Elster J48 Commissioning Instructions

J48
2½"- 6"
Commissioning Instructions
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
OPERATING INSTRUCTIONS
•
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.
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.
FITTING UNITS INTO PIPEWORK
1. Remove the protection from the inlet and outlet ports.
2. Ensure that the installation pipework is thoroughly clean.
3. The direction of gas flow must be the same as the arrows on the regulator body.
See Fig. 1.
4. Install regulator into pipework.
INSTALLATION OF EXTERNAL IMPULSE LINE (IF REQUIRED)
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 ten 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 OF OUTLET PRESSURE
1. Turn off inlet and outlet valves.
2. Remove top cap.
3. For L.P. 65mm 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 H.P. 65mm and 80mm unit and L.P. 100mm and 150mm 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 and 150mm H.P. 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.