The
901-HR Series Heating Sequencer is a "first on/last off," low
voltage, time based step controller. The sequencer is available in nine models
(2 through 10 stages) of 24V AC non-isolated output control. The 901-D Logic is
required to interface the thermostat input to the sequencer and provide 24V AC
power to the sequencer through factory furnished cables. The 901-HR Sequencer
may be used as a stand alone with any 901-D or in combination with proportional
power switches.
Features
•Available in nine models, 2 through 10
stages.
•Four selectable time delay options.
•May use stand alone, as a sequencer, or in
conjunction with modulation for Vernier applications.
