165
YORK INTERNATIONAL
FORM 201.19-NM8 (804)
8
Repetitively pressing the !" Keys allows scrolling
through the information available in the Safety Shut-
down buffer. This is divided into Chill er Data and Indi-
vidual System Data displays as follows:
Chiller Data:
This message indicates the fault that caused the shut-
down; in this case, a high motor current in System 2
was the cause of the shutdown.
This message displays the type of chilled liquid se lect ed
(water or glycol) at the time of the fault.
This display indicates whether standard or low am bi ent
operation was selected at the time of the fault.
This message indicates the type of refrigerant that was
programmed at the time of the fault (R-22 or R407C).
This message indicates the type of Chiller (YCAS or
YCWS) programmed at the time of the fault. (MUST
BE IN YCAS MODE)
This message indicates whether motor current averaging
at start-up is enabled or disabled.
This message indicates whether heat recovery is dis-
abled or enabled. (HEAT RECOVERY MUST BE
DISABLED)
S 1 - 1 C H I L L E D L I Q U I D
W A T E R
S 1 - 2 A M B I E N T C O N T R O L
L O W A M B I E N T
S 1 - 3 R E F R I G E R A N T
R - 4 0 7 C
D I S C H A R G E P R E S S U R E
C U T O U T = 3 9 5 . 0 P S I G
D I S C H A R G E P R E S S U R E
U N L O A D = 3 7 5 . 0 P S I G
S U C T I O N P R E S S U R E
C U T O U T = 4 4 . 0 P S I G
S Y S 1 N O F A U L T S
S Y S 2 H I G H M T R C U R R
S 1 - 4 Y C A S
This message indicates whether electronic or thermo-
static expansion valve is selected for EEV operation.
(ELECTRONIC MUST BE SELECTED) Remote
evaporator systems will be programmed for thermo-
static.
This message indicates the discharge pressure cut-out
programmed at the time of the fault.
This display provides the discharge pressure unload
point, programmed at the time of the fault.
This message displays the suction pressure cut-out pro-
grammed at the time of the fault.
This message indicates the High Ambient Tem per a ture
Cutout at the time of the fault.
This display shows the Low Ambient Cutout pro-
grammed at the time of the fault.
This display shows the Low Leaving Chilled Liquid
Cut out programmed at the time of the fault.
This message shows the programmed %FLA Motor
Current Unload at the time of the fault.
H I G H A M B I E N T T E M P
C U T O U T = 1 3 0 . 0 ° F
L O W A M B I E N T T E M P
C U T O U T = 2 5 . 0 ° F
L E A V I N G L I Q U I D T E M P
C U T O U T = 3 6 . 0 ° F
H I G H M O T O R C U R R E N T
U N L O A D - 1 0 0 % F L A
S 1 - 6 H E A T R E C O V E R Y
D I S A B L E D
S 1 - 5 M O T O R C U R R E N T
A V E R A G I N G D I S A B L E D
S 1 - 7 E X P A N S I O N V A L V E
E L E C T R O N I C
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