YZ Systems NJEX 7300L, Instructions & Operating Manual, Page: 25 / 126

YZ Systems, Inc. • 3101 Pollok Drive • Conroe, Texas • USA • 77303 • P: 936.788.5593 • F: 936.788.5720
Page 15 NJEX 7300L ver.10012003
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ECTION ECTION ECTION ECTION ECTION
2: 2:
2: 2:
2: S S
S S
S
Y YY Y YSTEM STEM STEM STEM STEM
I I I
I
I
NST NST NST NST NSTALLA ALLA ALLA ALLA ALLATION TION TION TION TION
C A C A C A C A C AUTION: UTION: UTION: UTION: UTION:
Excessive tubing lengths should be avoided.
Installation of the NJEX Odorization system should
be as close to the point of injection and Odorant
Storage Tank as possible. Maximum tubing length
should not exceed 15' (4.5 meters) with the tubing
size maintained as indicated in this manual. If longer
tubing lengths are required consult YZ Systems
Technical Services at; 800.653.9435 or
1.936.788.5593.
5. Connect the odorant supply source to the odorant
inlet manifold with the recommended 1/4" stain-
less steel tubing, figure 9. A tank isolation valve
should be incorporated between the storage tank
and this connection, figure 18.
6. Connect a regulated source of natural gas, or
inert actuation gas source, of 75 psi (5.17 Bar)
supplied by the NJEX system owner, to the
NJEX gas filter inlet fitting using a dielectric union,
figure 9.
Note: An actuation gas source pressure of 75 psi
(5.17 Bar) should be adequate in most installations.
In applications where the actuation gas supply has
a high water content and/or a low hydrocarbon dew
point, additional actuation gas filtration or heating of
the 7300L system may be necessary. Bottled
nitrogen can also be used during cold operating
conditions to avoid condensation in the actuation
gas supply line. NEVER use air for step 6.
7. Connect a regulated source of natural gas, inert
gas, or Instrument Quality Air of 75 psi (5.17 Bar)
supplied by the NJEX system owner,
to back of
the System Enclosure, using a dielectric union .
8. Connect the pipeline port of the odorant dis-
charge manifold to a back pressure regulator,
and then connect to the pipeline connection
using a dielectric union and check valve, figure 18,
refer to the back pressure regulator diagram,
page 106.
Figure 18
O
DORANT
D
ISCHARGE
M
ANIFOLD
P
IPELINE
P
ORT
O
DORANT
I
NLET
C
ONNECTION
75
PSI
(5.17 B
AR
) R
EGULATED
A
CTUATION
G
AS
75
PSI
(5.17 B
AR
) R
EGULATED
A
CTUATION
G
AS
(OPTIONAL
INSTRUMENT
AIR)