Section 3 - User Operating And Maintenance Instructions; Start-Up; First Firing And Testing; Tests - Accorroni MEC25-85 Technical Information

SECTION 3 - USER OPERATING AND MAINTENANCE

11. START-UP

11.1 FIRST FIRING AND TESTING

WARNING! It should be recalled that the first
firing of the appliance and the relative tests
must be performed by skilled technical
personnel. Non-compliance with this proce-
dure will invalidate the warranty conditions
and release the manufacturer from all
responsibilities.

11.2 TESTS

Before operating the air heater, make sure that
the installer has correctly carried out the operations
under his competence.

11.3 IGNITION

WARNING! Any operation on the appliance
not expressly described below must be
performed by skilled personnel.
Check that the gas on-off valves on any meter and
near the appliance are open.
(The instructions to the remote-control panel
functions - supplied on request - refer to fig. 43).
a) Energise using the omnipolar circuit-breaker
installed near the appliance
- appliance equipped with a remote-control
panel:
push the switch (A) to the "ON" position. Turn
the room thermostat dial (E) clockwise to the
highest value

REMOTE-CONTROL PANEL

D
INSTRUCTIONS
A B C
E
Fig. 43
- appliance with room thermostat:
set the thermostat regulation device to the
highest value
After this operation, the appliance starts working
and, after about three minutes from when the
burner was ignited, a thermostat starts the fan(s)
to distribute warm air in the environment.
If the air heater operation is controlled by the
remote-control panel (fig. 43), when the room has
reached the desired temperature, adjust the room
thermostat by slowly turning (counterclockwise)
the regulation dial (E) until the burner turns off,
indicated by the green lamp (C).
If the air heater is controlled by another type of
device or a room thermostat, set the required
temperature according to what is indicated in the
instructions provided with the regulation device.
From this point the air heater operation will be
completely automatic and will maintain the desired
temperature in the room.
Generally, the appliance blocks during a fault
or operating defect. Therefore, it is
recommended to contact a Technical Service
Centre.
If the air heater is controlled by the remote-control
panel, the block condition is signalled by turning
on the red lamp on the "reset" button (B).

11.4 SHUTDOWN

11.4.1 To turn off the air heater for a short period
of time, just use the room thermostat (lowering the
set temperature value or using a switch, if present)
or, with a remote-control panel, setting the switch
(A) to the "OFF" position, without moving the
temperature regulation dial.
WARNING! When the burner turns off, the fan(s)
will continue to operate for a few minutes, to
properly cool the exchanger. Therefore, it is
important not to turn off the air heater using the
mains switch, that also cuts off the power supply
to the fan(s), since this might lead to overheating
and trip the safety thermostat.
11.4.2 To turn off the air heater for an extended
period of time:
a) follow the same operations described in point
11.4.1
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