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The GF30M is a mobile diesel air conditioning unit designed to cool or, when equipped, heat an aircraft to obtain the adequate temperature in the cabin and in the Forward and Aft forced air systems during pre-flight operations, boarding and maintenance. It has sufficient cooling power for aircraft type E-3 AWACS and A330 MRTT and meets the needs and requirements of military aircraft in most climates. It can be specifically configured for continental/tropical or desert conditions. The GF30M is built with top of the line material, resulting in extremely low maintenance requirements during its lifetime. The cooling circuit does not need to be opened and maintained before 100,000 hours of operation. The GF30M utilizes the R134a refrigerant which has zero ozone depletion potential.