York YCAL0043E Series, Installation Operation & Maintenance

Page: 92 / 184

YORK INTERNATIONAL
92
FORM 150.62-NM7 (103)
This should only be enabled on European units with soft
start on 2 compressors. This feature modifi es the com-
pres sor lead/lag to start the compressor(s) fur thest from
the control panel last to minimize cur rent in rush. These
compressors will be equipped with a soft starter.
Soft start is only viewable under OP-
TIONS key and must be programmed
from the Service Mode.
On 2 compressor chillers, soft start will al ways be ap plied
to the compressor farthest from the control pan el. This
compressor will always start last to min i mize cur rent
inrush with the oth er com pres sor run ning.
On 4 compressor chillers, soft start will always be ap plied
to the compressor furthest from the control pan el on
each system. These compressors will always start last
to minimize current inrush with the other com pres sors
running.
On 5 compressor chillers, soft start will always be ap-
plied to the compressor furthest from the control pan el
on each system. Compressors 1 and 2 will continue to
lead/lag per the selected option. The soft start com-
pres sors will always start last, to minimize current inrush
with the other compressors running.
On 6 compressor chillers, soft start will always be ap-
plied to the compressors farthest from the control pan el
on each system. Compressors 1 and 2 of each system
will continue to lead/lag per the selected op tion. The soft
start compressors will always start last to min i mize cur rent
inrush with the other compressors running.
Option 10 – Manual Override Mode:
T
his option allows overriding of the daily schedule that is
pro grammed. MAN U AL OVER RIDE MODE – DIS ABLED
in di cates that over ride mode has no effect.
or
Manual Override Mode is enabled. This is a ser vice func-
tion and when enabled, will allow the unit to start when
shut down on the daily schedule. It will au to mat i cal ly be
dis abled after 30 minutes.
Option 11 – Current Feedback Options Installed:
This mode should be selected when the panel is not
equipped with current sensing capability.
or
This mode should be selected when an optional 2ACE
Module is installed to allow combined current mon i tor ing
of all systems by sensing current on the incoming line.
Current input is to J8-5 of the micro.
or
This mode should be selected when an optional 2ACE
module is installed to allow individual current mon i tor ing
of each system. SYS 1 input is to J8-5 of the micro. SYS
2 input is to J8-6 of the micro.
Option 12 – Soft Start Enable/Disable:
Unit Controls
S O F T S T A R T
E N A B L E D
C U R R E N T F E E D B A C K
N O N E
C U R R E N T F E E D B A C K
O N E P E R U N I T
C U R R E N T F E E D B A C K
O N E P E R S Y S T E M
M A N U A L O V E R R I D E M O D E
D I S A B L E D
M A N U A L O V E R R I D E M O D E
E N A B L E D
F A N C O N T R O L
A M B I E N T & D S C H P R E S S
Condenser fans are controlled by ambient temperature
and discharge pressure. This mode must be chosen if
the discharge pressure transducers are
not installed.
x x
1 1
x = Compressors
with soft start
Control Panel End
x
x
1
1
YCAL0287-0317
YCAL0117-0173
x = Compressors
with soft start
Control Panel End
YCAL0347-0377
x
2
1
x
2
1
YCAL0197-0253
x
2
1
x
2
1
x = Compressors
with soft start
Control Panel End
YCAL
x
1
x
2
1