Triathlon (heat pump)

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The York Triathlon was a heat pump system for residential and small business heating and air conditioning introduced circa 1997. Unlike conventional designs where the compressor is driven by an electric motor on the Triathlon it was driven by a small natural gas burning engine. Maintenance requirements included changing the oil and spark plugs on the engine. This equipment is no longer offered. Although it burned natural gas it should not be confused with the absorption cooling which is a heat-driven technology. The Triathlon units utilized the conventional refrigeration cycle and was unique only in its use of an engine to spin the compressor.

York is now a unit of Johnson Controls.