Dectron, Inc. March 2012
Owner’s Manual
DSH/DSV/RSH/DBH/RBH Series Dehumidifier
Determine Damper Types T.A.B.
Data subject to change without notice.
179
DECTRON
Determine the type of outdoor-air adjustment -
In some cases, outdoor-air intake may be by others.
Closed
Open
Partly Open
Some units may have sliding perforated plates.
An electrically operated vane damper may also be
present.
To adjust the perforated plates, turn the
adjusting screw
counter-clockwise to
increase the outdoor air intake,
per the instructions on following pages.
Some units may have a manually adjusted vane
damper. In this case, loosen the wing nut, adjust
the damper lever, and tighten the wing nut, per
instructions on following pages.
NOTE: Any covers are not shown.
Filter Door
Some units may have a two-wire electrically
operated vane damper. In this case, set a screw
stop at the correct position on the actuator to limit
the maximum damper opening, per the
instructions on following pages.
Some units may have a three-wire electrically
operated vane damper. In this case, the damper
position will be set in software. For units with
economizer or Purge options, refer to the
instructions in the Purge or economizer
appendices.