Carrier 59SC2C Series Installation, Start-up, Operating And Service And Maintenance Instructions

Also see for 59SC2B: Product data

43Table 13 – Vent Termination Kit for Direct Vent (2--pipe)SystemsDIRECT VENT(2--- PIPE)TERMINATION KITTERMINATIONSYSTEMDIAMETER OFCOMBUSTION AIRAND VENT PIPES ---IN. (mm)2 ---in. (51 mm)Concentric Vent KitSingle Penetration ofWall or Roof1, 1 ---1/2, 2, or 2 ---1/2(24, 36, 51, 64 mm)3 ---in. (76 mm)Concentric Vent KitSingle Penetration ofwall or Roof2 ---1/2, 3 or 4(64, 76, 102 mm)Direct Vent / 2-Pipe SystemIn a direct-vent (2-pipe) system, all air for combustion is takendirectly from outdoor atmosphere, and all flue products aredischarged to outdoor atmosphere. Combustion-air and vent pipesmust terminate together in the same atmospheric pressure zone,either through the roof (preferred) or a sidewall. See Fig. 50 forreferences to clearances required by National code authorities.OPTIONAL CONFIGURATION FOR COMBUSTIONAIR INLET PIPEIn applications where there is a risk of excessive moistureentering the combustion air inlet pipe, a moisture trap may beadded to the inlet pipe to help prevent moisture from enteringthe furnace from the combustion air inlet pipe. See Fig. 57.When sizing venting systems, the equivalent length of theoptional inlet pipe moisture trap must be taken into account.NOTICEVentilated Combustion Air SystemsIn a ventilated combustion air option, the vent terminates anddischarges the flue products directly to the outdoors similar to adirect vent system. See Fig. 51 for references to clearances requiredby National code authorities.All air for combustion is piped directly to the furnace from a spacethat is well ventilated with outdoor air (such as an attic or crawlspace) and the space is well isolated from the living space orgarage. Combustion air requirements for this option are the same asthe requirements for providing outside air for combustion for asingle pipe vent system. Refer to the “Air For Combustion andVentilation” Section.Non-Direct Vent (1-pipe) SystemIn a non direct-vent (1-pipe) system, all air for combustion is takenfrom the area adjacent to furnace, and all flue products aredischarged to outdoor atmosphere. Air for combustion must besupplied as described in the Air For Combustion and VentilationSection. Do not use an abandoned chimney to supply outside air tothe furnace. See Fig. 51 for references to vent clearances requiredby National code authorities.A combustion air pipe to the outdoors is not required for asingle--pipe vent system. A 12-in. (304 mm) long pipe with a 2--in.(51 mm) tight radius 90 degree elbow is required to be attached tothe combustion air pipe adapter on the furnace. See Fig. 54. Thisshort inlet air pipe helps to ensure stable combustion, as well asallow for sound attenuation. To aid sound attenuation, point theinlet air pipe away from occupants. An extra elbow and/or fivefeet of pipe may be used to accomplish the sound attenuationfunction.OPTIONAL VENTING BELOW THE FURNACEThe venting system may be positioned below the furnaceONLY IF the factory accessory External Vent Trap Kit is used.The External Vent Trap Kit is only approved for PVC/ABSDWV venting systems.CAREFULLY FOLLOW THE INSTRUCTIONSPROVIDED WITH THE EXTERNAL VENT TRAP KITFOR LAYING OUT THE VENTING SYSTEM ANDTHE DRAIN SYSTEM. The instructions included with thisfurnace DO NOT APPLY to vent systems that are locatedbelow the furnace.NOTICECARBON MONOXIDE POISONING HAZARDFailure to follow the instructions outlined below for eachappliance being placed into operation could result in carbonmonoxide poisoning or death.The instructions included with this furnace DO NOT APPLYto vent systems that are located below the furnace.CAREFULLY FOLLOW THE INSTRUCTIONSPROVIDED WITH THE EXTERNAL VENT TRAP KITFOR LAYING OUT THE VENTING SYSTEM ANDTHE DRAIN SYSTEM when all or part of the ventingsystem is placed below the furnace.Proper configuration of the venting and drain system is criticalwhen placing all or part of the venting system below the levelof the furnace. VENT GASSES COULD BE RELEASEDFROM THE DRAINAGE SYSTEM if the instructionsprovided with the External Vent Trap Kit are not followed.! WARNINGLocating the Vent TerminationGeneralNOTE: Termination Requirements for the Provinces ofAlberta and Saskatchewan are located at the end of thissection.Combustion--air inlet pipe (direct vent/2--pipe system only) andvent pipe must terminate outside structure, either through sidewallor roof.For vent termination clearance, references to National codes areshown in Fig. 50 for Direct Vent/2--Pipe system and Fig. 51 forVentilated Combustion Air/Non--direct Vent/1--Pipe system. Forexterior termination arrangements, refer to Fig. 52 for DirectVent/2--Pipe system and Fig. 53 for Ventilated CombustionAir/Non--Direct/1--Pipe system. Contact Local code authorities forother requirements to and/or exemptions from the National codesshown in the figures.Roof termination is the recommended termination location. Roofterminations provide better performance against sustainedprevailing winds. The roof location is preferred since the vent andcombustion air system is less susceptible to damage orcontamination. The termination is usually located away fromadjacent structures or other obstacles such as inside corners,windows, doors or other appliances. It is less prone to icingconditions, and it often has less visible vent vapors.Sidewall terminations may require sealing or shielding of buildingsurfaces with a corrosive resistance material due to the corrosive59SC2C