Trane CVRC-M-1D, Руководство пользователя

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CVRC-M-1D 105
Diagnostics Tables
Diagnostic Description
Diag
Type
Diag Active
Modes
(Non-Active
Modes)
Cause Help Message
Purge Cprs Suction Temp
Sensor
IFW All
Open or Shorted Sensor
a. IFW to the chiller, MMR to the Purge. Purge Inop: see Purge O &
M Manual
Purge Liquid Level Too High IFW All
a. The level switch at the purge opened for 6 to 10
seconds.
b. IFW to the chiller, MMR to the purge.
Purge Inop: see Purge O &
M Manual
Purge Memory Error III
This diag will be seen in
UCP2 applications of the
Purge Module. This diag will
not be seen in retrofit
applications of the Purge
Module.
IFW All
a. A Shadow RAM memory error was detected.
Compressor starts and hours 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 Purge module. This is an IFW diagnostic to both
the Purge and Chiller.
No Settings Lost
Purge Memory Error Type I:
NOVRAM
This diag should be seen in
both UCP2 and retrofit
applications only.
IFW
On Purge
Power Up or
following a
Type II
Memory
Error diag.
A. On either Purge Module power up or following a
Type II Memory Error, a NOVRAM memory error was
detected. The Purge Module is operating on all
Engineering ROM defaults for all setup parameters.
Check all setup parameters and continue to run purge.
Replace the Purge 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 Purge Module at the
manufacturer since the NOVRAM will not contain valid
data on first power up.
Purge Inop: see Purge O &
M Manual
Purge Memory Error Type II:
Shadow RAM
This diag should be seen in
retrofit applications only.
IFW All
A shadow RAM memory error was detected. The
Purge Module 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 Purge Module.
No Settings Lost
Purge Memory Error Type III:
This diag should be seen in
retrofit applications only.
IFW All
A shadow RAM memory error was detected. The
Purge Module is operating on all last valid values
(pulled from NOVRAM) for all setup parameters. Setup
parameter changes less than 24 hours old pending to
be loaded into NOVRAM were lost. Check all setup
parameters made in the last 24 hours. Compressor
starts and hours 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 Purge Module.
Settings changed in the last
24 hours lost
Purge Memory Error Type IV IFW All
A page timeout error was detected while trying to write
data into EEPROM. There will likely be a recall of
engineering ROM defaults on the next reset or power
transition. Replace the Purge Module as soon as a
replacement is available.
See Purge O & M manual
Purge: Loss of Comm with
Chiller
IFW All
The purge module lost communications with the chiller
module for 15 contiguous seconds.
a. IFW to the chiller, MAR to the Purge.
Check IPC
Wiring/Connections