Jade Range W7220 User 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