Janfire Flex-a Manual

Installation and Maintenance Instructions Janfire Flex 2a
Installation - Service
Pellet burner Janfire Flex-a
11899043 R2 SV

Janfire 2009

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV

Janfire 2009 2(19
)
Due to constant development, Janfire AB reserves the right to change part or parts of this
publication at any time without notice.
Janfire AB assumes no responsibility for errors or damages of any kind resulting from the use of
this publication.

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 3(19
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Contents
1 Safety Instructions.......................................................................................4
1.1 General Information .....................................................................................4
1.2 Conventions .................................................................................................5
1.3 Safety Instructions for Installation and Service.........................................5
1.4 Safety Systems ............................................................................................6
1.5 CE declaration ...............................................................................................6
2 Technical Data..............................................................................................7
3 Operational Description...............................................................................8
3.1 Pellet burner Flex-a........................................................................................9
3.2 Control panel................................................................................................11
3.3 Adjustment of various parameters................................................................12
3.4 Adjustment of the fan speed.........................................................................13
3.5 Adjustment of pellet Feeding........................................................................13
3.6 Adjustment of external augers running time .................................................14
3.7 Adjusting of maintenance time .....................................................................14
3.8 The Functional Description...........................................................................15
4 schema El ...................................................................................................17

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 4(19
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1 Safety Instructions
1.1 General Information
The security regulations base on a risk analysis that has been implemented according to relevant
EU directives in order to meet the European standards for CE labelling.
At each installation, the installation checklist completed and archived. This is very important to the
customer's warranty shall apply.
Read the safety instructions carefully before installation. Always follow the safety instructions
during installation and during maintenance. Follow the safety instructions on the warning signs!
Installation, operation, service and any other work should be carried out by qualified personnel and
in accordance to local standards and regulations.
When unpacking, the burner should be checked for any damage. If any parts are damaged contact
the installing contractor.
The local chimney sweep must be informed, an examination of the existing chimney must be
performed and a local building application may be necessary depending on local code
requirements.
Before using the system, it must be controlled and fine-tuned. Adjustments and readings are made
during start up. These observations should be written into the installation protocol. This is very
important in order to customer guarantee will apply.
NOTE: When restarting the system turn the burner fan on for 10 minutes to cool down any
remaining cinders.
NOTE: Always follow these instructions for installation, operation and service.
NOTE: For personal and operational safety: Use only spare parts, which have been manufactured
or approved by Janfire AB.

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 5(19
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1.2 Conventions
These safety instructions use the following protocols:
•DANGER!
The text “DANGER!” is used when there is a risk for personal injury or death.
•WARNING!
The text WARNING! is used when there is a risk for damaging the product, unit or control
box etc.
•CAUTION!
The text CAUTION! is used when there is a risk for a system failure, operational stop, or
disturbances etc.
The warning texts are in hierarchical order. The text “DANGER!” also includes the
possibility of the events covered by “WARNING!” or “CAUTION!”
1.3 Safety Instructions for Installation and Service
All electrical installation and service should be carried out by qualified personnel and in
accordance to local electrical standards and codes.
All plumbing and piping connections should be carried out by qualified personnel and in
accordance to local standards and codes.
Chimney cleaning should be carried out by qualified personnel and in accordance to local
standards and codes.
DANGER
High Voltage
inside
this equipment
DANGER
Rotating parts
DANGER
Risk of burns

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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1.4 Safety Systems
The following safety systems are included in the Janfire NH pellet burner:
•A drop shaft protects against reverse combustion.
•Temperature switch
A temperature switch in the drop shaft stops the burner output if temperature
exceed 140°C .
•Water safety device.
The water safety device blows at an environmental temperature of 100°C.
NOTE: The container must be entirely filled with water. If the water safety device has opened and
released water or has begun to leak, then it has to be replaced.
•Feeding hose of plastics of a special type. The hose between the external
screw and the burner is made of plastics so that it shall melt away (not burn)
at high environmental temperatures and break the connection between the
pellets feeder and the burner.
•Circuit breaker
The NH pellet burner is equipped with a burner door micro-switch or circuit
breaker, which prevents the burner from operating when detached from the
boiler.
NOTE: The free space around the burner shall be in accordance with the authorities' requirements
regarding fire safety.
1.5 CE declaration
If the unit is used in combinations other than those tested, Janfire AB cannot guarantee compliance
with the relevant EU directives.

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 7(19
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2 Technical Data
Janfire Flex-a
Burner output capacity 9, 12, 15 och 18 kW
Maintenance output 600 W – automatic choice
Burner power consumption 80 W, 230 VAC, 50 Hz
Automatic ignition coil 1000 W
Pellet storage volume Internal storage: 3 liter = 1,8 kg
Internal dosage motor 15 W
Combustion fan 60 W, Variable speed operation
Control panel Touch-button
Fuses - 6 A circuit breaker (6A automatic fuse)
- 6,3 Amp fast blow fuse for heating coil
External auger 1-phase 230 V AC, 50 Hz, 250 W, 2,4 A, Capacitor 14 µF.
If auger length greater than 4.30 m, use a 3-phase motor.
Weight 25 kg
195
162
162
380
575
630
550
Figur 1 Måttskiss Janfire Flex-a

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV

Janfire 2009 8(19
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3 Operational Description
An external auger feeds pellets from an external storage bin to a receptacle located in the top of
the burner (internal hopper). An internal dosage auger then feeds the pellets to a drop shut where
they fall freely into the combustion chamber or burning bowl/cup; this eliminates the possibility of
reverse combustion.
A variable speed fan supplies the burner with primary and secondary air. On its way to the burning
cup the air cools heat-exposed parts of the burner. The correct amount of air is then fed to the
burning cup for primary and secondary combustion. The ignition coil preheats the air for automatic
ignition. Burner cup sensor (flame guard) detects pellet ignition. If ignition does not take place shuts
the burner down.
OBS! If the draft is insufficient the hot flue gases will rise backwards into the drop chute. If the drop
chute temperature rises to the highest allowed level 140°C shuts the burner down. If it still is too
hot, the water safety device blows.
The power is determined by the chosen power level and is adjusted by the thermostat of the boiler.
Except for the standby output level of about 600 W, the burner output can be set between: 9 kW,
12 kW, 15 kW and18 kW. These burner output levels are based on a pellet weight density of 675
g/l and an energy content of 4.8 kWh/kg. To adjust for variations in the burner output and
combustion levels when using pellets with another weight or energy content the levels can be
changed here. The different output levels can be fine tuned to produce the best overall combustion
result.
High quality pellets produce high efficiency and output. High quality pellets are solid wood pellets
6-10 mm in diameter with little sawdust. Moisture levels should be no higher than 10%, ash
content no higher than 1% weight, and energy content should be about 4.7 - 5.0 kWh/kg. Always
verify the energy density and volume weight values for the pellets upon delivery.
Burner is intended for wood pellets according to SS 187120 group1-3(Sweden); DIN 51731 size
HP2 (Germany).

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 9(19
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Figur 2 Function description
3.1 Pellet burner Flex-a
1. Control panel is easily available and simple to use. It needs only a pressure on button
in order to start or to shut down. Automatic adaptation to summer or winter relation
gives best efficiency. Burner output can be adjusted after season, the building's size
and heat consumption. will be adjusted during installation. Burner output can thereby
easy be changed for most effective operation.
2. Good combustion with high efficiency and low wastes are achieved through that a
small internal auger be able precisely dose to the burner. Due to dosage auger can
pellet transport happen directly from bigger stores.
3. Automatic ignition.
4. Combustion Chamber is designed so that minimally with fuel submits the combustion
zone without to have been burnt up totally. None pellet ”spills over” and ports in the
boiler. Combustion Chamber is produced of heat-resistant stainless steels.
5. The combustion plate is very easy to lift out and clean.

Installationsanvisning Janfire Flex - a
IA Brännare Flex-a R2 SV
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Janfire 2009 10(19
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6. The burner is on wheels and therefore easy to move out for ash removal and cleaning.
It can easily be moved out of the boiler and avoid heavy lifting. Simple quick lock
fasteners - great for cleaning and ash removal.
7. Janfire flex-a can be obtained and adapted for upward burning or horizontally burning
flame and therefore suitable for almost all boilers.
8.
1
3
2
4
5
6
7
8
Figur 3 Pellet burner Flex-a