Combustion Check; Combustion Control - Ignition And Gas Regulation (Methane) - baltur GI1000 LX Instrucciones De Uso

COMBUSTION CHECK

For a correct air/gas ratio you have to get a carbon dioxide reading (CO
minimum burner supply and up to the optimal level of 10% at maximum supply.
It is not advisable to exceed a 10% value or it could run with too little excess air. This could in turn cause (with
atmospheric pressure changes, the presence of dust in the air ducts) significant quantities of CO (carbon monoxide)
to be present in the system. To prevent dangerous situations from arising, it is essential to always check,
with a suitable instrument, that the percentage of carbon monoxide (CO) present in the fumes is not
greater than the maximum permitted level of 0.1%.
IGNITION AND GAS REGULATION (METHANE)
1) If not already done when connecting the burner to the gas pipes, taking the necessary measures and opening
doors and windows, it is necessary to bleed the air contained in the pipes. Open the union on the pipes close to
the burner, and slightly open the gas stop cock(s). Wait until you smell the typical gas smell, and then close the
cock. Wait for the necessary time, according to the specific conditions, until the gas present in the room is
dispersed outside and then restore the connection of the burner to the gas piping.
2) Check that there is water in the boiler and that the plant dampers are open.
3) Make sure that the combustion product discharge can occur freely (boiler and chimney dampers open).
4) Check that the electrical line voltage corresponds to that required for the burner, and that the electrical con-
nections (motor and main line) are preset for the available voltage value. Check that all electrical connec-
tions implemented on the spot are properly executed as per our wiring diagram.
5) Apply a pressure gauge with suitable scale to the gas pressure take-off to measure the regulation value (if the
expected pressure rate allows it, it is preferable to use a water column instrument, do not use hand instru-
ments for low pressures).
6) Regulate the air for the ignition flame, for minimum flame and high flame, following the instructions for regulat-
ing air damper control electrical motor shown in the following pages. In practice, set the low flame and high
flame air regulation cams to the suitable positions according to the desired thermal power for low and high
flame.
7) Open the flow adjuster incorporated in the pilot light valve(s) for the presumed required quantity. Check also the
combustion air dampers are at a suitable position. By acting on the special screw for adjusting the gas and air
pressure ratio, on the gas valve mod. "SKP 70...", set the desired value (see BT 8883).
8) With the burner panel switch set to "0" and main circuit breaker on, manually turn the contactor off and check
that the motor runs in the correct direction. If necessary, invert the place of two cables of the line supplying the
three-phase motor to reverse the direction of rotation.
9) Now enable the control panel switch and set the modulation switches to MIN (minimum) and MAN (manual).
The control box thus receives voltage, and the programmer determines the enable of the burner as described
in chapter "description of the operation".
Note: Pre-ventilation is carried out with open air and thus, during the same, the regulation servomotor is
enabled, and it runs a complete opening stroke up to the "maximum" set. Only when the regulation
servomotor returns to the "ignition" position, the control box continues its ignition program by enabling
the transformer and the ignition gas valves.
During the pre-ventilation step, make sure that the air pressure control switch changes position (from off
position without pressure detection it must switch to the off position with air pressure detection). If the air
pressure switch does not detect the sufficient pressure (it does not switch position), the ignition transformer
and the flame gas valves are not enabled, and thus the control box "locks". Note that some "locks" at the first
stage are normal since in the valve ramp pipes there is still air that must be discharged before having a stable
flame. To "unlock", press the "unlock" push button. At the first stage there may occur further "locks" due to:
) for the methane of at least 8% at the
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