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7
•
Indirect fired heaters:
connect the heater to a
chimney or to a exhaust
duct. To get a proper
draught (at least 0,1 mbar)
in
the
chimney
the
exhaust gas path must
rise. Avoid any elbows
and bends in the first part
of the exhaust ducts for at
least 3 m. For operation
of heater in closed rooms
without flue refer to the
instructions
for
installation (par. 4)
•
If
a
remote
thermostat is used, set it
on maximum temperature.
•
Turn
switch
to
position “ON”
•
Set the desired
temperature on room
thermostat.
Correct
Incorrect
5.2. Manual reset/restart (ON/OFF switch)
When the appliance locks out, move the ON/OFF switch to position OFF and then to position ON again to restart the
appliance (see also "Troubleshooting")
5.3. Air pressure switch
The heater is equipped with an air pressure switch that controls the airflow pressure. In the event of overheating the
pressure switch shuts the heater down. If this occurs, detect and eliminate the cause of overheating before using the heater
again. Have the heater inspected by a qualified technician if required. To reset, let the unit cool unit down and then restart it
as described above (see par. 5.2).
5.4. Shut-down
Move switch to "OFF" (O) position.
DIRECT-FIRED MODELS: the unit shuts down immediately.
INDIRECT-FIRED MODELS and GRY-D 60 WU: the fan continues to rotate for about 2 minutes to cool the
combustion chamber. Then the appliance automatically shuts down.
Do not unplug while in operation. Allow the heater to cool before stop
The big amount of heat produced could damage the components
6. Maintenance
BEFORE ANY MAINTENANCE OPERATIONS, SHUT DOWN, UNPLUG AND LET THE HEATER COOL.
Maintenance must be carried out by qualified personnel (see also section 7).
The appliance must be thoroughly cleaned once a year to assure correct combustion and long life.
In addition the following must be cleaned more often depending on fuel and operating environment: