18
IOM-181 | MODEL: ECOSYSTEM™ WITH XLT CONTROLLER | REV: C
13839 West Bellfort Street, Sugar Land, TX 77498
welker.com
Service Department: 281.491.2331
2.3 Start-Up Procedures
Odorant Supply Tank
1.
Open emergency bypass valves B1 and B2 (
Figure 3
,
Figure 4
,
Figure 5
,
Figure 6, Figure 7
,
Figure 8
, or
Figure 9
).
2.
Fill the odorant supply tank in accordance with company policy and procedure, taking care not to exceed 80% of the
total volume of the supply tank.
Never fill the odorant supply tank above 80% of its capacity. Allow at least 20% for product expansion, should the tank be exposed
to increased temperatures.
3.
Check the odorant supply tank for leaks and repair as necessary.
4.
Close emergency bypass valves B1and B2 (
Figure 3
,
Figure 4
,
Figure 5
,
Figure 6, Figure 7
,
Figure 8
, or
Figure 9
).
Natural Gas Supply Regulator
5.
As necessary, open any valves between the outlet on the natural gas pipeline and the F-5 inlet.
6.
Open F-5 inlet valve E and F-5 outlet valve F (
Figure 10
).
7.
Apply natural gas to the valve section to pressurize the natural gas supply regulator (
Figure 3
,
Figure 4
,
Figure 5
,
Figure 6,
Figure 7
,
Figure 8
, or
Figure 9
).
The pneumatic supply regulator comes factory-set to the setting required to operate the solenoid(s).
8.
If applicable, open regulator outlet valve C (
Figure
8 or
Figure 9
).
9.
If applicable, open volume bottle valve D (
Figure 11
). The volume bottle will fill with the conditioned natural gas.
Only systems with ³∕8" tubing are equipped with a volume bottle.
Valve Configuration
10.
Slowly open the valves indicated in Table 3.
Table 3: Start-Up Valve Orientation
Valve Letter
Valve Description
Reference Figures
A
Blanket Pressure Outlet
3–9
J1 & J2
Blanket Pressure Inlet
1 & 2
K1 & K2
Odorized Gas Outlet
1 & 2
Once odorized gas outlet valves K1 and K2 are open, gas may free flow from the odorant supply tank to the pipeline until pressure in
the system equalizes. Note that free flow will last only for a short time and over-odorization will not occur.
11.
If applicable, slowly open any valves between the odorized gas outlet on the odorant supply tank and the pipeline.
12.
Check for leaks and repair as necessary.
