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The following diagrams show possible flue positions:
4.5. FIRST START-UP AND COMBUSTION ADJUSTMENT
Warning
The first start-up should always be carried out by a
specialised technician checking the correctness of the
combustion parameters.
Warning
The burner settings are pre-set at the factory and may not
comply with those required, therefore, the settings need to
be checked and, where necessary, corrected.
The adjustment values (burner diesel pressure, combustion head
position, air adjustment) for each of the burners approved for these
units are indicated in the "TECHNICAL CHARACTERISTICS TABLE".
The probe used to periodically check combustion and flue smoke
temperatures is to be inserted as indicated:
Combustion is clean and stable when combustion values are as
follows:
Bacharach index: 0 (white)
CO
: 11 ÷ 12,5 %
2
Oxygen (O
): 4,5 ÷ 6 %
2
CO
: 500 ppm
max
You may have to change the burner settings due to the fuel used
and/or installation conditions (high altitude, air suction pipe with or
without Snorkel, etc.) if combustion parameters are not correct.
When inspection tests are completed, the hole drilled for the probe
must be sealed with a material that is resistant to high temperatures
L-L 278.00-SO
A) Minimum 1 m
B) As short as possible
C) Minimum 1 m
D) Chimney draught H shape
EN
and that ensures the tube remains airtight.
5. OPERATING INSTRUCTIONS
5.1. START
To start the heater:
• Make sure the switch (a) is set to "0";
• Supply electrical power to the space heater by pulling up the
disconnecting switch on the electric power panel: the green lamp
(b) will light up indicating that power is being supplied to the panel;
•Turn switch (a) to position H or H+V: the burner will begin the start-
up and pre-wash cycle, after which the flame will ignite; after the
combustion chamber has been heating for a few minutes, the main
fan will start up;
Warning
The fan runs continuously in H+V mode, even when the
desired room temperature has been reached, and the
burner turns off.
Warning
In H mode, the fan only runs when the combustion chamber
is sufficiently hot. Therefore, when the desired room
temperature has been reached, the burner turns off and the
fan keeps running only until the combustion chamber has
cooled completely.
• If the heater does not work during the start cycle or work cycle,
consult "TROUBLESHOOTING" to find the cause of the malfunction.
Warning
If the burner goes into safety stop (lamp c) push reset
button (g) for 3 seconds to restart the heater.
Warning
If the safety thermostat goes into safety stop (lamp d),
push reset button (f) for 3 seconds to restart the heater.
Warning
NEVER do more than two restarts in a row: unburned fuel
can accumulate in the combustion chamber and suddenly
flare up at the next restart.
5.2. STOP
Stop the heater by turning switch (a) to "0" position or, if the heater is
in automatic mode, by setting the room thermostat to a lower
temperature: the burner shuts off. The fan keeps working, starting
and stopping several times until the combustion chamber has cooled
completely.
Warning
Never stop the heater by simply turning off the
disconnecting switch on the panel.
The electrical supply must be disconnected ONLY when the
fan has come to a complete stop.
5.3. VENTILATION
To run the heater only in continuous ventilation mode, turn switch (a)
to the position with the symbol V.
Warning
All of the operations described in this section must be
performed by professionally qualified personnel only.
The following procedures must be done at regular intervals to ensure
efficient operation of the heater. Make sure you have detached the
electrical power line from the heater before starting any work.
6. MAINTENANCE
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