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SECTION 2 – OPTIVIEW CONTROL CENTER
DISPLAY MESSAGES
The Status Bar of the Display contains a Status Line
and, beneath it a Details Line. The Status Line contains
a message describing the operating state of the chill-
er; whether it is stopped, running, starting or shutting
down. The Details Line displays Warning, Cycling,
Safety, Start Inhibit and other messages that provide
further details of the Status Bar messages. The Sta-
tus Messages listed below are displayed on the Status
Line. All other messages are displayed on the Details
Line.
To aid in the meaning of the message, messages are
displayed in different colors as follows:
• Normal Operation messages - Green
• Warning messages - Yellow
• Cycling Shutdown messages - Orange
• Safety Shutdown messages - Red
Status Messages
"SYSTEM READY TO START"
The chiller is shut down but will start upon receipt of a
Local or Remote start signal.
"CYCLING SHUTDOWN – AUTO RESTART"
The chiller is shut down on a CYCLING shutdown.
The cause of the shutdown is still in effect and is dis-
played on the Details line of the Status Bar. The chiller
will automatically restart when the CYCLING condi-
tion clears.
"SAFETY SHUTDOWN – MANUAL RESTART"
The chiller is shut down on a SAFETY shutdown. The
cause of the shutdown is still in effect and is displayed
on the Details line of the Status Bar. The chiller can be
started after the Safety condition clears and the Opera-
tor presses the Clear Fault button on the Home screen.
"SYSTEM PRELUBE"
A chiller start has been initiated and the pre-start lubri-
cation is being performed on the Lead compressor. The
Prelube duration is either 50 seconds or 180 seconds,
as configured with a Microboard Program Switch. The
Pre-lube duration must never be changed by anyone
other than a qualified Service Technician. The stan-
dard Prelube duration is 50 seconds.
128
"SYSTEM RUN"
The chiller is running under the condition described in
the Details Line of the Status Bar.
"SYSTEM COASTDOWN"
The chiller has shut down and the Post-run lubrication
is being performed.
"SYSTEM START INHIBIT"
The chiller is prevented from being started due to the
reason displayed on the Details Line of the Status bar.
"SYSTEM
UNLOADING
DOWN"
Displayed while the Pre-rotation Vanes and Discharge
Valves are closing during a soft shutdown of the entire
chiller. A soft shutdown is performed on the running
compressors for the following shutdowns:
• "Leaving Chilled Liquid Temperature – Low
Temperature"
• "Remote Stop" (ISN, Analog Remote or Digital
Remote)
• "Control Panel-Schedule"
• "Multiunit Cycling-Contacts Open"
• "System Cycling #1-Contacts Open"
• "System Cycling #1-Contacts Open"
• "Discharge #1-Valve Not Closed"
• "Discharge #2-Valve Not Closed"
• Operator initiated at Keypad
When a soft shutdown is initiated on the entire chiller,
a close command is applied to the Pre-rotation Vanes.
If both compressors are running, a Vanes close com-
mand is applied simultaneously to both compressors.
When the Vane Motor Switch for each compressor
closes, indicating its vanes have closed (or 3.5 min-
utes have elapsed, whichever occurs first), a close
command is applied to the Discharge Valve for the re-
spective compressor. When the Discharge Valve limit
switch closes, indicating the valve has closed (or 40
seconds have elapsed, whichever occurs first), the
chiller enters "Coastdown". If both compressors are
running, the chiller will enter "Coastdown" only after
both Discharge Valves have closed or timed out.
FORM 160.79-O3
ISSUE DATE: 11/09/2018
BEFORE
SHUT-
JOHNSON CONTROLS
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