Elster J123 Training manual

J123
Commissioning Instructions
INSTALLATION CONDITIONS
Body pressure range: 0
- 4 Bar
Temperature range:
-20ºC to +70 ºC
OPERATING INS
TRUCTIONS
•
Ensure that this product is suitable for the chosen application.
•
Installation, adjustment and maintenance by authorised, trained personnel only.
•
When being fitted to an appliance, refer to the appliance manufacturers instructions.
•
Ensure that the installation provides adequate protection to prevent over pressurisation.
•
Traffic, wind and earthquake loadings should be considered when specifying the installation.
•
The unit should be protected from the decomposition of unstable fluids.
FITTING UNI
TS INTO PIPEWORK
1.
The unit should not be installed in a corrosive environment.
2.
The ambient temperature (surface temperature) should be within the limits stated on the
regulator catalogue.
3.
Check the maximum allowable pressure on the regulator nameplate against the installation
specification.
4.
Remove the protection from the inlet and outlet ports.
5.
Ensure that the installation pipework is thoroughly clean.
6.
The direction of gas flow must be the same as the arrows on the regulator body. See Fig. 1.
7.
Install regulator into pipework.
8.
It is advised that a slam shut device is fitted in the installation to protect downstream equipment.
INSTALLATION OF IMPULSE LINE
1.
Remove the plastic protection plug.
2.
Connect the impulse line (½"), using a jointing compound approved to national standards, and
lead to a point downstream not less than fifteen times the nominal pipe diameter from the
outlet. See Fig. 2.
INSTALLATION OF VENT LINE. (If Required)
1.
Remove breather cover from regulator top case / cover.
2.
Connect the vent line (½"),
using a jointing compound approved to national standards, and lead
to atmosphere in accordance with national standards. Ensure that no water can penetrate vent
pipe. See Fig. 3.
3.
If vent connection is to be used for top loading or other similar use refer to your own installation
instructions.
SETTING THE OUTLET PRESSURE.
1.
Turn off inlet and outlet valves.
2.
Remove top cap.
3.
For L.P. 50mm and 80mm unit insert ½" square socket extension piece into square hole, or flat
blade screwdriver into slot in spring adjuster. See Fig. 4.
4.
For M.P. 50mm and 80mm unit, slacken locknut on spring adjusting stem and connect suitable
spanner (24mm A/F) to hexagon of spring adjusting stem. See Fig. 5.
5.
For 100mm unit connect suitable spanner (27mm A/F) to hexagon of spring adjusting nut. See
Fig. 6.
6.
Turn spring adjustment anticlockwise to reduce pressure on loading spring.
7.
Slowly turn on inlet supply.
8.
Increase loading on spring by turning spring adjustment clockwise until the required outlet
pressure, plus approximately 2.5mbar, is obtained.
9.
Commission downstream appliance(s).
10.
Trim the outlet pressure of the regulator, if necessary, when normal
working flow rates have been achieved.
11.
Replace the top cap.
Warning!
Incorrect installation, adjustment, modification, operation and maintenance may
cause injury or damage.
Read the instructions before use. This control must be installed in accordance with the rules in
force.
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Contacts
United Kingdom Germany USA
Elster Jeavons Elster GmbH Elster American Meter
Paton Drive, Tollgate Business Park, Steinern Str. 19 - 21 2221 Industrial Road
Beaconside, Stafford, Staffs ST16 3EF 55252 Mainz-Kastel Nebraska City, NE 68410-6889
T [phone] T [phone] T [phone]
F [phone] F [phone] F [phone]
www.elster-instromet.com www.elster-instromet.com www.elster-meterservices.com
[e-mail] [e-mail]
C1232EN02
A2.7.2012
Subject to change without prior notice All rights reserved
Subject to change without prior notice All rights reserved
J123: Commissioning Instructions
Fig. 6
Fig. 7
Fig. 8
Fig. 9
IF THE REQUIRED OUTLET PRESSURE CAN NOT BE ACHIEVED WITH THE SPRING FITTED.
1.
Choose a loading spring from the catalogue that will give the required outlet pressure range.
For L.P. 50mm and 80mm units: See Fig. 7.
2.
Remove top cap.
3.
Fully unscrew and remove the spring holder.
4.
Remove loading spring.
5.
Insert new loading spring.
6.
Screw spring holder back in place ensuring that spigot is
located in loading spring.
7.
Adjust the outlet pressure, as described earlier,
until the required setting is achieved.
8.
Replace top cap.
For M.P. 50mm and 80mm units: See Fig. 8.
1.
Remove top cap.
2.
Slacken locknut on spring adjusting stem.
3.
Turn spring adjuster anticlockwise to reduce loading on spring.
4.
Unscrew spring adjusting bush.
5.
Remove top spring holder and loading spring.
6.
Insert new loading spring.
7.
Place top spring holder over spring ensuring that spigot is located in loading spring.
8.
Screw spring adjusting bush into top cover making sure that the end of the stem is located in
the recess in the top spring holder.
9.
Adjust the outlet pressure, as described earlier, until the required setting is achieved.
10.
Tighten locknut.
11.
Replace top cap.
For 100mm units: See Fig. 9.
1.
Remove top cap.
2.
Turn spring adjusting nut anticlockwise to reduce loading on spring.
3.
Remove 8 hexagon head screws that secure top cover to top diaphragm case. Carefully lift off
top cover assembly and gasket.
4.
Remove loading spring.
5.
Install new loading spring over spring location washer in centre of diaphragm.
6.
Replace gasket and top cover assembly and secure with 8 hexagon head screws.
7.
Adjust the outlet pressure, as described on earlier, until the required setting is found.
8.
Replace top cap.