Trane Tracer TD7 User Manual page 21

Hex
Diagnostic Name
Code
High Differential
1C6
Refrigerant Pressure
High Refrigerant
1C6
Pressure Ratio
High Cprsr
1C2 Rfgt Discharge
Temperature
Low Discharge
18E
Superheat
Compressor
284 Discharge
Temperature Sensor
Evaporator Liquid
27D
Level Sensor
BAS Failed
390 to Establish
Communication
BAS Communication
398
Lost
Low Evaporator Liquid
583
Level
High Evaporator
584
Liquid Level
RLC-SVU006A-E4
Effects
Severity Persistence
Target
Chiller Normal Latch
Chiller Immediate Latch
Chiller Immediate Latch
Chiller Normal Latch
Chiller Immediate Latch
Chiller Normal Latch
Chiller Special
Chiller Special
Chiller Info NonLatch
Chiller Normal Latch
Active Modes
[Inactive Modes]
a. The system differential pressure was
above 160 Psid- trip immediately (normal
shutdown)
Chiller Energized
B The diff pressure was above 152 Psid - trip
in 1 hour
The system pressure ratio exceeded 5.61 for
1 contiguous minute. This pressure ratio is
Service Pumpdown
a fundamental limitation of the compressor.
Only
The pressure ratio is defi ned as Pcond (abs)/
Pevap(abs).
The compressor discharge temperature
exceeded 190°F. This diagnostic will be
suppressed if it occurs during the compressor
run-unload period or after the compressor
All [compressor
has stopped, but a run unload will be
not running or
terminated early as a result. Note: As part
during compressor
of the Compressor High Temperature Limit
run unload]
Mode (aka Minimum Capacity Limit), the
compressor shall be forced loaded as the
fi ltered discharge temperature nears this
trip-point.
While Running Normally, the Discharge
Superheat was less than 12 degrees F +- 1F
Any Running Mode for more than 6500 degree F seconds.
At startup the UCM shall ignore the Discharge
Superheat for 5 minutes.
All Bad Sensor or LLID
All Bad Sensor or LLID
The BAS was setup as "installed" and the
BAS did not communicate with the MP within
15 minutes after power-up. Refer to Section
on Setpoint Arbitration to determine how
At power-up
setpoints and operating modes may be
effected. Note: The original requirement for
this was 2 minutes, but was implemented at
15 minutes for RTAC.
The BAS was setup as "installed" at the MP
and the Comm 3 llid lost communications
with the BAS for 15 contiguous minutes
after it had been established. Refer to
Section on Setpoint Arbitration to determine
All how setpoints and operating modes may
be effected by the comm loss. The chiller
follows the value of the Tracer Default Run
Command which can be previously written
by Tracer and stored nonvolatilely by the MP
(either use local or shutdown).
The liquid level sensor is seen to be
at or near its low end of range for 80
Starter Contactor
contiguous minutes while the compressor
Energized
is running. Design: 20% or less of bit count
[all Stop modes]
corresponding to –21.2 mm or less liquid
level for 80 minutes)
The liquid level sensor is seen to be at or
near its high end of range for 80 contiguous
Starter Contactor minutes while the compressor is running.
Energized (The diagnostic timer will hold, but not clear
[all Stop modes] when the circuit is off). Design: 80% or more
of bit count corresponding to +21.2 mm or
more liquid level for 80 minutes)
Diagnostics
Reset
Criteria
Level
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
Remote
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