Product Data - Carrier

1 2021 CarrierForm 38AP-16PD Rev. A Product DataGemini Select Commercial Air-Cooled Condensing Units25 to 130 Nominal Tons(88 to 457 Nominal kW)38 APS025-065, 38 APD025-130 Commercial Air-Cooled Condensing Units with Puron Refrigerant (R-410A)50/60 Hz025 UNIT WITHLOW SOUND OPTION040-060 UNIT070 UNIT2 The 38AP condensing unit offers theutmost in system configuration andcontrol adaptability. Its premium-qual-ity standard components ensure dura-ble, efficient, and reliable dependable split systems matchCarrier s 40RU or 39 Series indoor-airhandlers with the versatile outdoor38AP condensing units for a wideselection of commercial cooling solu-tions. Split condensing units compatiblewith ASHRAE Chlorine-free, non-ozone depletingPuron refrigerant (R-410A) Coil design flexibility - Microchanneland RTPF coil technology availableon all units 38 APS single-circuit unit has up to3 rotary scroll compressors 38 APD unit has up to 6 rotary scrollcompressors with 2 independentcircuits Standard scroll compressor unitsoperate as low as 33% (single cir-cuit) or 13% (dual circuit) of nominalcapacity Optional digital scroll compressorsallow incremental unloading downto 16% (single circuit) or 6% (dualcircuit) of nominal capacity for VAVapplications.

2 The digital scroll isalways on the lead circuit (one perunit) Protection against high dischargeand low suction refrigerant pres-sure, and low oil pressureThe 38AP units offer high unit EERs(Energy Efficiency Ratios) up to IPLVs (integrated part load values)up to units provide greater efficiencythan similar units in the marketplace,which translates into year-round oper-ating latest safety standards for 38 APunits are tested per UL (UnderwritersLaboratories) and CSA (CanadianStandards Association) standards andcertified by 38AP Series condensing units fea-ture up to 6 compressors and 2 refrig-erant circuits, and can be matched witha wide variety of air-handling units. Sin-gle circuit condensing units can oper-ate with a single air handler. Dualcircuit condensing units can operatewith a single air handler or two sepa-rate air handlers. Standard units havemultiple scroll compressors.

3 A digitalscroll option is available. This option ofdigital control closely matches buildingloads and allows fine incrementaladjustments to the variance in constructionAll 38AP units have weatherized cabi-nets constructed of heavy-duty galva-nized steel prepainted with corrosion-resistant baked enamel. Inside and out-side surfaces are protected to ensurelong life and good appearance. Thedurable, galvanized steel, painted com-ponents shall withstand 1000 hours inconstant neutral salt spray underASTM B117 conditions with a 1mmscribe per ASTM D1654. After test,painted parts shall show no signs ofwrinkling or cracking, no loss of adhe-sion, no evidence of blistering, and themean creepage shall not exceed1/4-in. (Rating 4 per ASTM D1654)on either side of the scribe 38AP units are available with Nova-tion heat exchangers with microchan-nel coil technology. The microchannelheat exchanger (MCHX) coils providelong-term reliability, high performanceheat transfer, and significant savings inrefrigerant charge.

4 E-coated MCHX isoffered as an option for harsh industrialor coastal conditions. Painted partsshall withstand 1000 hours in constantneutral salt spray under ASTM B117conditions with a 1mm scribe perASTM D1654. After test, paintedparts shall show no signs of wrinklingor cracking, no loss of adhesion, noevidence of blistering, and the meancreepage shall not exceed 1/4 in. (Rat-ing 4 per ASTM D1654) on eitherside of the scribe 38AP condensing units featurehighly reliable, hermetic scroll com-pressors. Each 38AP unit is capable ofunloading in staging sequence of scrollcompressors. Compressors aremounted on rails with vibration isola-tors to provide quiet operation andreduced component 38AP units have single or dualindependent circuits; they provideinherent backup capability. Each circuitis also protected by the following safetyfeatures: Short-cycle protection Low superheat protection Loss of refrigerant charge protec-tion Reverse rotation protection Suction and discharge pressuretransducers High refrigerant pressure switch(discharge) Circuit breakers or fuses for shortcircuit protection of compressorsand outdoor fans Suction line accumulator for eachrefrigerant circuitEasier installation and serviceThe 38AP units are equipped withhinged control-box access doors, con-trol interface terminal boards, liquidline shutoff valves, and suction line ser-vice controls The ComfortLink controls communi-cate in plain English, making it as easyas possible to monitor and control eachGemini Select condensing unit whileaccurately maintaining air tempera-tures.

5 The large scrolling marquee dis-play acts as a window into the unit soperation, providing easy-to-read infor-mation about chiller performance andover 15 diagnostic functions. Carrier s 38 Series condensing units ComfortLink controls provide featuressuch as supply air temperature reset,demand limit, 4 to 20 mA input com-pressor wear minimization and protec-tion, temperature and pressure displaysand diagnostic functions. These con-trols result in higher chiller reliability,Features/BenefitsTable of contentsPageFeatures/Benefits ..2 Model Number Nomenclature ..4 Physical Data ..5 Options and Accessories..9 Dimensions ..12 Selection Procedure ..17 Performance data ..18 Typical Piping and Wiring..19 Electrical Data ..22 Controls ..30 Typical Control Wiring Schematics ..33 Application Data ..42 Guide Specifications ..493simplified training and more productiveservice calls with correspondingly loweroperational and maintenance s exclusive accessory handheldNavigator display provides conve-nience and powerful information in thepalm of your hand.

6 The Navigator dis-play helps technicians to quickly diag-nose problems and even prevent themfrom Gemini Select units are ready to beused with the Carrier Comfort Net-work (CCN) system. A BACnet1 com-munication option is also available forthe i-Vu Open control system or aBACnet1 building automation certificationA seismic unit modification is availablewhich will result in a unit SDS (seismicdesign acceleration parameter) level for 38AP025-065 units and 38AP070-130 BACnet is a registered trademark by ASHRAE(American Society of Heating, Refrigeratingand Air-Conditioning Engineers).SCROLLING MARQUEE DISPLAYNAVIGATOR DISPLAYLOW SOUND OPTIONLOW-NOISE AEROACOUSTIC FANAEROACOUSTIC FAN VS PROPELLER FANa30-2187a30-3926 NOVATION heat exchanger TECHNOLOGYWITH MICROCHANNEL CONDENSER COILSa38-7096a30-3924 PROPELLER FANAEROACOUSTIC FAN1/3 OCTAVE BAND CENTER FREQUENCY (Hz)SOUND POWER [dB(A)]PENETRATES BUILDINGSTRUCTURE25406313016825040063010 8016002400400063008000908580757065605550 AEROACOUSTIC FAN vs.

7 PROPELLER FANRun StatusService TestTemperaturePressuresSetpointsInputsO utputsConfigurationTime ClockOperating ModesAlarmsAlarm StatusENTERMODEESCAPERun StatusService TestTemperaturesPressuresSetpointsInputs OutputsConfigurationTime ClockOperating ModesAlarmsENTERESCMODEA larm StatusComfortLinkTUBESFINSMICROCHANNELSM ANIFOLDF eatures/Benefits (cont)438AP D 025 6 4 A 1 0 0 2 038AP Split System Condensing UnitPackaging/Security Options0 Std Packaging4 Security Grilles/Hail Guards8 Std Packaging, Bottom SkidControls/Communications Options2 Standard, Scrolling Marquee3 EMM, Scrolling MarqueeAmbient/Capacity Control/High SCCR Options 0 Std Ambient, Std Compressor 2 Std Ambient, Digital Compressor 3 Std Ambient, Std Compressor, High SCCR5 Std Ambient, Digital Compressor, High SCCR6 Low Ambient, Std Compressor 8 Low Ambient, Digital Compressor 9 Low Ambient, Std Compressor, High SCCRC Low Ambient, Digital Compressor, High SCCRLine Length Options1 = Standard Line Length, MCHX2 = Long Line Length Check valves, MCHX3 = Standard Line Length, RTPF4 = Long Line Length Check valves, RTPFE lectrical Options0 Single Point Power, XL.

8 Terminal Block1 Single Point Power, XL, Non-Fused DisconnectRefrigeration Circuit Options*D Dual Refrigeration CircuitS Single Refrigeration CircuitRevision LevelAB (Unit Sizes 065,115,130 Only)ylppuS rewoP 1 575-3-602 380-3-605 280/230-3-606 460-3-609 380/415-3-50 Condenser Coil/Low Sound OptionsUnit SizeD Bottom Skid, Security Grilles/Hail GuardsJ Bottom Skid, Top Crate, BagN Bottom Skid, Top Crate, Bag, Security Grilles/Hail Guards025050 090027 060 100030 070040 080065 1151302 Dual Point Power, XL, Terminal Block**8 Scrolling Marquee, BACnet Communication9 Scrolling Marquee, EMM, BACnet Communication0 = Aluminum Fin / Copper Tube, No Sound Treatment1 = Copper Fin / Copper Tube, No Sound Treatment2 = Aluminum Pre-Coat Fin / Copper Tube, No Sound Treatment3 = Aluminum E-Coat Fin / Copper Tube, No Sound Treatment4 = Micro Channel (MCHX), No Sound Treatment5 = E-coat Micro Channel (MCHX), No Sound Treatment6 = Copper E-Coat Fin / Copper Tube, No Sound Treatment7 = Aluminum Fin / Copper Tube, Low Sound Fan(s)8 = Copper Fin / Copper Tube, Low Sound Fan(s)9 = Aluminum Pre-Coat Fin / Copper Tube, Low Sound Fan(s)B = Aluminum E-Coat Fin / Copper Tube, Low Sound Fan(s)C = Micro Channel (MCHX), Low Sound Fan(s)D = E-coat Micro Channel (MCHX), Low Sound Fan(s)F = Copper E-Coat Fin / Copper Tube, Low Sound Fan(s)G = Aluminum Fin / Copper Tube, Low Sound Fan(s), Compressor BlanketsH = Micro Channel (MCHX), Low Sound Fan(s), Compressor BlanketsJ = E-coat Micro Channel (MCHX), Low Sound Fan(s), Compressor BlanketsK = Copper Fin / Copper Tube, Low Sound Fan(s), Compressor BlanketsL = Aluminum Pre-Coat Fin / Copper Tube, Low Sound Fan(s), Compressor BlanketsM = Aluminum E-Coat Fin / Copper Tube, Low Sound Fan(s)

9 , Compressor BlanketsN = Copper E-Coat Fin / Copper Tube, Low Sound Fan(s), Compressor BlanketsLEGEND*38 APS units available in sizes 025-050 and 065 only. Digital compressor not available on size 065.**Only available on sizes 115 and AssuranceISO 9001: 2015-certified processesEMM Energy Management ModuleMCHX Microchannel heat ExchangerRTPF Round Tube, Plate FinSCCR Short Circuit Current RatingXL Across-the-Line StartModel number nomenclature5 LEGEND*Typical operating charge with 25 ft of interconnecting piping. Operating charge is approximate for maximum system capacity. Unit is factorysupplied with nitrogen holding charge. Refrigerant charge for dual cir-cuit units is the total for both circuits. Maximum vertical separation between evaporator coil and condensing : Refer to Loading Sequences tables in Application Data sectionon page 43 or contact Application Engineering for detailed capacity UNITS ENGLISH38AP UNIT SIZE025027030040050 NOMINAL CAPACITY, 50/60 Hz (tons)21/2523/2725/3033/4042/50 CIRCUITDualSingleDualSingleDualSingleDua lSingleDualSingleOPERATING WEIGHTS (lb) Standard MCHX109510771258124012641246209419682120 1977 MCHX with Low Sound Option1131111312941276130012822148202221 742031 Cu-Al RTPF116811501347132913531335227321472299 2156 Cu-Al RTPF with Low Sound Option1204118613831365138913712327220123 532210 Cu-Cu RTPF130812901523150515291511262524992651 2508 Cu-Cu RTPF with Low Sound Option1344132615591541156515472679255327 052562 REFRIGERANT CHARGE (LB) Total MCHX* Circuit A/Circuit B MCHX2412/122424/ 2613/132626/ 2814/142929/ 3821/173939/ 4822/264848/ Total RTPF* Circuit A/Circuit B RTPF4221/214242/ NITROGEN SHIPPING CHARGE15 psigCOMPRESSORhp (Qty) (CKT A/CKT B)11 (1)/11 (1)

10 11 (2)13 (1)/13 (1)13 (2)15 (1)/15 (1)15 (2)10 (2) (2)13 (3)11 (2)/13 (2)15 (3)CAPACITY STEPS Standard2222224343 Digital Option22222222222236273627 CRANKCASE HEATER (W)(each compressor)90 (60/50 Hz)CONDENSER FANS StandardPropeller Type, Axial, Vertical Discharge Quantity2222223333 RPM1140 (60 Hz), 950 (50 Hz) Diameter (in.)30 Total Watts (60 Hz)3300330033003300330033004200420042004 200 Total Watts (50 Hz)1997199719971997199719972541254125412 541 Low NoisePlastic Type, Axial, Vertical Discharge Quantity2222223333 RPM850 (60 Hz), 700 (50 Hz) Diameter (in.)30 Total Watts (60 Hz)2750275027502750275027503500350035003 500 Total Watts (50 Hz)1664166416641664166416642118211821182 118 CONDENSER COILMCHX Type No. Coils per Circuit1111111212 sq RELIEFF usible Plug on Liquid Lines of Each Circuit 210 FCONNECTIONS (in.) ODF(CKT A/CKT B) Suction Line 13/8 / 13/815/813/8 / 13/815/813/8 / 13/815/815/8 / 15/821/815/8 / 15/821/8 Liquid Line5/8 / 5/85/85/8 / 5/85/85/8 / 5/87/85/8 / 5/87/85/8 / 5/87/8 MAXIMUM HEIGHT FOR 3 FSUBCOOLING (ft) 75757575757575757575 CAPACITY PER CIRCUIT (%)(CKT A/CKT B)50/5010050/5010050/5010054/4610048/521 00 MINIMUM UNIT CAPACITY (%) Standard Compressor50505050505027332333 Digital Compressor17171717171713161116 CKT CircuitMCHX Microchannel heat ExchangerODF Outside Diameter, FemaleRTPF Round Tube Plate FinPhysical data6 LEGEND*Typical operating charge with 25 ft of interconnecting piping.