ELEKTROGAS – TECHNICAL MANUAL
12-13
FLOW RATE ADJUSTMENT (Vmax)
Flow rate may be adjusted from 0 cubic meters/h to the maximum (excepting 4", 5", 6" and
brass models).
To perform regulation do the following:
1. Remove coil fastener cap.
2. Using a 4 mm Allen wrench, remove the locking dowel.
3. Located under the locking dowel is the flow regulation screw. Use the Allen wrench to set it.
4. Turn wrench clockwise to decrease or counter-clockwise to increase flow rate (factory
setting is max. flow rate).
5. When adjustment is completed, screw back the locking dowel and cap.
WARNING
Make sure that capacity adjustments are made while burner is operating.
Check the regulation is not changed during reassembly.
Adjustments below 40% of capacity are unadvisable because they may cause
turbulence.
Fig. 8
COIL REPLACEMENT
Before to start with coil replacement, make sure it is the cause of failure.
To perform coil replacement do the following:
1. Make sure an identical one spare part is available.
2. Switch off power supply and remove the box cover.
3. Disconnect the wires from terminal board.
4. Remove coil fastener cap and replace the coil.
5. Reassemble following the inverse sequence.
To maintain a good performance of the system, almost once a year, an external inspection
of the valve is recommended.
Fig. 9
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