background image

 

 
FAN CLEANSING 

Remove any extraneous material from the net of the aspiration grate (F) and, if necessary, clean the blades with 
pressurized air blows. 

 
BURNER CLEANSING 

For the heater to function  efficiently, the burner has  to be regularly services by an authorized service technician. 
All cleaning, servicing and regulation operations have to be performed as indicated in the burner manual. 
 

TRANSPORTING AND MOVING THE HEATER 

 

To move or transport the unit, place it on a raised base and then lift it with a forklift truck. There are no eyebolts 
or other hooking points. The unit can also be placed on supports laying it down on the side that cannot be seen on 
the first picture of the heater. 

 
Before moving the machine, you should: 

 

Stop the machine as indicated in the previous paragraph. 

 

Turn the disconnecting switch on the off position on the electric board. 

 

Wait until the heater has completely cooled down. 

 

 

FUNCTIONING PROBLEMS: CAUSES AND SOLUTIONS

 

PROBLEM 

 CAUSE 

SOLUTION 

Heater won’t start 

1.

 

Faulty electric supply 

2.

 

Wrong main switch position 

3.

 

Wrong room thermostat setting  

4.

 

Safety device (burner, safety 
thermostat) non restarted after 
repair 
 

 

1.

 

Check functioning and positioning of 
main switch  

1.

 

Check power wire 

1.

 

Check electric connections 

1.

 

Check fuses 

2.

 

Set main switch in the correct 
position 

3.

 

Check room thermostat setting and 
functioning 

4. Press restarting button

 

Limit Thermostat intervention 

1.

 

Combustion chamber has overheated 

1.

 

Check fuel flow 

1.

 

Check registers, draw-holes, etc. 
position 

1.

 

Remove extraneous material from air 
ducts and ventilation grates 

Burner starts working but the 
flame does not light up and reset 
light turns on 

1.

 

Irregular burner functioning 

1.

 

Press restarting button to turn on the 
heater. If the same problem arises 
again call an authorizes service 
technician 

Fan does not start or does it late 

1.

 

Faulty electric supply 

2.

 

Out of order fan 

3.

 

Burnt or interrupted engine winding  

4.

 

Burnt engine condenser  

5.

 

Blocked engine bearings 

1.

 

Check fuses 

1.

 

Check electric connections 

2.

 

Check the thermostat, set it and 
replace it if necessary 

3.

 

Replace fan engine 

4.

 

Replace condenser 

5.

 

Replace bearings 

Vibrating or producing unusual 
noise fan 

1.

 

Extraneous material on fan blades 

2.

 

Low air circulation 

1.

 

Remove extraneous materiel 

2.

 

Remove obstacles to air circulation 

Insufficient heating 

1.

 

Burner insufficient capability 

1.

 

Call an authorized Service Technician 

 
 
 
 
 
 
 
 
 

 

Summary of Contents for BF 105

Page 1: ...Hot air generator Operation and maintenance manual 4111 805 Edition 10 Rev 01 BF 35 BF 35 BF 35 BF 35 BF 45 BF 45 BF 45 BF 45 BF 75 BF 75 BF 75 BF 75 BF 95 BF 95 BF 95 BF 95 BF 105 BF 105 BF 105 BF 1...

Page 2: ...CONTROL BOARD 1 Commutator 2 Room thermostat 3 Burner 4 Fuel tank 5 Limit thermostat 6 Fan 7 Heat exchanger 8 Combustion chamber 9 Adjustable air head 5 3 2 1 4 6 7 8 9...

Page 3: ...e overheat thermostat activates if the temperature of the combustion chamber reaches the set maximum limit If any of those safety devices are activated you should check carefully what the problem is b...

Page 4: ...g and diffusing hot air An air head which can be connected to air ducts if the users chooses this option is supplied with every machine In this case and in particular if the diameter and length of the...

Page 5: ...ombustion chamber has completely cooled down VENTILATION When the commutator 1 gets turned to the position the heater will work in continuous fan mode MAINTENANCE WARNING The following operations have...

Page 6: ...hanger and the combustion chamber remove the burner the back lower panel C as well as the exchanger inspection panel E Using a vacuum cleaner or a ramroad remove soot and extraneous material Models BF...

Page 7: ...safety thermostat non restarted after repair 1 Check functioning and positioning of main switch 1 Check power wire 1 Check electric connections 1 Check fuses 2 Set main switch in the correct position...

Page 8: ...C Fuel tank 55 litres 55 litres 75 litres 105 litres 135 litres Dimensions L x P x H 460x1050x1600 mm 460x1050x1600 mm 540x1120x1700 mm 680x1220x1885 mm 760x1400x2000 mm Net weight without burner 132...

Page 9: ...ed and manufactured with high quality materials and components which can be recycled and reused When you find this crossed out wheeled symbol on a product that means that it is covered by the European...

Page 10: ......

Page 11: ......

Page 12: ...www desaitalia com info desaitalia com DESA POLAND Sp Z o o ul Magazynova 5A 62 023 Gadki Poland www desapoland pl office desapoland pl DESA HEATING EQUIPMENT SHANGHAI CO LTD Rm 2203 218 HengFeng Rd S...

Reviews: