83 RTAC-SVX002A-EN
Diagnostics
Hex
Code
Diagnostic Name and
Source
Severity Persistence Criteria Reset Level
5F8 Comm Loss: Evaporator
Water Pump Control
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
5DD Comm Loss: External
Auto/ Stop
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote Remote
5E9 Comm Loss: External
Chilled Water Setpoint
Special
Mode
Non Latch Continual loss of communication between the MP and the Functional
ID has occurred for a 30 second period. Chiller shall discontinue use of
the External Chilled Water Setpoint source and revert to the next higher
priority for setpoint arbitration
Remote
5DF Comm Loss: External
Circuit Lockout, Circuit #1
Special
Mode
Latch Continual loss of communication between the MP and the Functional ID
has occurred for a 30 second period. MP will nonvolatily hold the lockout
state (enabled or disabled) that was in effect at the time of comm loss.
Remote
5E0 Comm Loss: External
Circuit Lockout, Circuit #2
Special
Mode
Latch Same as Comm Loss: External Circuit Lockout, Circuit #1 Remote
5EA Comm Loss: External
Current Limit Setpoint
Special
Mode
NonLatch Continual loss of communication between the MP and the Functional ID
has occurred for a 30 second period. Chiller shall discontinue use of the
External Current limit setpoint and revert to the next higher priority for
Current Limit setpoint arbitration
Remote
680 Comm Loss: Fan Control
Circuit #1, Stage #1
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
681 Comm Loss: Fan Control
Circuit #1, Stage #2
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
682 Comm Loss: Fan Control
Circuit #1, Stage #3
Normal
Latch Same as Comm Loss: Chilled Water Flow Switch Remote
683 Comm Loss: Fan Control
Circuit #1, Stage #4
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
684 Comm Loss: Fan Control
Circuit #2, Stage #1
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
685 Comm Loss: Fan Control
Circuit #2, Stage #2
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
686 Comm Loss: Fan Control
Circuit #2, Stage #3
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
687 Comm Loss: Fan Control
Circuit #2, Stage #4
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
68C Comm Loss: Fan Inverter
Fault, Circuit #1 or Circuit
#1, Drive 1
Special
Mode
Latch Continual loss of communication between the MP and the Functional
ID has occurred for a 30 second period. Operate the remaining fans as
xed speed fan deck.
Remote
68D Comm Loss: Fan Inverter
Fault, Circuit #1, Drive 2
Special
Mode
Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1, .Drive
1.
Remote
69A Comm Loss: Fan Inverter
Fault, Circuit #2 or Circuit
#2
Special
Mode
Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1, .Drive
1.
Remote
69B Comm Loss: Fan Inverter
Fault, Circuit #2, Drive 2
Special
Mode
Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1, .Drive
1.
Remote
68A Comm Loss: Fan Inverter
Power, Circuit #1 or
Circuit #1 Drive 1 and 2
Normal Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1, .Drive
1.
Remote
698 Comm Loss: Fan Inverter
Power, Circuit #2 or
Circuit #2 or Drive 1
and 2
Normal Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 Drive 1. Remote
68B Comm Loss: Fan Inverter
Speed Command, Circuit
#1 or Circuit #1 Drive 1
and 2
Special
Mode
Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1, .Drive
1.
Remote
699 Comm Loss: Fan Inverter
or Circuit #2 Drive 1 and
2 Speed Command,
Circuit #2
Special
Mode
Latch Same as Comm Loss: Fan Inverter Fault, Circuit #1 or Circuit #1,.Drive
1.
Remote
5D9 Comm Loss: Female Step
Load Compressor 1A
Normal Latch Same as Comm Loss: Chilled Water Flow Switch Remote
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