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YORK INTERNATIONAL
FORM 150.52-NM2 (1001)
4.5 HISTORY KEY
If a safety shutdown occurs on the chiller, a compre-
hensive list of operating and programmed settings data
is stored by the microprocessor. The information is
stored at the instant of the fault, regardless of whether
the fault caused a lockout to occur. This information is
not affected by power failures or manual resetting of a
fault lockout.
The microprocessor stores data for up to 6 safety shut-
downs on 2-System units and 4 safety shutdowns on 3-
or 4-compressor units. Once this limit is reached, a fur-
ther shutdown will cause the oldest set of data to be
discarded in favor of storing the new shutdown data.
The Safety Shutdowns are numbered from 1 to 6 with
number 1 always being the most recent.
If a remote printer is not connected, pressing the His-
tory key allows the operator to locally scroll through
information relating to the stored safety shutdowns on
the control panel display.
4.4 OPERATING DATA - REMOTE PRINTOUT
The follow text shows a typical example printout ob-
tained by pressing the Operating Data (OPER DATA)
key with an optional printer attached. In this case an
example is shown for a YCAR 2-system Chiller. YCAR
3-system models and YCAR 4-system models provide
similar printouts for the appropriate number of systems:
YORK INTERNATIONAL CORPORATION
MILLENNIUM
RECIP CHILLER
UNIT STATUS
2:04PM 25 AUG 00
SYS 1 NO COOLING LOAD
SYS 2 COMPRESSOR RUNNING
OPTIONS
CHILLED LIQUID WATER
AMBIENT CONTROL STANDARD
REFRIGERANT TYPE R-22
PROGRAM VALUES
DSCH PRESS CUTOUT 399 PSIG
DSCH PRESS UNLOAD 375 PSIG
SUCT PRESS CUTOUT 44 PSIG
HIGH AMBIENT CUTOUT 130.0 °F
LOW AMBIENT CUTOUT 25.0 °F
LEAVING LIQUID CUTOUT 36.0 °F
MOTOR CURRENT UNLOAD 100 %FLA
ANTI RECYCLE TIME 600 SECS
LOCAL/REMOTE MODE REMOTE
LEAD/LAG CONTROL AUTOMATIC
UNIT DATA
LEAVING LIQUID TEMP 49.0 °F
RETURN LIQUID TEMP 58.2 °F
MIXED LIQUID TEMP 51.3 °F
COOLING RANGE 42.0 +/- 2.0 °F
AMBIENT AIR TEMP 74.8 °F
LEAD SYSTEM SYS 2
EVAPORATOR PUMP ON
EVAPORATOR HEATER OFF
ACTIVE REMOTE CONTROL NONE
SOFTWARE VERSION C.RCP.09.00
SYSTEM 1 DATA
COMPRESSORS STATUS OFF
RUN TIME 0-0-0-0 D-H-M-S
MOTOR CURRENT 0 AMPS 0 %FLA
SUCTION PRESSURE 125 PSIG
DISCHARGE PRESSURE 131 PSIG
OIL PRESSURE 130 PSID
SUCTION TEMPERATURE 68.4 °F
OIL TEMPERATURE 68.8 °F
SAT SUCTION TEMP 71.8 °F
SUCTION SUPERHEAT 3.4 °F
COMPRESSOR LOAD STAGE 0
COOLER INLET REFRIG 44.6 °F
LIQUID LINE SOLENOID OFF
HOT GAS BYPASS SOLENOID OFF
CONDENSER FAN STAGE OFF
SYSTEM 2 DATA
COMPRESSORS STATUS ON
RUN TIME 0-0-15-26 D-H-M-S
MOTOR CURRENT 104 AMPS 87 %FLA
SUCTION PRESSURE 57 PSIG
DISCHARGE PRESSURE 233 PSIG
OIL PRESSURE 218 PSIG
SUCTION TEMPERATURE 42.9 °F
OIL TEMPERATURE 102.8 °F
SAT SUCTION TEMP 31.7 °F
SUCTION SUPERHEAT 11.2 °F
COMPRESSOR LOAD STAGE 2
COOLER INLET REFRIG 23.6 °F
LIQUID LINE SOLENOID ON
HOT GAS BYPASS SOLENOID ON
CONDENSER FAN STAGE 3
DAILY Schedule
S M T W T F S * = HOLIDAY
MON START=00:00AM STOP=00:00AM
TUE START=00:00AM STOP=00:00AM
WED START=00:00AM STOP=00:00AM
THU START=00:00AM STOP=00:00AM
FRI START=00:00AM STOP=00:00AM
SAT START=00:00AM STOP=00:00AM
HOL START=00:00AM STOP=00:00AM
The System Cooler Inlet Refrigerant
Temperature will be printed if the unit
is in R-407C mode.
Micro Panel
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