York YCAS0373SC, Installation Operation & Maintenance

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144 YORK INTERNATIONAL
FORM 201.19-NM5 (804)
The System Evaporator Inlet Refrig-
erant Tem per a ture will be printed if
the unit is in R407C mode.
SUCTION SUPERHEAT 3.4 DEGF
SAT DISCHARGE TEMP 74.5 DEGF
DISCHARGE SUPERHEAT 6.3 DEGF
SLIDE VALVE STEP 0
EEV OUTPUT 0.0 %
EVAPORATOR INLET REFRIG 44.6 DEGF
LIQUID LINE SOLENOID OFF
ECONOMIZER TXV SOLENOID OFF
CONDENSER FAN STAGE OFF
COMPRESSOR HEATER ON
WYE-DELTA RELAY 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 DEGF
DISCHARGE TEMPERATURE 145.5 DEGF
OIL TEMPERATURE 102.8 DEGF
SAT SUCTION TEMP 31.7 DEGF
SUCTION SUPERHEAT 11.2 DEGF
SAT DISCHARGE TEMP 112.1 DEGF
DISCHARGE SUPERHEAT 33.4 DEGF
SLIDE VALVE STEP 70
EEV OUTPUT 35.6 %
EVAPORATOR INLET REFRIG 23.6 DEGF
LIQUID LINE SOLENOID ON
ECONOMIZER TXV SOLENOID ON
CONDENSER FAN STAGE 3
COMPRESSOR HEATER OFF
WYE-DELTA RELAY ON
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
Micro Panel Contents
4.5 HISTORY KEY
If a safety shutdown occurs on the chiller, a com pre -
hen sive 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 af fect ed by power failures or manual resetting of a
fault lockout.
The microprocessor stores data for up to 6 safety shut-
downs. Once this limit is reached, a fur ther shut down
will cause the oldest set of data to be discarded in favor
of storing the new shutdown data. The Safety Shut downs
are numbered from 1 to 6 with num ber 1 always being
the most recent.
If a remote printer is not connected, pressing the His-
to ry key allows the operator to locally scroll through
in for ma tion relating to the stored safety shutdowns on
the con trol panel display.
If a remote printer is connected, pressing the History key
will cause data from the last 6 shutdowns to be trans-
mitted from the mi cro pro ces sor to the remote print er.
The printout will begin with the most recent fault which
occurred. This does not affect the stored data and as
many prints as desired may be tak en. See Sec tion 4.7
for a HISTORY printout sample.
4.6 FAULT HISTORY DATA –
LOCAL DISPLAY MESSAGES
When the History key is pressed, the following mes sage
will appear:
To select a Safety Shutdown, press the appropriate key
on the numeric key pad, then press Enter. Remember that
the most recent fault information is stored as shut down
No. 1. After the ENTER Key is pressed, a mes sage in-
dicating the time and date of the Fault Shut down will
appear:
S H U T D O W N O C C U R R E D
5 : 5 9 A M 2 9 N O V 0 2
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 )