Carrier 24APA7 Performance Installation Instructions Manual

Also see for 24APA7 Performance: Product data Wiring diagram

Contents

2The outdoor unit contains system refrigerant charge for operationwith ARI rated indoor unit when connected by 15 ft. (4.57 m) offield--supplied or factory accessory tubing. For proper unitoperation, check refrigerant charge using charging informationlocated on control box cover and/or in the Check Charge section ofthis instruction.IMPORTANT: Maximum liquid--line size is 3/8--in. OD for allresidential applications including long line.IMPORTANT: Always install the factory--supplied liquid--linefilter drier. If replacing the filter drier, refer to Product Data Digestfor appropriate part number. Obtain replacement filter driers fromyour distributor or branch.INSTALLATIONCheck Equipment and Job SiteUNPACK UNITMove to final location. Remove carton taking care not to damageunit.Inspect EquipmentFile claim with shipping company prior to installation if shipmentis damaged or incomplete. Locate unit rating plate on unit cornerpanel. It contains information needed to properly install unit.Check rating plate to be sure unit matches job specifications.Install on a Solid, Level Mounting PadIf conditions or local codes require the unit be attached to pad, tiedown 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.For hurricane tie downs, contact local distributor for details and PE(Professional Engineer) certification, if required by localauthorities.On rooftop applications, mount on level platform or frame. Placeunit above a load--bearing wall and isolate unit and tubing set fromstructure. Arrange supporting members to adequately support unitand minimize transmission of vibration to building. Consult localcodes governing rooftop applications.Roof mounted units exposed to winds may require wind baffles.Consult the Application Guideline and Service Manual --Residential Split System Air Conditioners and Heat Pumps forwind baffle construction.NOTE: Unit must be level to within ±2_ (±3/8 in./ft,±9.5 mm/m.)per compressor manufacturer specifications.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. 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.Operating AmbientThe minimum outdoor operating ambient in cooling mode is 55_F(12.78_C) without low ambient cooling enabled in the InfinityControl, and the maximum outdoor operating ambient in coolingmode is 125_F (51.67_C). At line voltage of 208v (or below, andoutdoor ambient of 120_F (48.9_C) (and above), the compressoroperates in low stage.NOTE: This product is approved for low ambient cooling if usedwith a communicating User Interface.Make Piping Connections! WARNINGPERSONAL INJURY AND ENVIRONMENTALHAZARDFailure to follow this warning could result in personal injuryor death.Relieve pressure and recover all refrigerant before systemrepair or final unit disposal. Use all service ports and openall flow--control devices, including solenoid valves.Federal regulations require that you do not vent refrigerantto the atmosphere. Recover during system repair or finalunit disposal.CAUTION!UNIT DAMAGE HAZARDFailure to follow this caution may result in equipmentdamage or improper operation.If ANY refrigerant tubing is buried, provide a 6--in (152.4mm) vertical rise at service valve. Refrigerant tubing lengthsup to 36--in (914.4 mm) may be buried without furtherspecial consideration. Do not bury lines more than 36--in.(914.4 mm).3/8--- in. (9.53 mm) Dia.Tiedown Knockouts inBasepan(2) PlacesView From TopUNIT BASE PANDimension in. (mm) TIEDOWN KNOCKOUT LOCATIONS in. (mm)A B C31–1/2 X 31–1/2(800 X 800) 9–1/8 (231.8) 6–9/16 (166.7) 24–11/16 (627.1)35 X 35(889 X 889) 9–1/8 (231.8) 6–9/16 (166.7) 28–7/16 (722.3)A05177Fig. 2 -- Tiedown Knockout LocationsOutdoor units may be connected to indoor section using accessorytubing package or field--supplied refrigerant grade tubing of correctsize and condition. Rated tubing diameters shown in Table 1 arerecommended up to 80 ft. (24.38 m). See Product Data foracceptable alternate vapor diameters and associated capacity losses.For tubing requirements beyond 80 ft. (24.38 m), substantialcapacity and performance losses can occur. Following therecommendations in the Longline Guideline will reduce theselosses. Refer to Table 1 for field tubing diameters. Refer to Table 2for accessory requirements.There are no buried--line applications greater than 36--in. (914.4mm) allowed.If refrigerant tubes or indoor coil are exposed to atmosphere, theymust be evacuated to 500 microns to eliminate contamination andmoisture in the system.24APA7