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Ultra-Aire 150H Installer’s & Owner’s Manual
WARNING
Warning: Connecting the white wire to the control terminal
without use of a motorized damper could create a short
resulting in damage to the transformer.
The white wire controls the motorized damper that can be installed
into a fresh air duct. This provides the ability to control when fresh
air is introduced into the building by using the ventilation timer
function labeled “damper” on the control. If the motorized damper is
not used,
DO NOT CONNECT THE WHITE WIRE TO THE CONTROL
OR DAMAGE TO THE TRANSFORMER MAY RESULT.
Simply leave
the white wire terminal (Y1) unused if the damper is not used.
5.2C Location
Install the remote control panel in a central area of the structure
where it will sense the relative humidity of the structure accurately.
Do not install the control panel where it may not accurately sense
the relative humidity such as near HVAC supply registers, near
exterior doors and windows, or near a pool or spa.
5.3 Operation
5.3A Display
When there is power to the control, the control display sequence will
alternately show the clock, humidity, temperature, fan status, and
fresh air damper status. The display sequence repeats continually,
and is referred to as “home state”.
• 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 Set point 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 displays only
when the damper operation is set to the programmed setting “Pr”.
5.3B 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 control will remember any
changes made and return to “home state.”
5.3C 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.
5.3D Setting Clock Time
1. Push “CLOCK” button. The hour display will flash, use the “SET” +
or – button to adjust hour. Notice the a.m./p.m. display.
Figure 6: Setting clock time.
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.
FOR HVAC INSTALLER AND HOMEOWNER
