Carrier 58MSA Installation, Start-up, And Operating Instructions Manual

Also see for 58MSA Series: Service and maintenance instructions User manual Instruction manual Installation, start-up, and operating instructions Installation, start-up, and operating instructions

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Check Safety Controls ............................................................45Check Primary Limit Control ...........................................45Check Pressure Switch ......................................................45CHECKLIST...........................................................................46SAFETY CONSIDERATIONSFURNACE RELIABILITY HAZARDImproper installation or misapplication of furnace may re-quire excessive servicing or cause premature componentfailure.Application of this furnace should be indoors with specialattention given to vent sizing and material, gas input rate, airtemperature rise, unit leveling, and unit sizing.FIRE, EXPLOSION, ELECTRICAL SHOCK ANDCARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in electrical shock,fire, personal injury, or death.Improper installation, adjustment, alteration, service, mainte-nance, or use can cause carbon monoxide poisoning, explo-sion, fire, electrical shock, or other conditions which maycause personal injury or property damage. Consult a qualifiedinstaller, service agency, local gas supplier, or your distribu-tor or branch for information or assistance. The qualifiedinstaller or agency must use only factory-authorized andlisted kits or accessories when modifying this product.Installing and servicing heating equipment can be hazardous due togas and electrical components. Only trained and qualifiedpersonnel should install, repair, or service heating equipment.Untrained personnel can perform basic maintenance functionssuch as cleaning and replacing air filters. All other operations mustbe performed by trained service personnel. When working onheating equipment, observe precautions in literature, on tags, andon labels attached to or shipped with unit and other safetyprecautions that may apply.These instructions cover the minimum requirements and conformto existing national standards and safety codes. In some instances,these instructions exceed certain local codes and ordinances,especially those that may not have kept up with changing residen-tial construction practices. We require these instructions as aminimum for a safe installation.Wear safety glasses and work gloves. Have a fire extinguisheravailable during start-up and adjustment procedures and servicecalls.CUTS HAZARDFailure to follow this caution may result in personal injury.Sheet metal parts may have sharp edges or burrs. Use care andwear appropriate protective clothing and gloves when han-dling parts.Recognize safety information. This is the safety-alert symbol .When you see this symbol on the unit and in instructions ormanuals, be alert to the potential for personal injury.Understand these signal words DANGER, WARNING, CAU-TION, and NOTE. These words are used with the safety-alertsymbol. DANGER identifies the most serious hazards which willresult in severe personal injury or death. WARNING signifieshazards which could result in personal injury or death. CAUTIONis used to identify unsafe practices which may result in minorpersonal injury or product and property damage. NOTE is used tohighlight suggestions which will result in enhanced installation,reliability, or operation.The 58MSA Multipoise Condensing Gas-Fired Furnaces are CSA(formerly AGA and CGA) design-certified for natural and propanegases (see furnace rating plate) and for installation in alcoves,attics, basements, closets, utility rooms, crawlspaces, and garages.The furnace is factory-shipped for use with natural gas. A CSA(formerly AGA and CGA) listed gas conversion kit is required toconvert furnace for use with propane gas.See Fig. 3 for required clearances to combustibles.Maintain a 1-in. clearance from combustible materials to supply airductwork for a distance of 36 inches horizontally from the furnace.See NFPA 90B or local code for further requirements.These furnaces SHALL NOT be installed directly on carpeting,tile, or any other combustible material other than wood flooring. Indownflow installations, factory accessory floor base MUST beused when installed on combustible materials and wood flooring.Special base is not required when this furnace is installed onmanufacturer’s Coil Assembly Part No. CD5 or CK5, or when CoilBox Part No. KCAKC is used. The design of this furnace line isNOT CSA (formerly AGA and CGA) design-certified for instal-lation in recreation vehicles, manufactured mobile homes, oroutdoors.This furnace is designed for continuous return-air minimumtemperature of 60°F db or intermittent operation down to 55°F dbsuch as when used with a night setback thermometer. Return-airtemperature must not exceed 85°F db. Failure to follow thesereturn-air limits may affect reliability of heat exchangers, motors,and controls. (See Fig. 4.)These furnaces are shipped with the drain and pressure tubesconnected for UPFLOW applications. Minor modifications arerequired when used in DOWNFLOW, HORIZONTAL RIGHT, orHORIZONTAL LEFT (supply-air discharge direction) applica-tions as shown in Fig. 1. See details in Applications section.These furnaces are shipped with the following materials to assist inproper furnace installation. These materials are shipped in the mainblower compartment.Installer Packet includes:Installation, Startup, and Operating InstructionsService and Maintenance InstructionsUser’s Information ManualWarranty CertificateLoose Parts Bag includes: QuantityPressure tube extension 1Collector Box or condensate trap extension tube 1Inducer housing drain tube 11/2-in CPVC street elbow 2Drain tube coupling 1Drain tube coupling grommet 1Vent and combustion-air pipe support 2Condensate trap hole filler plug 3Vent and combustion-air intake hole filler plug 2Combustion-air pipe perforated disk assembly 1Vent Pipe Extension 1** ONLY supplied with some furnaces.For accessory installation details, refer to accessory installationinstructions.2