8
HOT AIR GENERATOR
GB
•Table I shows the adhesive label on units which have
•must be connected to the unit electric switchboard by means of the cable fastener (3) and connected to the terminals N, L and 
,if 
, if
•must be connected directly to a mains switchboard that has a disconnecting switch.
•must not be longer than 2 meters.
•The burner must be mounted and attached to the heather with appropriate screws. The gaskets supplied with the burner should be placed between the burner and the heater.
•The burner must be connected to the fuel supply and the burners calibration (“burner Instruction manual”) unanimously with themaximun space heater power signed on the technical label.
•Connect accessories such as the room thermostat or clock to the unit electric switchboard: electric wire must be connected by means of the cable fastener (8) to the terminals 7 and 8.
❏230V - 3~ - 50Hz
| ❏ 400V - 3~ - 50Hz | Tab. 1 |
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| BG 100 |
| BG 150 |
| BG 200 |
Number of phases | 3 |
| 3 |
| 3 | |
Tension | [V] | 230/400 | 230/400 |
| 230/400 | |
Frequency | [Hz] | 50 |
| 50 |
| 50 |
Tab. 2
Having completed all these operations check carefully that all electrical connections correspond to the wiring diagram and check the setting of thermostat F (“TECHNICAL SPECIFICA- TIONS”). When the heateris first turned on you must check that the fan does not use more electricity than the maximum permit- ted limit. Finally, follow the instructions in the Burner Instruction Manual to regulate the burner unanimously to the suitable tech- nical data for the space heater.
CONNECTION TO HOT AIR DUCTS
The space heater provides heat by releasing and dispersing hot air (Fig.1). An airhead is supplied and it can be connected 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 airheads or air ducts. In all circumstances you must ensure that (Fig. 3):
•The fan does not use more electricity than the maximum per- mitted limit.
•The volume of air flow corresponds to the recommended le- vel.
If the volume of flow rate air differs from preset values proceed as follows:
4 | 3 | 2 | 1 | Fig. 3 |
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1)Remove the aspiration grill which is on fan motor side of theunit.
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
6)Tighten the bolts (3).
7)Put back the aspiration grill.
8)Repeat operations
DRAFT
The evacuation smoke flues have to be in steel and of the kind T250, conforming to the norm EN 1443.
Efficient combustion and
•The tube that carries the smoke should cover as short a distan- ce as possible and should slant upwards
•There should be no sharp bends in the tubes and the diameter of 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
•the chimney flue has to have a length of 1 meter.
ANALYSIS OF COMBUSTION WASTE PRODUCTS
The probes which check the composition of combustion waste products and smoke temperature must be positioned as indica- ted in Fig. 4.
When these tests have been completed the hole that 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.
200 mm
Fig. 4
CONNECTION TO FUEL SUPPLY AND CHANGING FROM ONE TYPE OFGAS 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 LPG. This heater has been predisposed to use methane gas, G20. To change from methane gas to LPG or vice versa consult the Burner Instruc- tion Manual which accompanies this manual. With the Burner
