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24ANA
InfinitytSeries AirConditioners
with PuronrRefrigerant
2to5NominalTons(Sizes24to60)
InstallationInstructions
NOTE: Read the entire instruction manual before starting the IndoorThermostatControlOptions
installation.
Infinity Standard 2---stage
Unless otherwise noted, information in these installation Model
Control Thermostat
instructions pertain to both 24ANA1 and 24ANA7 series units.
Information that is unique to the 24ANA1 series will be identified
as such; likewise information that is un
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can be no deviation. Consult the Application Guideline and INSTALLATIONRECOMMENDATIONS Service Manual – Air Conditioners and Heat Pumps Using Puron NOTE: In some cases noise in the living area has been traced to Refrigeranttoobtain requiredunitchangesforspecificapplications gaspulsationsfrom improperinstallation ofequipment. andforR--22retrofit. 1. Locate unit away from windows, patios, decks, etc. where CheckEquipmentandJobSite unitoperation sound may disturb customer. UnpackUnit 2. Ensure that
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On rooftop applications,locateunitatleast6 in.(152.4 mm)above roof surface. ! CAUTION OperatingAmbient UNITDAMAGEHAZARD The minimum outdoor operating ambient in cooling mode is Failure to follow this caution may result in equipment 55_F/12.78_C without low ambient cooling enabled, and the damageorimproperoperation. maximum outdoor operating ambient in cooling mode is If ANY refrigerant tubing is buried, provide a 6 in. (152.4 125_F/51.67_C. On Infinity communicating systems only, for mm) vertica
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Table2–AccessoryUsage REQUIREDFOR REQUIREDFORSEACOAST LOW---AMBIENT COOLING REQUIREDFORLONG LINE Accessory APPLICATIONS APPLICATIONS APPLICATIONS* (Within2miles/3.22km) (Below55 °F/12.8_C) Accumulator No No No Standardon 24ANA7models. CompressorStartAssistCapacitorand Standardon 24ANA7models. Standardon 24ANA7models. Notrequiredfor 24ANA1 Relay} Notrequiredfor 24ANA1models. Notrequiredfor 24ANA1models. models. Crankcase Heater Standard Standard Standard Standardwith Infinity Control EvaporatorFr
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Refrigerant tubes and indoor coil should be evacuated using the recommended deep vacuum method of 500 microns. The alternate ! WARNING triple evacuation method may be used. See Service Manual for triple evacuation method. Always break a vacuum with dry ELECTRICALSHOCKHAZARD nitrogen._ Failure to follow this warning could result in personal DeepVacuumMethod injuryordeath. The deep vacuum method requires a vacuum pump capable of The unit cabinet must have an uninterrupted or unbroken pulling a vac
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MakeAirflowSelections START--UP AirflowSetupforInfinityControlFurnaceofFEFan coil(communicating) ! CAUTION When using an Infinity User Interface, airflow is UNITOPERATIONANDSAFETYHAZARD automatically selected based on equipment size. See User Interface Installation Instructions for available Failure to follow this caution may result in minor personal injury,equipmentdamageorimproperoperation. adjustments. Topreventcompressordamageorpersonalinjury, AirflowSelectionforVariableSpeedFurnacesfor obse
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products.ThegreenLEDwillremain OFFuntilcommunicationsis SystemFunctionsAndSequenceOfOperation established. Once a valid command isreceived, thegreen LEDwill The outdoor unit control system has special functions. The turn ON continuously. If no communication is received within 2 following isan overview ofthe2--stagecontrolfunctions: minutes, the LED will be turned OFF until the next valid CoolingOperation communication. 24ANA7 and 24ANA1 (containing circuit board HK38EA015 or AmberStatusLight new
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In low ambient cooling (below 55_F/12.78_C) on 24ANA7 and CompressorOperationon24ANA1Models 24ANA1 models,thecontrolboard cyclesthefan offand on. The basic scroll design has been modified with the addition of an TimeDelays internalunloading mechanism thatopensaby--passportin thefirst compression pocket, effectively reducing the displacement of the Theunittimedelaysinclude: scroll. The opening and closing of the by--pass port is controlled S Five minute time delay to start cooling or heating oper
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Table4–ModelPlugInformation CheckCharge PINRESISTANCE All24ANAunitsmustbechargedinhighstageonly. MODEL MODEL PLUG (K---ohms) NUMBER NUMBER Factory charge amount and desired subcooling are shown on unit Pins 1---4 Pins 2---3 rating plate. Charging method is shown on information plateinside 24ANA724 HK70EZ001 5.1 11 unit. To properly check or adjust charge, conditions must be 24ANA736 HK70EZ003 5.1 24 favorable for subcooling charging. Favorable conditions exist 24ANA748 HK70EZ005 5.1 39 when the
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The control is shipped with the brownout active. The change in 24ANA7ModelsOnly,CompressorStartDetection status is remembered until toggled to a new status. A power In low--stage, if the specified start voltage at VR terminal is not down/power up sequence will not reset the status. It may be achieved, the start relay is de--energized after 1 second and the necessary to do the toggle twice to cycle to the desired state of the controlwillflash theappropriatefaultcode. defeat. In high--stage, if th
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Table5–2---StageCompressor (Winding Resistance at 70_F ± 20_ / 21.11_C ± 11.11_C) Winding 24ANA724 24ANA736 24ANA748 24ANA760 Start (S---C) 2.74 1.98 1.55 0.74 Run(R---C) 0.80 0.75 0.48 0.36 Winding 24ANA124 24ANA136 24ANA148 24ANA160 Start (S---C) 1.40 1.29 1.52 0.60 Run (R---C) 1.32 0.89 0.64 0.49 MAJORCOMPONENTS THERMISTOR CURVE 2--StageControl 90 The2--stagecontrolboard controlsthefollowing functions: 80 -- Low-- and high--stagecompressorcontactoroperation 70 -- Outdoorfan motoroperation 60
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OATThermistormustbe lockedin OCTThermistormustbe place withsphericalnib end facing to- securedtightonthe liquid wards the frontofthe controlbox tube. Fig.8 -- OutdoorAirThermistor(OAT)Attachment Fig.9 -- OutdoorCoilThermistor(OCT)Attachment FINALCHECKS CAREANDMAINTENANCE IMPORTANT:Beforeleaving job,besureto do thefollowing: For continuing high performance and to minimize possible equipment failure, periodic maintenance must beperformed on this 1. Ensure that all wiring is routed away from tubing
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between short flash and first long flash is 1.0 second. Time StatusCodes between coderepeating is2.5 secondswith LED OFF. Table 6 shows the status codes flashed by the amber status light. Count the number of short and long flashes to determine the Mostsystem problemscan bediagnosed by readingthestatuscode appropriate flash code. Table 6 gives possible causes and actions asflashed by theamberstatuslighton thecontrolboard. related to each error. The codes are flashed by a series of short and long
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Two-Stage Variable Speed Variable Speed 2-Stage Thermidistat Air Conditioner Fan Coil Furnace Air Conditioner Thermidistat O Y1 Heat Stage 2 O/B W2 W2 Y1 RVS/Heat Stage 2 O/W2/B Heat Stage 1 W/W1 W1 W1 Heat Stage 1 W/W1 REMOVE J2 Cool Stage 1 Y1 / W2 Y1 JUMPER FOR Compressor Low Y1 W2 HEAT STAGING Cool Stage 2 Y/Y2 Y/Y2 Y/Y2 Compressor High Y/Y2 Y2 Y/Y2 Fan G G Fan G G 24VAC Hot Heating Rh R R 24VAC Hot Heating Rh R R 24VAC Hot Cooling Rc REMOVE J1 FOR 24VAC Hot Cooling Rc DEHUMIDIFY Dry Conta
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Communicating AC//HP User Interface Fan Coil D D D C C C B B B A A A Humidifier A03076 Fig.11 -- InfinityFurnaceorFanCoilWiringwithCommunicating2--stageAC PURONR(R--410A)REFRIGERANTQUICKREFERENCEGUIDE SPuron refrigerantoperatesat50--70 percenthigherpressuresthan R--22.Besurethatservicing equipmentand replacementcomponents aredesignedtooperatewithPuronrefrigerant SPuronrefrigerantcylindersarerosecolored. SRecoverycylinderservicepressureratingmustbe400psig,DOT4BA400orDOTBW400. SPuronrefrigerantsys
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Copyright2009 CarrierCorp.S 7310 W. MorrisSt.S Indianapolis, IN 46231 Printed inU.S.A. EditionDate: 07/09 CatalogNo:24ANA---6SI Manufacturer reserves therighttochange,atanytime,specifications anddesigns withoutnoticeandwithoutobligations. Replaces:24ANA---5SI 16 24ANA
