3.8 Damper Operation and Ventilation,
Manual (Hold) Mode
The
“VENT”
setting controls the ventilation function of the
system. It has no control over the dehumidification function. In
order to provide ventilation, the motorized damper must be open
and the fan must be running. The controller takes care of these
two functions automatically so that whenever the damper is
open, the fan is running.
The ventilation indicator
“O”
will be displayed whenever the
unit is ventilating. The fan operation indicator
“O”
will also be lit.
There are three damper operation modes:
1.
“OPEN”
– hold mode: The damper will be open and the
dehumidifier fan will be continuously operating to introduce
fresh air into the space. Use this mode for continuous fresh
air ventilation. The fan is always on when the damper is open.
2.
“CLOSED”
– hold mode: The damper will never open, and
the dehumidifier will not ventilate. The fan will still operate
normally for recirculation and dehumidification.
3.
“PROGRAMMED”
mode: The DEH 3000R will operate the
motorized damper and the dehumidifier fan according to the
programmed ventilation schedule (Section 3.9).
The factory preset for the
“VENT”
setting is
“CLOSED”
.
To set “OPEN” – hold or “CLOSED” – hold ventilation
operation:
1. Press the
“VENT”
button. The current setting will begin to
flash on the display. Release the button.
2. Press the
“VENT”
button again to switch between
“OPEN”
and
“CLOSED”
.
3. Leave the control alone for 10 seconds and your settings will
be saved.
3.9 Damper Operation and Ventilation,
Programmed Ventilation
This example shows the system in program mode (denoted by
the schedule 15 minutes on, 5 minutes off and the word RUN in
the lower right corner of the display).
The DEH 3000R will operate fresh air ventilation according to
your ventilation program. The control needs to be programmed
to turn the ventilation function ON and OFF at the desired
intervals. This is done by programming the ventilation timer.
There are two programs available for ventilation:
1. Monday through Sunday
2. Monday through Friday & Saturday/Sunday
Each block of days has a morning schedule and a night
schedule. Morning is the first 12 hours of the day and night is
the second 12 hours.
Each schedule has:
• A
“START”
time when the ventilation schedule begins,
• An
“OPEN FOR”
duration for the amount of time the damper
stays open in 5 minute intervals, from 0 to 60,
• And
“CLOSED FOR”
duration which closes the damper for a
specified time in 5 minute intervals from 0 to 60.
Setting the Ventilation Program:
1. Press the
“PROGRAM ENTER”
button until the following
menu appears:
2. Using the up/down
“RH”
buttons, highlight
“PROGRAM”
and select it by pressing the
“PROGRAM ENTER”
button.
The following menu appears:
8
DEH 3000R Dehumidifier & Ventilation System Controller
Installation, Operation & Service Manual
