Airxcel Marvair ComPac II AVHDA90 Installation & Operation Manual Download | Manualshive

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

Figure 4a. Thermostat Connection Diagram

Figure 4b. CommStat 3 Wiring Diagram

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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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