Hoval BioLyt 50, BioLyt 70, BioLyt 75, BioLyt 110, BioLyt 150 Operating Instructions Manual
...
EN
Subject to modifi cations
Operating Instructions
Hoval United Kingdom
Hoval LTD
Northgate
Newark
Nottinghamshire NG24 1JN
Phone: +44 1636 67 27 11
Fax: +44 1636 67 35 32
Hoval Export
Hovalwerk AG
Austrasse 70
9490 Vaduz
Principality of Liechtenstein
Phone: +423 399 24 00
Fax: +423 399 26 18
Wood pellet heating boiler
BioLyt (50,70,75,110,150,160)
UK 4 204 793 / 04 - 05/10
Figure type BioLyt (50-75)
2
UK 4 204 793 / 04Contents
Information about your heating system ..................................................................................... 3
Important notes ............................................................................................................................4
Safety information ....................................................................................................................................................... 4
Cautionary notes ......................................................................................................................................................... 5
Functional description ................................................................................................................. 6
Functional description of the heating system .......................................................................................................... 6
What happens inside the BioLyt? .............................................................................................................................. 8
How are the pellets extracted and conveyed from the storage room? ................................................................... 9
Boiler control .............................................................................................................................. 10
Control elements of the control panel ..................................................................................................................... 10
System start-up / Regular checks / Cleaning the heating boiler for BioLyt (50-75) ............. 15
System start-up (BioLyt 50-75) .................................................................................................................................15
Regular checks (BioLyt 50-75) ................................................................................................................................. 15
Cleaning the heating boiler (BioLyt 50-75) ..............................................................................................................15
System start-up / Regular checks / Cleaning the heating boiler for BioLyt (110-160) ......... 18
System start-up (BioLyt 110-160) .............................................................................................................................18
Regular checks (BioLyt 110-160) ............................................................................................................................. 18
Cleaning the heating boiler (BioLyt 110-160) ..........................................................................................................18
Errors and faults ......................................................................................................................... 21
How you can save energy .......................................................................................................... 23
3
UK 4 204 793 / 04 Information about your heating system
Typical Wood Pellet Fuel Specification
The pellets should be formed from CLEAN or
VIRGIN TIMBER and to the specification outlined in
wood pellet specification CEN/TS 14961.
The fuel MUST NOT contain halogenated organic
compounds or heavy metals as a result of
treatment with wood preservatives or coatings.
Typically the wood pellet fuel would have the
following As Received properties,
Calorifi c Value (min)
nCV basis (CV)
17,000 kJ/kg, or
4.72 kWh/kg
Mechanical Durability
(DU)
> 97.5%
Ash Content (A) < 1.0%
Moisture Content (M) < 10 %
Size Diameter (D)
Length
D 06, Diameter 6mm
20 – 30mm
Sulphur Content (S) <0.05%
Fines (- 3.15mm into
vehicle) (F)
< 1.0%
Bulk Density 650 kg/m
3
Hoval do not endorse any particular wood pellet
manufacturer, however it is recommended that
fuel is supplied against the specification indicated,
and the supplier operates well maintained vehicles
and fully trained delivery drivers to ensure that the
boiler and fuel transfer system are presented with
well sized wood pellets, which are free from any
contamination.
BioLyt (50-160)
pellet heating boiler
To be completed by the heating engineer:
Order No. / Manufacturing No.: _____________________
Boiler type: _____________________________________
Boiler power rating: ____________________________ kW
Hot water storage tank size (if present): ______________
Water heater size: _______________________________
Heating pump type: ______________________________
Heating controller type: ___________________________
Mixing valves type:_______________________________
Calculation basis for heating system
Lowest outside temperature: _____________________ °C
°C Required thermal output: _____________________ kW
kW Max. fl ow temperature: ______________________ °C
Intended use
The BioLyt (50-160) pellet heating boiler has
been designed for the optimal combustion of
wood pellets in accordance with ÖNORM M
7135 or DIN 51731, HP5 (DINplus) or SN 166000
(ø 6-8 mm).
Dear Heating System Owner,
With the purchase of this Hoval BioLyt (50-160) pellet
heating boiler, you have made an excellent choice.
This boiler offers you all the advantages of a modern
and effi cient heating system.
Please read these instructions carefully. They describe how the heating boiler works, how it is operated and how it is maintained.
Further information can be obtained from our Sales and
Service Centres (see back page for contact details).
Important addresses and telephone
numbers
Heating engineer _______________________________
______________________________________________
______________________________________________
Plumber _______________________________________
______________________________________________
______________________________________________
Electrician _____________________________________
______________________________________________
______________________________________________
Master chimney sweep ___________________________
______________________________________________
______________________________________________
4
UK 4 204 793 / 04Important notes
Safety information
(Information on personal protection)
• Attention
Duly switch off the heating system
15 min. before fi lling the stockroom
Press STOP key for 5 sec.
Don't switch off the main switch!
Danger of back fi re!
• Keep the air supply into the room
open:
Air inlets and outlets should not
be closed. It is important to ensure
that the combustion air required
for the correct operation of the
heating boiler can fl ow unhindered
and to protect the operating personnel from an oxygen depleted
atmosphere.
• Do not operate the boiler with the
cover of the pellet hopper open
(danger of backfi ring). In addition,
any sparks emitted from the boiler
could cause a fi re.
• The system must be cleaned regu-
larly, otherwise any possible warranty claims may be rejected.
• Parents must keep their children
away from the boiler room: the
heating system is not a toy!
• Do not burn any unsuitable fuel (see
page 3), otherwise any possible
warranty claims may be rejected.
• Do not conduct any modifi cations
on the system (possible danger
to persons; possible loss of warranty).
Under unfavourable circumstances, it may occur
that an increased concentration of harmful gases
(such as carbon monoxide) arises in pellet storage
rooms, possibly posing a risk when accumulating
over a longer period of time. Despite the fact that
under normal circumstances, there is no risk at all,
one cannot rule out the possibility of such a scenario
to occur.
• If work is being carried out in fi lled storage rooms,
a second person must always be present outside
the room for security reasons. Before entering the
pellet storage room, it must always be thoroughly
aerated.
• Entering fuel storage rooms that have not been
aerated (particularly underground tanks) must be
avoided, only trained personnel is permitted to
do so. Before entering the room or tank, the concentration of CO must be measured (the concentration must be less than 30 ppm). If necessary,
thoroughly aerate the storage room or tank before
entering it.
• It the storage is diffi cult to access or if it is accessible only from above (such as underground tanks),
the person entering the tank must be additionally
secured.
• Keep away children from the pellet storage place!
5
UK 4 204 793 / 04 Important notes
Cautionary notes
(Information on the protection of the heating
system)
Control of the water level
Control the water level in the system at regular intervals.
Circulation pumps
During the time periods when no heating is required,
the circulation pumps should be operated for approx. 2
minutes at least once every month. This will effectively
prevent the pumps from getting stuck.
Filling the heating system
The heating system can normally be fi lled and topped
up with mains water. No chemical additives should
be added to the water. The water quality can vary
strongly in different parts of the country (you can
obtain information about the water quality from your
local water company) and it might not always be suitable for fi lling the heating system (highly corrosive or
hard water). Please contact your heating engineer in
those cases (see also Technical Information).
Tightness / Backfi re protection
The doors and pellet hopper must be checked for leaks
on annual basis. Smoke leaks should be avoided in
order to prevent any poisonous sulphur gases from
escaping into the boiler room. Moreover, leaky doors,
or a faulty pellet hopper gasket, could cause the embers to burn back into the pellet burner.
Cleaning
Periodic cleaning and inspection by the heating engineer or Hoval customer service, not only extend the
useful life of the pellet boiler, but also increase its
operating safety and ensure that a high combustion
effi ciency is maintained.
Heating boiler care
Do not use any sprays, solvents, chlorine based cleaning products, paint, glue, etc. in the proximity of the
heating boiler. These substances can cause corrosion
within the heating boiler and the fl ue gas system.
Pressure relief valve, backfi re protection and thermal
safety valve
The correct functioning of the different safety devices
(pressure relief valve on the heating installation, burnback protection valve on the burner, pellet hopper seal,
thermal safety valve) need to be checked periodically
by the heating engineer.
6
UK 4 204 793 / 04Functional description
Functional description of the heating system
It is important for the perfectly coordinated individual components to function properly to ensure that your
home stays warm in winter.
FUNCTION:
Burns the pellets safely and environmentally friendly.
Extracts the heat from the combustion gases and
transfers it to the heating water.
The pellets are combusted within the heating boiler
to release and convert the natural energy contained
therein into heat.
It is used as an intermediate storage of hot heating
water (max. 90°C). It compensates for any differences between heat generation and demand.
It holds a reserve of hot water for consumption (e.g.
for showering).
Controls and monitors the operation of the heating
boiler.
Adjusts the room temperature optimally and fuel effi ciently, independently of the outside temperature.
Releases the heat of the heating water into the
room.
Transports the heating water from the heating boiler to the radiators and back into the heating boiler,
where it is reheated.
Transports the generated heat from the heating boiler to the radiators.
COMPONENTS
Wood pellet heating
boiler
Wood pellets
Hot water storage tank
(optional)
Storage tank water
heater
Boiler control
Heating controller
Radiator or fl oor heating
Heating pump
Heating water and heating pipes
7
UK 4 204 793 / 04 Functional description
Adjusts the heating fl ow temperature to the radiator
to maintain the desired room temperature, independently of the outside temperature. This is achieved
by admixing colder return heating water.
Displays the water pressure in the heating system.
Eliminates any air from within the heating pipes.
Prevents an overpressure in the installation.
Maintains the pressure in the system constant and
accepts the expanding water.
Mixing valve
Manometer
Air bleeder
Safety valve
Diaphragm expansion tank
Water heater
Mixing valve
Radiator
or fl oor heating
Heating pump
Wood pellet
heating boiler
Hot water storage tank (optional)
Depending on the selected type of heating system, some of the components might be missing or some might
be added. The heating engineer will explain the system to you.
8
UK 4 204 793 / 04Functional description
What happens inside the BioLyt?
The Hoval BioLyt boiler has been designed for the
low emission combustion of wood pellets in accordance with ÖNORM M 7135 and DIN 51731, HP5
(DINplus) and SN 166000 (HP5). The dosing screw
conveys the wood pellets from the pellet hopper over
a drop chute to the feed screw. The dosing screw
adjusts the conveyed pellet amount as a function of
the power demand, while the continuously operating
feed screw feeds the pellets into the burner. Degassing of the pellets takes place in the rear section of
the burner into which primary air is supplied by the
high pressure fan. The combustible gas thus generated is thoroughly mixed with secondary air (supplied by the induced draught-fan) within the front
section of the tube, where it burns cleanly and completely with low emission levels.
The horizontal combustion results in a fl ame similar to that of an oil or gas burner. The combustion
system achieves an excellent pellet burnout rate.
Thanks to the large, mostly refractory lined combustion chamber, it is possible to attain a long residence
time of the hot gases, as well as suffi ciently high
combustion temperatures. These factors contribute to a further optimisation of the burnout quality.
The heat exchange between the hot gases and the
heating water takes place by means of the proven
thermolytic secondary heat exchange surface.
The ashes created as result of the combustion process are collected in the front part of the combustion
chamber and are periodically conveyed to the ash
container by the ash extraction screw.
Fig. 2
Loading...