York YCAS0130 manual Chiller Data, Be In Ycas Mode, Disabled

Repetitively pressing the Keys allows scrolling through the information available in the Safety Shut- down buffer. This is divided into Chiller Data and Indi- vidual System Data displays as follows:

Chiller Data:

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

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.

S 1 - 1 C H I L L E D L I Q U I D

W A T E R

This message displays the type of chilled liquid selected (water or glycol) at the time of the fault.

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

This display indicates whether standard or low ambient operation was selected at the time of the fault.

S 1 - 3 R E F R I G E R A N T

R - 2 2

This message indicates the type of refrigerant that was programmed at the time of the fault (R-22 or R407C).

S 1 - 4 Y C A S

This message indicates the type of Chiller (YCAS or YCWS) programmed at the time of the fault. (MUST

BE IN YCAS MODE)

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

This message indicates whether motor current averaging at start-up is enabled or disabled.

S 1 - 6 H E A T R E C O V E R Y D I S A B L E D

This message indicates whether heat recovery is dis- abled or enabled. (HEAT RECOVERY MUST BE

DISABLED)

FORM 201.19-NM1 (204)

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

This message indicates whether electronic or thermo- static expansion valve is selected. (ELECTRONIC

MUST BE SELECTED FOR EEV OPERATION). (Remote barrel applications are programmed for thermostatic).

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

This message indicates the discharge pressure cut-out programmed at the time of the fault.

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

This display provides the discharge pressure unload point, programmed at the time of the fault.

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

This message displays the suction pressure cut-out pro- grammed 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

This message indicates the High Ambient Temperature Cutout at the time of the fault.

L O W A M B I E N T	T E M P
C U T O U T = 2 5	. 0 ° F

This display shows the Low Ambient Cutout pro- grammed at the time of the fault.

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

This display shows the Low Leaving Chilled Liquid Cutout programmed at the time of the fault.

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

This message shows the programmed %FLA Motor Current Unload at the time of the fault.

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YORK INTERNATIONAL 153