Trane Foundation EBC180 Installation, Operation And Maintenance Manual page 31

Table 10. Dry bulb operation with DCV (CO
OA Good to
DCV
economize?
No
Below set
Yes
No
Above 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 11. Enthalpy operation no DCV (CO
OA Good to
DCV
economize?
No
NO CO
2
SENSOR
Yes
(a) 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.
(b) 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.
RT-SVX50J-EN
sensor) - 2 speed fan
2
Y1-I Y2-I FAN SPD
Off Off Low
On Off Low
High
On On
Off Off Low
On Off Low
High
On On
Off Off Low
On Off Low
High
On On
Off Off Low
On Off Low
High
On On
sensor) - 2 speed fan
2
Y1-I Y2-I FAN SPD
Off Off Low
On Off Low
High
On On
Off Off Low
On Off Low
High
On On
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 0-v/Off (a)
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
DELAY 24-v/On
0-v/Off (a)
(b)
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
DELAY 24-v/On (a) 0-v/Off (b)
Occupied
VENTMIN L
VENTMIN L
VENTMIN H
VENTMIN L
VENTMIN L to Full-Open Closed to Full-Open
VENTMIN H to Full-Open Closed to Full-Open
VENTMIN L to VENTMAX
VENTMIN L to VENTMAX
VENTMIN H to VENTMAX
VENTMIN L to VENTMAX
VENTMIN L to Full-Open Closed to Full-Open
VENTMIN H to Full-Open Closed to Full-Open
Occupied
MIN POS L
MIN POS L
MIN POS H
MIN POS L
MIN POS L to Full-Open Closed to Full-Open
MIN POS H to Full-Open Closed to Full-Open
S S t t a a r r t t U U p p
Unoccupied
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Unoccupied
Closed
Closed
Closed
Closed
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