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The GF30 is a mobile diesel air conditioning unit designed to cool or, when equipped, heat an aircraft to obtain the adequate temperature in the cockpit and cabin during pre-flight operations, boarding and maintenance. It has sufficient cooling power for narrow and wide body aircraft (C to D types) and meets the needs and requirements of civil aircraft in all climates. It can be specifically configured for continental/tropical or desert conditions. The GF30 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 GF30 utilizes the R134a refrigerant which has zero ozone depletion potential.