Diagnostics
RTAF-SVX001A-EN 83
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: Local BAS
Interface
Comm: Local BAS
Interface
Chiller Info NonLatch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Use last valid BAS setpoints.
Diagnostic is cleared when successful communication is
established with the LonTalk LLID (LCIC) or BacNet LLID
(BCIC).
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
Comm Loss: Oil Loss Level
Sensor Input
Comm Loss: Oil Loss Level
Sensor Input
Comm: Oil Level Sensor
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
Comm: 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 -xy
Comm Loss: Oil Return
Solenoid Valve - xy
Comm: Oil Ret Sol Vlv 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: Outdoor Air
Temperature
Comm: Outdoor Air Temp
Chiller Normal Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Comm Loss:
Programmable Relay
Board 1
Comm: Program Relay
Board 1
None Info Latch All
Continual loss of communication between the MP and the
Functional ID has occurred for a 30 second period.
Remote
Table 28. Communications diagnostics (continued)
Diagnostic Name
Affects
Target Severity Persistence
Active
Modes
[Inactive
Modes] Criteria
Reset
Level
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