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Ultra-Aire 135H Air Purifying Dehumidifier Owners Manual 5
• The word “CLOCK” appears at the top of the display during
the clock display, along with the day and time.
• The word “HUMIDITY” appears during the humidity display,
with the current setpoint on the left, and the ambient RH
on the right.
• The word “TEMP” appears as the unit displays the current
temperature.
• The fan status display is indicated by a capitol “F”. “OF”
indicates fan off status, “on” indicates fan on status.
• The damper display is indicated by a “d” with the same
on/off status indicators as the temperature.
• The ventilation program is displayed along the bottom of
the display during the clock, humidity, and temperature dis-
plays only when the damper operation is set to the pro-
grammed setting “Pr”.
5.2B Setting
During the set-up process, if you make a mistake, you can
always go back to adjust the settings. If you leave the control
alone and don’t touch any buttons for 10 seconds, the con-
trol will remember any changes made and return to “home
state.”
5.2C On/Off Setting
Press the “ON/OFF” button to turn the system on or off.
When the system is on, the green indicator will be lit. In the
off mode, the controller continues the regular display
sequence and indicates current time, temperature, and
relative humidity. It also displays the status of the fan and
damper as if the control were on, but the fan and damper will
not operate unless the control is on and the green indicator
is lit. Setup can be done with the control either on or off.
5.2D Setting Clock Time
1. Push “CLOCK” button. The hour display will flash, use the
“SET” + or – buttons to adjust hour. Notice the a.m./p.m.
display.
2. Push “CLOCK” button again. The minute display will flash.
Use the “+,–” buttons to adjust to the proper time.
3. Push “CLOCK” button again. The day display will flash. Use
the “+,–” buttons to select the proper day.
4. Push “CLOCK” button again. The AM/PM display will flash.
Verify AM/PM setting is correct.
5. Push “CLOCK” button again, or wait a few seconds for the
display to stop flashing. The time is now set.
5.2E Setting Relative Humidity Setpoint
The relative humidity setpoint operates the dehumidifier
function of the Ultra-Aire. It has no effect on any other func-
tion of the unit. The control senses the ambient relative
humidity of the space in which it is located. The ambient con-
dition is displayed on the right in the relative humidity display
sequence, under the word “HUMIDITY”. The current setpoint
is displayed on the left, under the word “SET”.
If the setpoint is equal to or greater than the current ambient
condition, the space does not need to be dried, so the dehu-
midifier function will be off. Example: Setpoint: 50% RH
Current condition 45% RH = Dehumidifier off, red “DEHU”
indicator not lit.
If the setpoint is less than the ambient condition, the
dehumidifier will be on, and the red “DEHU” indicator will be
lit. The space is more humid than the setpoint, so the con-
troller operates the dehumidifier to dry the space. Example:
Setpoint: 50% RH Current condition: 55% RH = Dehumidifier
on, red “DEHU” indicator lit.
To set the relative humidity setpoint, press the “HUM” button.
The display will show the “HUMIDITY” display, and the word
“SET” will flash. Use the “SET” + or – buttons to adjust the
relative humidity setpoint as desired. Therma-Stor Products
recommends relative humidity levels of 45% in the summer,
and lower levels in the winter. It is not recommended the
humidity setpoint be set below 35%. In order to dry the home
in the winter in a cold climate, use the ventilation function of
the system rather than the dehumidifier function.
On/Off
Program
Clock
Fan
Damper
Hum
Figure 2: DEH 2000 User Panel
Figure 3: DEH 2000 Clock DIsplay
Figure 4: Fan Setting