York YLAA0285SE, Manual

Page: 148 / 206

JOHNSON CONTROLS
148
FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
SECTION 7 – UNIT CONTROLS
See the
“
Condenser Fan Control” section in the
“
Unit
Operation” section of this IOM for more information.
The fifth message displays current as sensed by the
optional current feedback circuitry. The display reads
out in amps along with the DC feedback voltage from
the module. Current is calculated by:
225A x Actual Volts
5 Volts
Individual displays will be present for each system,
if CURRENT FEEDBACK ONE PER SYSTEM is
programmed under the OPTIONS key. Combined
compressor current for each system is displayed.
Oper Data Quick Reference List
The following table is a quick reference list for
information available under the OPER DATA key.
TABLE 9 – 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
*