York YCUL0045E, Установка, эксплуатация и обслуживание

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JOHNSON CONTROLS
82
FORM 150.63-NM8 (1020)
UNIT CONTROLS
This should only be enabled on European units with soft
start on 2 compressors. This feature modifies the com -
pressor lead/lag to start the compressor(s) furthest from
the control panel last to minimize current inrush. 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 always be ap-
plied to the compressor farthest from the control panel.
This compressor will always start last to minimize cur-
rent inrush with the other compressor running.
On 4 compressor chillers, soft start will always be ap-
plied to the compressor furthest from the control panel
on each system. These compressors will always start
last to minimize current inrush with the other compres-
sors running.
On 6 compressor chillers, soft start will always be ap-
plied to the compressors farthest from the control panel
on each system. Compressors 1 and 2 of each system will
continue to lead/lag per the selected option. The soft start
compressors will always start last to minimize current
inrush with the other compressors running.
x = Compressors
with soft start
Control Panel End
YCUL0211-0255
x
2
1
x
2
1
OPTION 9 – MANUAL OVERRIDE MODE:
This option allows overriding of the daily schedule that
is programmed. MANUAL OVERRIDE MODE – DIS -
ABLED indicates that override mode has no effect.
or
Manual Override Mode is enabled. This is a service
function and when enabled, will allow the unit to start
when shut down on the daily schedule. It will automati-
cally be disabled after 30 minutes.
OPTION 10 – 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 monitor-
ing of all systems by sensing current on the incoming
line. Current input is to J7-12 & J7-4 of the I/O Board.
or
This mode should be selected when an optional 2ACE
module is installed to allow individual current monitor-
ing of each system. SYS 1 input is to J7-12 & J7-4 of the
micro. SYS 2 input is to J9-12 & J9-4 of the I/O Board.
OPTION 11 – SOFT START ENABLE/DISABLE:
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
YCUL0125-0185