York YCAS Installation Operation & Maintenance page 166

Air-cooled liquid chillers
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Micro Panel Contents
L O C A L / R E M O T E
L O C A L
This message shows whether remote or local com mu -
ni ca tions was selected at the time of the fault.
L E A D / L A G
C O N T R O L
A U T O M A T I C
This message displays the lead/lag selection pro-
grammed at the time of the fault.
L C H L T
=
4 4 . 1
R C H L T
=
5 2 . 9
This message indicates the leaving and return chilled
liquid temperature at the time of the fault.
M C H L T
=
4 3 . 8
This message indicates the mixed water temperature
at the time of the fault. A mixed water sensor may be
present when multi-unit sequencing is utilized. If no
mixed water temperature sensor is installed, the dis play
will not appear.
S E T P O I N T
R A N G E
=
+ / -
This message displays the programmed chilled liquid
setpoint and deviation (control range) programmed at
the time of the fault.
A M B I E N T
7 7 . 6 ° F
This message indicates the outdoor Ambient Air Tem-
per a ture at the time of the fault.
L E A D
S Y S T E M
S Y S T E M
N U M B E R
This message indicates which system was in the lead at
the time of the fault.
166
M O D E
° F
° F
° F
=
4 4 . 0 ° F
2 . 0 ° F
A I R
T E M P
I S
1
E V A P
P U M P
E V A P
H E A T E R
This message indicates the status of both the evap o ra tor
pump signal from the microprocessor and the evap o -
ra tor heater.
A C T I V E
R E M O T E
N O N E
This message indicates that a remote device such as a
Remote Control Center, an ISN controller, or an oth er
device sending a PWM signal for tem per a ture or current
reset is over rid ing control points programmed through
the keypad or default mi cro pro ces sor setpoints.
System Data:
Following the Common Data is a sequence of twen ty
information displays which are given twice, fi rst for
Sys tem 1, then for System 2, System 3 and fi nally
System 4. In each example, "#" is used to indicate
System number:
S Y S
#
C O M P R E S S O R
I S
This message indicates whether the compressor on this
system was ON or OFF at the time of the fault.
S Y S
#
R U N
1 - 3 - 4 8 - 1 7
This message shows the Run Time logged on the sys tem
since the last compressor start, in Days (D), Hours (H),
Minutes (M), and Seconds (S).
S Y S
#
M O T O R
1 3 5
A M P S
This message indicates the compressor motor current in
amps and as a percentage of Full Load Amps.
FORM 201.19-NM6 (804)
I S
O N
I S
O F F
C T R L
O N
T I M E
D - H - M - S
C U R R E N T
7 8 %
F L A
YORK INTERNATIONAL

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