Features

• W7100 Controller maintains an average discharge air temperature in variable air volume (VAV) cooling systems by modulating an economizer and sequencing stages of mechanical cooling.
• The W7100 can be applied to electric makeup air and other systems requiring discharge air control of multistage heating or cooling.
• Staging capacity of the W7100A,C can be extended six stages using a W7101A Satellite Sequencer.
• When power is interrupted, the system cycles to all stages off.
• When power is restored, the economizer will first be modulated open (if enthalpy is suitable), then stages of mechanical cooling will be sequenced on.
• If enthalpy is not suitable for economizer operation, the first stage of cooling or heating is energized within five minutes.
• Reset signal from either space sensor or outdoor air sensor.