York YCUL0020, Installation, Operation And Maintenance Manual

Page: 124 / 178

JOHNSON CONTROLS
124
Form 150.63-NM9
Issue date: 5/20/2021
SECTION 7 – UNIT CONTROLS
S Y S X S P = X X X X P S I G
D P = X X X X P S I G
Displays the system Suction and Discharge Pressure of
the time of the fault.
S Y S X S U C T = X X X . X ° F
S A T S U C T = X X X . X ° F
Displays the System Suction Temp and Saturated Suc-
tion Temp when an EEV is installed.
S Y S X L L S V I S X X X
H O T G A S S O L I S X X X
Displays whether the System Liquid Line Solenoid or
Hot Gas Solenoid was energized at the time of the fault.
S Y S X F A N S T A G E X X X
Displays the number of Fan Stages in the system active
at the time of the fault.
S Y S X A C T U A L A M P S
= X X X . X A
M P S
Displays the system Amperage (calculated approxi-
mately) at the time of the fault.
For this message to appear, CURRENT FEEDBACK
ONE BeforeSYSTEM must be programmed under the
OPTIONS key. If the microboard is programmed as
one CURRENT FEEDBACK ONE BeforeUNIT un-
der the PROGRAM key, the display will be the first
display before the SYS 1 info. If the microboard is pro-
grammed for CURRENT FEEDBACK NONE, no cur-
rent display will appear.
Displays for System 1 starting with SYS X NUMBER
OF COMPS RUNNING X through SYS X AMPS =
XXX.X VOLTS = X.X will be displayed first, fol-
lowed by displays for System 2.
Further explanation of the above displays is cov-
ered under the STATUS, OBeforeDATA, COOLING
SETPOINTS, PROGRAM, and OPTIONS keys.
Software version
The software version may be viewed by first pressing
the HISTORY key and then the ↓ (DOWN) arrow key.
After pressing the HISTORY key, the display safety
shutdown message will be displayed.
D I S P L A Y S A F E T Y S H U T -
D O W N N O . 1 ( 1 T O 6 )
After the ↓ (DOWN) arrow key is pressed, the software
version will appear.
S O F T W A R E V E R S I O N
C . M 0 8 . 1 4 . 0 2