Manual 2100-759
Page
13 of 16
ran to the damper motor (OUT on control board).
The other end of the gray wire should be connected
to the CO
2
sensor as stated in Method 1.
During 2-10VDC operation with "01" energized and
pre-purge timed operation active, DC voltage signaling
occupancy from a source such as a CO
2
sensor will
increase ventilation amounts as needed.