Jade Range W7220 - Manual (Page 18)

JADE ™ ECONOMIZER MODULE
62-0331—11 18
Table 10. Dry Bulb Operation With DCV (CO2 sensor) - 2 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.
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 11. Enthalpy Operation No DCV (CO2 sensor) - 2 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.
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.
DCV
OA Good to
economize? Y1-I Y2-I FAN SPD Y1-O Y2-O Occupied Unoccupied
Below set No Off Off Low 0-v/Off 0-v/Off VENTMIN L Closed
On Off Low 24-v/On 0-v/Off VENTMIN L Closed
On On High 24-v/On 24-v/On VENTMIN H Closed
Yes Off Off Low 0-v/Off 0-v/Off VENTMIN L Closed
On Off Low 0-v/Off 0-v/Off VENTMIN L to Full-
Open
Closed to Full-Open
On On High 24-v/On
0-v/Off a VENTMIN H to Full-
Open
Closed to Full-Open
Above set No Off Off Low 0-v/Off 0-v/Off VENTMIN L to
VENTMAX
Closed
On Off Low 24-v/On 0-v/Off VENTMIN L to
VENTMAX
Closed
On On High 24-v/On 24-v/On VENTMIN H to
VENTMAX
Closed
Yes Off Off Low 0-v/Off 0-v/Off VENTMIN L to
VENTMAX
Closed
On Off Low 0-v/Off 0-v/Off VENTMIN L to Full-
Open
Closed to Full-Open
On On High DELAY b
24-v/On
0-v/Off a VENTMIN H to Full-
Open
Closed to Full-Open
DCV
OA Good to
economize? Y1-I Y2-I FAN SPD Y1-O Y2-O Occupied Unoccupied
NO CO2
SENSOR
No Off Off Low 0-v/Off 0-v/Off MIN POS L Closed
On Off Low 24-v/On 0-v/Off MIN POS L Closed
On On High 24-v/On 24-v/On MIN POS H Closed
Yes Off Off Low 0-v/Off 0-v/Off MIN POS L Closed
On Off Low 0-v/Off 0-v/Off MIN POS L to Full-
Open
Closed to Full-Open
On On High DELAY b
24-v/On
0-v/Off a MIN POS H to Full-
Open
Closed to Full-Open