Diagnostics
RTAF-SVX001K-EN
95
Comm Loss: External Ice Building
Command
Comm: Ext Ice Building Cmd
Ice
Making
Mode
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 Board 1 Relay X
Comm: Fan Board 1 Relay X
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 Board 2 Relay X
Comm: Fan Board 2 Relay X
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
Comm: Fan Inverter Speed Cmd
Circuit
Normal
Latch
All
Continual loss of communication between
the MP and the Functional ID has occurred
for a 15-30 second period.
Remote
Comm Loss: Fan Inverter Speed
Command, Shared Circuit 1 & 2
Comm Loss: Fan Inv Spd Cmd, Shrd Ckt
1&2
Comm: Fan Inv Spd Cmd Ckt 1&2
Circuit
Info
Latch
All
Continual loss of communication between
the MP and the Functional ID has occurred
for a 15-30 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: Free Cooling Entering Water
Temperature
Comm Loss: FC Entering Water Temp
Comm: FC Ent Water Temp
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
Comm: 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: Free Cooling Bypass Valve
Comm: 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 Pump
Comm: Free Cooling Pump
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: Heat Recovery Entering Water
Temperature Sensor
Comm Loss: HR Entering Water Temp
Sensor
Comm: HR Entering Water Temp
Chiller
Info
Latch
All
Continual loss of communication between
the MP and the Functional ID has occurred
for a 30 second period.
Remote
Comm Loss: Heat Recovery Leaving Water
Temperature Sensor
Comm Loss: HR Leaving Water Temp
Sensor
Comm: HR Leaving Water Temp
Chiller
Info
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
Comm Loss: High Pressure Cutout Sw - xy
Comm: High Pres Cutout Sw - 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 Temperature
Comm: Liquid Line Temp
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 RLA Input - xA
Comm: Motor RLA Input - xA
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 Thermostat
Compressor 1A
Comm Loss: Motor Winding Tstat Cprsr 1A
Comm: Motor Tstat Cprsr 1A
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: Motor Winding Thermostat
Compressor 2A
Comm Loss: Motor Winding Tstat Cprsr 2A
Comm: Motor Tstat Cprsr 2A
Circuit
Normal
Latch
All
Continual loss of communication between
the MP and the Functional ID has occurred
for a 30 second period.
Remote
Table 34. Communications diagnostics (continued)
Diagnostic Name
Affects
Target
Severity Persistence
Active
Modes
[Inactive
Modes]
Criteria
Reset
Level