4. Wait 500ms
5. Turn on all the fan line contactors, each fan stage
output, 100ms apart.
Fan Speed Inhibit
Fans all running on slow speed is the maximum fan
stage when:
n
The remote fan full speed inhibit contact is closed.
n
If a fan inhibit time period is set under the
'SCHEDULE/ADVANCE DAY' key, and the time of
day is in the 'INHIBIT ON' zone.
1
-
13
Form 201.26.OI1(11/09)
YLAE Systems with 2 fans
1-MF1
1-MF2
2-MF1
2-MF2
0
OFF
OFF
1
SLOW
OFF
3
SLOW
SLOW
4
FAST
FAST
Fan Operation
Stages
Systems with 3 fans
1-MF1
1-MF2 & 1-MF3
2-MF1
2-MF2 & 2-MF3
0
OFF
OFF
1
SLOW
OFF
2
OFF
SLOW
3
SLOW
SLOW
4
FAST
FAST
Fan Operation
Stages
Systems with 4 fans
1-MF1
1-MF2 & 1-MF3
1-MF4
2-MF1
2-MF2 & 2-MF3
2-MF4
0
OFF
OFF
OFF
1
SLOW
OFF
OFF
2
OFF
SLOW
OFF
3
SLOW
SLOW
SLOW
4
FAST
FAST
FAST
Stages
Fan Operation
YLAE Fan Stages
STAGES
FAN OUTPUTS 1
FAN OUTPUTS 2
FAN OUTPUTS 3
=AMB-XTB7-8 (YLAE SYS1)
=AMB-XTB7-9 (YLAE SYS1)
=AMB-XTB7-10 (YLAE SYS1)
=AMB-XTB10-8 (YLAE SYS2)
=AMB-XTB10-9 (YLAE SYS2)
=AMB-XTB10-10 (YLAE SYS2)
0
OFF
OFF
OFF
1
ON
OFF
OFF
2 *
OFF
ON
OFF
3
ON
ON
OFF
4
ON
ON
ON
*Stage 2 is skipped on systems with 2 fans.
