GAH Wall Mount Air Conditioners w/Gas Heat

Models:
GAH1024A-1060A

General Description

Marvair GAH1024A - GAA1060A wall mounted air conditioners with gas heat are designed for use on a variety of applications including modular classrooms, relocatable offices and a multitude a permanent buildings. The GAH unit is manufactured in two cabinets with nominal cooling capacities of 2, 2-1/2, 3, 3-1/2, 4 and 5 tons and input heating capacities of 45,000; 67,500; 75,000; 90,000; 100,000 and 125,000 BTUHs.

The Marvair GAH series is available with a number of factory and field installed options and accessories that permit the user to optimize the unit for specific applications.

Safety Listed and Energy Certified

All Marvair air conditioners conform to UL/CSA standard 60335-1 and 60335-2-40 and CAN/CSA C22.2, No. 236-11 Ed.4. For energy efficiency and performance, the units are tested and rated in accordance to the current ANSI/ARI (Air-Conditioning and Refrigeration Institute) Standard 390 (Single Package Vertical Units). All units meet or exceed the efficiency requirements of ANSI/ASHRAE/IESNA 90.1.2010. Marvair GAA air conditioners are commercial units and are not intended for use in residential applications.

Marvair GAA Wall Mount AC with Gas Heat

GAH Models with Gas Heat

EER: 1100 with 80% Heating Efficiency

Cooling Capacities: 2, 2.5, 3, 3.5, 4 and 5 tons (24,000 BTUH to 60,000 BTUH)

Input Heating Capacities: 45,000; 67,500; 75,000; 90,000; 100,000 and 125,000 BTUHs

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Economical Gas Heat

  • Factory set up for natural gas with easy conversion in field to propane
  • Natural gas high altitude pressure switch kit allows operation in sites from 6,000 to 10,000 ft. (1,830 m to 3,050 m)
  • Propane high altitude pressure switch kit allows operation in sites from 6,000 to 10,000 ft. (1,830 m to 3,050 m)
  • Vertical vent pipe kits

Ease of Installation

  • Built-in mounting flanges eliminate need for side brackets
  • Sloped top sheds water, minimizes chance of water leaks and eliminates the need for a rainhood
  • Top flashing piece and bottom mounting bracket provided on all units
  • Electrical knockouts on back and side
  • Gas connection on the right side
  • Power disconnect

    Ease of Service

    • Compressor and electrical box are easily accessible
    • Refrigerant access values allow quick check of refrigerant pressures
    • Easily accessible filter
    • LED identifies operating status and simplifies service by flashing fault code in heating mode
    • Copper tube, aluminum fin evaporator and condenser coils

    Protection of Refrigeration System Components

    • High and low pressure switches
    • Compressor time delay

    Low Ambient Operation in Cooling Mode

    • Condenser fan cycles allowing cooling to 20°F (-7°C)

    Patented Tubular Heat Exchanger with Integral Formed Dimple Turbulator

    • Enhanced heat transfer for optimum efficiency
    • Quiet – eliminates noise caused by expansion and contraction of internal baffles

      Patented Inshot Gas Burners

      • Quiet, clean burning gas inshot burners fire in a direct line with the orifice and the tube
      • Unique carryover design (cross lighting from one burner to another) for immediate lighting
      • Optional stainless steel burner

      Direct Spark Ignition Control System with LED Flash

      • Fault Indicator
      • Thirty second purge of heat exchanger prior to ignition
      • Three ignition trials before lockout
      • Sixty second post purge at end of operating cycle prevents nuisance trips of rollout switch
      • One hour automatic reset after lockout – eliminates need to manually recycle on lockout
      • LED identifies operating status and simplifies service by flashing fault code