51
Table 19 — Dry Bulb Operation with DCV (CO
2
 Sensor) — 2 Speed Fan
*With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on second stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I
have not been satisfied.
Table 20 — Enthalpy Operation without DCV (CO
2
 Sensor) — 2 Speed Fan
*With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on second stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I
have not been satisfied.
Table 21 — Enthalpy Operation with DCV (CO
2
 Sensor) — 2 Speed Fan
*With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on second stage of mechanical cooling Y2-O after the delay if the call for Y1-I and Y2-I
have not been satisfied.
DEMAND 
CONTROLLED 
VENTILATION (DCV)
OUTSIDE AIR 
GOOD TO 
ECONOMIZE
Y1-I Y2-I
FAN 
SPEED
Y1-O Y2-O OCCUPIED UNOCCUPIED
Below CO
2
 Set
No
OFF OFF LOW 0v/Off 0v/Off VENTMIN Closed
ON OFF LOW 24v/On 0v/Off VEN
TMIN Closed
ON ON HIGH 24v/On 24v/On VENTMIN Closed
Yes
OFF OFF LOW 0v/Off 0v/Off VENTMIN Closed
ON OFF LOW 0v/Off 0v/Off
VENTMIN to
Full-Open
Closed to Full-Open
ON ON HIGH 24v/On 0v/Off
VENTMIN to
Full-Open
Closed to Full-Open
Above CO
2
 Set
No
OFF OFF LOW 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF LOW 24v/On 0v/Off
VENTMIN to
VENTMAX
Closed
ON ON HIGH 24v/On 24v/On
VENTMIN to
VENTMAX
Closed
Yes
OFF OFF LOW 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF LOW 0v/Off 0v/Off
VE
NTMIN to
Full-Open
Closed to Full-Open
ON ON HIGH 24v/On 0v/Off*
VENTMIN to
Full-Open
Closed to Full-Open
DEMAND 
CONTROLLED 
VENTILATION (DCV)
OUTSIDE AIR 
GOOD TO 
ECONOMIZE
Y1-I Y2-I
FAN 
SPEED
Y1-O Y2-O OCCUPIED UNOCCUPIED
NO CO
2
 SENSOR
NO
OFF OFF LOW 0v/Off 0v/Off MIN POS Closed
ON OFF LOW 24v/On 0v/Off MIN POS Closed
ON ON HIGH 24v/On 24v/On MIN POS Closed
YES
OFF OFF LOW 0v/Off 0v/Off MIN POS Closed
ON OFF LOW 0v/Off 0v/Off MIN POS to Full Open Closed to Full-O
pen
ON ON HIGH 24v/On 0v/Off* MIN POS to Full Open Closed to Full-Open
DEMAND 
CONTROLLED 
VENTILATION (DCV)
OUTSIDE AIR 
GOOD TO 
ECONOMIZE
Y1-I Y2-I
FAN 
SPEED
Y1-O Y2-O OCCUPIED UNOCCUPIED
Below CO
2
 Set
No
OFF OFF LOW 0v/Off 0v/Off VENTMIN Closed
ON OFF LOW 24v/On 0v/Off VENTMIN Closed
ON ON HIGH 24v/On 24v/On VENTMIN Closed
Yes
OFF OFF LOW 0v/Off 0v/Off VENTMIN Closed
ON OFF LOW 0v/Off 0v/Off
VENTMIN to
Full-Open
Closed to Full-Open
ON ON HIGH 24v/On 0v/Off
VENTMIN to
Full-Open
Closed to Full-Open
Above CO
2
 Set
No
OFF OFF LOW 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF LOW 24v/On 0v/Off
VENTMIN to
VENTMAX
Closed
ON ON HIGH 24v/On 24v/On
VENTMIN to
VENTMAX
Closed
Yes
OFF OFF LOW 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF LOW 0v/Off 0v/Off
VENTMIN to
Full-Open
Closed to Full-Open
ON ON HIGH 24v/On 0v/Off*
VENTMIN to
Full-Open
Closed to Full-Open