Johnson Controls YORK YK MaxE, Руководство по эксплуатации

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JOHNSON CONTROLS
162
FORM 160.54-O1
optiView Control Center
this shutdown must be evaluated by a
qualified Service Technician prior to
starting the chiller. Starting the chiller
without this evaluation could result in
severe compressor damage. to prevent
the chiller from starting without the
proper evaluation, restart is inhibited
until the temperature increases to
greater than 50.0°F and a special reset
procedure is performed by the Service
technician. the evaluation and reset
procedure are contained in yoRK
Service Manual 160.54-M1.
“THRUST BEARIng - LIMIT SWITCH OPEn”
(All “P and Q” compressors and Style F Chillers with
G or H5-8 Compressors)
The High Speed Thrust Bearing Limit Switch contacts,
connected to TB3-81, have opened. This occurs when
the Bearing position decreases to less than the allowed
position.
this shutdown must be evaluated by a
qualified Service Technician prior to
starting the chiller. Starting the chiller
without this evaluation could result in
severe compressor damage. to prevent
the chiller from starting without the
proper evaluation, restart is inhibited
until the switch contacts have closed
and a special reset procedure is per-
formed by the Service technician. the
evaluation and reset procedure are
contained in yoRK Service Manual
160.54-M1.
“ WATCHDOg – SOFTWARE REBOOT ”
The Microboard’s software Watchdog initiated a Micropro-
cessor reset because it detected that a portion of the chiller
operating Program was not being executed. The result of
this reset is a Safety shutdown and re-initialization of the
Program. This is generally indicative of a severe electrical
power disturbance or impending Microboard Failure. The
chiller can be started after the COMPRESSOR switch is
placed in the Stop-Reset (O) position.
“SURgE PROTECTIOn – EXCESS SURgE”
(Flash Memory Card version C.MLM.01.05.xxx and later)
(Applies only if Surge Protection SHUTDOWN feature
is Enabled)
The Surge Window Count surge events exceeded the
Count Limit setpoint. If the Surge Protection Extended
Run feature is Disabled, the chiller shuts down as soon
as the count exceeds the limit. If the Extended Run
feature is Enabled, this shutdown occurs only if the
count exceeds the limit at completion of the 10 minute
Extended Run period. The chiller can be started after
the COMPRESSOR Switch is placed in the Stop-Reset
(O) position.
MOTOR – LACK OF BEARIng LUBRICATIOn”
(Software version C.MLM.01.14.xxx (and later) or
C.OPT.01.14.306 (and later))
The Operating Hours Since Last Motor Lubrication has
exceeded 1400 hours. This message replaces “Warn-
ing Motor Bearing Lube Required” above. This safety
shutdown remains in effect until the Operator places the
COMPRESSOR Switch in the Stop-reset (O) position
and enters his/her initials, name or user ID in Operator
Access Level (or higher) using the Motor Lube Ac-
knowledge key on the Motor Lubrication Screen. Refer
to the Motor Lubrication Screen for entry instructions.
The date and time of this entry is automatically logged
as the “Date of Last Motor Lubrication” and “Time of
Last Motor Lubrication”. It also resets the “Operating
Hours Since Last Lubrication” to zero. The date this
warning occurs is stored as the “Date of Last Motor
Lubrication Warning or Fault”. With software version
C.OPT.01.16.xxx (and later), this message will only be
displayed if the AUTO LUBE setpoint is disabled. With
this setting, if the SHUTDOWN setpoint is enabled, this
safety shutdown will occur. If SHUTDOWN is disabled,
this warning message will be displayed but the safety
shutdown will not be performed.
Mod “B” soLid state starter
safetY shUtdoWN Messages
“LCSSS SHUTDOWn – REQUESTIng FAULT
DATA...”
The Liquid Cooled Solid State Starter Logic/Trigger Board
has shut down the chiller but the Control Center has not yet
received the cause of the fault from the LCSSS, via the serial
communications link. The LCSSS shuts down the chiller by
opening the Motor Controller LCSSS Stop Contacts (K1
relay located on the Logic/Trigger Board and connected
between TB6-16 and TB6-53 in the Control Center). The
Microboard, in the Control Center, then sends a request for
the cause of the fault to the Logic/Trigger Board over the
serial communications link. Since serial communications
are initiated every 2 seconds, this message is typically
displayed for a few seconds and then replaced with one
of the following fault messages.