ELEKTROGAS – Technical Sheet EE175 - 0117
13-16
ELECTRICAL CONNECTION (IEC 730-1)
- Using a screwdriver remove the
plug from the actuator.
- Unscrew the gland-nut (G) and
remove the washer (F) and
grommet (E).
- To remove the terminal block (A)
from the plug housing (C), remove
the gasket (B) and extract the screw
(D) completely, then insert a flat
screwdriver into the slot located on
edge and pull it.
- Insert the cable in to the gland-nut,
washer, grommet and then into the plug housing.
- Connect power cables to the terminal block according to printed designation.
- Pull back the cable and insert the terminal block into the housing.
- Screw back the gland-nut, make sure that the grommet is locked on the cable.
- Insert the screw and gasket into the housing and screw back the plug on the coil.
It is recommended not to power the actuator before it is correctly install on the valve, because
serious damage can result.
The continuous service (100% ED) causes inevitable actuator heating, depending of
working environment. This situation is absolutely normal and does not have to worry. To
improve the actuator cooling, install the valve allowing free air circulation.
In order to avoid injury, after a prolonged period of operation, avoid direct contact with
the actuator.
WARNING
Make sure all gaskets are used properly.
After mounting perform a leak test with the valve open (max. testing pressure: 1.5 Pmax)
and a functional test (at normal working pressure).
FLOW RATE ADJUSTMENT (Vmax – only VMH 7-8 DN65 - DN80)
Flow rate may be adjusted from 0 cubic meters/h to the maximum (only 2”½-3”).
1) Remove the cap on the bottom of the valve.
2) Using a 6 mm Allen wrench, set the flow regulation screw. Turn wrench clockwise to
decrease or counter-clockwise to increase flow rate (factory setting is max. flow rate). Reducing
the flow is easier when valve is not powered.
3) When adjustment is completed, screw back the cap.
Fig. 7