Reset Volume Controller: 3800 Series, Direct/Reverse Acting, Normally Open or Normally Closed Ultra low noise mix head

Ultra low noise mix head amp design bluetooth & MP3 player/recorder with concise human-machine interactive interface

One piece fiberglass with plastic head

Limited lifetime warranty on body

and carry the product for ultimate adaptability

Reset Volume Controller: 3800 Series, Direct/Reverse Acting, Normally Open or Normally Closed Ultra low noise mix headReset Volume Controller: 3800 Series, Direct Reverse Acting, Normally Open or Normally Closed Item 20RG02 Mfr. Model P 3800 1 Reset volume controls connect to a pneumatic thermostat or other pneumatic device and control the airflow through a VAV (variable air volume) box. They act as sub controllers for the thermostat and interpret the pneumatic signal to optimize airflow for their HVAC branch. Brand JOHNSON CONTROLS Series 3800 Manufacturer Part