JOHNSON CONTROLS
92
FORM 150.62-NM8 (1020)
UNIT CONTROLS
The third message indicates the system, and whether the
liquid line solenoid or EEV pilot solenoid and hot gas
solenoid are being turned ON by the I/O Board. Please
note that hot gas in not available for system 2, so there
is no message pertaining to the hot gas solenoid when
system 2 message is displayed.
The fourth message indicates what stage of condenser
fan operation is active. For YCAL0014 to YCAL0080
unless a low ambient kit is added, only stages 1 and 3
will be used to cycle the condenser fans. However, stage
2 may be shown in this display without a low ambient
kit added, but it has no effect. YCAL0090
through
YCAL0134 have 3 or 4 fan stages as standard.
See Condenser Fan Control in Section 2 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:
`
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.
225A • Actual Volts
5
Volts
* Block of information repeats for each system
TABLE 19 – OPERATION DATA
LD14543
Current Feedback One Per System
*System X Condenser Fan Stage
Sys X LLSV & HGSV Status
*System X Run Time
*System X Compressors Status
Current Feedback One Per Unit
Active Remote Control
Evaporator Pump Contacts & Heater Status
Lead System Indicator
Temp Rate & Temp Error
(Leaving Chilled Liquid Control Only)
Cooling Demand Steps
(Return Chilled Liquid Control Only)
Load and Unload Timers
*System X Accumulated Starts
*System X Accumulated Hours
R-407c Only
SYS 2 Cooler Inlet Refrigerant Temp
EEV Only
SYS 2 EEV Output & Suction Superheat
EEV Only
SYS 2 Suction and SAT Suction Temp
System 2 Discharge & Suction Pressure
R-407c Only
SYS 1 Cooler Inlet Refrigerant Temp
EEV Only
SYS 1 EEV Output & Suction Superheat
EEV Only
SYS 1 Suction and SAT Suction Temp
System 1 Discharge & Suction Pressure
Ambient Air Temperature
Leaving & Chilled Liquid Temps
Oper Data Key
Содержание YCAL0014E Series
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