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