Carrier 59SC5B Installation, Start-up, Operating And Service And Maintenance Instructions

Also see for 59SC5B: Product data

466. Install the insulation per the insulation manufacturer’s in-stallation instructions.NOTE: Pipe length (ft. / M) specified for maximum pipe lengthslocated in unconditioned spaces cannot exceed total allowable pipelength as calculated from Table 16.Configure the FurnaceCARBON MONOXIDE POISONING HAZARDFailure to follow this warning could result in personalinjury or death.To route the vent pipe and combustion air pipe through thefurnace, the manufacturer supplied kit must be used. Failureto properly seal the blower compartment from the furnacevestibule could result in the circulation of carbon monoxidethroughout the structure. The vent pipe and combustion airpipe must be a continuous pipe while passing through theblower compartment. Seals supplied in this kit must beinstalled per the instructions provided. Follow allprocedures outlined in these instructions.WARNING!Near Furnace Vent ConnectionsOffsets in the vertical portion of the vent pipe should be made with45 deg. elbows instead of 90 deg. elbows. Short horizontal runs ofvent pipe are difficult to pitch correctly and may trap water in thevent pipe. Trapped water in the vent pipe may result in nuisancepressure switch tripping.Avoid short horizontal offsets with 90deg. Elbows. Short offsets can bedifficult to slope and may trap con-densate.Use 45 deg. Elbows wherepossible, to ensure conden-sate drainage.Slope vent pipe back to thefurnace at least ¼” per footA14546Fig. 42 -- Near Furnace Vent ConnectionsInstall the Vent and Combustion Air PipesWith the furnace installed in the required position, remove thedesired knockouts from the casing. It will be necessary to removeone knockout for the vent pipe and the other knockout for thecombustion air connection. See Fig. 16.Use a flat blade screwdriver and tap on the knockout on oppositesides, where the knockout meets the casing. Fold the knockoutdown with duct pliers and work the knockout back and forth untilit is removed. Trim any excess metal from the knockout with tinsnips.The vent elbow can be rotated to the required location on thecasing if necessary. See Fig. 44. To rotate the vent elbow:1. Loosen the clamp on the inlet of the vent elbow attached tothe inducer.2. Rotate the vent elbow to the required position. There arerounded notches on the vent elbow to align it with theinducer housing for each orientation.3. Tighten the clamp around the vent elbow. Torque the clampto 15 lb--in. See Fig. 46--49.