RLC-SVU01B-E4
40
ED
384
5C4
Diagnostics
Reset
Level
Hex
Code
Persistence
Severity
Diagnostic Name and
Source
Criteria
NonLatch
a. The chilled water flow switch
input was open for more than
6-10 contiguous seconds.
b. This diagnostic does not de-
energize the evaporator pump
output
c. 6-10 seconds of contiguous
flow shall clear this diagnostic.
d. Even though the pump times
out in the STOP modes, this
diagnostic shall not be called
out in the STOP modes. Note
that this diagnostic will not
light the red diagnostic light on
the EasyView display.
Immediate
Remote
Evaporator Water
Flow Lost
NonLatch
Evaporator water flow was not
proven within 4.25 minutes
(RTAC Rev20 and earlier) or 20
minutes (RTAC Rev 21) of the
Chilled water pump relay being
energized. With SW Rev 17.0
and earlier, the diagnostic will
de-energize the Chilled Water
Pump output. It will be re-
energized if the diagnostic
clears with the return of flow
and the chiller will be allowed
to restart normally (to
accommodate external control
of pump) With SW Rev 18.0 and
later, the pump command
status will not be effected. Note
that this diagnostic will not
light the red diagnostic light on
the EasyView display
Normal
Remote
Evaporator Water
Flow Overdue
Latch
Loss of comm with 75% or
more of the LLIDs configured
for the system has been
detected. This diagnostic will
suppress the callout of all
subsequent comm loss
diagnostics. Check power
supply(s) and power
disconnects - troubleshoot
LLIDS buss using TechView
Immediate
Remote
Excessive Loss of
Comm
