
4
NIGHT TEMPERATURE SETPOINTS:
1. Continue to toggle the SET switch down until the NIGHT MODE indicator on the LCD
display is flashing on the LCD display along with either the VENT A,VENT B or the
HEATING light, release the switch.
2. Hold the VALUE switch either UP or DOWN until the desired NIGHT value is displayed,
release switch.
TO SET THE DAY, NIGHT, AND DIF MODE TIMES
The control can detect night automatically with the use of an external photocell. If no photocell is
connected, it will use the internal 24-hour time clock. You can also use a combination of both if
desired.
1. Continue to depress the SET switch until the SET MODE/CLOCK LED is on and the DAY MODE
indicator on the LCD display is on. The word “PHO” will be displayed. This indicates that the
control will use the photocell to go into the day mode. If the internal time clock preferable, use the
value switch to advance to a time of day setting. The first value will be hours. Depress the SET
switch again to set the minutes, and again to set AM or PM.
2. Depress the SET switch again so that the SET MODE/CLOCK LED is on and the NIGHT MODE
indicator on the LCD display is on. Repeat the same procedure as in the above DAY MODE
setting for the desired NIGHT MODE selection.
3. Depress the SET switch again so that the SET MODE/CLOCK LED is on and the DIF MODE
indicator on the LCD display is on. If DIF is not to be activated, adjust the flashing value to “OFF”.
If DIF is to be activated, adjust the flashing value, “bEF.X.X”, to indicate the number of hours
before sunrise to go into DIF. Depress the SET switch again and adjust the flashing value, “AF.
X.X”, to indicate the number of hours after sunrise to come out of DIF.
To Set the Clock:
1. Toggle the SET switch until the SET MODE/CLOCK LED is on and the Ventmate Plus is showing
the current time. The item to be set will be flashing. Use the VALUE switch to raise or lower the
flashing value. The first value will be hours. Depress the SET switch again to set the minutes,
and again to set if it is AM or PM.
2. Return to the RUN mode by toggling the RUN-SET switch up.
To Set Vent Information
TO SET THE NUMBER OF STAGES:
Toggle the SET switch until the SET UP VENT and VENT A LED is on. The number of stages
for Vent A will be flashing. Use the VALUE switch to raise or lower the flashing value. The
Ventmate Plus will automatically divide the percentage open for each stage. For example, a 4-
position selection will allow each stage to open 25%.
TO SET THE OPENING TIME:
Toggle the SET switch until the SET UP VENT and VENT ALED is on and the LCD display is
showing “OP XXX”, where the “XXX” is the time in seconds that the vent will take to go from a
fully closed to a fully open position. Use the VALUE switch to raise or lower the flashing value.
TO SET OVERRIDE POSITION:
Toggle the SET switch until the SET UP VENT and VENT ALED is on and the LCD display is
showing “Or: XX”, where the “XX” is the position that the vent will go to on an override signal