Carrier 58MCA Users Information Manual For The Operation And Maintenance

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Carrier 58MCA Users Information Manual For The Operation And Maintenance Manual pdf 7 page image

719 2021 22NOTE: If washable filter that was shipped with the furnacehas been replaced with an electronic air cleaner (EAC), referto the EAC Owner’s Manual for maintenance information.4. Wash filter (if dirty) in a sink, bathtub, or outside with agarden hose. Always use cold tap water. A mild liquiddetergent may be used if necessary. Spray waterthrough filter in the opposite direction of airflow. Allowfilter to dry.5. Reinstall clean filter.6. Reinstall filter retainer.7. Replace blower and control access panels and turn onelectrical supply to the furnace. (See Fig. 25 and 26.)23 24If your furnace filter needs to be replaced, be sure to use thesame size and type of filter that was originally supplied. Usethe furnace filter table and compare your furnace size withthe proper filter size.FURNACE FILTER TABLE* Furnace with a side return-air inlet may have a different filter size. Measure the filter to obtain thecorrect size.25 26COMBUSTION AREA AND VENT SYSTEMVisually inspect the combustion area and vent system beforeeach heating season. Make sure that all PVC pipes leadinginto the combustion area and vent are free from any cracksand sags. Also check the combustion-air intake and ventpipes on the outside of your home for blockage.When dirt, soot, scale or rust is allowed to build up, yourfurnace can suffer a loss of efficiency and perform improp-erly. Accumulations on the main burners can result in firingout of normal sequence. This delayed ignition creates analarmingly loud sound.To inspect the combustion area and vent system, you willneed a flashlight. Refer to Fig. 3 or 4, and proceed as follows:1. Turn off gas and electrical supplies to the furnace andremove the access door. (See Fig. 9, 10, and 11.)2. Remove burner enclosure front. (See Fig. 27 or 28.)Inspect the gas burners and ignitor area for dirt, rust, orscale.3. Inspect the combustion-air and vent pipes for sags, holes,cracks, or disconnections.FURNACECASINGWIDTH (IN.)FILTER SIZE*(IN.)FILTERTYPE17-1/2 (1) 16 x 25 x 1 Cleanable21 (1) 20 x 25 x 1 Cleanable24-1/2 (2) 16 x 25 x 1 CleanableCAUTIONIf your furnace makes an especially loud noisewhen the main burners light, shut down your fur-nace and call your dealer.CAUTIONIf dirt, rust, soot, or scale accumulations are found,call your dealer. Do not operate your furnace.!!

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