York YLUA0248 Series, Installation Operation & Maintenance

Page: 109 / 158

JOHNSON CONTROLS
109
SECTION 7 – UNIT CONTROLS
FORM 150.73-NM2
ISSUE DATE: 09/07/2020
7
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 PER SYSTEM must be programmed under the
options key. If the micro is programmed as one CUR-
RENT FEEDBACK ONE PER UNIT under the pro-
gram key, the display will be the first display prior to the
SYS 1 info. If the micro is programmed for CURRENT
FEEDBACK NONE, no current 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, OPER DATA, 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