Application Guideline and Service Manual

1 Application Guidelineand Service ManualResidential Air Conditioners and Heat PumpsUsing R --- 22 and P uronrRefrigerantTABLE OF CONTENTSPAGEUNIT AND DESCRIPTIONS4 -- GUIDELINE6 -- LINE ASSEMBLY & COMPONENTS8 -- -- CONTROL BOARD15 -- FUNCTION ANDSEQUENCE OF SCROLL Systems on Roofs With Synthetic Valves and Pump Line Filter Line Filter Expansion Valve (TXV) PIPING SYSTEM Removal and Clean--Up After WITH SUPERHEAT34 -- 25 HNA / 24 ANA44 -- Airflow Selections For 24 ANA7/25 HNA6/24 ANA124,36,48A0032/24 ANA160A0033/25 HNA924,36,48A0032,25 HNA960A0033 With Serial Number 3809 And LaterUsing Non--communicating (Non--infinity) Selection for FV4 Fan Coils for 24 ANA1, 24 ANA7,25 HNA6, 25 HNA9 with serial number 3809 and later UsingNon--Communicating (Non--Infinity) FUNCTION ANDSEQUENCE OF 25 HNB / Selections For 24 ANB7 / 25 HNB6 / 24 ANB1 /25 HNB9 Using Non--Communicating (Non--infinity) Selection For FV4 Fan Coils For 24 ANB1, 24 ANB7,25 HNB6, 25 HNB9 Using Non--Communicating (non--Infinity) FUNCTION ANDSEQUENCE OF OF CONTENTS (CONTINUED)TWO STAGE NON--COMMUNICATING24 ACB7 / Selections (ECM Furnaces) Selection for Variable Speed Furnaces(non--communicating) Selection for FV4C Fan Coils(non--communicating) FUNCTION ANDSEQUENCE OF STAGE COMMUNICATING24 APA7 Selections for ECM Furnaces (non--comm)

2 Selection for VS Furnaces (non--comm) Selection for FV4C Fan Coils Using Non--Comm(Non--Infinity) FUNCTION AND SEQUENCE OF AND QUICK REFERENCE TROUBLESHOOTING TROUBLESHOOTING CHART -- HEATING TROUBLESHOOTING CHART -- COOLING OF IDENTIFICATIONT roubleshooting Charts for Air Conditioners and Heat Pumps areprovided in the appendix at back of this Manual . They enable theservice technician to use a systematic approach to locating thecause of a problem and correcting system section explains how to obtain the model and serial numberfrom unit rating plate. These numbers are needed to Service andrepair the Puronrand R--22 air conditioner or heat pump. Modeland serial numbers can be found on unit rating CONDITIONER AND HEAT PUMP MODEL NUMBER NOMENCLATURE1234567891011121314151624 ABA336A0030000 SeriesFamilyTierMajorSeriesSEERC oolingCapacity (Tons)

3 VariationsOpenOpenVoltageMinorSeriesPack agingPartsIdentificationOpen24 = AC25 = HPA=A/CH=HPB=Base/ComfortC=Comfort/Perfo rmanceP=PerformanceN=InfinityA,B = PuronR,S = R223 = 13 SEER5 = 15 SEER6 = 16 SEER8 = 18 SEER1 = 21 SEER7 = 17 SEER18 = 1--1/224 = 230 = 2--1/236 = 342 = 3--1/248 = 460 = 5A=StandardC=CoastalF = Full FeaturedG=DenseGrillL=Louvers0= NotDefined0= NotDefined1 = 575--33 = 208/230--15 = 208/230--36 = 460--37 = 230--1--509 = 400--3--500=InitialSeries0=Domestic1=Imp ort0= NotDefinedSERIAL NUMBER NOMENCLATURE0106 Week of ManufactureYear of Manufacture00001 Serial NumberEManufacturing SiteE = Collierville TNX = Monterey Mexico3 SAFETY CONSIDERATIONSI nstallation, Service , and repair of these units should be attemptedonly by trained Service technicians familiar with standard serviceinstruction and training equipment should be installed inaccordance with acceptedpractices and unit Installation Instructions, and in compliance withall national and local codes.

4 Power should be turned off whenservicing or repairing electrical components. Extreme cautionshould be observed when troubleshooting electrical componentswith power on. Observe all warning notices posted on equipmentand in instructions or OPERATION AND SAFETY HAZARDF ailure to follow this warning could result in personalinjury or equipment (R--410A) systems operate at higher pressures thanstandard R--22 systems. Do not use R--22 Service equipmentor components on Puronrequipment. Ensure serviceequipment is rated for Puronr.!WARNINGR efrigeration systems contain refrigerant under pressure. Extremecaution should be observed when handling refrigerants. Wearsafety glasses and gloves to prevent personal injury.

5 During normalsystem operations, some components are hot and can cause fan blades can cause personal injury. Appropriate safetyconsiderations are posted throughout this Manual where potentiallydangerous techniques are document provides required system information necessary toinstall, Service , repair or maintain the family air conditioners andheat pumps using R22 or Puron to the unit Product Data for rating information, electricaldata, required clearances, additional component part numbers andrelated pre--sale data. Installation Instructions are also available perspecific in this document refers to units produced in 2006 andlater. For products produced prior to this date, please refer toService Manual number 38--10SM for products containing R22refrigerant and Service Manual 38--11SM for products containingPuron GUIDELINER esidential New ConstructionSpecifications for these units in the residential new constructionmarket require the outdoor unit, indoor unit, refrigerant tubing sets,metering device, and filter drier listed in Product Data (PD).

6 DONOT DEVIATE FROM PD. Consult unit Installation Instructionsfor detailed Replacement (Retrofit) -- R22 to PuronSpecifications for these units in the add--on replacement/retrofitmarket require change--out of outdoor unit, metering device, andall capillary tube coils. Change--out of indoor coil is can be no If system is being replaced due to compressor electricalfailure, assume acid is in system. If system is being replacedfor any other reason, use approved acid test kit to determineacid level. If even low levels of acid are detected installfactoryapproved,100percentactivat edaluminasuction--line filter drier in addition to the factory suppliedliquid--line filter drier. Remove the suction line filter drier assoon as possible, with a maximum of 72 Drain oil from low points or traps in suction--line andevaporator if they were not Change out indoor coil or verify existing coil is listed in theProduct Data Unless indoor unit is equipped with a Puronrapprovedmetering device, change out metering device to factorysupplied or field--accessory device specifically designed Replace outdoor unit with Puronroutdoor Install factory--supplied liquid--line filter DAMAGE HAZARDF ailure to follow this caution may result in equipmentdamage or improper install suction--line filter drier in the liquid--line of !

7 7. If suction--line filter drier was installed for system clean up,operate system for 10 hr. Monitor pressure drop across pressure drop exceeds 3 psig, replace suction--line andliquid--line filter driers. Be sure to purge system with drynitrogen and evacuate when replacing filter driers. Continueto monitor pressure drop across suction--line filter 10 hr of runtime, remove suction--line filter drier andreplace liquid--line filter drier. Never leave suction--linefilter drier in system longer than 72 hr (actual time).8. Charge system. (See unit information plate.)SeacoastCoastal units are available in selected models and sizes of AirConditioners and Heat Pumps. These units have protection to helpresist the corrosive coastal environment.

8 Features include:SArmor plate fins and epoxy coated coilsSComplete baked--on paint coverage(both sides of external sheet metal and grilles)SPaint coated screwsCoastal environments are considered to be within 2 miles of theocean. Salt water can be carried as far away as 2 miles from thecoast by means of sea spray, mist or fog. Line--of--sight distancefrom the ocean, prevailing wind direction, relative humidity,wet/dry time, and coil temperatures will determine the severity ofcorrosion potential in the coastal 1 Required Field--Installed Accessories for Air ConditionersACCESSORYREQUIRED FOR LOW---AMBIENTCOOLING applications (Below 55 )REQUIRED FORLONG LINE APPLICA-TIONS*REQUIRED FORSEA COASTAPPLICATIONS(Within 2 km)

9 Ball Bearing Fan MotorYes{}NoNoCompressor Start Assist Capacitor and RelayYes**YesNoCrankcase HeaterYes}Yes}NoEvaporator Freeze ThermostatYes}NoNoH a r d S h u t --- O f f T X VYesYesYesLiquid Line Solenoid ValveNoNoNoMotor Master or Low---ambient Pressure SwitchYes}NoNoSupport FeetRecommendedNoRecommendedWinter Start ControlYes}NoNo* For tubing line sets between 80 and 200 ft. ( and m) and/or 35 ft. ( m) vertical differential, refer to Residential Piping and Longline Guideline .{Additional requirement for Low---Ambient Controller (full modulation feature) MotorMasterrControl.}Infinity 2---stage units come standard with this accessory.** Not required on 2 --- stageTable 2 Required Field--Installed Accessories for Heat PumpsACCESSORYREQUIRED FOR LOW---AMBIENTCOOLING applications (Below 55 F / C)REQUIRED FORLONG LINE APPLICA-TIONS*REQUIRED FORSEA COAST APPLICA-TIONS (Within 2 miles km)AccumulatorStandardStandardStandardBa ll Bearing Fan MotorYes{}NoNoCompressor Start Assist Capacitor and RelayYes **YesNoCrankcase HeaterYes}Yes}NoEvaporator Freeze ThermostatYes}NoNoHard Shutoff TXVYesYesYesIsolation RelayYesNoNoLiquid Line Solenoid ValveNoSee Long---Line ApplicationGuidelineNoMotor Master Control orLow Ambient SwitchYes}NoNoSupport FeetRecommendedNoRecommended* For tubing line sets between 80 and 200 ft.

10 ( and m) and/or 20 ft. ( m) vertical differential, refer to Residential Piping and Longline Guideline .{Additional requirement for Low---Ambient Controller (full modulation feature) MotorMasterrControl.}Infinity 2---stage units come standard with this accessory.** Not required on 2 --- stage5 ACCESSORY DESCRIPTIONSR efer to Table 1 for an Accessory Usage Guide for AirConditioners and Table 2 for Heat Pumps. Refer to the appropriatesection below for a description of each accessory and its Crankcase HeaterAn electric resistance heater which mounts to the base of thecompressor to keep the lubricant warm during off cycles. Improvescompressor lubrication on restart and minimizes the chance ofliquid Guideline :Required in low ambient cooling in long line in all commercial Evaporator Freeze ThermostatAn SPST temperature--actuated switch that stops unit operationwhen evaporator reaches freeze--up Guideline :Required when low ambient kit has been Isolation RelayAn SPDT relay which switches the low--ambient controller out ofthe outdoor fan motor circuit when the heat pump switches toheating Guideline :Required in all heat pumps where low ambient kit hasbeen added4.