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SWITCHING ON 

To start the heater: 

 

Set the commutator (1) in the “O” position. 

 

Turn the disconnecting switch on the electric board on. 

 

Set  the  room  thermostat  (2)  at  the  maximum  level  and  set  the  commutator  (1)  in  the 

  position:  the 

burner will start and, after the combustion chamber has begun to heat, the fan will start too. 

 

If  the  heater  does  not  start  after  you  have  completed  the  operations  above,  you  should  check  the 

“FUNCTIONING PROBLEMS: CAUSES AND SOLUTIONS” paragraph. 

 

If the heater is working normally: 
1)

 

Set the room thermostat at the desired level. 

2)

 

Move the adjustable fins of the air head (9) to reach the desired position. 

 

TURNING OFF 

WARNING! 

You  should  never  stop  the  heater  by  simply  turning  off  the  disconnecting  switch  on  the  electric 
board. The electricity supply must only be disconnected when the fan has completely stopped.  

Turn the commutator (1), in the “O” position. The burner will stop, while the fan might turn off and on a few times 
until the combustion 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 to carried out by qualified personnel only 

For a correct work of the machine, it is necessary to perform the following operations periodically, remembering to 
disconnect the power line before beginning. 

Before carrying out any maintenance operation, 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. 

 
HEAT EXCHANGER AND COMBUSTION CHAMBER CLEANSING 

For the heater to operate efficiently, the heat exchanger and the combustion chamber have to be cleaned after a 
period  of  prolonged  use  or  even  more  frequently  if you  notice  too  much  soot  forms:  that  might  happen  with  un 
incorrect  chimney  draught,  with  a  very  bad  quality  fuel,  with  an  incorrectly  set  burner  or  when  the  heater  gets 
turned on and off too often. If the heater starts vibrating when it is in the on position, there is probably too much 
deposited soot.   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

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...

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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...

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