background image

39

ComPac 9/04-12

*1 = Location May Vary

2 = 460V, 3ø Only

3 = ComPac

®

 I A/C Only

  4 = ComPac

®

 II A/C Only

5 = Optional

P

ARTS

 L

IST

5.1 P

ARTS

 L

IST

Volts

Qty

Fan

Contactor

Relay

240

n/a

n/a

n/a

n/a

240

n/a

n/a

n/a

50205

240

n/a

n/a

50020

n/a

240

1

n/a

50020

n/a

240

1

n/a

50020

n/a

240

3

n/a

50040

n/a

240

2

n/a

50030

n/a

240

3

n/a

50040

n/a

240

2

n/a

50030

n/a

240

3

n/a

50040

n/a

240

3

n/a

50040

n/a

460

n/a

50190

n/a

n/a

460

3

50190

50040

n/a

460

3

50190

50040

n/a

460

3

50190

50040

n/a

460

3

50190

50040

n/a

9

10

70445
70411

50190
50190

70441

0

n/a

n/a

n/a
n/a
n/a

n/a

70006

n/a

70006

70413
70412
70444
70414

n/a
n/a
n/a

Part Number

Dual Limit Control

70006
70006
70006
70006
70006

6

70006

15

12
15

70446
70410

50190
50190

9

12

70442

70006
70006

70443

n/a

Heat/Blower

5

70006
70006

n/a
n/a

n/a
n/a
n/a

HEATING ELEMENT AND RELAY CHART

Relays

Heater

n/a

3.6

n/a

Heat Element

Part Number

70397
70136

kW

2.2

Unit

4

0

6
8

70440

Volts

Phase

240

1

240

3

460

3

70299

DISCONNECTS

Part Number

70178
70183

ComPac

®

 I and II (AVPxxAC)

20

24

30

36

42

48

60

72

10046

10205

10208

10233

10052

10202

10108

P/10005

n/a

10104

10109

10079

n/a

n/a

n/a

n/a

n/a

10206

10209

10226

10093

10203

10140

10178

n/a

10116

10118

10092

n/a

n/a

n/a

n/a

n/a

10207

10211

10227

10094

10204

10120

10179

n/a

10114

10117

10091

n/a

n/a

n/a

n/a

50265

50265

50280

50315

50322

50294

50159

50159

n/a

50280

50321

50310

n/a

n/a

n/a

n/a

50010

50010

50010

50020

50020

50020

50030

50030

n/a

50040

50040

50040

50040

50040

50040

50040

4

60208

60208

60375

60375

60350

60345

60345

60007 (2)

40031

40031

40096

40096

40098

40098

40098

40051

40054

40054

40054

40054

40051

40051

40051

40051

6

50350

50350

50350

50350

50240

50240

50240

50360

7

30110

30110

30115

30115

30135

30135

30135

30149

8

60207

60207

60385

60385

60360

60340

60061

60027

9

40045

40045

40055

40055

40099

40099

40046

40046

10

50350

50350

50350

50350

50360

50360

50360

50360

11

30060

30060

30050

30050

30090

30090

30012

30025

12

30065

30065

30055

30055

30092

30092

30013

30024

80868

80869

80865

80866

80903

80660

n/a

n/a

3

3

2

2

2

4

n/a

n/a

13b

80042

20294

20295

20295

80042

80042

n/a

n/a

20078

20239

(.088)

(.094)

13d

n/a

n/a

n/a

n/a

n/a

n/a

20033

20239

14

SEE HEATING ELEMENT AND RELAY CHART BELOW

15

SEE HEATING ELEMENT AND RELAY CHART BELOW

16

70005

70005

70005

70005

70005

70005

70005

70005

17

SEE HEATING ELEMENT AND RELAY CHART BELOW

18

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

19

50141

50141

50141

50141

50141

50141

50141

50141

20

n/a

50146

50146

50146

50147

50147

P/50007 P/50008

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

70063

70063

25

70071

70071

70071

70071

70071

70071

70071

70071

26

70281

70281

70281

70281

70281

70281

70281

70281

27

80786

80786

80786

80786

80786

80786

80786

80786

28

SEE DISCONNECTS CHART BELOW

29

n/a

n/a

n/a

n/a

n/a

n/a

n/a

n/a

30

70080

70080

70080

70080

70080

70080

70279

70080

31

70050

70050

70050

70050

70050

70050

70050

70050

32

80420

80420

80420

80420

80426

80426

80426

n/a

33

80427

80427

80427

80427

80428

80428

80428

80428

34

40101

40101

40101

40101

40101

40101

40101

40101

35

80271

80271

80271

80271

80271

80271

80271

80271

36

70230

70230

70230

70230

70230

70230

70230

70230

37

50164

50164

50164

50164

50164

50164

50164

50164

38

70229

70229

70229

70229

70229

70229

70229

70229

39

SEE HEATING ELEMENT AND RELAY CHART BELOW

40

SEE HEATING ELEMENT AND RELAY CHART BELOW

41

70370

70370

70370

70370

70370

70370

70389

70425

42

80137

80137

80138

80138

80162

80162

80162

81257 (2)

43

S/03998 S/03998 S/03998 S/03998 S/03998 S/03998 S/03998 S/03998

44

n/a

n/a

n/a

n/a

P/50182 P/50182 P/50182 P/50182

*S/03998  is the field replacement for the factory installed fan cycle control (20175). Includes swivel tee.

 Outdoor Fan Motor (OFM) Extrem e Duty

 Fuse Link (FL)

 Transformer (ACD Only)

13c  Orifice - Cooling

 Control Transformer, 40 va (Tran)

13a

 Capillary Tube

Quantity Needed

 Distributor - Indoor (for Cap Tubes)

2

 Compressor Capacitor, ACA
 Compressor Capacitor, ACA, (Scroll)

 Condenser Coil

3

 Lockout Relay (LOR)

5

n/a

ACC (3 Ph, 230 V)

ACD (3 Ph, 460 V, Optional Scroll)

 Motor Mounting Bracket, OFM
 Motor Mounting Bracket, IBM

 Outdoor Fan Motor (OFM) Standard

 Fan Blade

 Indoor Motor Capacitor (IBMC)

 Evaporator Coil

 Dual Limit Control

 Blower Time Delay Relay (BTR)

 Disconnect

 Limit Control, Automatic Reset
 Heater Contactor/Relay

 Outdoor Fan Relay

 High Pressure Switch (HPS)
 Low Pressure Switch (LPS)

 Fan Cycle Control Relay

Item

Description

1

 Compressor Contactor (CC)

 Compressor (Comp)

ACC (3 Ph, 230 V, Optional Scroll)
ACD (3 Ph, 460 V)

ACA (1 Ph, 230 V)

 Heating Element (EH)

 Indoor Blower - Left Hand
 Indoor Blower - Right Hand

 Indoor Motor (IBM)

ACA (1 Phase)
ACC, ACD (3 Phase)

 Distributor - Indoor (Chatleff)

 Outdoor Motor Capacitor (OFMC)

ACA (1 Ph, 230 V, Optional Scroll)

 Heat Blower Relay

 Economizer Package Actuator (EPA)

 H205A Enthalpy Control (EC)

 Clip for Low Vibration
 Adjustable Time Delay Relay (TD)

n/a

n/a

 Low Ambient Fan Cycle Control*

 Timed Low Pressure By-pass (TLPBP)
 Control Board (Alt. for Items 21 - 25)

 2" Pleated Filter

 Filter Drier

n/a

 Mixed Air Relay (MAR)
 Mixed Air Sensor (MAS)

 Terminal Board (TB)

 Terminal Block

 Terminal Lug

n/a

n/a

Summary of Contents for Marvair ComPac I AVP20

Page 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...

Page 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...

Page 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...

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

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

Page 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...

Page 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...

Page 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...

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

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

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

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

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

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 21: ...lledbytheH205Aenthalpycontroloroptionaldrybulbsensor H205AEconomizerChangeoverControl TheH205Aenthalpycontrollerrespondstothetotalheatcontentoftheoutdoorairtoprovide changeovertooutsideairforfreecooli...

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

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

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

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

Page 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...

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

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

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

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

Page 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...

Page 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...

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

Page 34: ...Allowtheunitstorunfor2to3minutesthencheckthetemperaturedifferentialbetween thereturnairandthesupplyairwithdigitalthermometer Thetemperaturedifferential shouldbebetween12and20degreesdependingonambientt...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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