Carrier 58TUA User's Information Manual

Also see for 58TMA: Install and operation instructions Service and maintenance instructions User's information manual Installation, start-up, and operating instructions

Contents

Carrier 58TUA User's Information Manual Manual pdf 6 page image

622 234. Remove the control access door on your furnace. (SeeFig. 10 or 11.) On upflow furnaces, removing the bloweraccess door is not required.5. Turn the control knob or switch on the gas valve to theOFF position. (See Fig. 22 or 23.)6. Replace the control access door. (See Fig. 16 or 17.)7. If the furnace is being shut down because of a malfunc-tion, call your dealer as soon as possible.PERFORMING ROUTINEMAINTENANCEWith proper maintenance and care, your furnace will operateeconomically and dependably. Basic maintenance, which caneasily be accomplished by someone who follows the directions,is found on this and the following pages. However, before begin-ning maintenance, follow these safety precautions:FILTERING OUT TROUBLEA dirty filter will cause excessive stress on the furnace, heatexchanger, and blower motor and can cause it to overheatand automatically shut down. The furnace filter should bechecked every 3 or 4 weeks and cleaned if necessary.If installed with factory specified disposable media filter,check or replace filter before each heating and cooling sea-son. Replace disposable media filter at least once a year.If your furnace filter needs replacing, be sure to use thesame size and type of filter that was originally supplied. Usethe Furnace Filter Table and match your furnace size withthe proper filter size.The air filter for upflow furnaces is normally located in theblower compartment. (See Fig. 3) or in the factory-supplierfilter cabinet attached to the side or bottom of the blower cab-inet. Filters for the downflow furnaces are normally locatedin the return-air plenum above the blower. If air filter has beeninstalled in another location, contact your dealer for instruc-tions. To inspect, clean and/or replace the air filter(s), followthese steps:• Upflow Furnaces Only—1. Turn off the electrical supply to the furnace. (SeeFig. 21.)2. Remove door/access panel• AIR FILTER(S) LOCATED IN BLOWER COMPART-MENTRemove control and blower access doors. (See Fig. 11)• AIR FILTER LOCATED IN FILTER CABINETRemove filter cabinet door (See Fig. 30 and 31)NOTE: It will be necessary to remove 1 thumbscrew24 253. Remove air filter from furnace.• AIR FILTER LOCATED IN BLOWER COMPART-MENT:a) Slide filter retainer sideways until it is free of latch.(See Fig. 24)b) Gently remove air filter and carefully turn the dirty side up(if dirty) to avoid spilling dirt from the filter. (see Fig. 25)• AIR FILTER LOCATED IN FILTER CABINET:a. Slide air filter out of furnace. Keep dirty side up (ifdirty) to avoid spilling dirt. (See Fig. 32 and 33)4. Inspect the filter. If torn, replace it.26NOTE: If washable filter that was shipped with the furnacehas been replaced by:a) Factory specified disposable media filter – Do not clean.If dirty, replace only with media filter having the samepart number and size. Install with airflow direction arrowpointing towards blower.b) Electronic air cleaner (EAC) – Refer to EAC owner’sManual for maintenance information.WARNINGTurn off electrical power supply to your furnacebefore removing the access doors to service orperform maintenance. A failure to follow thiswarning could result in personal injury or death.CAUTIONAlthough special care has been taken to minimizesharp edges, be extremely careful when handlingparts or reaching into the furnace.CAUTIONNever operate your furnace without a filter in place.Doing so may damage the furnace blower motor.An accumulation of dust and lint on internal partsof your furnace can cause a loss of efficiency.FFOOFF MCHIONOFF!!!