Carrier 58DXT User's Information Manual

Also see for 58DXT: Operating instructions Service and maintenance instructions

Contents

Carrier 58DXT User's Information Manual Manual pdf 4 page image

4qualified personnel should install, repair, or service heatingequipment.Untrained personnel can perform basic maintenance func-tions such as cleaning and replacing air filters. All otheroperations must be performed by trained service person-nel. Observe safety precautions in this manual, on tags andlabels attached to the furnace, and other safety precautionsthat may apply.Recognize safety information. This is the safety-alert sym-bol . When you see this symbol on the furnace and ininstructions or manuals, be alert to the potential for personalinjury.Understand the signal words DANGER, WARNING, andCAUTION. These words are used with the safety-alert sym-bol. DANGER identifies the most serious hazards whichwill result in severe personal injury or death. WARNINGsignifies hazards which could result in personal injury ordeath. CAUTION is used to identify unsafe practices whichwould result in minor personal injury or product and prop-erty damage.STARTING YOUR FURNACEInstead of a continuously burning pilot flame, your furnaceuses an automatic hot surface ignition system to light theburners each time the thermostat turns your furnace on.Follow these important safeguards:• Never attempt to manually light the burners with a matchor other source of flame.• Read and follow the operating instructions on the furnace,especially the item that reads as follows:“Wait 5 minutes to clear out any gas. Then smell for gas,including near the floor. If you smell gas, STOP! Follow “B’’in the above safety information on this label. If you don’tsmell gas, go to the next step.”• If a suspected malfunction occurs with your gas controlsystem, such as the burners do not light when they should,refer to the shutdown procedures on the furnace or see“Shutting Down your Furnace” section in this manual, thencall your dealer as soon as possible.• Check Air Filter: Before attempting to start your furnace,be sure the furnace filter is clean and in place. (See the main-tenance section of this manual.) Then proceed as follows:STEPS FOR STARTING YOURFURNACE1. Set your room thermostat to the lowest temperature set-ting. (See Fig. 7.)2. Close the external manual gas valve. (See Fig. 8.)78 93. Turn off electrical supply to the furnace. (See Fig. 9.)4. Remove the furnace access door(s).a. Downflow/Horizontal—Remove blower door afterremoving 2 screws first, then remove the controldoor. (See Fig. 10.)b. Upflow—Remove control door. (See Fig. 11.)10 115. The gas valve will have EITHER a control knob or con-trol switch to turn off and on. Turn the control knob orswitch on the gas valve to the OFF position and wait5 minutes. (See Fig. 12 or 13.)6. After waiting 5 minutes, turn the control knob or switchon the gas valve to the ON position. (See Fig. 14 or 15.)7. Replace the access door(s). See Fig. 16 for upflow andFig. 17 for downflow. Replace control door first ondownflow furnaces. Replace blower door and securewith 2 screws.8. Turn ON the electrical supply to the furnace. (SeeFig. 18.)WARNINGShould overheating occur or the gas valves fail toshut off the gas supply, turn off the manual gasvalve to the furnace BEFORE turning off the elec-trical supply. (See Fig. 8.) A failure to follow thiswarning could result in a fire or explosion, andpersonal injury or death.!6!®CLOSE