Johnson Controls YORK YK MaxE User Manual

JOHNSON CONTROLS
144
FORM 160.54-O1
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 chiller;
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 Status 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
For messages specic to the Variable Speed Drive, Me-
dium Voltage Variable Speed Drive, Solid State Starter
and Medium Voltage Solid State Starter, refer to the ap-
plicable Service Manual as follows: VSD 160.00-M4;
MV VSD 160.00-M6; Solid State Starter 160.00-O2;
MV SSS 160.00-M5.
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 displayed
on the Details line of the Status Bar. The chiller will
automatically restart when the CYCLING condition
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 Operator
moves the COMPRESSOR switch to the STOP-RESET
(O) position.
“SYSTEM PRELUBE”
A chiller start has been initiated and the pre-start lubrication
is being performed. The Prelube duration is either 50 sec-
onds or 180 seconds, as congured with a Microboard Pro-
gram Switch. The Pre-lube duration must never be changed
by anyone other than a qualied Service Technician. The
standard Prelube duration is 50 seconds.
“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. The Coastdown duration varies
according to the microboard and setup. On 031-01730-
000 microboards, it is 150 seconds for electric motor
applications (standard); 15 minutes for Steam Turbine
applications (enhanced), as determined by Program
Jumper JP36. On 031-02430-000/001 microboards,
the duration varies according to the software used.
With Software version C.OPT.01.16.XXX (and later),
the Coastdown duration is determined by the setting
of the COASTDOWN (standard or enhanced) and
COASTDOWN TIME setpoints. If the COASTDOWN
setpoint is set to enhanced (steam turbine applications),
it is 15 minutes. If set to standard (electric motor ap-
plications), it is programmable over a range determined
by the CHILLER STYLE/COMPRESSOR setpoint (for
style F/J7 and G/K6-K7, the range is 240 (default) to
900 seconds. All others, the range is 150 (default) to 900
seconds). With earlier software versions, the duration is
xed at 150 seconds.
“START INHIBIT”
The chiller is prevented from being started due to the
reason displayed on the Details Line of the Status bar.
“VANES CLOSING BEFORE SHUTDOWN”
Displayed while the Pre-rotation Vanes are closing during a
Soft Shutdown. During Soft Shutdowns, the Vanes are driv-
en fully closed prior to shutting down the compressor. When
the Vane Motor End Switch closes, indicating the Vanes
have fully closed (or 3.5 minutes have elapsed, whichever
occurs rst), the Run Signal is removed from the compressor
motor starter and a “System Coastdown” is performed. Soft
Shutdowns are initiated by the following:
1. “Leaving Chilled Liquid – Low temperature”
2. “Remote Stop”
3. “Multi-Unit Cycling – Contacts Open”
4. “System Cycling – Contacts Open”
5. “Control Panel – Schedule”
6. Operator Initiated at Keypad (Flash Memory Card
version C.MLM.01.06.xxx and later)

Johnson Controls YORK YK MaxE Specifications

General

Brand	Johnson Controls
Model	YORK YK MaxE
Category	Chiller
Language	English