YZ Systems Milton Roy • 201 Ivyland Road • Ivyland, Pennsylvania • USA • 18974 • P: 281.362.6500 • www.yzsystems.com
Page 73
NJEX EUR ver. 08-2021
Section 12: System Maintenance
Valve V4
Figure 195
Figure 196
Note:
This should be inspected by the maintenance
technician on a regular basis. Caution should always
be used as odorant may escape if the expansion tank
has been allowed to filled with odorant. Odorant fill of
the expansion tank is not a normal or recommended
operating condition.
Low Pressure Relief Adjustment
The overflow protector incorporates a low pressure
relief in the cap assembly for the purpose of maintain-
ing the maximum expansion tank pressure at 25 psi
(1.72 Bar)
.
To test and adjust follow these steps:
1. With valve
V6
open,
figure 196
, slowly open valve
V4
,
figure 195
, until gas begins discharging at
exhaust port.
2. Close valve
V4
and see where pressure stabilizes
which should be
1.72 Bar.
3. If adjustment is needed:
a) First, loosen adjustment lock nut, located
on top of the overflow protector. To increase
pressure in the tank, turn the adjustment
screw in, or to the right. To lower pressure
tank, turn the adjustment screw out, or to the
left.
b) Tighten lock nut.
c) Repeat until the desired pressure of
1.72 Bar
is obtained as described in in step 2 above.
Adjustment Screw
Adjustment Lock Nut
Valve V6
Overflow
Protector
Summary of Contents for NJEX 6300G
Page 1: ...NJEX 6300G 7300G N A T U R A L G A S O D O R I Z A T I O N S Y S T E M...
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Page 3: ...NJEX 6300G 7300G Instruction Operating Manual Version 08 2021...
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