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.
