York YCAV0569 Installation Operation & Maintenance page 191

FORM 201.21-NM2 (616)
SYSTEM SAFETIES (FAULTS) (CON'T)
High Flash Tank Level Cutout Fault
The Flash tank level Cutout prevents the system from
running when the liquid level in the flash tank is too
high. The safety will be ignored for the first 15 seconds
of system operation.
A fault will occur if the tank level is greater than 85%
for 10 seconds.
Below is a sample Status fault display fault message:
SYS X YYYYYYYY HIGH FLASH TANK LEVEL
X indicates the system and YYYYYYY indicates the
system is in a "FAULT" condition and will restart when
8
the 120 second anti-recycle timer times out or "LOCK-
OUT" and will not restart until the operator clears the
fault using the keypad.
System Control Voltage Cutout Fault
The System Control Voltage Cutout alerts the operator
the 115VAC Control voltage to one of the systems is
missing. This could be due to a system fuse that has
been removed or is blown. The affected system will
fault and shut down immediately when the 115VAC
supply is lost.
The safety will "not" shut down a system if the Unit
Switch is OFF, which electrically removes the 115VAC
to "all" systems. The safety is only used to indicate a
situation where a single system is missing the 115VAC.
The safety will not cause a lockout and the system fault
will reset when power is returned. A sample message
is shown below:
SYS X YYYYYYYY CONTROL VOLTAGE
X indicates the system and YYYYYYY indicates the
system is in a "FAULT" condition and will restart when
the fault clears or "LOCKOUT" and will not restart until
the operator clears the fault using the keypad.
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JOHNSON CONTROLS