Carrier 24ABA4 Product Data

Contents

6Accessory Description and Usage (Listed Alphabetically) -- Continued13. Time--Delay RelayAn SPST delay relay which briefly continues operation of indoorblower motor to provide additional cooling after the compressorcycles off.NOTE: Most indoor unit controls include this feature. For thosethat do not, use the guideline below.Usage Guideline:For improved efficiency ratings for certaincombinations of indoor and outdoor units. Refer toARI Unitary Directory.14. Winter Start ControlThis control is designed to alleviate nuisance opening of thelow--pressure switch by bypassing it for the first 3 minutes ofoperation.ELECTRICAL DATAUNIT SIZE V/PHOPERVOLTS* COMPR FAN MCAMIN WIRESIZE{60° CMIN WIRESIZE{75° CMAXLENGTH(FT)}60° CMAXLENGTH(FT)}75° CMAX FUSE**or CKT BRKAMPSMAX MIN LRA RLA FLA18208/230/1 253 19748.0 9.0 0.5 11.7 14 14 67 64 1524 58.3 13.5 0.7 17.6 14 14 45 43 2530 73.0 14.1 1.1 18.7 14 14 42 40 3036 79.0 16.7 1.2 22.0 12 12 57 54 3542 112.0 17.9 1.2 23.6 10 10 85 81 4048 117.0 21.8 1.2 28.4 10 10 70 67 4060 134.0 26.4 1.2 34.2 8 8 91 86 50* Permissible limits of the voltage range at which the unit will operate satisfactorily{ If wire is applied at ambient greater than 30˚ C (86˚ F), consult table 310 ---16 of the NEC (ANSI/NFPA 70). The ampacity of non ---metallic---sheathed cable(NM), trade name ROMEX, shall be that of 60˚ C (140˚ F) conditions, per the NEC (ANSI/NFPA 70) Article 336 ---26. If other than uncoated (no ---plated), 60or 75˚ C (140 or 167˚ C) insulation, copper wire (solid wire for 10 AWG or smaller, stranded wire for larger than 10 AWG) is used, consult applicable tablesof the NEC (ANSI/NFPA 70).} Length shown is as measured 1 way along wire path between unit and service panel for voltage drop not to exceed 2%.** Time ---Delay fuse.FLA --- Full Load AmpsLRA --- Locked Rotor AmpsMCA --- Minimum Circuit AmpsRLA --- Rated Load AmpsNOTE: Control circuit is 24 ---V on all units and requires external power source. Copper wire must be used from service disconnect to unit.All motors/compressors contain internal overload protection.A--WEIGHTED SOUND POWER (DBA)UNIT SIZE STANDARDRATINGTYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)125 250 500 1000 2000 4000 800018 76 56.0 60.0 65.0 72.0 65.0 60.5 53.524 76 52.5 62.5 66.0 69.5 66.5 62.0 57.030 76 53.5 64.5 69.0 70.0 68.5 66.0 59.536 76 52.0 60.0 65.5 69.5 64.0 63.0 56.042 77 50.5 58.5 63.0 72.0 66.0 62.5 57.548 78 58.0 64.5 66.5 69.0 65.0 63.5 59.060 78 53.5 67.0 65.5 67.5 65.5 63.0 60.0A--WEIGHTED SOUND POWER (DBA) WITH ACCESSORY SOUND HOODUNIT SIZE STANDARDRATINGTYPICAL OCTAVE BAND SPECTRUM (without tone adjustment)125 250 500 1000 2000 4000 800018 74 56.0 60.0 65.0 69.0 63.0 60.0 52.524 74 52.0 62.0 66.5 68.5 66.0 61.0 56.530 75 53.5 64.5 69.0 69.5 68.0 65.5 59.036 75 52.0 62.0 65.5 67.5 63.0 61.0 53.542 75 51.0 60.0 62.5 68.5 64.0 61.0 55.048 75 59.5 63.5 66.5 67.5 64.0 62.0 55.560 75 54.0 63.5 65.0 66.0 63.5 61.0 57.0CHARGING SUBCOOLING (TXV--TYPE EXPANSION DEVICE)UNIT SIZE ---SERIES REQUIRED SUBCOOLING (_F)18--- 30 1024--- 30 1130--- 30 836--- 30 1042--- 30 1248--- 30 960--- 30 924ABA4