YZ Systems NJEX 7300L, Instructions & Operating Manual, Page: 93 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 83 NJEX 7300L ver.09042003
SSSSS
ECTION ECTION
ECTION ECTION ECTION
13: 13: 13: 13: 13: 7300L S 7300L S 7300L S 7300L S 7300L S
Y YY
Y YSTEM
STEM
STEM STEM STEM
TTTTT
R RR
R ROUBLESHOO
OUBLESHOO
OUBLESHOO OUBLESHOO OUBLESHOOTING
TING
TING TING TING
How to Use This Section
The recommendations contained in this section should be
used as a preliminary information resource to remedy opera-
tional issues with the NJEX System. It is important to read all of
the definitions and notes prior to initiating work.
Each sub-section contains a description of the alarm
and non-alarm indicators followed by a step-by-step
trouble shooting proceedure.
For sub-sections containing information on alarms and
non-alarm indicators, keep in mind that alarms will
trigger the alarm relay output, and the red LED light on
the display panel will flash. Non-alarm indicators will
display on the LCD, cause the green LED to flach on
and off and generate an entry in the Sentry reports but,
will not trigger the alarm relay.
For Additional Help
Any issue that can not be resolved through the use of
this reference, please contact YZ Technical Service at:
T: 1.800.653.9435 (1.800.NJEX-HELP)
T: 1.936.788.5526, International Calls
F: 1.936.788.5720
Em: Service@yzhq.com
Assistance is available 24 hours a day, 7 days a week,
365 days a year, via the telephone numbers listed above.
SAFETY NO SAFETY NO
SAFETY NO SAFETY NO SAFETY NOTES
TES
TES TES TES
• Always use extreme care when performing mainte-
nance on an odorization system. Check to ensure the
removal of liquid odorant and pressure from the portion
of the system on which work will be performed prior to
removing components or fittings.
• Inspect all tube fittings and valve packings semi-
annually to ensure that liquid odorant remains within
the system.
Step-by-Step Resolution
Using a step-by-step method to resolve issues on the
NJEX System will reduce maintenance time and assit in
returning the odorization system to service quicker.
The following repesent the recommended chronology to
resolve issues:
1. Complete the Troubleshooting Form located in the
Appendix C on page 114. Some of the information
entered on the For the Record Form on page 114 in
Appendix C can be of use.
2. Re-establish the correct pressures.
a. Expansion Tank, 25psi (1.72 Bar)
b.
Bulk Storage Tank, 30-35psi (2.07-2.41 Bar)
c. Actuation Supply, 75psi (5.17 Bar)
d. Pump Actuation, refer to figure 4, System Flow
Schematic, Section 2
3. Resolve alarm issues to the following order:
a.
Tank Level, pages 83
b. Battery, page 84
c. Signal, pages 85
d. Verometer, pages 86
e. Pump, pages 91
Tank Level Alarm
These alarms should only be active with skid mounted
odorizer and tank assemblies furnished pre-assembled by
YZ Systems, Inc. The set points for these alarms are
adjustable in the parameter section of the N-300 controller.
• The Odor Tank Low Level Alarm should be set
between 5% to 25%. This alarm indicates a tank level
at or lower that the alarm set point.
• The Odor Tank High Level Alarm should be set
between 80% to 90%. This alarm indicates a tank
level at or above the alarm set point.
If your system was not purchased as a skid mounted
assembly with a tank from YZ Systems, this alarm
should be set to disabled in the alarm parameters
section of the controller.