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R4A3Product SpecificationsEFFICIENT 13 SEER AIR CONDITIONERENVIRONMENTALLY BALANCED R- 410A REFRIGERANT1- 1/2 THRU 5 TONS SPLIT SYSTEM208/230 Volt, 1- phase, 60 HzREFRIGERATION CIRCUITS Scroll compressors on all modelsS Copper tube / aluminum fin coilEASY TO INSTALL AND SERVICES Easy Access service valves on all modelsS External high and low refrigerant service portsS Only two screws to access control panelS Factory charged with R- 410A refrigerantBUILT TO LASTS Pre- painted cabinet finish over galvanized steelS Models available with coated inlet grille with 2 (51mm)spacing or with 3/8 (10mm) spacing for extra protectionLIMITED WARRANTY*S 5 year compressor limited warrantyS 5 year parts limited warranty (including compressor andcoil)- With timely registration, an additional 5 year partslimited warranty (including compressor and coil)* For residential applications only. See warrantycertificate for complete details and restrictions, includingwarranty coverage for other Use of the AHRI Certified TM Mark indicates amanufacturer’s participation in the program. Forverification of certification for individual products,go to www.ahridirectory.org .Operating Dimensionslength/width(sq.) x heightin. (mm)Ship / OperatingWeight lbs.(kg)2023- 1/8 x 24- 7/8(587 x 632)124 / 108(56 / 49)14.32523- 1/8 x 24- 7/8(587 x 632)127 / 107(58 / 49)30,00016.62525- 3/4 x 28- 11/16( 654 x 729)149 / 126(68 / 57)336,00018.13031- 3/16 x 24- 7/8(792 x 632)151 / 134(68 / 61)3- 1/242,00023.54031- 3/16 x 31- 11/16(792 x 804)186 / 172(85 / 78)448,00024.34031- 3/16 x 35- 1/16(792 x 891)205 / 175(93 / 79)560,00034.45031- 3/16 x 28- 1/4(792 x 718)218 / 203(99 / 92)Size(ton)NominalBTU/hrMin. Circuit Max. FuseAmpacity or Breaker1- 1/218,00011.8224,0002- 1/2Specifications subject to change without notice.421 65 6002 09 11/7/17

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3OUTDOOR UNIT MODEL NUMBER IDENTIFICATION GUIDE (single phase)Digit Position:12345, 6789101112Example Part Number:R4A324AKH200Product Family4 R- 410AA Air ConditionerH Heat Pump3 13 SEERREFRIGERANTTYPENOMINAL EFFICIENCY18 18,000 BTUH 1- 1/2 tons24 24,000 BTUH 2 tons30 30,000 BTUH 2- 1/2 tons36 36,000 BTUH 3 tons42 42,000 BTUH 3- 1/2 tons48 48,000 BTUH 4 tons60 60,000 BTUH 5 tonsNOMINAL CAPACITYA Standard GrilleG Coil Guard GrilleFEATURESK 208/230- 1- 60VOLTAGESales CodeEngineering RevisionExtra DigitExtra DigitACCESSORIES PART NUMBER IDENTIFICATION GUIDEDigit Position:123456, 78, 910, 11Example Part Number:NASA00101CHN Non- BrandedBRANDINGA AccessoryPRODUCT GROUPS Split System (AC & HP)A OriginalB 2nd Generation0 Generic or Not Applicable4 R- 410AProduct Identifier NumberPackage QuantityType of Kit (Example: CH Crankcase Heater)2KIT USAGEMAJOR SERIESSpecifications subject to change without notice.REFRIGERANT421 65 6002 09

1R4A360AKH100R4A360GKH100Specifications subject to change without notice.18,243036,42,48,60UNIT 4A318AKH10028 11/1628 11/16587.3654.0N 23 1/8N 25 3/4NN23 1/825 3/431 3/16-"X"587.3654.0792.5-MINIMUM GROUND MOUNTINGPAD APPLICATION DIMENSIONSY YESN NO17 7/820 7/1622 15/16-"Y"28 1/428 1/435 1/1635 1/1624 /43/43/43/43/43/4INCH454.6518.5583.2-MINIMUM ROOF-TOP MOUNTINGPAD APPLICATION DIMENSIONS792.5N 31 3/16N792.5792.5N 31 3/16N 31 3/16NN792.531 11/16792.5N 31 3/16N 31 3/16N792.5N 31 3/16NN31 11/16792.5N 31 3/16N24 7/8654.0792.5N 25 3/4N 31 3/16NN24 7/824 7/8587.3587.3N 23 1/8N 23 1/8NBN24 7/8INCH24 7/8MM587.3INCHN 23 ERISTICS208-230-1-60SERIES460-3-60208/230-3-60421 65 6002 9.119.119.119.119.119.1INCH6 9/166 9/166 9/166 9/166 9/166 9/166 9/166 9/164 7/164 7/164 7/164 7/164 7/164 7/16DMMINCH24 11/1624 11/1624 11/1624 11/1624 11/1624 11/1624 11/1624 11/1621 1/421 1/418 1/1618 1/1618 1/1618 9539.9459.0459.0459.0459.0INCH9 1/89 1/89 1/89 1/89 1/89 1/89 1/89 1/89 1/89 1/87 13/167 13/167 13/167 .276.276.2NOTE: ALL DIMENSIONS IN INCH 13.0113.0113.0113.0113.0E161615 3/415 3/4161615 9/1615 9/1612 1/212 1/212 1/212 419.1419.1393.7393.7279.4279.4298.5298.5INCH12 3/412 3/415 5/815 5/813 3/413 3/410 1/410 1/412 1/212 1/2121211 7/811 IPPINGWEIGHT32 3/1632 3/1632 3/1632 3/1632 3/1632 3/1632 3/1632 3/1626 3/426 3/424 1/824 1/824 1/824 9.9612.7612.7612.7612.7SHIPPINGLENGTH / WIDTH(Sq.)INCHMM29 7/829 7/836 11/1636 11/1633 1/433 1/426 7/1626 7/1630 3/830 3/826 7/1626 7/1626 7/1626 7/16INCH.3. SERIES DESIGNATION IS THE 10TH POSITION OF THEUNIT MODEL NUMBER.2. CENTER OF GRAVITYSD5433-4 NEW REV. 2672.1672.1672.1672.1MMSHIPPINGHEIGHT1. ALLOW 24" (609.6) CLEARANCE TO SERVICE SIDE OF UNIT, 48" (1219.2) ABOVE UNIT,6" (152.4) ON ONE SIDE, 12" (304.8) ON REMAINING SIDE, AND 24" (609.6) BETWEENUNITS FOR PROPER AIRFLOW.NOTES:15 1/215 1/216 3/816 3/815 1/215 1/216 1/216 1/215 1/215 1/2111111 3/411 3/4KU.S. ECCN: Not Subject to Regulation 7.5317.5317.5317.5304.8304.8JPRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A33

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3PHYSICAL DATAModel SizeNominal Cooling Capacity (BTU/hr)Nominal SEERPSC Fan Motor HPFan RPM (single speed)Fan CFMCoil Face Area ft2 (m2)1818,00013.01/12110017008.40(.78)1 - 2033/8 (10)3/4 (19)2424,00013.01/10110022188.40(.78)1 - 2533/8 (10)3/4 (19)3030,00013.01/101100216911.49(1.07)1 - 2533/8 (10)3/4 (19)3636,00013.01/51100316712.93(1.20)1 - 2553/8 (10)7/8 (22)4242,00013.01/51100310017.25(1.60)1 - 2543/8 (10)7/8 (22)4848,00013.01/41100336519.40(1.80)1 - 2553/8 (10)7/8 (22)6060,00013.01/41100340015.09(1.40)2 - 2063/8 (10)7/8 (22)Coil Rows - fins per inchCircuitsLiquid Line Connection Size in. (mm)Vapor Line Connection Size in. (mm)Recommended Line Set3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10) 3/8 (10)Liquid Tube Diameter in. (mm)Recommended Line Set1- 1/83/4 (19)* 3/4 (19) 3/4 (19)* 7/8 (22)* 7/8 (22)* 7/8 (22)*(29)*Vapor Tube Diameter in. (mm)* Recommended Vapor Tube Line size is for standard installations. These recommendations may not apply to “LongLine” installations. Consult the Long Line Application Guideline document before purchasing/installing line sets.3.153.154.625.426.077.108.00Factory Charge R- 410A lbs. ired Subcooling F ( C)14 (7.8) 10 (5.6) 10 (5.6) 11 (6.1) 10 (5.6) 13 (7.2) 10 (5.6)ELECTRICAL DATA (208/230- 1- 60, voltage range 197V - 253V)Model SizeMinimum Circuit Ampacity MCA (amps)Maximum OverCurrentProtective device - MOCP (amps)Compressor RLA (Rated Load Amps)LRA (Locked Rotor Amps)Fan Motor FLA (Full Load 01.117.9112.01.118.393.01.426.4134.01.4Check the piston size shipped with the indoor unit to see if it matches the required indoor piston size. If it does not match,replace the indoor piston with the correct size per the table below.Outdoor Unit Connected to a Factory Approved Indoor Unit(with FEM4P* Fan Coil)Outdoor Unit Size - Series18- H24- H30- H36- H42- H48- HPiston Size by Outdoor495561-7378NOTE: Pistons shipped with outdoor units are only qualified and approved with the above listed fan coils. The pistonincluded with the FMA4P* and FM(C,U)4P* fan coils are unique to those products and CANNOT be replaced with thepiston shipped with the outdoor unit. Refer to the AHRI Directory to check if your combination can use a piston or requiresan accessory TXV.4Specifications subject to change without notice.421 65 6002 09

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3R4A3 SOUND RATINGSA- Weighted Sound Power Level - Without Sound ShieldTypical Octave Band Spectrum (dBA without pure tone adjustment)Standard1252505001000200040008000Rating (dBA)Unit 57.567.072.075.072.568.061.0Note: Tested in accordance with AHRI Standard 270- 2008 (not listed in AHRI).A- Weighted Sound Power Level - With Sound ShieldTypical Octave Band Spectrum (dBA without pure tone adjustment)Standard1252505001000200040008000Rating (dBA)Unit 68.072.574.572.568.060.5Note: Tested in accordance with AHRI Standard 270- 2008 (not listed in AHRI).R- 410A COOLING CAPACITY LOSS FOR VARIOUS LINE LENGTHS & TUBE DIAMETERSLiquidModelLineSizein.(mm)182430363/8 (10)424860AcceptableVapor LineSizesin. (mm)1/2 (13)5/8 (16)3/4 (19)5/8 (16)3/4 (19)7/8 (22)5/8 (16)3/4 (19)7/8 (22)5/8 (16)3/4 (19)7/8 (22)3/4 (19)7/8 (22)1- 1/8 (29)3/4 (19)7/8 (22)1- 1/8 (29)3/4 (19)7/8 (22)1- 1/8(29)Cooling Capacity Loss (%) at Total Equivalent Line Length, feet (m)Refer to Long Line Application Guideline to calculate equivalent lengthStandard ApplicationLong Line Application (Requires 51123162193113426318411262Consult the Long Line Application Guideline document before purchasing/installing line sets.Applications in shaded area may have height restrictions that limit allowable total equivalent length when outdoor unit is below indoorunit.421 65 6002 09Specifications subject to change without notice.5

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3COOLING PERFORMANCE FOR COMBINATION RATINGS Indoor ModelsFor complete ratings information, use the AHRI website directory search: www.AHRIdirectory.org.New ratings may be listed online before Specification Sheets are updated.Model Size18243036424860INDOOR 57,500AHRI STANDARD RATINGSCooling 95 F (35 .0011.0011.0011.0011.0011.0011.00*Tested CombinationEER – Energy Efficiency RatioSEER – Seasonal Energy Efficiency RatioTDR - Time delay RelayTXV – Thermostatic Expansion ValveRatings are net values reflecting the effects of circulating fan motor heat. Supplemental electric heat is not included.Tested outdoor/indoor combinations have been tested in accordance with DOE test procedures for central air conditioners. Ratings for other combinationsare determined under DOE computer simulation procedures.Determine actual CFM values obtainable for your system by referring to fan performance data in fan coil or furnace literature.TESTED AHRI COMBINATION RATINGS*NOTE: Ratings contained in this document are subject to change at any time.Or scan this QR code:For AHRI ratings certificates, please refer to the AHRI directory. www.ahridirectory.orgAdditional ratings and system combinations can be accessed via the Maratherm .aspx?Brand Maratherm6Specifications subject to change without notice.421 65 6002 09