baltur comist 36 Instructions Manual page 128

The monobloc DUNGS Model MB-ZRDLE is made up of:
a) Minimum gas pressure switch (3)
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 re-
lease 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 manoeuvring 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 "downstream" 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 manometer 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 1st and 2nd opening positions of the valve. Regulation of the rapid
release andof the hydraulic brake modify the 1st and 2nd positions 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
REGULATING THE FIRST POSITION (1
Loosen the screw with the protruding cylindrical head (1) Give the knob (10), which regulates the output for
the 2nd flame, at least one turn in the direction of the arrow which indicates the +sign (anti-clockwise direc-
tion).
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 adequately 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 2nd flame. The complete run of 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 1st and 2nd flame, remember to
tighten home the screw (1) to avoid the regulator moving out of the position
at which it has been set.
VALVE INLET MAX PRESSURE
MODEL
MB ...B01 S 20
COMBINED DUNGS GAS VALVE (monobloc)
MOD. MB-ZRDLE ... B01
ST
(PE) mbar
360
0006080093 ed2006/07
FLAME)
FLAME)
ND
ADJUSTTABLE OUTLET PRESSURE
FROM THE STABILIZER (PA) mbar
from 4 to 20
126 / 132
0002910311
13/01/2004
DETAILS OF TERMINAL BOARD
FOR VALVE MB-ZRDLE
1st POSITION
2nd POSITION
TYPE OF GAS
Gas maturale / L.P.G.