Complete combustion of the gas requires, but is not limited to, correct gas pressure and gas flow rate, adequate combustion air and proper venting. A WARNING Carbon monoxide gas is invisible, odorless, and toxic. Exposure to carbon monoxide gas can cause personal injury and even death to all occupants, including pets. Any item that is powered by, or gives off heat from, a combustion process (including lawn mowers, automobiles, and fireplaces) has the potential to produce carbon monoxide gas. Because of this, Lennox recommends the use of a carbon monoxide detector in your home, even if you do not own gas appliances. Reliable detectors are available at reasonable retail prices. Contact your Lennox dealer for more details about this investment in your safety. Your furnace is designed to meet standards set by national agencies. It should operate safely when properly installed and maintained. However, the unit's performance can be greatly impacted by the individual installation and the operating environment. It is your responsibility to ensure that this appliance is maintained. Proper maintenance is critical for your safety and the satisfactory operation of the product. Lennox strongly recommends annual inspection and maintenance of this appliance. Contact your Lennox dealer for an inspection by a qualified service technician. Lighting Information & Operation AWARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or death. Page 3 BEFORE LIGHTING smell all around the appliance area for gas. Be sure to smell next to the floor because some gas is heavier than air and will settle on the floor. The gas valve on the G60UH(X) is equipped with either a gas control knob or lever. Use only your hand to turn the gas control knob or push the gas lever. Never use tools. If the knob or lever will not move by hand, do not try to repair it. Call a qualified service technician. Force or attempted repair may result in a fire or explosion. Placing the G60UH(X) furnace into operation: G60UH(X) units are equipped with a SureLight® ignition system. Do not attempt to manually light burners on these furnaces. Each time the thermostat calls for heat, the burners will automatically light. The ignitor does not get hot when there is no call for heat on units with the SureLight® ignition system. Operating the Gas Valve (Figures 3 and 4) 1 - STOP! Read the safety information at the beginning of this section. 2- Set thethermostattothelowestsetting. Seefigure2. 3 - Turn off all electrical power to the unit. THERMOSTATS FIGURE 2 4 - This furnace is equipped with an ignition device which automatically lights the burners. Do not try to light the burners by hand. 5- Removetheupperaccesspanel. 6 - White Rodgers 36E Gas Valve - Switch gas valve le- ver to OFF. See figure 3. Honeywell VR8205 Gas Valve - Turn knob on gas valve clockwise^^ to OFF. Do not force. See figure 4. 7 - Wait five minutes to clear out any gas. If you then smell gas, STOP! Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions. If you do not smell gas go to next step. 8 - White Rodgers 36E Gas Valve - Switch gas valve lever to ON. See figure 3. Honeywell VR8205 Gas Valve - Turn knob on gas valve counterclockwise^^ to ON. Do not force. See figure 4. WHITE RODGERS 36E SERIES GAS VALVE GAS VALVE SHOWN IN OFF POSITION FIGURE 3 HONEYWELL VR8205 SERIES GAS VALVE FIGURE 4 9 - Replace the upper access panel. 10 - Turn on all electrical power to to the unit. 11 - Set the thermostat to desired setting. NOTE - When unit is initially started, steps 1 through 11 may need to be repeated to purge airfrom gas line. 12 - If the appliance will not operate, followthe instructions “Turning Off Gas to the Unit” and call your service technician or gas supplier. Turning Off Gas to the Unit 1 - Set the thermostat to the lowest setting. 2 - Turn off all electrical power to the unit if service is to be performed. 3 - Remove the upper access panel. 4 - White Rodgers 36E Gas Valve-Switch gas valve le- ver to OFF. Honeywell VR8205 Gas Valve - Turn knob on gas valve clockwise 0^ to OFF. Do not force. 5- Replacetheupperaccesspanel. Page 4 Filters This unit is not equipped with a filter or rack. A field-provided, high-velocity filter is required to ensure proper unit operation. A filter must be in place any time the unit is operating. Maintenance A qualified service technician should inspect the complete system each season (heating and cooling). The following maintenance procedures should only be conducted by a qualified service technician. Do not attempt to service the unit in any way. Venting System Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burners for corrosion, deterioration, or deposits of debris. Remove any obstructions. Inspect thefurnace venting system to make sure it is in plac...