BIEMMEDUE JUMBO 65 M Livret D'entretien page 17

❏ 230V - 3~ - 50Hz
❏ 400V - 3~ - 50Hz
CONNECTION TO HOT AIR DUCTS
The space heater provides heat by releasing and dispersing hot air.
An air head is supplied with each unit but it can be replaced by other
types of head with two or four openings which allow for flexible tubes
in heat distribution. The screws which hold the original outlet in place
should be removed and the new outlet should be screwed on in place
of the old.
The air head can also be replaced by one of the "plenum" type. In
this case the front panel is removed and replaced by the "plenum".
The new head with the exception of the "plenum", may be con-
nected to new air ducts if the user wishes to satisfy specific needs. In
this case and in particular if the diameter and length of the ducts have
been changed or if the number of bends has been modified, air output
may vary. Consequently it is very important to check and regulate air
output when any modification is made to air heads or air ducts. In all
circumstances you must ensure that:
• The fan motor does not absorb more current than the maximum
permitted limit;
• The volume of air flow corresponds to the recommended level.
If the heater is equipped with centrifugal fan and if the volume of
hot air differs from preset values proceed as follows (Fig.2):
1) Remove the aspiration grill which is on fan motor side of the
unit.
2) Remove the screws (2) from the motor slide.
3) Remove the belt (1).
4) Loosen the bolts (3).
5) Turn the pulley clockwise and anti-clockwise in order to in-
crease or reduce the volume of air.
6) Tighten the bolts (3).
7) Put back the aspirations grill
8) Repeat operations from (1) to (7) until the correct volume of air
flow has been achieved.
1
DRAFT
The evacuation smoke flues have to be in steel and of conforming
to the norm EN 1443.
Efficient combustion and trouble-free working of the burner de-
pend on efficient flue draft. The unit must be connected to the chimney
flue in accordance with current legal regulations and in line with the
following guidelines:
• The tube which carries the smoke should cover as short a dis-
tance as possible and should slant upwards.
• There should be no sharp bends in the tubes and the diameter of
Table 2
4
3
2
Fig. 2
the tubes must never be reduced.
• Every heater must have its own chimney.
• Flue draft must at least correspond to the minimum compulsory
level in the Technical Specifications.
ANALYSIS OF COMBUSTION WASTE PRODUCTS
The probes which check the composition of combustion waste
products and smoke temperature must be positioned as indicated in
Fig.3.
When these tests have been completed the hole which was drilled
for the probe must be sealed with a material which is resistant to high
temperatures and which ensures that the tube remains airtight.
CONNECTION TO FUEL SUPPLY AND CHANGING FROM ONE TYPE OF
GAS TO ANOTHER
To connect the burner to the fuel supply follow the instructions in
the Burner Instruction Manual.
The burner can use both methane gas and L.P.G. The gas used to
predispose the heater at factory has been declared on data plates applied
on the box and on the heater itself (methane, G20, or L.P.G., G30, G31).
To change from methane gas to L.P.G. or vice-versa you must:
• Adjustments to be carried out are described in the burner in-
structions manual.
• repeat regulation of combustion while composition of combus-
tion waste products are checked.
• correct data plate on the heater writing which type of gas must
be used.
REGULATION OF COMBUSTION - I° OPERATION
After having checked the hermetic seal and of combustion waste
products line, heater may be operated for the first time.
To perform regulation of combustion correctly, combustion waste
products must be analyzed using appropriate instruments: values rec-
ommended by actual standards must be reached.
The regulation procedure has been on the Burner Instruction Man-
ual; final values of CO2 shall be correspondant to excess air factor of
1,2 (12,5 for gas-oil, 9,7% for G20, 9,6% for G25, 11,7% for G30 and
11,7% for G31) while CO level shall be less than 75 ppm.
INSTRUCTIONS FOR USE
SWITCHING ON
• Set the control knob (2) in position "0";
• Turn on the disconnecting switch on the electric switchboard;
• If the unit is operated manually turn the control knob to
burner starts up, the combustion chamber heats up and then the
fan starts;
• If the unit operates automatically set the room thermostat at the
desired level and turn the control knob (2) to
now start and stop automatically.
• If the heater doesn't start after you have completed the above
operations consult the Troubleshooting section of this manual.
TURNING OFF
In manual operation turn control knob (2) to "0" or turn off control
in automatic operation.
The burner stops while the fan turns itself on and off until the
combustion chamber has completely cooled down.
Warning
Never stop the heater by simply turning off the discon-
necting switch on the electric switchboard. The electri-
cal supply must only be disconnected when the fan has
come to a complete stop.
17
GB
200 mm
Fig.3
: the heater will
.The