Trane Tracer CH530 User Manual page 38

Affects
Diagnostic Name
Target
Suction Refrigerant Circuit
Pressure Transducer
- Circuit 2
Evaporator Circuit
Approach Error -
Circuit 1
Evaporator Circuit
Approach Error -
Circuit 2
Oil Pressure Circuit
Transducer -
Compressor 1A
Oil Pressure Circuit
Transducer -
Compressor 2A
Oil Pressure
System Fault - Circuit
Circuit 1
Oil Pressure
Circuit
System Fault -
Circuit 2
Low Evaporator
Refrigerant Circuit
Pressure - Circuit 1
38
Main Processor Diagnostics
Active Modes
Severity Persistence
[Inactive Modes]
Immediate All
Latch
Immediate Respective circuit
running
Latch
Immediate Respective circuit
running
Latch
Immediate All
Latch
Immediate All
Latch
Starter Contactor
Immediate Latch Energized [all Stop
modes]
Starter Contactor
Immediate Latch Energized [all Stop
modes]
Cprsr Prestart and
Immediate Latch
Cprsr Energized
Criteria
Bad Sensor or LLID
The Evaporator approach temperature for the respective
circuit (ELWT - Evap Sat Temp Ckt x) is negative by
10ºF or more, for 1 minute continuously while the circuit
/ compressor is operating. Either the Evap Leaving
Water Temp sensor, or Evap Suction Rfgt Pressure
Transducer Ckt 1 is in error.
The Evaporator approach temperature for the respective
circuit (ELWT - Evap Sat Temp Ckt x) is negative by
10ºF or more, for 1 minute continuously while the circuit
/ compressor is operating. Either the Evap Leaving
Water Temp sensor, or Evap Suction Rfgt Pressure
Transducer Ckt 2 is in error
Bad Sensor or LLID
Bad Sensor or LLID
The Intermediate Oil Pressure Transducer for this cprsr
is reading a pressure either above its respective
circuit's Condenser Pressure by 15 Psia or more, or
below its respective Suction Pressure 10 Psia or more
for 30 seconds continuously.
The Intermediate Oil Pressure Transducer for this cprsr
is reading a pressure either above its respective
circuit's Condenser Pressure by 15 Psia or more, or
below its respective Suction Pressure 10 Psia or more
for 30 seconds continuously.
a. The Evap Refrig Pressure dropped below 10 Psia just
prior to compressor start (after EXV preposition). b. For
RTUD A/C during early startup period: The Evap Refrig
Pressure fell below the Condenser Pressure ÷ 8,
limited to between 2 and 10 psia. c. For RTWD (or
RTUD, ACFC=none) during early startup period: The
Evap Refrig Pressure fell below 10 Psia. d. For all chiller
types, after early Startup Period expires: The Evap Refrig
Pressure fell below 16 Psia.
(Note: the Startup Period for RTWD is 3 min ; for RTUD
it is between 1 and 5 min for as an inverse function of
the Cond Temp measured at time of circuit startup).
Reset Level
Remote
Remote
Remote
Remote
Remote
Local
Local
Local
CG-SVU02C-E4