AC-SVX003A-EN
113
Table 32. Diagnostics — communication (continued)
Diagnostic
Name
Affects Target Severity
Persistence
Active Modes
[Inactive
Modes]
Criteria
Reset
Level
Comm Loss:
External Ice
Building
Command
Chiller
Warning/
Special Action
Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period. Chiller
shall revert to normal (non-ice building) mode regardless of
last state.
Remote
Comm Loss: Fan
Inverter Fault
Circuit
Warning
Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss: Fan
Inverter Speed
Command
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: Fan
Inverter Speed
Command,
Shared Circuit 1
& 2
Circuit
Warning
Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 15-30 second period. This
is a 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:
Free Cooling
Bypass Valve
Free Cooling
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
Free Cooling
Entering Water
Temperature
Free Cooling
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
Free Cooling
Valve
Free Cooling
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
High Pressure
Cutout Switch -
xy
Cprsr
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
Liquid Line
Pressure
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:
Liquid Line
Temperature
Circuit Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period. Note:
The Subcooled Liquid Line Temperature Sensors are used
for determination of charge and accurate tonnage
predictions
Remote
Comm Loss:
Motor Winding
Temperature 1,
CprsrXY
Cprsr
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
Motor Winding
Temperature 2,
CprsrXY
Cprsr
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss: Oil
Loss Level
Sensor Input
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: Oil
Pressure - xy
Cprsr
Immediate Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss: Oil
Return Line
Solenoid Valve -
xB
Cprsr
Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Diagnostics
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