Applicat ion Guidelineand Service ManualRESIDENTIAL AIR CONDITIONERS AND HEAT PUMP SUSING R--22 AND PURONR REFRIGERANTTABLE OF CONTENTSPAGEUNIT IDENTI
10LabelingThe wiring schematic, sub--cooling charging tables withinstructions, and warning labels. Refer to Fig. 5 for label location.Fig. 5 – Figure
11ELECTRICALELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or death.Exercise extreme caution when working on any
12CapacitorELECTRICAL SHOCK HAZARDFailure to follow this warning could result in personalinjury or equipment damage.Capacitors can store electrical en
13Crankcase HeaterCrankcase heater is a device for keeping compressor oil warm. Bykeeping oil warm, refrigerant does not migrate to and condense incom
14High--Pressure Switch (AC &HP)The high--pressure switch is located in liquid line and protectsagainst excessive condenser coil pressure. It open
15Table 3—TechAssistt Diagnostics--at-- a --GlanceLEDDescription ON OFFY Thermostat cooling call Yes No... ... ...HPS High Pressure Swit
16FEEDER TUBEDEFROSTTHERMOSTATSTUB TUBEA97517Fig. 9 – Defrost Thermostat LocationDefrost ThermostatsDefrost thermostat signals heat pump that conditio
17Troubleshooting(HK32EA001)If outdoor unit will notrun:1. Does the Y input has 24 volts from thermostat? If not,check thermostat or wire. If yes proc
1814. Remove jumper between DFT and R terminals. Reconnectdefrost thermostat leads. Failure to remove jumper causesunit to switch to defrost every 30,
19Deluxe Defrost Speedup (HK32EA003CONT.)To initiate a force defrost, speedup pins (J1) must be shorted with aflat head screwdriver for 5 seconds and
2TABLE OF CONTENTS (CONTINUED)CARE AND MAINTENANCE 58 -- 59...PURON QUICK REFERENCE GUIDE 59...PRESSURE VS. TEMPERATURE
20COPELAND SCROLLCOMPRESSORScroll Gas FlowCompression in the scroll iscreated by the interaction ofan orbiting spiral and a stationary spiral. Gas ent
21Noisy CompressorNoise may be caused by a variety of internal and external factors.Careful attention to the “type” of noise may help identify thesour
22POWER OFF!OHMMETER0-10Ω SCALE5.2Ω0.6Ω5.8ΩDEDUCTION:(EXAMPLE) TO DETERMINE INTERNAL CONNECTIONS OF SINGLE- PHASE MOTORS (C,S,R) EXCEPT SHADED-POLE???
23GroundCircuitTo determine if a wire has broken or come in direct contact withshell, causing a direct short to ground, follow these steps:1. Allow cr
24Table 5 —Oil ChargingREFRIGERANT COMPRESSOR MODEL RECHARGE (FL OZ) OIL TYPECOPELANDPURON ZP16---26 38 3MA POE (32 cSt)PURON ZP32---41 42 3MA POE (32
25Service Valves and PumpdownPERSONAL INJURY AND UNIT DAMAGEHAZARDFailure to follow this warning could result in personalinjury or equipment damage.Ne
26Heating Piston (AccuRaterr) -- Heat Pumps OnlyIn this product line, AccuRater pistons are used to meter refrigerantfor heat pump heating mode only.
27Reversing ValveIn heat pumps, changeover between heating and cooling modes isaccomplished with a valve that reverses flow of refrigerant insystem. T
28Liquid Line Filter DrierFilter driers are specifically designed for R--22 or Puronrrefrigerant. Only operate with the appropriate drier using factor
29AccumulatorThe accumulator is specifically designed to operate with Puronror R22 respectfully; use only factory-- authorized components.Under some l
3SAFETY CONSIDERATIONSInstallation, service, and repair of these units should be attemptedonly by trained service technicians familiar with standard s
30Thermostatic Expansion Valve (TXV)All fan coils and furnace coils will have a factory installedthermostatic expansion valve (TXV). The TXV will be a
31Replacing TXV on an Indoor Coil(pre-- 2006)1. Pump system down to 2 psig and recover refrigerant.2. Remove coil access panel and fitting panel from
32REFRIGERATION SYSTEM REPAIRLeak DetectionNew installations should be checked for leaks prior to completecharging. If a system has lost all or most o
33Compressor Removal and ReplacementOnce it is determined that compressor has failed and the reasonestablished, compressor must be replaced.PERSONAL I
34EvacuationProper evacuation of the system will remove non --condensiblesand assure a tight, dry system before charging. The 2 methods usedto evacuat
35⎯ Check refrigerant pressure at vapor service valve andrefrigerant temperature at outlet of evaporator.⎯ Use suction line geometry (diameter and equ
36Pseudo Evaporator SuperheatInstructionsThe Pseudo Evaporator Superheat calculates the superheat at theoutlet of the evaporator with known and availa
37Table 7—Puron System Suction Pressure DropNominalSize(Btuh)Suction LineOD(in.)PressureDrop(psi/100 ft)SuctionVelocityfpmPuron Suction Line Pressure
38Table 8—R--22 System Suction Pressure DropNominalSize(Btuh)LineOD(in.)PressureDrop(psi/100 ft)SuctionVelocityFpmR---22 Suction Line Pressure Drop (p
39Table 9—Puronr Refrigerant Pressure Temperatur e ChartPSIGPSIG°FPSIG°FPSIG°FPSIG°FPSIG°FPSIG°F12 --38.2 118 39.9 224 76.9 330 102.9 436 123.3 542 14
4ACCESSORIESTable 1—Required Field--Installed Accessories for Air ConditionersAccessoryREQUIRED FOR LOW---AMBIENTCOOLING APPLICATIONS(Below 55°F / 12.
40Table 10—R--22 Refrigerant Pressure Temperature Relationshippsig°Fpsig°Fpsig°Fpsig°Fpsig°Fpsig°Fpsig°F7 --25.9 71 41.7 135 76.2 199 101.1 263 120.9
41Table 11—Puro n Subcooling Chart2 4 6 8 10 12 14 16 18 20200 70 68 66 64 62 60 58 56 54 52 50210 73 71 69 67 65 63 61 59 57 55 53220 76 74 72 70 68
42Table 12—Puron Superheat Chart2 4 6 8 10 12 14 16 18 20 22 24 26 28 3080 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 5182 22 24 26 28 30 32 34 36 3
43Table 13—R --22 Subcooling Chart2 4 6 8 10 12 14 16 18 20 22 24 26120 70 68666462605856545250484644125 72 70686664626058565452504846130 74 727068666
44Table 14—R--22 Superheat Chart2 4 6 8 10 12 14 16 18 20 22 24 26 28 3050 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 5651 27 29 31 33 35 37 39 41 4
45TWO--STAGE(286ANA, 288ANA, 180ANA, 187ANA)Application GuidelinesBryant designed and tested the two--stage air conditioner and heatpump products with
46Make Airflow Selections for 187ANA/286ANAUsing Non-- Communicating (Non--Evolution)ThermostatsAirflow Selection for 58CVA/58MVB FurnacesThe 58CVA/58
47QuietShiftQuiet Shift is a field--selectable defrost mode which may eliminateoccasional noise that could be heard at the start of the defrost cyclea
48Table 16—Required Liquid-- Line Temperature (°F)LIQUID PRESSUREAT SERVICE VAL VE(PSIG)REQUIRED SUBCOOLING TEMPERA TURE (°F)8 10 12 14 16 18251 76 74
49System Functions and Sequence of OperationThe outdoor unit control system has special functions. Thefollowing is an overview of the two--stage contr
5ACCESSORY DESCRIPTIONSRefer to Table 1 for an Accessory Usage Guide for AirConditioners and Table 2 for Heat Pumps. Refer to the appropriatesection b
50Fan MotorFan motor rotates the fan blade that either draws or blows airthrough outdoor coil to exchange heat between refrigerant and air.Motors are
51ECM Fan MotorTroubleshootingIf the outdoor fan motor fails to start and run:S Check the high--voltage supply. The unit need not berunning to check h
52Control BoxContactor And CapacitorRemoval of the information plate exposes the control components.Both air conditioner and heat pump control boxes w
53UTILITY RELAY *UTILITY SIGNALOPEN RELAY* SUPPLIED BY UTILITY PROVIDERMODEL PLUGLLSLiquid Line SolenoidMODEL PLUGA06525/.A06526Fig. 36 – 2-- Stage C
54Compressor VoltageSensingThe control board input terminals labeled VS, VR and L2 on286ANA/187ANA models and VS and L2 on 288ANA/180ANAmodels (see Fi
55Thermistor SensorComparisonThe control continuously monitors and compares the outdoor airtemperature sensor and outdoor coil temperature sensor to e
56Table 19—TROUBLESHOOTINGOPERATION FAUL TAMBERLEDFLASHCODEPOSSIBLE CAUSE AND ACTIONStandby – no call for unit operation NoneOn solid,no flashNormal o
57RVS/Heat Stage 2 O/B W2Heat Stage 1 W/W1Compressor Low Y1Compressor High Y/Y2Fan G24VAC Hot Heating Rh24VAC Hot Cooling RcDry Contact 1 D1Dry Contac
58CARE AND MAINTENANCETo assure high performance and minimize possible equipmentmalfunction, it is essential that maintenance be performedperiodically
59Final Check-- OutAfter the unit has been operating, the following items should bechecked.1. Check that unit operational noise is not excessive due t
6LOW--AMBIENT COOLING GUIDELINEThe minimum operating temperature for these units in coolingmode is 55_F/12.7_C outdoor ambient without additionalacces
60Table 20—Pressure vs. Temperature Chart -- Puronr Refrigerant (R--410a)PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F12 –37.7 114 37.8 216 74.3 318
61Table 21—Required Liquid-- Line TemperatureLIQUID PRESSUREAT SERVICE VAL VE(PSIG)REQUIRED SUBCOOLING TEMPERA TURE (°F)8 10 12 14 16 18251 76 74 72 7
62NO COOLING ORINSUFFICIENTCOOLINGCOMPRESSORWILL NOT RUNCONTACTOROPENPOWER SUPPLYDEFECTIVELOW-VOLTAGETRANSFORMEROPENTHERMOSTATOPEN CONTROLCIRCUITLOSS
63NO HEATING ORINSUFFICIENTHEATINGCOMPRESSORWILL NOT RUNCONTACTOPENDEFECTIVE LOW-VOLTAGETRANSFORMERREMOTECONTROLCENTERDEFECTIVECONTACTORCOIL OPEN ORSH
64NO COOLING ORINSUFFICIENTCOOLINGCOMPRESSORWILL NOT RUNCONTACTOROPENPOWER SUPPLYDEFECTIVELOW-VOLTAGETRANSFORMEROPENTHERMOSTATOPEN CONTROLCIRCUITLOSS
65INDEX OF TABLESDESCRIPTION TABLE #Required Field--Installed Accessories for Air Conditioners 1...
66Manufacturer reserves the right to discontinue, or c hange at any time, specifications or designs without notice and without incurring obligations.E
7BAFFLE-1 MATL: 20 GA STEELA06230Deluxe U nits (in.)UNITSIZEAA UNIT HEIGHT A B C D E F G HMedium 3329---1/2 23--- 13/16 11---7/816 81.9 16---3/8 80.3
8LONG LINE GUIDELINERefer to Long Line Guideline for Puronr Refrigerant AirConditioners and Heat Pumps or Long Line Guideline for R-- 2 2Air Condition
9Access Compressor Or Other Internal CabinetComponentsNOTE: It is not necessary to remove the top cover to gain access.Removing the top cover may caus
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