Data Logging - York YVAA Installation Operation & Maintenance

Air-cooled screw liquid chillers, air-cooled screw liquid chillers with variable speed drive
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SECTION 7 - OPERATION
If there are other internal errors that occur the follow-
ing message is displayed until the user presses the En-
ter key.
FLASH ERROR XX
FLASH ERROR XX
PRESS  TO CONTINUE
PRESS  TO CONTINUE
16. After the update is completed and the controller
reboots, the keypad and display returns to full
functionality. The SD card or USB drive may be
left in place for datalogging or else replaced with
another device dedicated for datalogging.
Never reset or power down the chiller
until the update is finished. Interrupting
the flash update procedure can corrupt
the program file and render the control
board inoperative.

Data logging

A 2GB SD card (p/n 031-03466-000) may be inserted
into the 03478 IPUII SD card slot to record the chiller
operating parameters at 5 second intervals. The data is
stored in a folder named RMYYYYMM where YYYY
is the year and MM is the month the data was recorded.
The controller creates a file for each day within this
folder with the format YYYYMMDD.csv where DD
equals the day of the month in addition to the YY to the
year and MM to the month fields. For example: The
folder named RM201503 is a folder created in March
of 2015. Within this folder would be a file for each
day of that month that the datalogging is running. If a
review of the History Report shows that an abnormal
event occurred on March 3rd at 2:05pm, the user can
import the 20150303.csv file into Excel and look at
the system parameter details leading up to the 2:05pm
event.
112
(X)
(x)
To start the Data Logging, insert the SD card into the
SD card slot on the 03478 board. The label on the SD
card must be facing outwards. If using the USB drive
insert it into the USB Port on the IPU3 board
Once the SD card or USB drive is inserted and the unit
is powered up, press the OPTIONS key. Then press the
Down Arrow key to advance to the DATA LOG. Next
press the Right Arrow key to select ON then press the
ENTER key to start the Data Log. A 2GB SD card will
hold about one month's worth of data. A smaller card
may be used that will hold less data but must be tested
for compatibility. The controller operating system does
not support SD cards larger than 2GB. When the SD
card becomes full, the oldest date file is automatically
deleted and a new day log file is written in its place.
To stop the data logging and retrieve the SD card, press
the OPTION key and then the Down Arrow key to dis-
play the DATA LOG TO FLASHCARD option and
then use the Right Arrow key to select OFF then press
the ENTER key.
Again, follow the JCI Safety Directives to stop the
chiller, power off the unit and open the control cabinet
door to retrieve the SD card.
You may then copy the files to a PC for analysis or
email the file to someone. The files are saved as a CSV
format which can be read by Excel. Once the file is
read in to Excel, you can hide unrelated columns or
plot preferred parameters to analyze the data.
Invalid number of compressors warning
The INVALID NUMBER OF COMPRESSORS
SELECTED warning will occur after the VSD has
been initialized, if no jumpers are installed or if more
than 1 jumper is installed, Number of Compressors
Select message is displayed. The following warning
message will be displayed indefinitely.
UNIT WARNING:
INVALID NUMBER OF COMPRESSORS SELECTED
Form 201.47-ICOM1
Issue date: 17/11/2022
Follow all JCI Safety Directives when
inserting or removing the SD card or USB
drive since the device is located inside the
control cabinet.
JOHNSON CONTROLS

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