Bryant LEGACY 580J*20M Series, Installation Instructions Manual

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Table 15 — Enthalpy Operation with DCV (CO
2
Sensor) — 1 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 16 — Dry Bulb Operation No 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 HIGH 0v/Off 0v/Off VENTMIN Closed
ON OFF HIGH 24v/On 0v/Off VENTMIN Closed
ON ON HIGH 24v/On 24v/On VENTMIN Closed
Yes
OFF OFF HIGH 0v/Off 0v/Off VENTMIN Closed
ON OFF HIGH 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 HIGH 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF HIGH 24v/On 0v/Off
VENTMIN to
VENTMAX
Closed
ON ON HIGH 24v/On 24v/On
VENTMIN to
VENTMAX
Closed
Yes
OFF OFF HIGH 0v/Off 0v/Off
VENTMIN to
VENTMAX
Closed
ON OFF HIGH 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
DEMAND
CONTROLLED
VENTILATION (DCV)
OUTSIDE AIR
GOOD TO
ECONOMIZE
Y1-I Y2-I
FAN
SPEED
Y1-O Y2-O OCCUPIED UNOCCUPIED
NONE 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
NONE 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-Open
ON ON HIGH 24v/On 0v/Off*
MIN POS to Full
Open
Closed to Full-Open