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7.

 

Screw fuel feeder 

 

The screw fuel feeder connects the fuel bunker with the burner. The screw fuel 

feeder comprises a galvanized steel or stainless-steel duct 60 mm in diameter.  The duct 
houses a steel screw (auger) driven by an 230V AC motor over a gear. The motor is wired 
with a power cable to the respective power output receptacle of the burner control unit. The 
burner is fed automatically with fuel and automatically managed. If the fuel feeder duct fails 
e.g. by overheating with a flame flashback, the fuel feeder stops operation which quenches 
the burner. This prevents flames from propagating to the outside and a risk of fire in the 
boiler room. 
 

 

 

 

8.

 

Operating the burner 

 

The burner shall be installed and operated according to this Manual and the 

Warranty Certificate. VENMA shall not be liable for any damage resulting from improper use 
of the burner. 
 

The burner shall be cleaned and maintained according to the sound judgement of the 

user. The obligatory annual inspection of the burner shall be scheduled with the authorized 
technical service at least two weeks in advance. 
 

The heating equipment safety regulations require a minimum clearance of 0.8 m 

around the installed burner. Provide a sufficient clearance for service access to the burner. 
The boiler room shall be a dry and well-ventilated indoor location. No flammables shall be 
present near the burner 
 

 

Summary of Contents for Comfort 100

Page 1: ...T Operating Maintenance Manual COMFORT Series pellet burners P E L L E T B U R N E R S...

Page 2: ...green heating solution which can be fuelled with renewable materials including pellets fruit stones or oats The burner is managed by the included control unit which provides stepless adjustment of th...

Page 3: ...ined combustion of fuel The operation ends by quenching the fire and cleaning of the burner The external screw fuel feeder handles the fuel from the bunker to the burner The first firing up of a brand...

Page 4: ...operation The burner is cleaned of ash during combustion or after quenching the sequence for ash removal can be selected on the control unit ref the control unit user manual The burner is quenched au...

Page 5: ...bunker 5 Measure and adjust the pellet fuel feeder length the angle between the floor and the fuel feeder duct must not be higher than 45 Ref Fig 2 6 Suspend the fuel feeder on a chain sling Ref Fig 2...

Page 6: ...m Comfort 46 10 46 kW 450 150 W 24 kg 198 301 377 665 286 385 178 178 274 274 236 236 137 137 223 325 Comfort 58 12 58 kW 450 150 W 30 kg 238 341 417 705 286 358 178 178 274 274 236 236 137 137 223 32...

Page 7: ...6 Fuel specifications The fuel for the burner shall conform to the following specifications Form Granulated Diameter 6 8 mm Length 3 40 mm Dust fraction 1 Fuel density 620 kg m3 Moisture content 8 Ca...

Page 8: ...vents flames from propagating to the outside and a risk of fire in the boiler room 8 Operating the burner The burner shall be installed and operated according to this Manual and the Warranty Certifica...

Page 9: ...service perform the annual inspections the user must perform them anyway CAUTION Power off the control unit and disconnect the power supply wiring from the burner The burner internal components are sh...

Page 10: ...or carefully by pulling it out towards you and clean with a dry cloth Reinstall the flame sensor in the rubber gland Cleaning the positive pressure chamber remove the air fan and use its port to acces...

Page 11: ...rly visible Poor pellet fuel grades may obstruct the igniter Clean the flame sensor do this carefully with a dry cloth The control unit s display reads Feeder Overtemperature Check that the flue gas d...

Page 12: ...control unit fails run Replace the power fuse in the actuator module locate the white power terminal box to which all wiring is connected The burner smokes heavily and leaves soot inside the boiler In...

Page 13: ...Phone E mail Burner specifications Standard operation Automatic operation PID operation Min heat output Fuel feeder running time Fuel feeder stop time Combustion air supply Max heat output Fuel feeder...

Page 14: ...ate Periodic warranty and post warranty burner inspection Date Service engineer s stamp and legible signature Inspection type and Report no NOTICE Each inspection on site shall have the Inspection Rep...

Page 15: ...Warranty does not include mechanical failure of the product 7 The Warranty does not include the installation commissioning control unit configuration programming cleaning or maintenance 8 Excluded fr...

Page 16: ...rating the burner 8 9 Inspection of the burner 9 10 FAQ Frequently Asked Questions 11 11 Installation Report 13 12 Warranty Certificate 14 13 Warranty Terms Conditions 15 14 Contents 16 VENMA Natalia...

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