Carrier 58DXT Operating Instructions Manual

Also see for 58DXT: User's information manual Service and maintenance instructions

Contents

Carrier 58DXT Operating Instructions Manual Manual pdf 4 page image

For accessory installation details, refer to applicable installationliterature.NOTE: Remove all shipping brackets and materials before oper-ating furnace.Step 1—LocationGENERALDO NOT install furnace in a corrosive or contaminatedatmosphere. Make sure all combustion and circulating airrequirements are followed.DO NOT use this furnace during construction when adhe-sives, sealers, and/or new carpets are being installed andcuring. If the furnace is required during construction, useclean outside air for combustion and ventilation. Compoundsof chlorine and fluorine when burned in combustion air formacids which will cause corrosion of the heat exchangers andmetal vent systems. Some of these compounds are releasedfrom paneling and dry wall adhesives, paints, thinners,masonry cleaning materials, and many other solvents com-monly used in the construction process.Excessive exposure to contaminated combustion air willresult in safety and performance related problems.This furnace must be installed so electrical components areprotected from water.Locate furnace as near to center of air distribution system andchimney or vent as possible. The furnace should be installed aslevel as possible.When furnace is installed so that supply ducts carry air to areasoutside space containing furnace, the return air must also behandled by a duct(s) sealed to furnace casing and terminatingoutside space containing furnace.Provide ample space for servicing and cleaning. Always complywith minimum fire protection clearances shown on unit clearancelabel. This furnace shall not be installed directly on carpeting, tile,or any combustible material other than wood flooring. The furnacemay be installed on combustible flooring when installed withaccessory downflow subbase, which is available from your dis-tributor or branch when required.LOCATION RELATIVE TO COOLING EQUIPMENTThe cooling coil must be installed parallel with or on downstreamside of furnace to avoid condensation in heat exchangers. Wheninstalled parallel with furnace, dampers or other means used tocontrol the flow of air must prevent chilled air from enteringfurnace. If dampers are manually operated, they must be equippedwith means to prevent operation of either unit unless damper is infull-heat or full-cooling position.HAZARDOUS LOCATIONSStep 2—Air for Combustion and VentilationProvisions for adequate combustion and ventilation air must beprovided in accordance with Section 5.3, Air for Combustion andVentilation, of the NFGC or applicable provisions of local buildingcodes.Canadian installations must be in accordance with NSCNGPICand all authorities having jurisdiction.Air for combustion must not be contaminated by halogencompounds which include fluoride, chloride, bromide, andiodide. These elements are found in aerosol sprays, deter-gents, bleaches, cleaning solvents, salts, air fresheners, andother household products.The operation of exhaust fans, kitchen ventilation fans,clothes dryers, or fireplaces could create a negative airpressure condition at the furnace. Make-up air must beprovided for these devices, in addition to that required by thefurnace.All fuel-burning equipment must be supplied with air for combus-tion of the fuel. Sufficient air MUST be provided to ensure therewill not be a negative pressure in equipment room or space. Inaddition, a positive seal MUST be made between furnace cabinetand return-air duct to avoid pulling air from the burner area anddraft safeguard opening into circulating air.NOTE: These furnaces are designed for a minimum continuousreturn-air temperature of 60°F or intermittent operation down to 55°Fsuch as when used with a night setback thermostat. Return-airtemperature must not exceed a maximum of 85°F. Failure to followthese return-air temperature limits may affect reliability of heatexchangers, motors, and controls.A93042FRONTRETURNAIRMAX 85°F MIN 55°F°F °FWhen furnace is installed in a residential garage, it must beinstalled so that burners and ignition sources are located aminimum of 18 in. above floor. The furnace must be locatedor protected to avoid physical damage by vehicles. Whenfurnace is installed in a public garage, airplane hangar, orother building having a hazardous atmosphere, unit must beinstalled in accordance with requirements of National FireProtection Association, Inc.A9304418-IN. MINIMUMTO BURNERS4→→