12/06/00
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ASCONA ‘A’ & ‘APV’ INSTALLATION INSTRUCTIONS
ELEKTROGAS VM-L GAS VALVE
12.1 Slow Opening and Fast Closing Valve with Hydraulic Damper and Flow - Rate Control
•
Slow opening time : It can be regulated from a fast speed of 4 sec, to a slow speed of 25
sec. (Valves are delivered with a standard opening time of 10 - 12 seconds).
•
Initial fast opening, followed by a slow opening : it can be regulated from 0 to 100 % of
the whole lift.
12.2
A
Opening Time Regulation
Slow opening valves are supplied with an opening time of 10 - 12 seconds.
By fully unscrewing the speed adjustment screw (anti-clockwise) the valve will open quickly in
about 4 seconds.
By gradually turning the speed adjusting screw (clockwise) the opening time can be slowed up
to about 25 - 30 seconds.
NOTE : Remove the red plastic cap to carry out following settings.
12.3
B
Regulation of an Initial Quick - Opening Interval Followed by a Slow - Opening Interval
The initial quick interval can be regulated from 0 to 100 % of the whole valve movement, by
acting on the slow opening adjustment screw.
Valves are supplied with the screws completely closed and therefore with a slow shutter run.
When the screw is in a closed position and then gradually opened (anti-clockwise), each com-
plete turn is equal to an initial part of the fast run of 1 mm.
C
Flow Regulation
The flow regulation screw (located inside screw B) stops the shutter, which can be stopped at
any point of the run. When the regulation screw is in the closed position (shutter stopped
against the valve seat with zero flow) and is gradually opened (anti-clockwise) the shutter can
be raised 0.8 mm at each complete turn.
Summary of Contents for ASCONA A
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