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Fresh Air Systems
What types of controls are available to operate the Fresh Air Systems equipment?
Low voltage wiring (4-conductor telephone-type cable) is required to install the humidity controls, which activate and operate the ventilation equipment. The ERV must have one of the Central controls. The VT3W model activates the ERV by sensing pollutants (not humidity). There are also 20 minute push-button timers available to activate the units for short intervals rather than operating in a "constant on" mode.