Specifications

11JOHNSON CONTROLS
FORM 160.80-EG1 (511)
the Slot Numbers button or the Master Slot Numbers
List found in the Operating Manual. The interval at which
all the parameters are sampled is selected under the
Collection Interval button. The data point minimum and
maximum values may be adjusted closer to increase
viewing resolution.
Programmable:
• Chart Type (select continuous or one screen)
• Collection Interval
• Select
• Data Point Slot Number (1 - 6)
• Data Point Min (1 - 6)
• Data Point Max (1 - 6)
The TREND COMMON SLOTS screen displays the
Master Slot Numbers List of the monitored parameters.
Display Only:
• Slot Numbers
Programmable:
• Page Up
• Page Down
• Print
DISPLAY MESSAGES
The Control Center continuously monitors the operating
system, displaying and recording the cause of any shut-
downs (Safety, Cycling or Normal). The condition of the
chiller is displayed at the System Status line that contains
a message describing the operating state of the chiller;
whether it is stopped, running, starting or shutting down.
A System Details Line displays Warning, Cycling, Safety,
Start Inhibit and other messages that provide further
details of the Status Bar messages. Messages are color-
coded: Green – Normal Operations; Yellow – Warnings;
Orange – Cycling Shutdowns; and Red – Safety Shut-
downs to aid in identifying problems quickly.
Status messages include:
• System Ready To Start
• Cycling Shutdown – Auto Restart
• Safety Shutdown – Manual Restart
• Start Sequence Initiated
• System Run (with countdown timers)
• Start Inhibit
• Slide Valve Closing Before Shutdown
• System Lockout Delay
Run Messages include:
• Leaving Chilled Liquid Control
• Motor Pulldown Limit
• Motor – High Current Limit
Start Inhibit Messages include:
• Anti-Recycle XX min/sec.
• Slide Valve – Position >30%
• Motor Current >15% FLA
• LCSSS – High-Temperature Phase X - Stopped
Warning Messages include:
• Real Time Clock Failure
• Setpoint Override
• Condenser – High Pressure Limit
• Evaporator – Low Pressure Limit
• Freeze Threat From Operating Chiller
• Freeze Threat, Condenser Flow Switch Open
• Low Discharge Superheat Limit
• Low Discharge Superheat Detected
• Maximum Load – Load Limit
• Minimum Load – Load Limit
• Oil – Dirty Filter
• Oil – High Temperature
• Slide Valve Uncalibrated
Routine Shutdown Messages Include:
• Remote Stop
• Local Stop
• Place Compressor Switch In Run Position
Cycling Shutdown Messages Include:
• Multiunit Cycling – Contacts Open
• System Cycling – Contacts Open
• Control Panel – Power Failure
• Leaving Chilled Liquid – Low Temperature
• Leaving Chilled Liquid – Flow Switch Open
• Condenser – Flow Switch Open
• Motor Controller – Contacts Open
• Motor Controller – Loss of Current
• Power Fault
• Control Panel – Schedule