JOHNSON CONTROLS
136
FORM 150.72-ICOM6
ISSUE DATE: 08/03/2022
SECTION 7 – UNIT CONTROLS
FIGURE 42 - OPERATION DATA
* Block of information repeats for each system
LD12585
Oper Data Key
Leaving & Chilled Liquid Temps
Ambient Air Temperature
System 1 Discharge & Suction Pressure
*System X Accumulated Hours
*System X Accumulated Starts
Load and Unload Timers
Cooling Demand Steps
(Return Chilled Liquid Control Only)
Temp Rate & Temp Error
(Leaving Chilled Liquid Control Only)
Lead System Indicator
Evaporator Heater Status
Evaporator Water Pump Status
Active Remote Control
Current Feedback One Per Unit
*System X Compressors Status
*System X Run Time
Sys X LLSV & HGSV Status
*System X Condenser Fan Stage
Current Feedback One Per System
*
Print Key
The PRINT key allows the operator to obtain a printout
of real-time system operating data or a history print-
out of system data at the “instant of the fault” on the
last six faults which occurred on the unit. An optional
printer is required for the printout.
Operating Data Printout
Pressing the PRINT key and then OPER DATA key
allows the operator to obtain a printout of current sys-
tem operating parameters. When the OPER DATA key
is pressed, a snapshot will be taken of system operat-
ing conditions and panel programming selections. This
data will be temporarily stored in memory and trans-
mission of this data will begin to the printer. A sample
Operating Data printout is shown below. (Note: Not all
values are printed for all models.)
YORK INTERNATIONAL CORPORATION
MILLENNIUM LIQUID CHILLER
UNIT STATUS
2:04PM 01 OCT 07
SYS 1 NO COOLING LOAD
SYS 2 COMPRESSORS RUNNING 2
OPTIONS
CHILLED LIQUID WATER
AMBIENT CONTROL STANDARD
LOCAL/REMOTE MODE REMOTE
CONTROL MODE LEAVING LIQUID
LEAD/LAG CONTROL AUTOMATIC
FAN CONTROL AMB & DSCH PRESS
CURRENT FEEDBACK NONE
POWER FAILURE RESTART AUTOMATIC
SOFT START ENABLED
EXPANSION VALVE THERMOSTATIC
REMOTE TEMP RESET 4 TO 20 MA
PROGRAM VALUES
DSCH PRESS CUTOUT 570 PSIG
SUCT PRESS CUTOUT 80 PSIG
SUCT PRESS CUT COOLING 42 PSIG
SUCT PRESS CUT HEATING 31 PSIG
LOW AMBIENT CUTOUT 25.0 DEGF
LEAVING LIQUID CUTOUT 25.0 DEGF
ANTI RECYCLE TIME 600 SECS
FAN CONTROL ON PRESS 425 PSIG
FAN DIFF OFF PRESS 125 PSIG
NUMBER OF COMPRESSORS 6
NUMBER OF FANS PER SYSTEM 4
UNIT TRIP VOLTS 3.0
REFRIGERANT TYPE R-22
DEFROST INIT TEMP 41.0 DEGF
DEFROST INITIATION TIME 60MIN
DEFROST TERMINATION TIME 3MIN
BIVALENT HEAT DELAY TIME 30 MIN
REMOTE UNIT ID PROGRAMMED 2
YORK HYDRO KIT PUMPS 1 (410a)
PUMP TOTAL RUN HOURS XXXXX (410a)
UNIT DATA
RETURN LIQUID TEMP 58.2 DEGF
LEAVING LIQUID TEMP 53.0 DEGF
DISCHARGE AIR TEMP 55.3 DEGF
Oper Data Quick Reference List
The following table is a quick reference list for infor-
mation available under the OPER DATA key.
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