Honeywell Design and Application - Page 129

Section 11 - W7220 JADE™ Economizer Module
123 Honeywell Economizers 63-8594-02
Table 5. Dry Bulb Operation With DCV (CO
2
sensor) - 1 Speed Fan.
a
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 –O after
the delay if the call for Y1-I and Y2-I have not been satisfied.
Table 6. Enthalpy Operation No DCV (CO
2
sensor) - 1 Speed Fan.
a
With stage 3 delay (STG3 DLY) in Advanced setup menu can turn on 2nd stage of mechanical cooling Y2 –O after
the delay if the call for Y1-I and Y2-I have not been satisfied.
DCV
OA Good to
economize? Y1-I Y2-I FAN SPD Y1-O Y2-O Occupied Unoccupied
Below
CO2 set
No Off Off High 0-v/Off 0-v/Off VENTMIN Closed
On Off High 24-v/On 0-v/Off VENTMIN Closed
On On High 24-v/On 24-v/On VENTMIN Closed
Yes Off Off High 0-v/Off 0-v/Off VENTMIN Closed
On Off High 0-v/Off 0-v/Off VENTMIN to
Full-Open
Closed to Full-Open
On On High 24-v/On
0-v/Off
a
VENTMIN to
Full-Open
Closed to Full-Open
Above
CO2 set
No Off Off High 0-v/Off 0-v/Off VENTMIN to
VENTMAX
Closed
On Off High 24-v/On 0-v/Off VENTMIN to
VENTMAX
Closed
On On High 24-v/On 24-v/On VENTMIN to
VENTMAX
Closed
Yes Off Off High 0-v/Off 0-v/Off VENTMIN to
VENTMAX
Closed
On Off High 0-v/Off 0-v/Off VENTMIN to
Full-Open
Closed to Full-Open
On On High 24-v/On
0-v/Off
a
VENTMIN to
Full-Open
Closed to Full-Open
DCV
OA Good to
economize? Y1-I Y2-I FAN SPD Y1-O Y2-O Occupied Unoccupied
None No Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 24-v/On 0-v/Off MIN POS Closed
On On High 24-v/On 24-v/On MIN POS Closed
None Yes Off Off High 0-v/Off 0-v/Off MIN POS Closed
On Off High 0-v/Off 0-v/Off MIN POS to
Full-Open
Closed to Full-Open
On On High 24-v/On
0-v/Off
a
MIN POS to
Full-Open
Closed to Full-Open