Methane Lighting And Regulation - baltur GI MIST DSPGM Serie Manual De Instrucciones

Usually it is not necessary to act on the modulation electronic
regulator internal settings. To customise them, please consult
the QUICK ELECTRONIC REGULATOR GUIDE supplied
with the system.
• Check the flame detector efficiency. The flame detecting UV
photocell must be able to trigger upon system operation if the
flame turns off (this check must be carried out after at least
one minute from the ignition. The burner must shut down
and remain in that condition when, upon ignition and during
the time preset by the equipment, the flame is not ignited.
The lock condition leads to an immediate fuel shut-off, the
system stops and the lock warning light comes on.
To check the UV photocell and lock, proceed as follows:
- Start the burner.
- After at least one minute from ignition remove the UV photocell
from its seat and simulate a flame failure by covering it with
a dark cloth. The burner flame must turn off, the equipment
must repeat the ignition phase from the beginning and shut
down as soon as the flame turns on.
- The equipment can only be released manually by pressing
the release button. The burner shutdown efficiency test must
be performed at least twice.
• Check that the boiler thermostats or pressure switches are
operating correctly (they must cause the boiler to shut down
when they intervene).

METHANE LIGHTING AND REGULATION

• It is necessary to bleed the air from the gas pipes to the burner.
To do this, open the union on the pipe near the burner and then
slightly open the gas on/off cock(s). When you smell gas, close
the cock and restore the burner connection to the pipe. Then
open the gas shut-off cock again.
• Check that there is water in the boiler and that the gates on the
system are open.
• M a k e a b s o l u t e l y s u r e t h a t t h e d i s c h a r g e o f
c o m b u s t i o n p r o d u c t s c a n t a k e p l a c e f r e e l y
(boiler and chimney gates should be open).
• Make sure that the voltage of the electric line to which the
burner is to be connected, corresponds to that requested by the
manufacturer, and that the motor's electrical connections have
been correctly prepared to match the voltage rating available.
Also check that all electric connections made on-site are
performed correctly as shown in our wiring diagram.
• Make sure that the combustion head enters the furnace to the
extent specified by the boiler manufacturer. Check that the air
regulation device on the combustion head is in the appropriate
position for supplying the required amount of fuel (the passage
of air between disc and head must be closed off significantly
if a small amount of fuel is supplied, and opened up if the fuel
supply is abundant). Refer to the chapter "Air regulation on the
combustion head".
• Fit a pressure gauge of appropriate scale to the pressure intake
on the gas pressure switch (if the amount of pressure to be used
allows it, we recommend to use a water column instrument; do
not use instruments with indicator hands for low pressures).
• Open the regulator integrated in the ignition (pilot) flame valve
as necessary. If the burner is already working with diesel,
do not change the position of the air gate, but adjust the
quantity of gas to the air already set for the diesel.
If, otherwise, the burner is working with gas only, check the
position of the combustion air adjustment gate and correct it, if
necessary, by acting on the adjustment disc screws.
• Remove the protection cover of the rotating disc on the fuel/air
output adjustment servomotor, to reach the fuel and combustion
air adjustment screws.
• With burner switch to "O" and master switch turned on, manually
close the remote control and check that the motor revolves in
the correct direction. If necessary, change the position of the
two cables in the line that feeds the motor in order to invert the
direction of revolution.
• Then enable the control panel switch and turn the two modulation
switches to MIN (minimum) and MAN (manual). This powers on
the control device, and the programmer turns on the burner as
described in the chapter "Operation description".
The pre-ventilation is carried out with open air, then the gas/
air output adjustment servomotor is activated and performs
the complete opening stroke up to the "maximum" output.
Afterwards the fuel/air adjustment servomotor returns to
the original position (minimum output). Only when the
modulation is returned to the "minimum" position, the
equipment continues its ignition process by activating the
transformer and the ignition pilot gas valves.
During pre-ventilation, make sure that the air pressure
switch changes its status (from the closed position without
pressure measurement to the closed position with pressure
measurement). If the air pressure switch does not detect
enough pressure, it inhibits the transformer activation as
well as the ignition pilot gas valve opening bringing the
equipment in the "shutdown" condition. We remind you that
a few "shutdowns" during this first start-up phase are to be
considered normal, since the valve train pipe can still contain
some air, which must be bled to obtain a stable flame. Press
the "release" button to resume the burner operation.
UV PHOTOCELL
If the flame is detected by the UV photocell remember what
specified below. A slight amount of grease will strongly compromise
the passage of the ultraviolet rays through the UV photocell
bulb, preventing the internal sensitive element from receiving
the quantity of radiations required for proper operation. If the
bulb is fouled with diesel, fuel oil, etc... it must be properly
cleaned. Even the simple contact with your fingers can leave
a slight amount of grease that is enough to compromise the
operation. The UV photocell does not detect daylight or the
light from a common lamp. Its sensitivity can be tested using
a flame (lighter, candle) or the electric discharge that occurs
between the electrodes of a common ignition transformer.
To ensure a proper operation, the UV photocell current value must
be sufficiently stable and not go below the minimum value required
for the specific equipment. It may be necessary to tentatively find
the best position by sliding (axial or rotational movement) the
casing that contains the photocell with respect to the fastening
clamp. This can be checked by connecting a micro-ammeter, with
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