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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 Min. Circuit Max. FuseAmpacity or BreakerUse 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 x width x height in.(mm)24- 7/8 x 23- 1/8 x 23- 1/8(630 x 587 x 587)Ship / OperatingWeight lbs.(kg)Size(tons)NominalBTU/hr1- 1/218,00011.820224,00014.32524- 7/8 x 23- 1/8 x 23- 1/8(630 x 587 x 587)127 / 107 (58 / 49)2- 1/230,00016.62528- 11/16 x 25- 3/4 x 25- 3/4(729 x 654 x 654)149 / 126 (68 / 57)336,00018.13024- 7/8 x 31- 3/16 x 31- 3/16(630 x 792 x 792)151 / 134 (68 / 61)3- 1/242,00023.54031- 11/16 x 31- 3/16 x 31- 3/16(804 x 792 x 792)186 / 172 (85 / 78)448,00024.34035- 1/16 x 31- 3/16 x 31- 3/16(891 x 792 x 792)205 / 175 (93 / 79)560,00034.45028- 1/4 x 31- 3/16 x 31- 3/16(718 x 792 x 792)218 / 203 (99 / 92)Specifications subject to change without notice.124 / 108 (56 / 49)421 65 6002 06 12/08/16

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3OUTDOOR UNIT MODEL NUMBER IDENTIFICATION GUIDE (single phase)Digit Position:12345, 6789101112Example Part Number:R4A324AKN200Product 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 Applicable2 R- 224 R- 410AProduct Identifier NumberPackage QuantityType of Kit (Example: CH Crankcase Heater)2KIT USAGEMAJOR SERIESSpecifications subject to change without notice.REFRIGERANT421 65 6002 06

Split System Air Conditioner: R4A3SD5414-4PRODUCT SPECIFICATIONS421 65 6002 06Specifications subject to change without notice.3

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- F24- G30- G36- F42- N48- GPiston 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 06

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)Model18- F7164.062.063.068.064.062.057.024- G7450.960.666.471.065.561.159.230- G7254.859.365.168.266.461.657.336- F7550.561.064.567.062.560.052.542- N7556.064.569.571.066.064.059.048- G7655.562.969.671.269.566.359.160- N7957.567.072.075.072.568.061.0Note: 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)Model18- F7066.064.064.067.063.060.054.024- G7451.161.366.671.265.060.055.630- G7251.959.364.867.365.261.154.836- F7551.062.064.565.562.059.551.542- N7455.5646969.565.563.557.548- G7555.862.669.770.668.765.458.660- N7957.568.072.574.572.568.060.5Note: 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 06Specifications 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 4A342*KNR4A348*KGR4A360*KNINDOOR 057,500AHRI 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 06

PRODUCT SPECIFICATIONSSplit System Air Conditioner: R4A3EXPANDED COOLING PERFORMANCE RATINGS For Outdoor / 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.EVAPAIRR4A318(A,G)KF* Series Outdoor Section With EN*4X24L14A* Indoor SectionCONDENSER ENTERING AIR TEMPERATURES deg .292.322.332.322.322.32Total sensible capacities are based on net capacities. Blower heat has been subtracted.Sensible capacities shown are based on 800 F (270 C) entering air at the indoor coil. For sensible capacities at other than 800 F (270 C), deduct 835 Btuh(245 kW) per 1000 CFM (480 L/S) of indoor coil air for each degree below 800 F (270 C), or add 835 Btuh 245 kW) per 1000 CFM (480 L/S) of indoor coilair per degree above 800 F (270 C).Detailed cooling and heating capacities are based on indoor and outdoor unit at the same elevation per AHRI standard 210/240 -2008. If additional tubinglength is required and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur.System kw is total of indoor and outdoor unit kilowatts.EXPANDED COOLING PERFORMANCE RATINGS For Outdoor / 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.R4A324(A,G)KG* Series Outdoor Section With EN(A,D)4X24L14** Indoor SectionCONDENSER ENTERING AIR TEMPERATURES deg F758595105EVAPORATOR CapacityMBtuhCapacityMBtuhTotal sensible capacities are based on net capacities. Blower heat has been subtracted.Sensible capacities shown are based on 800 F (270 C) entering air at the indoor coil. For sensible capacities at other than 800 F (270 C), deduct 835 Btuh(245 kW) per 1000 CFM (480 L/S) of indoor coil air for each degree below 800 F (270 C), or add 835 Btuh 245 kW) per 1000 CFM (480 L/S) of indoor coilair per degree above 800 F (270 C).Detailed cooling and heating capacities are based on indoor and outdoor unit at the same elevation per AHRI standard 210/240 -2008. If additional tubinglength is required and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur.System kw is total of indoor and outdoor unit kilowatts.421 65 6002 06Specifications subject to change without notice.7