Carrier 48 Series Installation Instructions Manual
Also see for 48DK024: Controls operation and troubleshooting
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Installation InstructionsPart Numbers 50DJ900421 and 50DJ900431USAGEUNIT PART NUMBER48/50DJ,DK,LJ,NK024 50DJ90042150DW,DY,LW,NY02448/50DJ,DK,NK028,030 50DJ90043150DW,DY,NY028,030GENERALAccessory barometric relief dampers can only be in-stalled on Models 48/50DJ,DK,LJ,NK vertical units equippedwith economizer.On horizontal units (50DW,DY,LW,NY), the barometricrelief hoods may be installed on field-supplied returnductwork.INSTALLATIONAccessory package contains:1 channel panel (50LJ units only)1 channel clip1 preassembled hood/damper assembly1 fan deck1 fastener package (taped to inside of hood)The fastener package contains:6 screws, 1⁄4 AB x 5 ⁄8-in. long2 seal strips, 36-in. long x 1-in. wide x 1⁄ 8-in. thick,with pressure-sensitive adhesive on one side2 seal strips, 33-in. long x 1-in. wide x 1 ⁄8-in. thick,with pressure-sensitive adhesive on one side1 seal strip, 4-ft long x 1 ⁄2-in. wide x 1 ⁄8-in. thick, withpressure-sensitive adhesive on one sideVertical Units (48/50DJ,DK,LJ,NK) — Turn off unitpower.Accessory barometric relief dampers are installed in placeof the unit panel that is next to the economizer. See Fig. 1.NOTE: Save all screws as they will be needed later to re-assemble the panels.On 50 series units, remove compressor access door/paneland latch bracket. On all units, remove and discard left chan-nel panel. See Fig. 2 for channel panel details. On 50LJ units,it is necessary to remove drip lip over compressor accesspanel in order to reach left channel panel screws and removepanel.Remove right channel panel. See Fig. 2 for channel paneldetails. Save this channel panel as it will be used later inanother position. Remove and discard unit panel.Secure fan deck in place using unit panel screws removedearlier. See Fig. 1. (Do not use the 2 middle screws on thelower set of holes that hold the fan deck to the unit base rail.Save for use later.)Fig. 1 — Accessory Barometric Relief Installation Details48/50 Series(Sizes 024-030)Accessory Barometric Relief DampersManufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 1 1Tab 1a 1bPC 111 Catalog No. 534-822 Printed in U.S.A. Form 48/50D,L,N-3SI Pg 1 10-90 Replaces: 48/50DJ,DK-1SI |
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