Trane Ascend ACR Series, Installation, Operation And Maintenance Manual

Page: 100 / 112

100 AC-SVX001A-EN
Table 28. Diagnostics — communication (continued)
Diagnostic
Name
Affects
Target
Severity
Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level
Comm Loss:
Cond Fan
Enable Shared
Ckt1&2
None Info Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. This is an info warning, as it is conceivable
that the circuit may run without the center shared
fan deck working if there are many other coils/fans
on the circuits
Remote
Comm Loss:
Cond Rfgt
Pressure Ckt1
Circuit Immediate Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Cond Rfgt
Pressure Ckt2
Circuit Immediate Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Condenser Fan
Enable Ckt1
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Condenser Fan
Enable Ckt2
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Discharge
Temperature
Ckt1
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Discharge
Temperature
Ckt2
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Drive Cooling
BP Valve Ckt1
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Note: The same diagnostic is used for comm
loss with the stepper motor driven bypass valve in
the Drive Cooling Temp Control = DCTC or DCTW
configurations as for comm loss with the “Drive
Cooling 3-Way Valve Command Outputs Ckt1 &2”
dual analog I/O llid in the TWAV configuration
Remote
Comm Loss:
Drive Cooling
BP Valve Ckt2
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. Note: The same diagnostic is used for comm
loss with the stepper motor driven bypass valve in
the Drive Cooling Temp Control = DCTC or DCTW
configurations as for comm loss with the “Drive
Cooling 3-Way Valve Command Outputs Ckt1 &2”
dual analog I/O llid in the TWAV configuration
Remote
Comm Loss:
Drive Cooling
IL Valve Ckt1
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Drive Cooling
IL Valve Ckt2
Circuit Normal Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second period
Remote
Comm Loss:
Drive Cooling
Sply Temp Ckt1
Circuit Norma Latch All
Continual loss of communication between the MP and
the Functional ID has occurred for a 30 second
period. While this diagnostic is active, the associated
Drive Cooling ByPass Valve shall be commanded fully
closed
Remote
D Diia ag gn no ossttiiccss