Trane CVRC-M-1D, Руководство пользователя

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CVRC-M-1D 103
Diagnostics Tables
Low Oil Flow MMR Compressor
Energized The differential oil pressure switch remained open for more than
20 contiguous seconds compressor A. See Troubleshooting
Service Bulletin
Low Oil Temp MAR All Running
Modes The oil temperature dropped below it’s adjustable low oil temp.
cutout. (“Instantaneous trip” but consistent with the analog input
filtering function.) Automatic Reset of the MAR diag shall occur
5° F (2.8C) above the cutout setpoint. See Troubleshooting
Service Bulletin
CVHE-SB-32
Max Acceleration Setpts. Error IFW All The redundant Maximum Acceleration settings did not agree for
30 contiguous seconds. (Continue to use the previous value for
the 30 second timeout.) When this diagnostic occurs the
affected Starter Module shall use 6 seconds as a default until
either the UCM is reset or, if the redundant settings agree again,
the starter module can go back to using the actual setting. Review Max
Acceleration Set Up
Max Pumpout Rate Exceeded
(Prg) IFW All IFW to the chiller, MAR to the Purge Purge Inop: See Purge
O & M Manual
Max Pumpout Rate Exceeded-Svc
(Prg) IFW All IFW to the chiller, MAR to the Purge. Purge Inop: See Purge
O & M Manual
Memory Error Type I: NOVRAM MMR On UCM
Power Up
or following
a Type II
Memory
error diag. On UCM either power up or following a Type II Memory Error a
NOVRAM memory error was detected. The UCM is operating on
all Engineering Rom defaults for all setup parameters. Check all
setup parameters and continue to run chiller. Replace the Chiller
Module as soon as a replacement is available. Note: It is
expected that this diagnostic will be detected on the very first
power up of the Chiller Module at the Manufacturer since the
NOVRAM will not contain valid data on first power up. Call Service to Check
all Settings
Memory Error Type II: Shadow
RAM IFW All A Shadow RAM memory error was detected. The UCM is
operating on all last valid values (pulled from NOVRAM) for all
setup parameters. No setup parameter changes were pending
to be loaded into NOVRAM, a complete recovery of all setup
parameters was made and there is no need to check unit setup
parameters. Compressor starts and hour were lost for not more
than the last 24 hours. This is expected to be an isolated event
and repair or replacement is not required. If this diagnostic does
occur repeatedly, then replace the Chiller Module. No Settings Were Lost
Memory Error Type III IFW All A Shadow RAM memory error was detected. The UCM is
operating on all last valid values (pulled from NOVRAM) for all
setup parameters. No setup parameter changes were pending
to be loaded into NOVRAM, a complete recovery of all setup
parameters was made and there is no need to check unit setup
parameters. Compressor starts and hour were lost for not more
than the last 24 hours. This is expected to be an isolated event
and repair or replacement is not required. If this diagnostic does
occur repeatedly, then replace the Chiller Module. Settings Changed in the
Last 24 Hours Lost.
Memory Error Type IV IFW All A page timeout error was detected while tying to write data into
EEPROM. There will likely be a recall of engineering ROM
defaults on the next reset or power transition. Replace the chiller
module as soon as a replacement is available. Call service to check all
settings.
Momentary Power Loss MAR All Running
Modes
(Start Mode,
e.g. Before
Transition) Power Interruption. Determine Cause of
Power Interruption
Diagnostic Description Diag
Type
Diag. Active
Modes
(Non-Active
Modes)
Cause Help Message