Therma-Stor Products Group Ultra-Aire 100V - Manual (Page 6)

4.3 Humidity Control Adjustment
Set the humidity control to the desired humidity level for the home.
The dehumidifier will run continuously until the relative humidity
(RH) is reduced to the humidity control
dial setting. Setting the humidity control to
lower RH levels will NOT increase the unit's
dehumidification rate; the unit will simply run
longer to reduce the area's RH to the setting.
The Ultra-Aire unit (and refrigerant based
dehumidifiers in general) will reduce a warm
space's RH to a lower level than that of a
cool space. It is therefore pointless to set the
humidity control to excessively low levels in cool rooms; doing so
will result in long periods of ineffective dehumidifier run time.
Quality humidity meters are available from the factory and are
recommended to accurately monitor humidity levels.
4.4 Fan/Filter Switch
Turning ON the fan/filter switch will cause the central conditioning
unit's internal fan to run continuously, whether the central
conditioning unit is dehumidifying or not.
This function is desirable if the central
conditioning unit is used for air circulation
and filtration. When the switch is ON, air will
be constantly filtered through the central
conditioning unit and circulated throughout
the house. When the switch is OFF, the fan
will operate only when the humidity control
calls for dehumidification or when the ventilation timer calls for
ventilation.
4.5 Ventilation Timer
The ventilation timer controls the fan and the motorized fresh
air damper. When the ventilation timer is activated, the central
conditioning unit will circulate the indoor air, and bring in fresh air
from outside. The ventilation timer should be set for the required
ventilation of the residence. The home should be ventilated with
fresh air whenever it is occupied.
The ventilation timer is an electronic timer that displays the current
time. This timer has a battery backup, so it will not require resetting
after a power outage. The one minute time increments of the
ventilation timer allow you to program the ventilation of your home
to fit your schedule.
The ventilation timer has six programs with each program having
one “on” and one “off” event. A program allows the user to turn the
ventilation on at a certain day and time, then it allows them to turn
the ventilation off at a certain day and time. Each of these programs
can be repeated daily or weekly or during a specified block of days.
All six of the programs operate independently of each other.
If the timer fails to operate or operates erratically, check that
the control panel receives 24Vac from the Ultra-Aire . If 24Vac is
present at the control panel, reset the timer by pressing the reset
button at the bottom center of the timer face. The reset button is
the small recessed button with an R beneath it located below the
1…7 and h buttons. Press the reset button in until the display
disappears. Release the reset button. The display will reappear
as 00:00. Resetting the timer will clear the time and all program
settings. After resetting the timer, follow the instructions below to
set the correct time and ventilation programs.
The following instructions explain how to set the ventilation timer.
First, set the correct time on the timer by sliding the switch in
the upper right hand corner of the timer to the clock symbol +
and pressing the 1…7 (DAY), h (HOUR), and m (MINUTE) buttons.
Remember that this timer operates on a 24-hour (military time)
clock.
Next, set the ventilation time schedule. Slide the switch in the
upper right hand corner to the program symbol P “ON” will appear
to the right of the time and the number “1” will appear in the lower
right hand corner of the display. The “1” and “ON” signify the turn
on time for the first program. Press the 1…7 button to choose
the days of the week for this program. You can choose Mon-Sun
Mon-Fri, Sat-Sun, or any single day of the week. The days chosen
are shown along the top of the display on the ventilation timer. Next
press the h button to set the hour for the start of the ventilation
period. Remember that this timer operates on a 24-hour clock.
Then press the m button to set the minutes past the hour to start
the ventilation. Now, with the ventilation start time set, press the
I/O button. The word “OFF” should appear to the right of the time
and the number “1” should remain in the lower right hand corner of
the display. The “1” and “OFF” signify the turn off time for the first
program. Set the turn off time using the 1…7, h, and m buttons in
the same way as described above and continue on to the second
through sixth programs. When setting the ventilation programs,
you can return to the current time display by sliding the switch in
the upper right corner of the timer to RUN. The slide switch in the
upper right must be set to RUN for the timer to operate with the
scheduled programs.
The slide switch in the upper left of the timer is used to choose
between automatic and manual operation of the timer relay. When
the slide switch in the upper left of the timer is set to AUTO mode,
the central conditioning unit will ventilate when the scheduled
programs call for ventilation. When the slide switch in the upper
left of the timer is set to manual (set to hand symbol on the the
right), the operation of the timer is controlled by the I/O button only.
Pressing the I/O button will switch the ventilation timer between
ON (detent) and OFF (detent). As you press the I/O button, “ON” or
“OFF” will be displayed to the right of the time. The “ON” or “OFF”
Figure 4
Fan/Filter Switch
6 7 Ultra-Aire 100V Installer’s & Owner’s Manual Ultra-Aire 100V Installer’s & Owner’s Manual
FOR HVAC INSTALLER ONLY
Figure 3
Humidity Control
Adjustment Knob