Carrier 50HX Installation, Start-up, And Operating Instructions Manual

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this can be overcome by applying a slight force to the base ofthe blower. Continue sliding blower in until hole in side plateflange aligns with the hole in the unit base. Secure using screwremoved in Step 7. Reconnect indoor-fan motor leads andinsert wire tie back into unit control box.13. Cover the horizontal duct openings. Duct covers can beordered as an accessory or field fabricated (See Fig. 20).14. Reinstall the indoor coil and indoor blower access panels.15. After completing unit installation, perform all safety checksand power up unit.CONFIGURING UNITS FOR DOWNFLOW (VERTICAL)DISCHARGE-ECM UNITS (048–060)Units 048–060 (Units with ECM Indoor Blower Motors) areshipped in a horizontal configuration. To convert a horizontal unitfor downflow (vertical) discharge, perform the following steps:Before performing service or maintenance operations on thesystem, turn off main power to unit and install lockout tag orelectrical shock could result.1. Open all electrical disconnects and install lockout tag beforestarting any service work.2. Remove indoor coil access panel (See Fig. 12).3. Locate lances in unit base insulation that are placed over theperimeter of the vertical duct opening cover (See Fig. 13).4. Using a straight edge and sharp knife, cut and remove theinsulation around the perimeter of the cover. Remove thescrews securing the cover to the unit base and slide out thecover. Discard the cover.5. Remove indoor blower access panel (See Fig. 14).Fig. 11—Optional Heat Pump Mounting FrameC95013NOTES:1. Material consists of angle iron — 31.8 mm (1-1/4 in.) to 38 mm(1-1/2 in.) commerical standard.2. We ldframe together.3. Pa int with zinc-rich paint (rust-proof).1423959 mm(37 3/4 in.)1234305 mm (12 in.)TO 610 mm (24 in.) (4) REQ.1010 mm(39 3/4 in.) (2) REQ.909 mm (35 3/4 in.) (2) REQ.38 mm (1 1/4 in.)406 mm (16 in.) (8) REQ.1060 mm(41 3/4 in.)Fig. 12—Indoor Coil Access PanelC95014ACCESS PANEL(REMOVE SCREWS)10