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

Also see for GAS FURNACE 58MVP: Installation, start-up, and operating instructions User's information manual User manual User's information manual User's information manual

Carrier 58MVP Installation, Start-up, And Operating Instructions Manual Manual pdf 13 page image

3. Connect collector box pressure tube (green label) to pressureswitch connection labeled COLLECTOR BOX.4. Use remaining small diameter tube (factory-supplied in looseparts bag) to extend collector box pressure tube (pink label)which was previously connected to pressure switch.5. Route this extended tube (pink label) to condensate trap reliefport connection.6. Determine appropriate length, cut, and connect tube.7. Clamp tube to relief port connection.CONDENSATE TRAP FREEZE PROTECTIONRefer to Condensate Drain Protection section for recommenda-tions and procedures.CONSTRUCT A WORKING PLATFORMConstruct working platform where all required furnace clearancesare met. (See Fig. 3 and 12.)The condensate trap MUST be installed below furnace. SeeFig. 6 for dimensions. The drain connection to condensatetrap must also be properly sloped to an open drain.NOTE: Combustion-air and vent pipes are restricted to a mini-mum length of 5 ft. (See Table 7.)NOTE: A 12-in. minimum offset pipe section is recommendedwith short (5 to 8 ft) vent systems. This recommendation is toreduce excessive condensate droplets from exiting the vent pipe.(See Fig. 12 or 35.)LOCATIONStep 1—GeneralThis furnace must• be installed so the electrical components are protected fromwater.• not be installed directly on any combustible material other thanwood flooring (refer to SAFETY CONSIDERATIONS).• be located so combustion-air and vent pipe maximum lengthsare not exceeded. Refer to Table 7.• be located where available electric power and gas supplies meetspecifications on the furnace rating plate.• be attached to an air distribution system and be located as closeto the center of the distribution system as possible. Refer to AirDucts section.• be provided with ample space for servicing and cleaning.Always comply with minimum fire protection clearancesshown on the furnace clearance-to-combustibles label. (SeeFig. 3.)This furnace may be located in a confined space without specialprovisions for dilution or ventilation air.NOTE: For upflow/downflow applications install furnace so thatit is level or pitched forward within 1/2-in. for proper furnaceoperation. For horizontal applications pitch 1/4-in. minimum to1/2-in. maximum forward to ensure proper condensate drainagefrom secondary heat exchangers. (See Fig. 14.)When a furnace is installed so that supply ducts carry air circulatedby the furnace to areas outside the space containing the furnace,the return air shall also be handled by ducts sealed to furnacecasing. The ducts terminate outside the space containing thefurnace to ensure there will not be a negative pressure conditionwithin equipment room or space.Do not operate this furnace during construction. If the furnaceis required for temporary heating of buildings or structuresunder construction, use clean outside air free of chlorine andfluorine compounds for combustion and ventilation. Thesecompounds form acids that corrode the heat exchangers.These compounds are found in paneling and dry wall adhe-sives, paints, thinners, masonry cleaning materials, and manyother solvents.The furnace and its return air system shall be designed andinstalled so that negative pressure created by the air circulating fancannot affect another appliance’s combustion air supply or act tomix products of combustion with circulating air, and that the aircirculating fan of the furnace, if installed in an enclosure commu-nicating with another fuel-burning appliance not of the direct-venttype, shall be operable only when any door or panel covering anopening in the furnace fan compartment or in a return air plenumon ducts is in the closed position.Do not install furnace on its back. Safety control operationwill be adversely affected. Never connect return-air ducts toback of furnace. Failure to follow this warning could result infire, personal injury, or death. (See Fig. 15.)If these furnaces are installed in an unconditioned spacewhere ambient temperatures may be 32°F or lower, freezeprotection measures must be taken. (See Fig. 16.)Step 2—Low-Heat Only InstallationThis 58MVP furnace can be installed to operate in the low-heatonly heating mode when sized using the low-heat heating capacity.Fig. 14—Proper Condensate DrainageA02146UPFLOW OR DOWNFLOW HORIZONTALFRONTLEVEL (0″)TO1⁄2″ MAX MIN 1⁄4″TO1⁄2″ MAXFRONTFig. 15—Prohibit Installation on BackA93043FRONTBACKFRONTBACK13→→→→