The ATV is a chilled water air handler designed for applications where very little depth is available. In the "4-pipe" configuration there are two seperate sets of valves and heat exchangers for cooling and heating. Two pipes connect to the chiller system to provide cooling, and two pipes connect to an auxiliary heat source, such as a boiler, to provide heating. Designed for ducted applications, the ATV series is equipped with high-velocity (HV) blowers with internal motors to reduce depth for more flexibility during installation.
They are also available with brushless "WhisperCool" DC blowers that are extremely quiet yet can overcome significant static pressure in the ducting system.