TECHNICAL SUPPORT MANUAL Split System Air Conditioner R2A3

Transcription

1 TECHNICAL SUPPORT MANUAL Split System Air Conditioner R2A3 DANGER, WARNING, CAUTION, and NOTE The signal words DANGER, WARNING, CAU- TION, and NOTE are used to identify levels of hazard seriousness. The signal word DANGER is only used on product labels to signify an immediate hazard. The signal words WARNING, CAUTION, and NOTE will be used on product labels and throughout this manual and other manuals that may apply to the product. DANGER Immediate hazards which will result in severe personal injury or death. WARNING Hazards or unsafe practices which could result in severe personal injury or death. CAUTION Hazards or unsafe practices which may result in minor personal injury or product or property damage. NOTE Used to highlight suggestions which will result in enhanced installation, reliability, or operation. Safety Labeling and Signal Words Signal Words in Manuals The signal word WARNING is used throughout this manual in the following manner: WARNING! WARNING The signal word CAUTION is used throughout this manual in the following manner:! CAUTION Signal Words on Product Labeling Signal words are used in combination with colors and/or pictures on product labels. TABLE OF CONTENTS Wiring Diagrams Charging Chart Tech Labels (Expanded Data) Cooling Multipying Factors Exploded Drawings Parts List Number Identification ! WARNING DEATH, PERSONAL INJURY, AND/OR PROPERTY DAMAGE HAZARD Failure to carefully read and follow this warning could result in equipment malfunction, property damage, personal injury and/or death. Installation or repairs made by unqualified persons could result in equipment malfunction, property damage, personal injury and/or death. The information contained in this manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments. Installation must conform with local building codes and with the National Electrical Code NFPA70 current edition or Canadian Electrical Code Part 1 CSA C March 2007

2 Sizes: 18, 24, 30, 36, 42, Symbols are electrical representation only. 2. Compressor and fan motor furnished with inherent thermal protection. 3. To be wired in accordance with National Electric N.E.C. and local codes. 4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS. 5. Use copper conductors only. Use conductors suitable for at least 75 C (167 F). 6. Connection for typical cooling only thermostat. For other arrangements see installation instructions. 7. If indoor section has a transformer with a grounded secondary, connect the grounded side to the BRN/YEL lead. 8. When start capacitor and relay are installed, start thermistor (PTC) is not used. 9. CH not used on all units. 10. If any of the original wire, as supplied, must be replaced, use the same or equivalent wire. 11. Check all electrical connections inside control box for tightness. 12. Do not attempt to operate unit until service valves have been opened. 13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize between high and low side before starting. 14. Wire not present if HPS, LPS or CTD are used.

3 Size: Symbols are electrical representation only. 2. Compressor and fan motor furnished with inherent thermal protection. 3. To be wired in accordance with National Electric N.E.C. and local codes. 4. N.E.C. class 2, 24 V circuit, min. 40 VA required, 60 VA on units installed with LLS. 5. Use copper conductors only. Use conductors suitable for at least 75 C (167 F). 6. Connection for typical cooling only thermostat. For other arrangements see installation instructions. 7. If indoor section has a transformer with a grounded secondary, connect the grounded side to the BRN/YEL lead. 8. When start capacitor and relay are installed, start thermistor (PTC) is not used. 9. CH not used on all units. 10. If any of the original wire, as supplied, must be replaced, use the same or equivalent wire. 11. Check all electrical connections inside control box for tightness. 12. Do not attempt to operate unit until service valves have been opened. 13. Do not rapid cycle compressor. Compressor must be off 3 minutes to allow pressures to equalize between high and low side before starting. 14. Wire not present if HPS, LPS or CTD are used.

4 TECHNICAL SUPPORT MANUAL Split System Air Conditioner: R2A3 R 22 CHARGING CHART Find the required Subcooling Temperature on the unit Rating Plate. Use the closest column on the chart below (5, 10, 15, or 20). Add or remove refrigerant until both the Liquid Line Temperature and Liquid Pressure agree with chart data. Measured Liquid Pressure (psig) Rating Plate (required) Subcooling Temperature ( F) R 22 Required Liquid Line Temperature ( F)

5 Size Outdoor With EB2X18B Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

6 Size Outdoor With EB2X30B Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

7 Size Outdoor With EB2X30B Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

8 Size Outdoor With EB2X36F Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

9 Size Outdoor With EB2X42J Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

10 Size Outdoor With EB2X48J Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

11 Size Outdoor With EB2X60L Cooling Outdoor Ambient Temperature Degrees F, Dry Bulb Entering Temperature Degrees F, Wet Bulb CFM MBh S/T HI PR LO PR MBh S/T HI PR LO PR MBh S/T HI PR LO PR Total capacities are net (I.D. blower heat subtracted) system capacities based on 25 line set. At TVA rating indoor condition (75 F db, 63 F wb), all other indoor air temperatures are at 80 F db ^ System amps are total of indoor and outdoor amps. Chart data is for 80 F indoor dry bulb. For indoor db temperatures other than 80 F, measure db and CFM, and plug these into the formula below. Measure outdoor db and indoor wet bulb, apply these to the chart above, find MBh and S/T, and plug these into the formula below. (Note: if indoor db is the only thing changing, total capacity, MBh, stays the same.) Sensible Capacity at db LOWER than 80 F = ( MBh x S/T ) ( 80 db ) x 835 x CFM ( db 80 ) x 835 x CFM Sensible Capacity at db HIGHER than 80 F = ( MBh x S/T ) +

12 COOLING Multiplying Factors for other Combinations R2A318 >EB2X18B ED2X18B MV08B EHD2X24A 9MPV EB2X18B 8MPV ED2X24B EHD2X24A MV08B EB2X18B MV08B ED2X24B 8MPV EHD2X24A MV12F EB2X24B ED2X24B MV08B FS(M,U)2X EB2X24B 8MPV ED2X24F FS(M,U)2X EB2X24B MV08B ED2X24F 9MPV FEM2X EB2X24F ED2X24F 9MPV FEM2X EB2X24F 9MPV ED2X24F MV12F FVM2X EB2X24F 9MPV EMA2X24D FSA2X EB2X24F MV12F EHD2X24A FSA2X ED2X18B EHD2X24A 8MPV ED2X18B 8MPV EHD2X24A 9MPV R2A324 >EB2X24B ED2X24F MV12F EHD2X30A EB2X24B 8MPV ED2X30B EHD2X30A 8MPV EB2X24B MV08B ED2X30B 8MPV EHD2X30A 8MPV EB2X24F ED2X30B MV08B EHD2X30A 8MPV EB2X24F 8MPV ED2X30F EHD2X30A 8MPV EB2X24F 9MPV ED2X30F 8MPV EHD2X30A 9MPV EB2X24F 9MPV ED2X30F 9MPV EHD2X30A 9MPV EB2X24F MV12F ED2X30F 9MPV EHD2X30A 9MPV EB2X30B ED2X30F MV12F EHD2X30A 9MPV EB2X30B 8MPV EMA2X24D EHD2X30A MV08B EB2X30B MV08B EHD2X24A EHD2X30A MV12F EB2X30F EHD2X24A 8MPV EHD2X30A MV16J EB2X30F 8MPV EHD2X24A 8MPV EHD2X30A MV20N EB2X30F 9MPV EHD2X24A 8MPV FS(M,U)2X > Indicates Tested continued on next page

13 COOLING Multiplying Factors for other Combinations (continued) EB2X30F 9MPV EHD2X24A 8MPV FS(M,U)2X EB2X30F MV12F EHD2X24A 9MPV FEM2X ED2X24B EHD2X24A 9MPV FEM2X ED2X24B 8MPV EHD2X24A 9MPV FVM2X ED2X24B MV08B EHD2X24A 9MPV FVM2X ED2X24F EHD2X24A MV08B FSA2X ED2X24F 8MPV EHD2X24A MV12F FSA2X ED2X24F 9MPV EHD2X24A MV16J ED2X24F 9MPV EHD2X24A MV20N R2A330 >EB2X30B ED2X30F 9MPV EHD2X30A MV16J EB2X30B 8MPV ED2X30F MV12F EHD2X30A MV20N EB2X30B MV08B ED2X36B EHD2X36A EB2X30F ED2X36B 8MPV EHD2X36A 8MPV EB2X30F 8MPV ED2X36B MV08B EHD2X36A 8MPV EB2X30F 9MPV ED2X36F EHD2X36A 8MPV EB2X30F 9MPV ED2X36F 8MPV EHD2X36A 8MPV EB2X30F MV12F ED2X36F 9MPV EHD2X36A 9MPV EB2X36B ED2X36F 9MPV EHD2X36A 9MPV EB2X36B 8MPV ED2X36F MV12F EHD2X36A 9MPV EB2X36B MV08B ED2X36J EHD2X36A 9MPV EB2X36F ED2X36J 8MPV EHD2X36A MV08B EB2X36F 8MPV ED2X36J 8MPV EHD2X36A MV12F EB2X36F 9MPV ED2X36J 9MPV EHD2X36A MV16J EB2X36F 9MPV ED2X36J MV16J EHD2X36A MV20N EB2X36F MV12F EMA2X36D FS(M,U)2X EB2X36J EHD2X30A FSU2X EB2X36J 8MPV EHD2X30A 8MPV FEM2X > Indicates Tested continued on next page

14 COOLING Multiplying Factors for other Combinations (continued) EB2X36J 8MPV EHD2X30A 8MPV FEM2X EB2X36J 9MPV EHD2X30A 8MPV FSM2X EB2X36J MV16J EHD2X30A 8MPV FEM2X ED2X30B EHD2X30A 9MPV FVM2X ED2X30B 8MPV EHD2X30A 9MPV FVM2X ED2X30B MV08B EHD2X30A 9MPV FSA2X ED2X30F EHD2X30A 9MPV FSA2X ED2X30F 8MPV EHD2X30A MV08B ED2X30F 9MPV EHD2X30A MV12F R2A336 >EB2X36F ED2X36F 9MPV EHD2X36A MV16J EB2X36B ED2X36F MV12F EHD2X36A MV20N EB2X36B 8MPV ED2X36J EHD2X42A EB2X36B MV08B ED2X36J 8MPV EHD2X42A 8MPV EB2X36F 8MPV ED2X36J 8MPV EHD2X42A 8MPV EB2X36F 9MPV ED2X36J 9MPV EHD2X42A 8MPV EB2X36F 9MPV ED2X36J MV16J EHD2X42A 8MPV EB2X36F MV12F ED2X42J EHD2X42A 9MPV EB2X36J ED2X42J 8MPV EHD2X42A 9MPV EB2X36J 8MPV ED2X42J 8MPV EHD2X42A 9MPV EB2X36J 8MPV ED2X42J 9MPV EHD2X42A 9MPV EB2X36J 9MPV ED2X42J MV16J EHD2X42A MV08B EB2X36J MV16J ED2X42L EHD2X42A MV12F EB2X42J ED2X42L 9MPV EHD2X42A MV16J EB2X42J 8MPV EMA2X36D EHD2X42A MV20N EB2X42J 8MPV EHD2X36A FSU2X EB2X42J 9MPV EHD2X36A 8MPV FS(M,U)2X EB2X42J MV16J EHD2X36A 8MPV FEM2X > Indicates Tested continued on next page

15 COOLING Multiplying Factors for other Combinations (continued) EB2X42L EHD2X36A 8MPV FSM2X EB2X42L 9MPV EHD2X36A 8MPV FEM2X ED2X36B EHD2X36A 9MPV FEM2X ED2X36B 8MPV EHD2X36A 9MPV FVM2X ED2X36B MV08B EHD2X36A 9MPV FVM2X ED2X36F EHD2X36A 9MPV FVM2X ED2X36F 8MPV EHD2X36A MV08B FVM2X ED2X36F 9MPV EHD2X36A MV12F FSA2X R2A342 >EB2X42J ED2X42J 9MPV EHD2X42A 9MPV EB2X42J 8MPV ED2X42J MV16J EHD2X42A 9MPV EB2X42J 8MPV ED2X42L EHD2X42A MV16J EB2X42J 9MPV ED2X42L 9MPV EHD2X42A MV20N EB2X42J MV16J ED2X48F EHD2X48A EB2X42L ED2X48F 8MPV EHD2X48A 8MPV EB2X42L 9MPV ED2X48F 9MPV EHD2X48A 8MPV EB2X48F ED2X48J EHD2X48A 8MPV EB2X48F 8MPV ED2X48J 8MPV EHD2X48A 9MPV EB2X48F 9MPV ED2X48J 8MPV EHD2X48A 9MPV EB2X48J ED2X48J 9MPV EHD2X48A 9MPV EB2X48J 8MPV ED2X48J MV16J EHD2X48A MV16J EB2X48J 8MPV ED2X48L EHD2X48A MV20N EB2X48J 9MPV ED2X48L 9MPV FS(M,U)2X EB2X48J MV16J EMA2X48D FS(M,U)2X EB2X48L EHD2X42A FEM2X EB2X48L 9MPV EHD2X42A 8MPV FEM2X ED2X42J EHD2X42A 8MPV FVM2X ED2X42J 8MPV EHD2X42A 8MPV FVM2X > Indicates Tested continued on next page

16 COOLING Multiplying Factors for other Combinations (continued) ED2X42J 8MPV EHD2X42A 9MPV FVM2X R2A348 >EB2X48J ED2X48J 8MPV EHD2X48A 9MPV EB2X48F ED2X48J 8MPV EHD2X48A 9MPV EB2X48J 8MPV ED2X48J 9MPV EHD2X48A MV16J EB2X48J 8MPV ED2X48J MV16J EHD2X48A MV20N EB2X48J 9MPV ED2X48L EHD2X60A EB2X48J MV16J ED2X48L 9MPV EHD2X60A 8MPV EB2X48L ED2X60J EHD2X60A 8MPV EB2X48L 9MPV ED2X60J 8MPV EHD2X60A 9MPV EB2X60J ED2X60J 8MPV EHD2X60A 9MPV EB2X60J 8MPV ED2X60J 9MPV EHD2X60A MV16J EB2X60J 8MPV ED2X60J MV16J EHD2X60A MV20N EB2X60J 9MPV ED2X60L FS(M,U)2X EB2X60J MV16J ED2X60L 9MPV FS(M,U)2X EB2X60L EMA2X48D FEM2X EB2X60L 9MPV EHD2X48A FEM2X ED2X48F EHD2X48A 8MPV FVM2X ED2X48J EHD2X48A 8MPV FVM2X R2A360 >EB2X60L ED2X60J 8MPV EHD2X60A 8MPV EB2X60J ED2X60J 8MPV EHD2X60A 9MPV100 EB2X60J 8MPV ED2X60J 9MPV100 EHD2X60A 9MPV EB2X60J 8MPV ED2X60J MV16J EHD2X60A MV16J EB2X60J 9MPV100 ED2X60L EHD2X60A MV20N EB2X60J MV16J ED2X60L 9MPV125 FS(M,U)2X EB2X60L 9MPV125 EHD2X60A FEM2X ED2X60J EHD2X60A 8MPV FVM2X > Indicates Tested

17 TECHNICAL SUPPORT MANUAL Split System Air Conditioner: R2A3 NOTE: This illustration is for reference only. Your unit may differ in appearance or may not include all components shown. Please refer to Parts List for exact parts listing. Nut B Fan Guard L Motor Fan 2 32 Raceway Top Cover A Fan 3 C Grille Inlet Condenser, Coil Assembly 6 F Panel Service D Box Control E Box Control. Cover Strap Capacitor P Compressor 1 Plug, Compressor 9 N 5 Capacitor Support Coil Contactor 4 Base Pan G Barrier 33 O Low Volt Lug Ground 11 Bolt, SHLDR (4) Valve Service Suction 7 8 Valve Service, Liquid 10 Grommet Compressor

18 TECHNICAL SUPPORT MANUAL Split System Air Conditioner: R2A3 R2A3 PARTS LIST R2A318AKA100 R2A324AKA100 R2A330AKA100 R2A336AKA400 R2A342AKA300 R2A348AKA300 R2A360AKA300 KEY NO. DESCRIPTION PART NO. 1 Compressor ZR16KAPFV ZR21KAPFV ZR26KAPFV ZR32KAPFV ZR38KAPFV ZR44KAPFV ZR54KAPFV Motor, Condenser Fan Fan Blade Contactor, 30 Amp, 1 Pole Amp, 2 Pole Capacitor 370V 30+5 Mfd V 35+5 Mfd V 45+5 Mfd V Mfd V 55+5 Mfd V 60+5 Mfd V 80+5 Mfd Condenser Coil Service Valve, Suction Service Valve, Liquid Plug, Compressor Harness Grommet, Compressor Bolt, Compressor Mounting Raceway continued on next page

19 TECHNICAL SUPPORT MANUAL Split System Air Conditioner: R2A3 KEY NO. DESCRIPTION R2A3 PARTS LIST (continued) PART NO Lug, Ground A Panel, Top A B Nut, Hex C Grille, Inlet C C C C C C C C C D Box, Control E Cover, Control Box E F Panel, Service F F F G Pan, Base G L Guard, Fan L N Pad, Coil N1 Support, Coil O Barrier, Low Voltage P Strap, Capacitor P )( Manual, Installation )( Manual, Owner s )( Warranty Card R2A318AKA100 R2A324AKA100 R2A330AKA100 R2A336AKA400 R2A342AKA300 R2A348AKA300 R2A360AKA

20 TECHNICAL SUPPORT MANUAL Split System Air Conditioner: R2A3 OUTDOOR UNIT MODEL NUMBER IDENTIFICATION GUIDE (single phase) Digit Position: , Example Part Number: R 2 A 3 18 A K A R = Marathem BRANDING 2 = R 22 4 = R 410A REFRIGERANT A = Air Conditioner H = Heat Pump TYPE 3 = 13 SEER 4 = 14 SEER NOMINAL EFFICIENCY 18 = 18,000 BTUH = 1½ tons 24 = 24,000 BTUH = 2 tons 30 = 30,000 BTUH = 2½ tons 36 = 36,000 BTUH = 3 tons 42 = 42,000 BTUH = 3½ tons 48 = 48,000 BTUH = 4 tons 60 = 60,000 BTUH = 5 tons NOMINAL CAPACITY A = Standard Grille G = Coil Guard Grille FEATURES K = 208/ Sales Code Engineering Revision Extra Digit Extra Digit VOLTAGE ACCESSORIES PART NUMBER IDENTIFICATION GUIDE Digit Position: , 7 8, 9 10, 11 Example Part Number: N A S A C H N = Non Branded A = Accessory BRANDING PRODUCT GROUP S = Split System (AC & HP) A = Original B = 2nd Generation 0 = Generic or Not Applicable 2 = R 22 KIT USAGE MAJOR SERIES 4 = R 410A REFRIGERANT Product Identifier Number Package Quantity Type of Kit (Example: CH = Crankcase Heater) International Comfort Products, LLC Lewisburg, Tennessee