baltur BTG 15P Manual De Mantenimiento, Uso E Instalación página 41

COMBINED DUNGS GAS VALVE (monobloc) MOD. MB-ZRDLE...B01
The monobloc DUNGS Model MB-ZRDLE is made up of:
a) Minimum gas pressure switch (3) and maximum gas pressure
(12)
b) Gas filter (6)
c) Pressure regulator (stabilizer) (2)
d) Safety valve (incorporate in the pressure regulator) which opens
and closes rapidly (4)
e) Principle valve with two positions (lst flame and 2nd flame) which
opens slowly with an adjustable initial rapid release and rapid closing
(8).
Before proceeding with regulation, read the following:
1) It is possible to reach the gas filter (6) in order to clean it, by
removing one of the two side closing plates.
2) The pressure stabilizer can be regulated (see table) by manoeu-
vring it's regulating screw. it can be reached by sliding the cover (2)
to one side. The complete run from the minimum to the maximum
position and viceversa is about 60 turns. Do not force against
the end-of-the-run position. Before starting up the burner, give
the screw at least 15 turns towards the + sign. Around the screw
are arrows with symbols which indicate the sense of rotation to
increase the pressure (in a clockwise direction) and the sense
of rotation to decrease pressure (in an anti-clockwise direction).
The stabilizer hermetically closes from "upstream" to "downstre-
am" when there is no gas flow. Different springs to obtain different
pressure values from those descrive above are not foreseen.
To regulate the pressure stabilizer, connect a water mano-
meter to the rubber tube holder installed on the valve, to tap
Pa (7), in correspondence with the stabilizer exit.
3) It is not necessary to regulate the rapid opening and closing
safety valve (4).
4) Principle valve (8).
Regulating the initial rapid release effects the 1
opening positions of the valve. Regulation of the rapid re-
lease andof the hydraulic brake modify the 1
sitions of the valve in proportion to the output regulated.
To carry out regulation, unscrew the protection cover (11) and use
the back part of it as a tool to turn the pin.
Rotation in a clockwise direction = minor rapid release
Rotation in an anti-clockwise direction = greater rapid release
VALVE INLET MAX PRESSURE
MODEL
MB ...B01 S 20
and 2
st
and 2
st nd
(PE) mbar
360
0006080895_200903
REGULATING THE FIRST POSITION (1
Loosen the screw with the protruding cylindrical head (1) Give the
knob (10), which regulates the output for the 2
turn in the direction of the arrow which indicates the +sign (anti-
clockwise direction).
Rotate the regulating ring (9) of the 1st flame in the
direction indicated by the arrow towards the + sign
(anti-clockwise direction). As an indication, this should be a
little more than two turns from the end-of-the-run position.
Then, when the lst flame only is alight, rotate adequa-
tely ring (9) in order to obtain the gas delivery desired.
The complete run of the output regulator, from the - position to the
+ position, and viceversa, is about three and a half turns. Rotation
of the regulator in a clockwise direction, determines a reduction in
delivery; rotation in an anticlockwise direction increases delivery.
REGULATING THE SECOND POSITION (2
Loosen the screw with the protruding cylindrical head (1).
Rotate the knob (10) in the direction indicated by the arrow for the + sign
(anti-clockwise direction) as much as considered necessary in order to
obtain the gas delivery required for the 2
the regulator from the - position to the + position, and viceversa, is about
FIVE turns. Rotate in a clockwise direction to determine a reduction
in delivery and in an anti-clockwise direction to increase it.
After regulatiny._the gas delivery for the 1
remember to tighten home the screw (1) to avoid the regulator
moving out of the position at which it has been set.
nd
DETAILS OF TERMINAL BOARD
po-
FOR VALVE MB-ZRDLE
ADJUSTTABLE OUTLET PRESSURE
FROM THE STABILIZER (PA) mbar
from 4 to 20
17 / 20
N° 0002910311
REV.:13/01/2004
FLAME)
ST
flame, at least one
nd
FLAME)
ND
flame. The complete run of
nd
and 2 flame,
st nd
1st POSITION
2nd POSITION
TYPE OF GAS
Gas maturale / L.P.G.
E
N
G
L
I
S
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