Features and Benefits

Factory Installed Economizer

  • Reduces costs by using outside air when possible
  • Integral pressure relief
  • Capable of bringing in outside air equal to 100% of the rated air flow
  • When used with optional minimum position potentiometer, economizer can meet requirements of ASHRAE 62-1999

R-410A Refrigerant

  • Efficient Heat Release
  • Non-Ozone Depleting Refrigerant
  • Synthetic Lubricant
  • Reduced Compressor Wear

High Efficiency and Reliability

  • High Efficiency Compressor and Lanced Coil Fins
  • High/Low Pressure Switches with Lockout & Short Cycle Protection
  • Ease of Installation and Service
  • Built-In Mounting Flanges and Internal Disconnect
  • Standard Access Valves and Filters, Status LEDs

Product Literature

Marvair MAA1020A-1072A Wall-Mount AC PDS (Rev.18) (pdf - 4077 KB)
Download
Marvair MAA1036D-1060D 48VDC Wall Mount AC PDS (Rev.3) (pdf - 2509 KB)
Download
Marvair MGA3120-3180 Wall-Mount AC PDS (Rev.2) (pdf - 4191 KB)
Download
Marvair GAA1024-1060 AC w/Gas Heat PDS (Rev.2) (pdf - 1716 KB)
Download

Product Manuals

Marvair GAA1024-1048 AC w-Gas Heat I-O_Manual (New) (pdf - 2613 KB)
Download
Marvair MAA1020A-1060A & MGA1072A Wall-Mount AC I&O Manual (Rev.9) (pdf - 3924 KB)
Download
Marvair MAA1036D-1060D 48VDC Wall Mount AC I&O Manual (Rev.2) (pdf - 2659 KB)
Download
Marvair MGA3090-3120 Wall Mount AC Manual (Rev.2) (pdf - 2152 KB)
Download

Available Options & Accessories

Available Options & Accessories

GAA Wall Mount Air Conditioners with Gas Heat

Models:
GAA1024A - GAA1048A

Marvair GPac Classroom AC Gas Heat

General Description

Marvair GAA1024A - GAA1048A 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 GAA unit is manufactured in two cabinets with nominal cooling capacities of 2, 2-1/2, 3, 3-1/2, and 4 tons and input heating capacities of 45,000; 67,500; 75,000; 90,000; 100,000 and 125,000 BTUHs.

The Marvair GAA 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.

Model GAA:

  • EER: 11.00 with 80% Heating Efficiency
  • Cooling Capacities: 2, 2-1/2, 3, 3-1/2, and 4 tons and input heating capacities of 45,000; 67,500; 75,000; 90,000; 100,000 and 125,000 BTUHs

Safety Listed and Energy Certified

All Marvair GAA air conditioners are built to the current UL and CAN/CSA standards. The units are listed by ETL and tested to the American National Standard/CSA Standard for Gas Fired Central Furnaces; ANSI Z 21.47 -2006/CSA 2.30-2006. For energy efficiency and performance, the units are tested and rated in accordance to the current ANSI/AHRI (Air-Conditioning Heating and Refrigeration Institute) Standard 390 (Single Package Vertical Units). All GAA 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.

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

  • Sloped top with flashing sheds water eliminates need the need for a rainhood
  • Built-in full length mounting flanges facilitate installation and minimizes chance of water leaks
  • Electrical knockouts on back and side
  • Gas connection on the right hand side
  • Factory installed disconnect

Built-in Reliability

  • High and low pressure switches with lockout relay protect refrigerant circuit
  • Time delay/anti-short cycle timer and low ambient control

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 nusaince 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

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

For detailed specifications, performance, and efficiency information, download the Product Data Sheet from the document list on this page.