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Verfügbare Sprachen
Verfügbare Sprachen
ROOM THERMOSTAT
This must be installed in the room to be heated at a height above floor level of 1.5 m approximately, in a position
protected from currents of hot or cold air.
The thermostat controls start-up and stoppage of the heater to maintain the temperature near the value set. The
thermostat is not supplied with the heater but must be requested as an accessory.
OPERATION SWITCH
HEATING/STOP/VENTILATION
Placed on the heater control panel, this switch allows selection of the operation cycle:
•
Set to the symbol "heating", it programmes the heater so that the fan and the burner operate automatically
according to the heat demand.
•
Set to the symbol "ventilation", it controls the heater excluding operation of the burner thus, operating with the
fan only, it allows summer cooling.
•
Set to the symbol "stop", it stops the warm air heater. The fan operates for a certain time to remove the heat
accumulated in the heat exchanger.
To ensure correct operation of the heater, some
fundamental parameters must be checked. Switch on the
heater and:
•
Check that the fan unit starts approximately one
minute after burner ignition.
With the warm air heater in steady state (after
approximately 20 minutes of continuous operation) carry
out these operations:
•
Check that there are no fuel leaks.
•
Check the correct flow rate of the fuel measured
at the counter (where possible).
•
Check that the settings of the double thermostat
are as indicated in the Chapter TECHNICAL
DATA.
•
Check that the flue temperature is as shown in
the Chapter TECHNICAL DATA, with a tolerance
of +/-10°C.
•
Check that the double thermostat adjustments
are as shown in the Chapter TECHNICAL DATA.
•
Check that the graduated dial of the double
thermostat indicates 50-60°C and that the LIMIT
switch does not operate.
•
Check that the temperature difference Dt
between air delivered (Tm) and air returned (Tr)
corresponds to that indicated in the Chapter
"TECHNICAL DATA" with a tolerance of ± 5°C.
•
Turn the double thermostat dial by hand to
simulate action of the LIMIT thermostat and
check that the burner switches off.
•
Open the contact in the room thermostat and
check that this acts on the burner only and that
the fan unit does not stop at the same time.
•
Check that the current taken by the main motor
does not exceed nominal value on the number
plate.
•
Check that the setting of the cutout protection
relay is adjusted to the nominal current value of
the motor (only for types 5÷7).
•
Check that the fan operates for approximately
four minutes after the burner is switched off,
before stopping.
CONTROLS
CHECKS
IMPORTANT
•
An excessively low thermal power and/or an
excessively high
condensation of the flue, with consequent
irreparable corrosion of the heat exchanger.
•
You
condensation
during operation. This check is done by
switching the burner off after approximately ½
hour of continuous operation, at the same
time checking via the chimney connection that
there is no trace of humidity in the flue
collector and in the fire tubes.
24
airflow
rate can
MUST
check
for
the
within
the
heat
cause
absence
of
exchanger
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