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

Also see for 59SC2B: Product data

473. Pilot drill the screw holes for the adapter in the casing andattach the vent pipe adapter to the furnace with sheet metalscrews4. Slide the end of the rubber vent coupling with notches in itover the standoffs on the vent pipe adapter.5. Insert a length of vent pipe through the coupling into theoutlet of the vent elbow.6. Tighten the clamp around the outlet of the vent elbow.Torque the clamp to 15 lb--in.The following instructions are for PVC/ABS DWV ventpiping only. DO NOT USE THESE TECHNIQUES FORPOLYPROPYLENE VENT PIPING SYSTEMS. See thepolypropylene vent system manufacturer’s instructions forinstalling polypropylene venting systems.NOTICEInstall the remaining vent and combustion air pipes as shownbelow. It is recommended that all pipes be cut, prepared, andpre--assembled before permanently cementing any joint.1. Working from furnace to outside, cut pipe to requiredlength(s).2. De--burr inside and outside of pipe.3. Chamfer outside edge of pipe for better distribution ofprimer and cement.4. Clean and dry all surfaces to be joined.5. Check dry fit of pipe and mark insertion depth on pipe.6. Insert the vent pipe into the vent elbow.7. Torque clamp on vent elbow 15 lb--in.8. Torque clamp on vent coupling 15 lb--in.9. Insert the combustion air pipe into the adapter.10. Pilot drill a screw hole through the adapter into the combus-tion air pipe and secure the pipe to the adapter with sheetmetal screws. DO NOT DRILL INTO POLYPROPYL-ENE VENT PIPES. Use an optional accessory vent coup-ling, if needed.11. Seal around the combustion air pipe with silicone or foiltape. SILICONE SEALERS MAY NOT BE APPRO-PRIATE FOR POLYPROPYLENE VENT SYSTEMS.SEE POLYPROPYLENE VENT SYSTEM MANU-FACTURER’S INSTRUCTIONS.12. After pipes have been cut and pre--assembled, apply gener-ous layer of cement primer to pipe fitting socket and end ofpipe to insertion mark. Quickly apply approved cement toend of pipe and fitting socket (over primer). Apply cementin a light, uniform coat on inside of socket to preventbuildup of excess cement. Apply second coat. DO NOTCEMENT POLYPROPYLENE FITTINGS.13. While cement is still wet, twist pipe into socket with 1/4--in.turn. Be sure pipe is fully inserted into fitting socket.14. Wipe excess cement from joint. A continuous bead of ce-ment will be visible around perimeter of a properly madejoint.15. Handle pipe joints carefully until cement sets.16. Horizontal portions of the venting system shall besupported to prevent sagging. Space combustion air pipingand vent piping hangars as shown in the table below.Support pipes using perforated metal hanging strap orcommercially available hangars or straps designed tosupport plastic pipe.Hangar SpacingMaterialPipe Diameter1 ½-in.(38 mm)2-in.(51 mm)2 ½-in.(64 mm)3-in.(76 mm)4-in.(102 mm)PVC Sch40 36-in. (914-mm) 42-in. (1067-mm) 48-in.(1219mm)CPVC 36-in. (914-mm) 42-in. (1067-mm) 48-in.(1219mm)ABS 36-in. (914-mm) 42-in. (1067-mm) 48-in.(1219mm)Polypropy-lene 40-in. (1000-mm)SDR 21 &2630-in.(762-mm) 36-in.(914-mm) 42-in.(1067mm)17. Slope the vent and combustion air piping downwardtowards furnace. A minimum slope of at least 1/4-in. (6mm) per linear ft.(1-in (25 mm) per 4 ft.(1.2 M)) with nosags between hangers is required. See Caution Box below.FURNACE RELIABILITY HAZARDFailure to follow this caution may result in nuisance shortcycling, frozen vent termination, and/or no heat.Slope the vent and combustion air piping downward towardsfurnace a minimum of 1/4--in. (6 mm) per linear ft. of pipe.CAUTION!18. Complete the vent and combustion air pipe installation byconnecting the concentric vent or by installing the requiredtermination elbows as shown in Figs. 52, 53 and 54.For Ventilated Combustion Air Termination, See Fig. 55.19. Use appropriate methods to seal openings where combus-tion air pipe and vent pipe pass through roof or sidewall.CARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personal injuryor death.DO NOT use cement to join polypropylene venting systems.Follow the polypropylene venting system manufacturer’sinstructions for installing polypropylene venting systems.! WARNINGOptional Installation of the Vent PipeNOTE: DO NOT USE THIS TECHNIQUE FORPOLYPROPYLENE VENTING SYSTEMS.This option provides a disconnect point for the vent pipe. The ventpipe must be cemented to the plastic vent pipe adapter to maintaina sealed vestibule. See Fig. 48.1. Insert a length of vent pipe through the casing into theoutlet of the vent elbow.2. Slide the plastic vent pipe adapter over the length of thevent pipe down to the furnace casing. Mark the pipe whereit is flush with the outlet of the adapter.3. Remove the pipe from the furnace and the adapter and cutoff any excess pipe.4. Clean and prime the end of the pipe that is flush with thevent adapter with a primer that is appropriate for the type ofpipe being used.5. Re--insert the pipe through the casing into the vent elbow.6. Tighten the clamp around the outlet of the vent elbow.Torque the clamp to 15 lb--in.7. Apply cement to the end of the pipe and to the inside of theplastic vent adapter.59SC2C