• They must be installed with the arrow (on
the body of the device) facing towards
the user appliance. Except DN 200 they
will function equally effectively if installed
vertical. They must not be installed upside
down (with the coil underneath).
• During installation take care not to allow
debris or scraps of metal to enter the
device.
• If the device is threaded check that the
pipeline thread is not too long; overlong
threads may damage the body of the
device when screwed into place. Do not
use the coil for leverage when screwing
into position; use the appropriate tool.
• If the device is fl anged check that the inlet
and outlet counterfl anges are perfectly
parallel to avoid unnecessary mechanical
stresses on the body of the device. Also
calculate the space needed to fi t the seal.
If the gap left after the seal is fi tted is
too wide, do not try to close it by over-
tightening the device’s bolts.
• Always check that the system is gas-tight
after installation.
• Except DN 200 in the version with fl ow
regulator (EVPF... - EVPCF...) unscrew the
nut (12) and set the wanted value of the
gas fl ow by the regulation screw (13). Then
rescrew the nut (12) in the original position.
CALIBRATIONS (DN 15 ÷ DN 150)
• To regulate the opening speed of the
obturator operate on the screw (16).
This screw has not limit, the opening
speed increases gradually screwing
clockwise the screw (16).
• To regulate the rapide stroke operate on the
screw (15). Screwing counterclockwise
till the limit, the opening of the valve will
be slow at fi rst, screwing it clockwise you
get a fi rst phase of speed opening and a
second slow one.
• To regulate the fl ow operate on the screw
(14). Screwing it clockwise in order to
decrease the fl ow, counterclockwise in
order to increase it.
ELECTRICAL CONNECTIONS
• Before making electrical connections, check
that the mains voltage is the same as
the power supply voltage stated on the
product label.
• Disconnect the power supply before wiring.
• Wire the connector with cable type:
EVP... DN 15 ÷ DN 25
EVPC... DN 25 ÷ DN 50
EVP... DN 200
H05RN-F 3X0,75mm², Ø outside from 6,2 to 8,1 mm
EVP... DN 32 ÷ DN 150
H05RN-F 3X1 mm², Ø outside from 8,3 to 9,5 mm
taking care to ensure that the device has IP65
protection.
• Connect the power supply to terminals 1 and
2 and the ground wire to terminal
.
IMPORTANT: with tension 12 Vdc and
24 Vdc with energy saving connector CN-
21... observe the polarity.
The coil is also suitable for permanent power
supply. In case of continuous duty, it is
absolutely normal for the coil to heat up. The
coil should not be touched with bare hands
after it has been continuously powered for
more than 20 minutes. Before maintenance
work, wait for the coil to cool or use suitable
protective equipment.
