Carrier 50SS018-060 Installation, Start-up And Service Instructions Manual

Contents

ACCESSORY DUCT FLANGE KIT INSTALLATION —Refer to Fig. 26 for duct adapter dimensions and holelocations.1. Mark hole locations shown in Fig. 26.2. At marked locations, drill holes using a no. 26 (.147-in.)twist drill.3. Partially secure duct flanges using two of the no. 10, 1⁄2-in.screws provided.4. See the following caution. Using remaining holes in ductflanges as templates, drill the remaining holes with theno. 26 (.147-in.) drill.Do not drill deeper than 1⁄2-in. into shaded area shownin Fig. 26. Damage to refrigerant coil could result.5. Fully secure the duct flanges using the remaining screwsprovided.The finished kit installation accommodates a 143 ⁄4-in. x14 3⁄ 4-in. duct.Step 6 — Provide for Condensate DisposalNOTE: Be sure that condensate-water disposal methods com-ply with local codes, restrictions, and practices.Unit disposes of condensate through a 3 ⁄4-in. NPT fittingwhich exits through the compressor access panel. SeeFig. 2-9 for location of condensate connection.Condensate water can be drained directly onto the roof inrooftop installations (where permitted) or onto a gravel apronin ground-level installations. Install a field-supplied conden-sate trap at end of condensate connection to ensure properdrainage. Make sure that the outlet of the trap is at least1 in. lower than the drain-pan condensate connection to pre-vent the pan from overflowing. See Fig. 27. Prime the trapwith water. When using a gravel apron, make sure it slopesaway from the unit.If the installation requires draining the condensate wateraway from the unit, install a 2-in. trap using a 3⁄4 -in. FPTconnection. See Fig. 27. Make sure that the outlet of the trapis at least 1 in. lower than the unit drain-pan condensate con-nection to prevent the pan from overflowing. Prime the trapwith water. Connect a drain tube using a minimum of 3⁄ 4-in.PVC, 3⁄ 4-in. CPVC, or 3⁄ 4-in. copper pipe (all field supplied).Do not undersize the tube. Pitch the drain tube downward ata slope of at least 1 in. for every 10 ft of horizontal run. Besure to check the drain tube for leaks. Prime trap at the be-ginning of the cooling season start-up.PLUG ASSEMBLIESRACEWAYFILLERBRACKETBLOWERSHELFFig. 24 — Filler Bracket and Blower ShelfHORIZONTAL DUCT OPENINGFig. 25 — Housing Placed for Vertical AirflowNOTE: Do not drill more than 1⁄ 2-in. deep in shaded area.Fig. 26 — Duct Flange Kit — Locating Holes(Typical)20