FOR HVAC INSTALLER ONLY
The ventilation timer allows 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
4.4A Setting the Time
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
4.4B Ventilation 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
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
4.4C Automatic or Manual Mode
The slide switch in the upper left of the timer is used to choose between automatic and manual operation. When the slide switch is set to AUTO mode, the
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