Figure 26 - Sales Order Screen - York YMC2 Operation And Maintenance

Centrifugal liquid chillers with r-134a or r-513a refrigerant
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FORM 160.84-OM1
ISSUE DATE: 9/21/2017
TABLE 12 - SAFETY SHUTDOWN MESSAGES (CONT'D)
MESSAGE
This Safety Shutdown is set when Motor Housing Temperature is greater than or equal to 185°F
MOTOR – HIGH
(85°C). This fault is released when Motor Housing Temperature is less than 158°F (70°C). The
HOUSING
chiller can be started when the condition is released and the
TEMPERATURE
OptiView™ panel CLEAR FAULTS key is pressed.
This safety shutdown is set when the Compressor Model field entered on the Setpoints – Setup
–Sales Order screen does not conform to the format expected. The format is defined below and
the data can be found on the compressor nameplate if it ever needs re-entry in the control:
The "Sales Order - Invalid Compressor Model" safety shutdown is set when any of the following
are true:
SALES ORDER -
INVALID
COMPRESSOR
MODEL
The following table shows all valid impeller / motor combinations.
The fault is released when the values have been corrected. The chiller can be restarted after the
CLEAR FAULTS key is pressed.
(Applies only if Surge Protection SHUTDOWN feature is Enabled)
SURGE PROTECTION –
The Surge Window Count surge events exceeded the Count Limit setpoint. The chiller shuts
EXCESS SURGE
down as soon as the count exceeds the limit. The chiller can be started after the CLEAR FAULT
key is pressed.
JOHNSON CONTROLS
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
1,2 3 - 4
5
6
7
8
9 - 10 11 12 13 14 15 :Position
• MOTOR is anything other than M2 or M6
• MOTOR REV is anything other than 'C'
• Character other than '-' between position 3 and 4
• SS/LS IMP DIAM is anything other than 164, 174, 186, 197, 205, 218, 233, 246, 275,
295 or 331
• SS/LS ROTATION is anything other than 'F'
• SS/LS IMP REV is anything other than the character 'A'
• SS/LS FLOW REV is anything other than the character 'C'
• Motor Model is Invalid
• Invalid impeller / motor combination
COMPRESSOR
197FA
M1
205FA
M1
218FA
M1
233FA
246FA
275FA
295FA
331FA
233FA / 205RA
M1
275FA / 241RA
331FA / 291RA
DESCRIPTION
:CODE
MOTOR
M2
M2
M2
M2
M4
M2
M4
M6
M4
M6
M4
M6
M6
M2
M2
M4
M6
M4
M6
3
105

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