Table 92: Safety shutdown messages
Message Description
SALES ORDER
- INVALID
COMPRESSOR
MODEL
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:
Motor
Motor
rev
SS/LS Imp. Dia.
SS/LS
rotation
SS/LS
Imp.
Dia.
SS/LS
flow
rev
HS Imp. Dia. 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
197FA M1 M2
205FA M1 M2
218FA M1 M2
233FA M2 M4
246FA M2 M4 M6
275FA M4 M6
295FA M4 M6
Single stage
331FA M6
233FA / 205RA M1 M2
275FA / 241RA M2 M4 M6
Two stage
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.
133
YMC
2
Mod B with OptiView
™
Control Center
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