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

Carrier 58MSA Installation, Start-up, And Operating Instructions Manual Manual pdf 12 page image

1. Disconnect collector box pressure tube (pink label) attached topressure switch.2. Use smaller diameter tube (factory-supplied in loose partsbag) to extend collector box pressure tube (green label) whichwas previously connected to condensate trap relief portconnection.3. Route extended collector box pressure tube behind inducermotor bracket then between inducer motor and pressureswitch.4. Connect collector box pressure tube (green label) to pressureswitch connection labeled COLLECTOR BOX.5. Use remaining smaller diameter tube (factory-supplied inloose parts bag) to extend collector box pressure tube (pinklabel) which was previously connected to pressure switch.6. Route this extended tube (pink label) to condensate trap reliefport connection.7. Determine appropriate length, cut, and connect tube.8. 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 11.)The condensate trap MUST be installed below furnace. SeeFig. 5 for dimensions. The drain connection to condensatetrap must also be properly sloped to an open drain. Failure tofollow this caution will result in intermittent unit operation.NOTE: Vent pipe length is restricted to a minimum of 5 ft. (SeeTable 6.)NOTE: A 12-in. minimum horizontal pipe section is recom-mended with short (5 to 8 ft) vent systems. This recommendationis to reduce excessive condensate droplets from exiting the ventpipe. (See Fig. 11 or 38.)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 6.• 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.Fig. 12—Horizontal Right Tube ConfigurationA00214PLUGCOLLECTOR BOX DRAIN TUBE(BLUE AND WHITE STRIPED)INDUCER HOUSINGDRAIN TUBE (VIOLET)COLLECTOR BOXEXTENSION TUBECOLLECTOR BOX TUBE (GREEN)CAP COLLECTOR BOX DRAIN TUBE (BLUE)COLLECTOR BOX TUBE (PINK)CONDENSATETRAPCOLLECTOR BOX EXTENSION TUBEAUXILARY “J” BOX RELOCATED HERE12→