Assessments - 3, GPA: 4.3
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Facilidade de uso
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 independent Lennox dealer for an inspection by a qualified service technician. Page 3 Lighting Information and Operation AWARNING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. 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. Placing Furnace Into Operation G24MCE units are equipped with an electronic ignition system. Do not attempt to manually light burners on these furnaces. Each time the thermostat calls for heat, the burner will automatically light. Gas Valve Operation 1 - STOP! Read the safety information at the beginning of this section. 2 - Set the thermostat to lowest setting. See figure 1. 3 - Turn off all electrical power to the unit. 4 - This furnace Is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. 5 - Wait five (5) 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. 6- Turn on all electrical power to the unit. 7- Set the thermostat to desired setting. NOTE-When unit is first started, steps 1 through 1 may need to be repeated to purge air from gas line. 8- If the appliance still will not operate, follow the instructions “Turning Off Gas To Unit” and call your service technician or gas supplier. Turning Off Gas To Unit 1 - Set the thermostat to the lowest setting. 2 - Turn off all electrical power to the unit if service is to be performed. Filters G24MCE series units are equipped with external filters which should be inspected monthly and replaced when necessary to assure proper furnace operation. See table 1 for filter sizes. Replacement filters used with G24MCE-40/60/75 units must have a minimum velocity rating of 2 m/s (400 FPM). Replacementfilters used with G24MCE-100/120/140 units require a minimum velocity rating of 3.2 m/s (625 FPM). Figures 2 and 3 show possible filter locations when the units are installed in the upflow position. TABLE 1 MODEL NO. FILTER SIZE -millimeters (inches) G24MCE-45/60/75 406X508X25 (16X20X1) G24MCE-100/120/140 508X508X25 (20X20X1) Page 4 Fan UPFLOW FURNACE SIDE RETURN AIR FIGURE 3 Venting System Inspection Annually (before heating season) inspect furnace venting system, vent cap, heat exchanger and burners for corrosion, deterioration, or deposits of debris. Remove any obstructions. Contact your Lennox dealer for a periodic unit inspection by a qualified gas service engineer. Capillary Tube Limit Switch Check and clean fan wheel for any debris. Fan motor is prelubricated for extended bearing life. No further lubrication is needed. The G24MCE burner flame is not adjustable; however, the flame should be inspected at the beginning of each heating season and burners should be cleaned, if necessary. Burner flame should be blue when burning natural gas, blue/yellowwhen burning propane gas. Your Lennox furnace is equipped with a manually-reset capillary tube limit switch which shuts off the gas supply to the furnace in the event of inadequate supply air (high air temperature). It is located on the vestibule panel near the gas valve. To reset this control, push the switch on the face of the control sideways. If this switch opens again, consult a qualified gas service engineer. Control Board Lockouts Several types of control board lockout modes exist on this furnace. When in one of these modes, the control board will not allow the furnace to start. The two modes that can be manually reset are: a “Watchguard lockout mode,” and a “Hard lockout mode.” To reset the “Watchguard mode,” manually switch the thermostat from HEAT to OFF and then back to HEAT again. (Note - This lockout mode will also automatically reset after a 60 minute lockout period.) The “Hard lockout mode” can be reset by turning the electrical power OFF and then back ON again. If either of these two lockouts reoccur, or if the original lockout cannot be reset, call a qualified gas service engineer. AWARNING Fan door must be securely in place when fan and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death. Burner Flame Page 5 Service Reminder Call your Lennox service technician if unit is inoperative. Before calling, always check the following to be sure service is required. 1 - Check that electrical isolator switches are ON. 2 - Check room thermostat for proper setting. 3 - Replace any blown fuses or rese...