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18

ComPac 9/04-12

5

TRANSFORMER

Figure 3d. Typical Electrical Schematic - ComPac

®

II A/C, Models AVP20-60

with Electronic Control Board

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Содержание Marvair ComPac I AVP20

Страница 1: ...44 Maintenance 47 Warranty 48 ComPac I and ComPac II Air Conditioner Product Manual Vertical Wall Mount Air Conditioners with Front Control Box Panel Models AVP20 24 30 36 42 48 60 72 P 81024 9 04 12...

Страница 2: ...leshooting information in Chapter 4 If you are still unable to correct the problem contact the Factory at 1 800 841 7854 for additional assistance Please read the following Important Safety Precaution...

Страница 3: ...ionRequirements 23 2 3 InstallationMaterials 24 2 4 PortingandDuctWork 26 2 5 FreshAirHoodInstallation 27 2 6 BracketInstallation 27 2 7 MountingtheUnit 27 2 8 ElectricalConnections 28 Start Up 3 1 Ch...

Страница 4: ...actors 17 3d TypicalElectricalSchematic ComPac IIA CModels20 60 withElectronicControlBoard 18 3e TypicalElectricalSchematic ComPac IA CModel72 19 3f TypicalElectricalSchematic ComPac IIA CModel72 20 F...

Страница 5: ...xternalpanels Allunitshaveinternaldisconnects optionalon460V Dependinguponstateandlocalcode requirements thisfeaturemayeliminatetheneedforanexternalbreakerordisconnect TheComPac IA Chasa0 15 manualout...

Страница 6: ...42 1650 1585 1520 1450 1360 48 1900 1830 1760 1700 1620 60 1900 1830 1760 1700 1620 72 2100 1950 1800 1730 1660 20 24 30 36 42 48 60 72 MODEL LBS KG LBS KG LBS KG LBS KG LBS KG LBS KG COMPAC I A C 274...

Страница 7: ...152 mm 24 0 610 mm 42 0 1067mm 60 0 1524mm 78 0 1981mm FRESH AIR HOOD 1 5 38 mm K O S 2 0 51 mm MOUNTING HOLES CTR TO CTR HEATER ACCESS COVER DISCONNECT ACCESS COVER FRONT VIEW R H SIDE VIEW BACK VIEW...

Страница 8: ...8 ComPac 9 04 12 Figure 1c ComPac I A C ComPac II A C Dimensions Models AVP72 in inches mm SLOTS IN COMPAC II ONLY SLOTS IN COMPAC II ONLY...

Страница 9: ...EconomizerOperation ComPac IIA COnly The economizer is a regulated damper system with controls The damper regulates the circulationofoutsideairintotheenclosure whentheoutdoorairconditionsaresuitable...

Страница 10: ...uetoalossofacooling Y callorthefirstfault theunit re startwillbedelayed3minutesfromthetimethecontactorisde energized Note There isnodelayonbreakifthelockoutconditionisreset Delay on Make Oninitialpowe...

Страница 11: ...00 PSIG AVP60 setting is 450 PSIG This protects the unit if airflow through the condenserisblockedoriftheoutdoorfanmotorfails Althoughthecontactsofthehighpressureswitchclosewhentherefrigerantpressuref...

Страница 12: ...o approximately 300 PSIG the system must be manually reset once the lockout relay is activated Amanualresetisnecessarytopreventharmfulshort cycling Toresetswitch turn primarypoweroff thenbackonorturnt...

Страница 13: ...fstainlesssteel Hot Gas Bypass ComPac I A C Only Usedinspecialtyapplications i e MagneticResonanceImaging MRI buildings toprevent magneticvoltagedisturbancecausedbycompressorcycling Twohotgasbypassopt...

Страница 14: ...rsareavailablefromMarvair Aflagtypedetectsareduction ofairflowonthedischargesideofthefilter Whenareductioninairflowisdetected asignal issenttoasetofdrycontacts Formorereliable preciseindicationofadirt...

Страница 15: ...ED MOTORS SEE MOTOR NAMEPLATE FOR WIRE COLOR 3 TRANSFORMER IS FACTORY WIRED FOR 230 VOLT OPERATION FOR LOWER VOLTAGES INTERCHANGE ORANGE AND RED LEADS INSULATE UNUSED LEADS 4 OPTIONAL CRANKCASE HEATER...

Страница 16: ...16 ComPac 9 04 12 Figure 3b Typical Electrical Schematic ComPac I A C Models AVP20 60 with Electronic Control Board 5 6 TRANSFORMER...

Страница 17: ...RMER IS FACTORY WIRED FOR 230 VOLT OPERATION FOR LOWER VOLTAGES INTERCHANGE ORANGE AND RED LEADS INSULATE UNUSED LEADS 4 OPTIONAL FIELD INSTALLED 270 OHM MINIMUM POSITION POTENTIOMETER 5 CRANKCASE HEA...

Страница 18: ...18 ComPac 9 04 12 5 TRANSFORMER Figure 3d Typical Electrical Schematic ComPac II A C Models AVP20 60 with Electronic Control Board...

Страница 19: ...0 HZ 1 PH POWER SUPPLY SEE DATA PLATE FOR AMPACITY FUSE SIZE DISCONNECT SHOWN 2 SPEED TAP FOR MULTISPEED MOTORS SEE MOTOR NAMEPLATE FOR WIRE COLOR 3 TRANSFORMER IS FACTORY WIRED FOR 230 VOLT OPERATION...

Страница 20: ...OR AMPACITY FUSE SIZE DISCONNECT SHOWN 2 SPEED TAP FOR MULTISPEED MOTORS SEE MOTOR NAMEPLATE FOR WIRE COLOR 3 TRANSFORMER IS FACTORY WIRED FOR 230 VOLT OPERATION FOR LOWER VOLTAGES INTERCHANGE ORANGE...

Страница 21: ...lledbytheH205Aenthalpycontroloroptionaldrybulbsensor H205AEconomizerChangeoverControl TheH205Aenthalpycontrollerrespondstothetotalheatcontentoftheoutdoorairtoprovide changeovertooutsideairforfreecooli...

Страница 22: ...optional Thecontrollermodulatesthepositionoftheoutsideairdamper inresponsetoinputfromthe enthalpyandmixedairsensors Thecontrollerisdesignedtomaintainthesupplyairtemperature between50 to56 Fbymixingwar...

Страница 23: ...3 Completeandmailthewarrantyregistrationcard Youmustconsiderallofthefollowingwhenchoosingtheinstallationsite 1 Noise Installtheunitsothattheleastamountofnoisewillbetransmittedto inhabited spaces 2 Co...

Страница 24: ...Supply Thepowersupplymusthavetheappropriatevoltage phase andampacityforthemodel selected Voltagemustbemaintainedaboveminimumspecifiedvalueslistedbelow Refer tothedatastickerontheunitforampacityrequire...

Страница 25: ...itorforAVP20 36 FieldInstalled Not recommendedforscrollcompressors AdditionalItemsNeeded Additionalhardwareandmiscellaneoussupplies notfurnishedbyMarvair areneededfor installation Forexample thelistbe...

Страница 26: ...ns using duct work should be designed and installed in accordance with all applicable safety codes and standards Marvair strongly recommends referring to the currenteditionoftheNationalFireProtectionA...

Страница 27: ...theshelterwalltomatchthisopening Allowsufficient clearance torun3 4 conduitthroughtheholeandtotheunit 2 Usinganappropriateandsafeliftingdevice settheunitonthebottomsupportbracket mountedonthewall Youm...

Страница 28: ...city for the selected model 1 SizetheincomingpowersupplylinesaccordingtoCoderequirements Runthepower conductorsthroughtheknockoutsonthewallsideoftheunit ortothoseadjacentto theelectricalcontrolbox Use...

Страница 29: ...chofthesetpointscanbequicklyandeasily changedinthefieldbytheinstaller ItcanbeusedwithMarvair sComPac Ior IIunique verticalpackagedwallmountairconditionersorMarvair senvironmentalcontrolunits See Comms...

Страница 30: ...ftheLL357D2 RemoteSignalling Terminals5 7ontheComPac A Cterminalboardaredrycontacts whichcanbeusedforremotesignallingintheeventofa ccutoffonloworhighpressurelimit Continuousfanoperation Forcontinuousi...

Страница 31: ...T WITH HUMIDITY CONTROLLER G R W Y 2 4 6 8 10 1 3 5 7 9 4 WIRE WALL THERMOSTAT Four 4 Conductor Color Coded 18 Gauge Thermostat Cable Field Supplied COMPAC II A C TERMINAL BLOCK NOTE Terminals 5 7 are...

Страница 32: ...CONTACTS DRY NO C SMOKE HP LP LOCKOUT CONTACTS DRY NO NC C INPUT FROM TERMINAL BOARD 3 2 1 THERMISTOR CONTACTS 4 FACTORY INSTALLED 1 24 VAC connections only 2 For immediate shutdown of air conditione...

Страница 33: ...mponentcooleraerosolmaybe sprayeddirectlyintotheenthalpysensortosimulatelowenthalpyconditions causingthe economizerdampertoopen Alternately when outdoor conditions are lower than the set point a sourc...

Страница 34: ...Allowtheunitstorunfor2to3minutesthencheckthetemperaturedifferentialbetween thereturnairandthesupplyairwithdigitalthermometer Thetemperaturedifferential shouldbebetween12and20degreesdependingonambientt...

Страница 35: ...gparts etc Begin deeper analysis only after making this initial inspection The troubleshooting information in this manual is basic The troubleshooting section contains problem solution charts for gene...

Страница 36: ...r shorts 4 Note voltage range limitations specific to the compressor troubleshooting section 1 Loss or restriction of airflow 2 Restriction in refrigerant circuit 3 Refrigerant overcharge following fi...

Страница 37: ...oltage condition must be corrected 2 Running Amperage Connect a clip on type ammeter to the common lead to the compressor Turn on the supply voltage and energize the unit The compressor will initially...

Страница 38: ...ultconditionwillopenthecontactorandshutdowntheunit The contactorontheunitthathasthefaultconditionmustbeclosedbeforethesecondfault conditioncanberecognizedbythecontrolboard Thecontactorontheunitwiththe...

Страница 39: ...008 21 50419 50419 50419 50419 50419 50419 50419 50419 22 50214 50214 50214 50214 50214 50214 50214 50214 23 01257 01257 01257 01257 01257 01257 01257 01257 24 70063 70063 70063 70063 70063 70063 7006...

Страница 40: ...26 6 2 26 40 17 19 28 27 3 6 AVP20 36 Control Box with Mechanical Relays Contactors AVP20 24 Control Box with Electronic Control Board AVP30 36 Control Box with Electronic Control Board 31 30 33 42 4...

Страница 41: ...rol Box with Electronic Control Board 38 12 9 42 8 33 13 11 4 31 30 34 1 36 20 7 5 32 18 14 16 OFF ON ON OFF 6 37 22 24 27 28 19 3 21 17 2 10 2 40 17 37 19 28 27 3 26 6 2 40 26 37 17 19 27 28 3 6 AVP2...

Страница 42: ...d the cabinet air reliefs for dirt or obstructions Remove foreign objects such as leaves paper etc Ifthecondensercoilisdirty itmaybewashedoffwithacommercialsolventintended for this purpose TURN OFF PO...

Страница 43: ...iscoveredunderthiswarranty Marvairwillhonoritswarrantyandfurnishtherequired replacement part All costs for shipment and risk of loss during shipment of the product to Marvair and back to the owner sha...

Страница 44: ...thout charge EXW Cordele Georgia the required replacement Any transportation related service labor diagnosis calls filter driers and refrigerant are not included The owner of the product may ship the...

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