Trane Sintesis RTAF Installation, Operation And Maintenance Manual page 70

Air-cooled chillers
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Diagnostics
Main Processor Diagnostics
Table 27.
Main processor diagnostics
Diagnostic
Affects
Name
Target
Severity Persistence
AFD%RLA
Cprsr
Normal
Feedback - xA
BAS
Info and
Communication
Chiller
Special
Lost
Action
BAS Failed to
Establish
Info and
Communication
Chiller
Special
BAS Failed to
Action
Establish Comm
Chiller Service
Chiller
Warning
Recommended
Compressor
Discharge
Refrigerant
Temperature
Sensor - xy
Cprsr
Immediate Latch
Cprsr Disch Rfgt
Temp Sensor -
xy
Disch Rfgt Temp
Sensor - xy
Condenser
Refrigerant
Pressure Sensor
Condenser Rfgt
Circuit
Immediate Latch
Pressure Sensor
Cond Rfgt
Pressure Sensor
Emergency Stop
Feedback Input
Chiller
Immediate Latch
Emergency Stop
Evap Water
Pump 1 Svc
Recommended
Chiller
Info
Evap Water
Pump 1 Svc
Recom
Evap Water
Pump 2 Svc
Recommended
Chiller
Info
Evap Water
Pump 2 Svc
Recom
Evaporator
Circuit
Immediate Latch
Approach Error
70
Active
Modes
[Inactive
Modes]
Criteria
Latch
All
Out-Of-Range Low or Hi or bad LLID
The BAS was setup as "installed" at the MP and the Lontalk LCIC lost
communications with the BAS for 15 contiguous minutes after it had
been established. Refer to Section on Setpoint Arbitration to determine
how setpoints and operating modes may be affected by the comm loss.
The chiller follows the value of the Tracer Default Run Command which
NonLatch
All
can be previously written by Tracer and stored nonvolatilely by the MP
(either use local or shutdown).
operational for BacNet Communication interface (BCIC) and only
operational with a LonTalk Communication interface (LCIC) if so
configured by the BAS or Tracer system.
The BAS was setup as "installed" and the BAS did not communicate with
the Lontalk LCIC within 15 minutes after chiller controls power-up.
Refer to Section on Setpoint Arbitration to determine how setpoints and
NonLatch
At power-up
operating modes may be affected. Note that this diagnostic is never
operational for BacNet Communication interface (BCIC) and only
operational with a LonTalk Communication interface (LCIC) if so
configured by the BAS or Tracer system.
Service
Chiller service interval time has elapsed. Chiller service is
Latch
Messages
recommended.
Enabled
All
Bad Sensor or LLID
All
Bad Sensor or LLID
EMERGENCY STOP FEEBBACK INPUT is open. An external interlock has
All
tripped. Time to trip from input opening to unit stop shall be 0.1 to 1.0
seconds.
Service
Latch
Messages
Pump service recommended as service interval hours have elapsed. Remote
Enabled
Service
Latch
Messages
Pump service recommended as service interval hours have elapsed. Remote
Enabled
The Evaporator approach temperature for the respective circuit (ELWT
Respective
– Evap Sat Temp Ckt x) is negative by more than 10°F for 1 minute
circuit
continuously while the circuit / compressor is operating. Either the Evap
running
Leaving Water Temp sensor or Evap Suction Rfgt Pressure Sensor Ckt
x is in error.
Note that this diagnostic is never
RTAF-SVX001A-EN
Reset
Level
Remote
Remote
Remote
Remote
Remote
Remote
Local
Remote

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