Honeywell Design and Application Technical Reference Manual page 130

Section 11 - W7220 JADE™ Economizer Module
Table 7. Enthalpy 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 8. Dry Bulb Operation No DCV (CO
OA Good to
DCV economize?
None No
None 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.
63-8594-02 Honeywell Economizers
Y1-I Y2-I FAN SPD
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Off Off High
On Off High
On On High
Off Off High
On Off High
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
sensor) - 1 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
124
Occupied Unoccupied
VENTMIN Closed
VENTMIN Closed
VENTMIN Closed
VENTMIN Closed
VENTMIN to Full- Closed to Full-Open
Open
VENTMIN to Full- Closed to Full-Open
Open
VENTMIN to Closed
VENTMAX
VENTMIN L to Closed
VENTMAX
VENTMIN H to Closed
VENTMAX
VENTMIN L to Closed
VENTMAX
VENTMIN to Full- Closed to Full-Open
Open
VENTMIN to Full- Closed to Full-Open
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