Honeywell Design and Application Technical Reference Manual page 131

Table 9. Dry Bulb Operation With DCV (CO
OA Good to
DCV economize?
Below No
set
Yes
Above No
set
Yes
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.
b
With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed
fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper
100% before the first stage mechanical cooling is enabled.
Table 10. Enthalpy Operation No DCV (CO
OA Good to
DCV economize?
NO CO2 No
SENSOR
Yes
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.
b
With 2SP FAN DELAY (Advanced Setup Menu) when in the economizing mode there is a delay for the high speed
fan to try to satisfy the call for second stage cooling by turning on the fan to high and opening the OA damper
100% before the first stage mechanical cooling is enabled.
Y1-I Y2-I FAN SPD
Off Off Low
On Off Low
On On High
Off Off Low
On Off Low
On On High
Off Off Low
On Off Low
On On High
Off Off Low
On Off Low
On On High
Y1-I Y2-I FAN SPD
Off Off Low
On Off Low
On On High
Off Off Low
On Off Low
On On High
Section 11 - W7220 JADE™ Economizer Module
sensor) - 2 Speed Fan.
2
Y1-O Y2-O
0-v/Off 0-v/Off
24-v/On 0-v/Off
24-v/On 24-v/On
0-v/Off 0-v/Off
0-v/Off 0-v/Off
24-v/On a
0-v/Off
0-v/Off 0-v/Off
24-v/On 0-v/Off
24-v/On 24-v/On
0-v/Off 0-v/Off
0-v/Off 0-v/Off
b a
DELAY 0-v/Off
24-v/On
sensor) - 2 Speed Fan.
2
Y1-O Y2-O
0-v/Off 0-v/Off
24-v/On 0-v/Off
24-v/On 24-v/On
0-v/Off 0-v/Off
0-v/Off 0-v/Off
b a
DELAY 0-v/Off
24-v/On
125
Occupied Unoccupied
VENTMIN L Closed
VENTMIN L Closed
VENTMIN H Closed
VENTMIN L Closed
VENTMIN L to Closed to Full-Open
Full-Open
VENTMIN H to Closed to Full-Open
Full-Open
VENTMIN L to Closed
VENTMAX
VENTMIN L to Closed
VENTMAX
VENTMIN H to Closed
VENTMAX
VENTMIN L to Closed
VENTMAX
VENTMIN L to Closed to Full-Open
Full-Open
VENTMIN H to Closed to Full-Open
Full-Open
Occupied Unoccupied
MIN POS L Closed
MIN POS L Closed
MIN POS H Closed
MIN POS L Closed
MIN POS L to Closed to Full-Open
Full-Open
MIN POS H to Closed to Full-Open
Full-Open
Honeywell Economizers 63-8594-02