baltur COMIST 180 DSPNM Mode D'emploi page 23

SCHEMATIC LAYOUT FOR STEAM PRE-HEATER INSTALLED UPSTREAM FROM
THE ELECTRIC PREHEATER
TO BE INSTALLED BY
THE CUSTOMER
FROM BURNER PUMP
1 LEAK DISCHARGE
2 STEAM PASSAGE INDICATOR
3 DISCHARGE CONDENSATE
4 FILTER
5 MANUALLY CONTROLLED BY-PASS GATE VALVE TO EXCLUDE
THE PRE-HEATER WHEN IT'S COLD
6 ELECTRIC PRE-HEATER
7 SELF CLEANING FILTER 0.3 MM
8 THERMOMETER
9 MIN PRE-HEATER THERMOSTAT
10 MAX PRE-HEATER THERMOSTAT
STARTING UP AND REGULATION WITH METHA-
NE GAS
1) If not already done so at the moment of connecting the burner
to the gas pipeline, it is indispensable to carry out a purge
of the air contained in the pipeline. As a precaution, special
care should be taken and doors and windows should be
opened. Open the pipe union on the pipeline situated near
the burner and the open a little the gas cut-off cock (or cocks).
When the characteristic odour of gas can be smelled, close
the cut-off cock. Wait until the gas present in the room has
dispersed, and then reconnect the burner to the gas pipeline.
Subsequently, re-open the gas cut-off cock.
2) Check that there is water in the boiler and that the system's
gas valves are open.
3) Check, with absolute certainty that the discharge of combustion
products can take place freely (boiler and chimney lock-gates
should be open).
4) Make sure that the voltage of the electric line to which the
burner is to be connected, corresponds to that required by the
burner and that the electrical connections (motor or principle
line) have been prepared to match the voltage rating available.
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11 PRE-HEATER ADJUSTER THERMOSTAT
12 THERMOMETER
13 PLUG FOR PRESSURE GAUGE
14 STEAM PRE-HEATER
15 CUT-OUT GATE VALVE
16 STEAM PRESSURE REGULATOR ADJUSTABLE FROM 1÷8 BAR
17 STEAM GAUGE 0÷10 BAR
A)
B)
C) DISCHARGE CONDENSE
5) Make sure that the combustion head is long enough to enter
6) Apply a manometer with an adequate scale (if the entity of
7) Open, to the quantity considered necessary, the flow regulator
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STEAM ENTRY MIN 12 BAR
AIR DISCHARGE
Also check that all the electrical connections carried out on the
spot are in accordance with our electric wiring diagram.
the furnace to the extent specified by the boiler manufacturer.
Check that the device which regulates the air on the com-
bustion head is in the position considered necessary for the
fuel delivery required (air passage between the disk and the
head should be considerably reduced when the fuel delivery
is reduced; on the other hand, when the fuel delivery is fairly
high; the air passage between the disk and the head should
be relatively open). See chapter "Air Regulation on the Com-
bustion Head".
pressure forecast allows it; it is preferable to use a column
of water instruments, do not use a pointer instrument for
moderate pressure) to the pressure plug on the gas pressure
switch.
incorporated in the ignition flame valve(s) (pilot). If the burner
has already started up with fuel oil, do not modify the position
of the air delivery shutter, but adjust the quantity of gas to the
quantity of air already regulated for fuel oil. However, if the
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N° BT 8576
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