York YCAV0157 Installation Operation & Maintenance page 231

If any motor temp sensor is being
ignored, (Selectable under Unit Set-
up Mode), that sensor's value will be
displayed as XXXXX.
The next key press indicates the % of compressor load-
ing and status of the economizer solenoid as determined
by the operating frequency.
SYS 1 COMPRESSOR
ECONOMIZER SOLENOID = XXX
XXX indicates whether the economizer solenoid is
either ON or OFF.
The next key press displays the liquid level in the flash
tank and an indicator of the % the Flash Tank Feed
Valve is open.
SYS 1 FLASH TANK
FEED VALVE PERCENT OPEN = XXX.X %
The next key press displays the system suction superheat
and an indicator of the % the Flash Tank Drain Valve
is open.
SYS 1 SUCTION SUPERHEAT = XXX.X °F
DRAIN VALVE PERCENT OPEN = XXX.X %
The next key press displays the system fan stage and the
status of the compressor heater.
SYS 1 CONDENSER FANS ON = X
COMPRESSOR HEATER = XXX
X = the number of fans ON. XXX indicates either the
heater is ON or OFF.
The next key press displays the system run time in days,
hours, minutes, and seconds.
SYS 1 RUN TIME
XX DAYS XX HOURS XX MINUTES XX SECONDS
The next key press displays the status of several system
signals.
SYS 1 RUN SIGNALS RELAY = XXX
RUN PERM = XXX SOFTWARE = XXX
XXX indicates either ON or OFF.
JOHNSON CONTROLS
SYSTEM DATA KEYS 1-4 (CON'T)
SPEED = XXX.X %
LEVEL = XXX.X %
SYSTEM 2 - 4 DATA Key Operation
These keys function the same as the SYSTEM 1 DATA
key except that it displays data for system 2 through
4.
On a 2 compressor system, the SYSTEM 3 and SYS-
TEM 4 data keys will display the following messages:
SYS 3 DATA NOT AVAILABLE
SYS 4 DATA NOT AVAILABLE
FORM 201.21-NM1 (1223)
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