Carrier 38CKC Installation Instructions Manual

Also see for 38CKC: Owner's manual Installation and start-up instructions Operating guide Product data Product data

Contents

2UNIT OPERATION HAZARDFailure to follow this caution may result in improper productoperation.Do not bury more than 36” (914 mm) of line set underground.Refrigerant may migrate to cooler buried section duringextended periods of unit shut--down, causing refrigerantslugging and possible compressor damage at start--up.If ANYsection of the line set is buried underground, provide aminimum 6” (152 mm) vertical rise at the service valve.CAUTION!INSULATIONSUCTION TUBELIQUID TUBEOUTDOOR WALL INDOOR WALLLIQUID TUBESUCTION TUBEINSULATIONCAULKHANGER STRAP(AROUND SUCTIONTUBE ONLY)JOIST1” MINTHROUGH THE WALLSUSPENSIONA07588Fig. 1 --- Connecting Tubing InstallationINSTALLATIONINSPECT NEW UNITFile claim with shipping company prior to installation if shipmentis damaged or incomplete. Locate unit rating plate on unit servicepanel. It contains information needed to properly install unit.Check rating plate to be sure unit matches job specifications.LOCATIONCheck local codes for regulations concerning zoning, noise,platforms, and other issues.Locate unit away from fresh air intakes, vents, or bedroomwindows. Noise may carry into the openings and disturb peopleinside.Locate unit in a well drained area, or support unit high enough sothat water runoff will not enter the unit.Locate unit away from areas where heat, lint, or exhaust fumes willbe discharged onto unit (as from dryer vents).Locate unit away from recessed or confined areas whererecirculation of discharge air may occur (refer to CLEARANCESsection of this document).Roof--top installation is acceptable providing the roof will supportthe unit and provisions are made for water drainage andnoise/vibration dampening.NOTE: Roof mounted units exposed to wind may require windbaffles. Consult the manufacturer for additional information.INSTALL ON SOLID, LEVEL MOUNTING PADIf conditions or local codes require the unit be attached to pad,tie--down bolts should be used and fastened through knockoutsprovided in unit base pan. Refer to unit mounting pattern in Fig. 2to determine base pan size and knockout hole location.Arrange supporting members to adequately support unit andminimize transmission of vibration to building. Consult local codesgoverning rooftop applications.CLEARANCE REQUIREMENTSWhen installing, allow sufficient space for airflow clearance,wiring, refrigerant piping, and service. Allow 24 in. (609.6 mm)clearance to service end of unit and 48 in. (1219.2 mm) (aboveunit. For proper airflow, a 6--in. (152.4 mm) clearance on 1 side ofunit and 12--in. (304.8 mm) on all remaining sides must bemaintained. Maintain a distance of 24 in. (609.6 mm) betweenunits or 18 in. (457.2 mm) if no overhang within 12 ft. (3.66 m)Position so water, snow, or ice from roof or eaves cannot falldirectly on unit.On rooftop applications, locate unit at least 6 in. (152.4 mm) aboveroof surface.CBA3⁄8″D. (9.53) TIEDOWN KNOCKOUTS (2) PLACESA94199Base PanWidth x Depthin. (mm)Tie DownKnockouts in. (mm)A B C18 X 18(457.2 X 457.2)3(76.2)15(381.0)10 ---3/16(258.8)22 ---1/2 X 22 ---1/2(63.5 X 63.5)3 ---11/16(93.7)18 ---1/8(460.4)14--3/8(365.1)30 X 30(762 X 762)6 ---1/2(165.1)23 ---1/2(596.9)20(508)Fig. 2 --- Tie Down KnockoutsOPERATING AMBIENTThe minimum outdoor operating ambient in cooling mode is 55_F(12.78_C), and the maximum outdoor operating ambient incooling mode is 125_F (51.67_C).REPLACE INDOOR ACCURATER PISTON, IFREQUIREDCheck indoor coil piston to see if it matches the required pistonshown on outdoor unit rating plate. If it does not match, replaceindoor coil piston with piston shipped with outdoor unit. Thepiston shipped with outdoor unit is correct for any approved indoorcoil combination.MAKE REFRIGERANT TUBING CONNECTIONSComponent MatchesCheck to see that the proper system components are in place,especially the indoor coil.R--22 outdoor units can only be used with R--22 specific indoorcoils. If there is a refrigerant mis--match, consult the indoor coilmanufacturer to determine if a refrigerant conversion kit isavailable for the indoor coil.This outdoor unit is designed for use only with indoor coils thatutilize a TXV refrigerant metering device. If any other type ofmetering device is installed on the indoor coil, consult the indoorcoil manufacturer to determine if a TXV conversion kit is available