York YLUA0078 Installation Operation & Maintenance page 115

Air-cooled scroll condensing units
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FORM 150.73-NM1
ISSUE DATE: 09/04/2020
S Y S
X
S P
=
D P
=
Displays the system Suction and Discharge Pressure of
the time of the fault.
S Y S
X
S U C T
S A T
S U C T
Displays the System Suction Temp and Saturated Suc-
tion Temp when an EEV is installed.
S Y S
X
L L S V
H O T
G A S
S O L
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
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
= X X X . X
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 CUR-
RENT FEEDBACK NONE, no current display will
appear.
JOHNSON CONTROLS
X X X X
P S I G
X X X X
P S I G
=
X X X . X ° F
=
X X X . X ° F
I S
X X X
I S
X X X
S T A G E
X X X
A M P S
A M P S
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
D O W N
N O . 1
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
SECTION 7 – UNIT CONTROLS
S H U T -
( 1 T O 6 )
115
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