baltur COMIST 180, Instructions For Use Manual

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ENGLISH
MAINTENANCE
At the end of the heating season, it is good practice to clean the gas
and light oil filters, the combustion head (disk, insulators, nozzles),
the combustion air passages and the photoelectric cell (UV).
It is advisable to use wooden or plastic instruments to clean the
nozzle passages. Nozzle should be replaced after 12 months’ use.
UV CELL
If flame detection is carried out with the UV cell, the following should
be taken into consideration.
Even the slightest greasiness will compromise the passage of
the ultraviolet rays through the UV photoelectric cell bulb, thus
preventing the sensitive internal element from receiving the quantity
of radiation necessary for it to function properly. Should the bulb
be fouled by light oil, fuel oil, etc., it is indispensable to clean it
thoroughly.
It should be pointed out that even by simply touching the bulb with
the fingers, it is possible to leave a slight greasiness which could
compromise the working of the UV photoelectric cell. The UV cell
does not “see” daylight or light from an ordinary lamp. It is possible
to verify its sensibility with a flame (or cigarette lighter or a candle) or
with the electric spark that occurs between electrodes in an ordinary
ignition transformer. To ensure that the UV cell works properly, its
current value should be sufficiently stable so as not to fall below
the minimum value required for the specific control box. It may be
necessary to search experimentally for the best position by sliding
(axial or rotation movement) the body that contains the photoelectric
cell in respect to the fastening clamp. An inspection can be carried
out by inserting a micro-ammeter, with an adequate scale, in series to
one of the two UV photoelectric cell connection wires. It is obviously
necessary to respect the polarity (+ e -).
INSTRUCTIONS FOR SETTING DUNGS
GAS VALVES MOD. ZRDLE
OPERATING PRINCIPLE
This valve has two open positions and is equipped with a regulator.
The regulator sets the hydraulic brake activation point which, in
turn, causes rapid release of the opening first stage. After the initial
release, the brake cuts in, ensuring that the valve continues to open
slowly. This valve is also equipped with two gas flow regulators:
one for the first flame and the other for the second.
Setting the initial rapid release trip
To set the initial rapid release trip, unscrew the protection cap “F” and
use the back of the cap as a tool to turn pin “G”. Turning clockwise
decreases the gas flow, turning counter-clockwise increases it.
This done, screw down cap “F in its original position.
Setting gas flow for the 1
st
flame
Before setting the gas flow for the 1
st
and 2
nd
flames, loosen screw
“D” (unpainted screw with raised cylindrical head). After the gas flow
has been set, remember to tighten this screw once more.
N.B. To open to the 1
st
flame position, turn the 2nd flame regulation
ring “L” counter-clockwise by at least one full turn. To set the
gas flow for the 1
st
flame, turn knob “E”: turning it clockwise
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Detail of terminal block
Neutral
1
st
Position
2
nd
Position
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decreases gas flow, turning it counter-clockwise increases
it. Full travel of regulator “E” for the 1
st
flame, from + to -, is
approximately 3
1
/
2
turns. When this regulator is fully open,
the gas flow to the 1
st
flame can be approximately 40% of
the total available when the valve is fully open in the second
position.
Setting gas flow for the 2
nd
flame
Loosen screw “D” (unpainted screw with raised cylindrical head).
To set the gas flow for the 2
nd
flame, turn ring “L”: turning it clockwise
decreases gas flow, turning it counter clockwise increases it.
This done, tighten screw “D”. Full travel for regulator “L” for the 2
nd
flame, from + to -, is approximately 5
1
/
2
turns.
H = Identification plate
I = Flow direction indicator