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Marvair ComPac AVHDA I&O Manual 03/2019 Rev.3

1.4 

Capacities, Weights and Filter Sizes

Complete electrical and performance specifications and dimensional drawings are in the Product Data 

Sheet.

Note: 

Follow local codes and standards when designing duct runs to deliver the required airflow. 

Minimize noise and excessive pressure drops caused by duct aspect ratio changes, bends, dampers and 

outlet grilles in duct runs.

Basic Model

Cooling BTUH

1

EER

2

Rated Air Flow (CFM)

3

AVHDA90

89,000

10

3,500

1

Cooling rated at 95°F (35°C) outdoor and 80°F DB/67° WB (26.5°C DB/19.5°C WB) return air.   

2

EER=Energy Efficiency Ratio   

3

CFM=Cubic Feet per Minute

Ratings are with no outside air.  Performance will be affected by altitude.

Ratings are at 230 volts for 208/230 volt units (“A” & “C” models) and 460 volts for “D” models. Operation of units at a different volt-

age from that of the rating point will affect performance and air flow.

Table 1.  AVHDA Efficiency and Capacity Ratings at ANSI/AHRI Standard 390

Return Air 

DB/WB

Sensible Cooling Capacity

Outside Air Temperature ºF (ºC)

75 (24)

80 (27)

85 (30)

90 (32)

95 (35)

79/66

BTUH

40,671

40,148

39,613

39,093

38,561

75/61

42,039

40,581

39,164

37,706

36,248

80/63

43,700

42,201

40,662

39,164

37,665

85/65

48,641

46,940

45,279

43,578

41,918

Table 2. Sensible Capacities - Single Compressor

Return Air 

DB/WB

Sensible Cooling Capacity

Outside Air Temperature ºF (ºC)

75 (24)

80 (27)

85 (30)

90 (32)

95 (35)

100 (38) 105 (41) 110 (43) 115 (46) 120 (49) 125 (52)

79/66*

BTUH

73,746

72,487

71,203

69,958

68,689

67,427

66,204

64,956

64,351

63,780

63,209

75/61

77,983

76,678

75,416

74,126

72,843

71,567

70,298

69,071

68,443

67,817

67,192

80/63

87,060

85,763

84,439

83,158

81,884

79,477

76,184

72,802

71,200

69,598

67,996

85/65

98,806

97,367

95,972

94,552

93,174

91,805

90,411

89,060

88,371

87,782

87,194

Table 3. Sensible Capacities - Dual Compressor

Basic Model

Outdoor Temperature

75ºF / 24ºC

80ºF / 26.5ºC

85ºF / 29ºC

90ºF / 32ºC

95ºF / 35ºC

AVHDA90AC

46,980

45,360

43,740

42,120

40,500

Based upon ANSI/AHRI std. 390 return air conditions of 80°F DB/67° WB (26.5°C DB/19.5°C WB) at various outdoor temperatures.

Table 4. Single Compressor Cooling Performance (BTUH) at Various Outdoor Temperatures

Basic Model

Outdoor Temperature

75ºF / 24ºC

80ºF / 26.5ºC

85ºF / 29ºC

90ºF / 32ºC

95ºF / 35ºC

AVHDA90AC

103,240

99,680

96,120

92,560

89,000

Based upon ANSI/AHRI std. 390 return air conditions of 80°F DB/67° WB (26.5°C DB/19.5°C WB) at various outdoor temperatures.

Table 5. Dual Compressor Cooling Performance (BTUH) at Various Outdoor Temperatures

Basic Model

Fan Watts

Fan CFM

EER @ 55 F OAT

Outside Air Temperature ºF (ºC)

50 (10)

55 (13)

60 (16)

65 (18)

70 (21)

AVHDA90AC

730

3500

125

110,128

91,140

72,153

53,165

34,178

Based upon indoor setpoint temperature of 79 (26).

Table 6. Economizer Cooling Performance

MODEL

Description

INCHES

MILLIMETERS PART NO. FILTERS PER UNIT MERV RATING

AVHDA90

Exterior Access Return Air Filter 25" x 16" x 2" 635 x 406 x 51

80137

3

8

Interior Access Return Air Filter 15" x 20" x 2" 381 x 508 x 51

92365

3

8

Table 7. Return Air Filter Sizes

Summary of Contents for Marvair ComPac II AVHDA90

Page 1: ...eatures which may not be included on the unit being installed Refer to the unit data label or Model Identification to determine which features and options this unit is equipped with INSTALLER Affix th...

Page 2: ...T the UNIT UPRIGHT Laying it down on its side may cause oil to leave the compressor and breakage or damage to other components 3 TURN ELECTRICAL POWER OFF AT THE breaker or fuse box BEFORE installing...

Page 3: ...the building adjacent to the thermostat END USER Retain these instructions for future reference Table of Contents Chapter 1 Air Conditioner Description Specifications 1 1 General Description 5 1 2 Mo...

Page 4: ...Figure 4a Thermostat Connection Diagram 19 Figure 4b CommStat 3 Wiring Detail 19 Tables Table 1 AVHDA Efficiency and Capacity Ratings at ANSI AHRI Standard 390 6 Table 2 Sensible Capacities Single Co...

Page 5: ...sible for service beneath external panels All units have internal disconnects Depending upon state and local code requirements this feature may eliminate the need for an external breaker or disconnect...

Page 6: ...5 100 38 105 41 110 43 115 46 120 49 125 52 79 66 BTUH 73 746 72 487 71 203 69 958 68 689 67 427 66 204 64 956 64 351 63 780 63 209 75 61 77 983 76 678 75 416 74 126 72 843 71 567 70 298 69 071 68 443...

Page 7: ...ired for maximum cooling utilizing both compressors If 2 stage compressor operation is desired the factory installed jumper between terminals 1 and 2 of the low voltage terminal strip must be removed...

Page 8: ...LED Indicator Lights COLOR TYPE STATUS DESCRIPTION Green Power Contstant On 24 VAC power has been applied Red Status Contstant On Normal operation Red Status 1 Blink High pressure switch has opened t...

Page 9: ...e coated Note Cooling capacity may be reduced by up to 5 on units with coated coils Cabinet Color and Material The air conditioners are available in two standard cabinet colors the standard grey with...

Page 10: ...10 Marvair ComPac AVHDA I O Manual 03 2019 Rev 3 Figure 1 Typical Electrical Schematic for Units with Two Compressors...

Page 11: ...start the compressor after 24 hours 3 If the compressor will not start makes excessive noise or will not pump return the unit to the freight carrier 2 2 Installation Requirements General 1 Inspect un...

Page 12: ...24 inches 61 cm 120 inches 305 cm Table 9 Minimum Clearances 6 Codes Make sure your installation conforms to all applicable electrical plumbing building and municipal codes Some codes may limit insta...

Page 13: ...uilding must take in to account all of these factors and follow best industry practices to provide a safe and secure attachment to the building Mounting bolts for unit mounting flanges The length need...

Page 14: ...installing duct work The duct system must be engineered to insure sufficient air flow through the unit to prevent over heating of the heater element This includes proper supply duct sizing sufficient...

Page 15: ...side of the unit Drill a one inch hole in the shelter wall to match this opening Allow sufficient clearance to run 3 4 conduit through the hole and to the unit 2 Lift the unit into position using an...

Page 16: ...may incorporate an internal crankcase heater for compressor protection The crankcase heater must be energized for at least 24 hours prior to starting the compressor Scrollcompressors likeseveralothert...

Page 17: ...taneously The panel should ONLY be opened by using the two hinges on the left side OR the two hinges on the right side High Voltage Wiring The power supply should have the proper voltage phase and amp...

Page 18: ...uctor Class 2 thermostat wire from the air conditioners into the thermostat subbase assembly See Figure 4a for connections to various thermostats 2 Mount the thermostat on the wall of the shelter The...

Page 19: ...19 Marvair ComPac AVHDA I O Manual 03 2019 Rev 3 Figure 4a Thermostat Connection Diagram Figure 4b CommStat 3 Wiring Diagram...

Page 20: ...mpressor to start 5 To stop cooling slowly raise the thermostat cooling set point to a temperature higher than the ambient If the unit fails to operate refer to the troubleshooting information in Chap...

Page 21: ...and good judgement when servicing the air conditioner Use only safe and proven service techniques Use refrigeration goggles when servicing the refrigeration circuit WARNING The refrigerant circuit has...

Page 22: ...sor troubleshooting section E Water on floor near unit 1 Obstruction in condensate line 2 Obstruction or leak in condensate pan 3 Unit is not level 1 Check for clog or restriction 2 Check pan for lea...

Page 23: ...icates the lockout fault The control board will enter into and indicate lockout if either of the fault conditions LPS or HPS occur twice The compressor contactor must be closed before the first fault...

Page 24: ...or from the return grille on the inside of the building Evaporator If the evaporator becomes clogged or dirty it may be cleaned by careful vacuuming or with a com mercial evaporator cleaning spray DO...

Page 25: ...r this warranty Airxcel Commercial Group will honor its warranty and furnish the required replacement part All costs for shipment and risk of loss during shipment of the product toAirxcel Commercial G...

Page 26: ...______ Address ________________________________________State________________________ City ___________________________________________ Marvair Air conditioner Model No _________________________________...

Page 27: ...L2_______V L1 L3 ________V L2 L3______V L1 L2 L1 L3 L2 L3 3 Avg Voltage _______________ Max Deviation from avg voltage ______________volts Voltage imbalance 100 x Max Deviation avg Voltage ___________...

Page 28: ...WB Temp ________ ________ Heater Contactor Amps L1 ________ ________ Heater Contactor Amps L2 ________ ________ Heater Contactor Amps L3 ________ ________ E Cooling Mode Check Record Refrigerant Press...

Page 29: ..._________________________________________________________________________ _________________________________________________________________________ ____________________________________________________...

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