CG-SVX17D-EN 175
Diagnostics
Sensor Failure Diagnostics
Notes: 1. The following sensor failure diagnostics will not occur unless that input or output is
required to be present by the particular configuration and installed options for the unit.
2. Sensor diagnostics are named by the Functional Name of the input or output that is no
longer sending a valid value to the Main Processor, indicating a sensor failure. Some
LLIDs may have more than one functional output associated with it. Refer to the unit’s
wiring diagrams to relate the occurrence of such sensor failure diagnostics back to the
physical LLID boards that they have been assigned to (bound).
Software Error 1003: Call Trane Service
Software Error 1003: Call Trane Service
Software Error 1003
All
functions
Immediate Latch All
A software monitor has detected a
condition in which there was a
continuous 1 minute period of
compressor operation, with a
misaligned state machine.
Reported if state chart misalignment
occurred inferred from the Capacity
Control, Circuit, or Compressor State
Machines remaining in the Stopping
state for more than 4 minutes with
operating compressors. The presence
of this software error message
suggests an internal software problem
has been detected. The events that led
up to this failure, if known, should be
recorded and transmitted to Trane
Controls Engineering.
Local
fNo Total Heat Recovery
No Total Heat Recovery
No Total Heat Recovery
Heat
Recovery
Normal NonLatch
Unit energized
and THR control
enabled
[Unit de-
energized or THR
disabled]
This diagnostic is only effective if all the
following requirements are met:
1. Unit is running.
2. THR Control is enabled
3. THR entering water temperature is
less than 4°C, or discharge
temperature integral is greater than
Discharge Temperature Integral Limit
in all the energized circuits.
It shall be de-activated when any one
of the following requirements is met:
1. THR entering water temperature is
greater than 5°C, and the discharge
saturated temperature is greater than
minimum discharge saturated
temperature in at least one energized
circuit.
2. THR entering water temperature is
invalid (comm loss or sensor
diagnostic)
3. Total Heat Recovery Control disabled
4. No compressor energized.
Remote
Loss of Charge
Loss of Charge
Loss of Charge
Circuit Immediate Latch
Ckt Energized
[Ckt Not
Energized]
This feature is active on cooling-only
units, not on heat pumps (even during
cooling mode). The circuit must have
EXV superheat control.
Local
Diagnostic Name Affects Severity Persistence
Active
Modes
[Inactive
Modes] Criteria
Reset
Level
Evaporator Entering Water Temp Sensor
Evaporator Entering Water Temp Sensor
Evap Ent Water Temp Sensor
Chiller Normal Latch All Bad Sensor or LLID. Remote
Evaporator Leaving Water Temp Sensor
Evaporator Leaving Water Temp Sensor
Evap Leav Water Temp Sensor
r
Chiller Normal Latch All Bad Sensor or LLID Remote
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