE;LJE004-007 48DJE.LJE008-012 STEP 5 48DJD.LJD005-009 48D J E, LJ E004-007 48DJD.LJD012,014 48DJE,LJE008-012 STEP 6 \V\-\\U«l 111 •lllblll 50 60 70 80 TO SHUT UNIT OFF A WARNING 1. Do not turn off the electrical power to unit without first turning off the gas supply. 2. Never attempt to manually light the main burners on unit with a match, lighter, or any other flame. If the electric sparking device fails to light the main burners, refer to the following shutdown procedures, then call your dealer as soon as possible. Failure to follow these procedures can result in serious fire or personal injury. Refer to Fig. 3 while proceeding with the following steps. Step 1 — Set room thermostat to lowest temperature setting and set SYSTEM switch to OFF. Step 2 — Close the external manual gas valve. Step 3 — Turn off elec...

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