Trane Foundation EBC180 - JADE Controls - Low Leak Economizer Sequence of Operation

RT-SVX50J-EN
29
JADE Controls - Low Leak
Economizer Sequence of
Operation
Table 5. Dry bulb operation no DCV (CO
2
sensor) - 1 speed fan
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
(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. Dry bulb operation with DCV (CO
2
sensor) - 1 speed fan
DCV
OA Good to
economize?
Y1-I Y2-I FAN SPD Y1-O Y2-O
Occupied Unoccupied
Below CO
2
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 CO
2
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
(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 7. Enthalpy operation no DCV (CO
2
sensor) - 1 speed fan
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
(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.
SSttaarrtt UUpp