Solarbayer HVS Series User manual

HVS E ECONOMIC
HVS LC LAMBDA CONTROL
© Solarbayer GmbH [02.16] 1
PRODUCT INFORMATION
Instrucon Manual
SOLARBAYER WOOD LOG BOILER
Solarbayer control unit „SB4.0”

2© Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
General informaon
Regulaons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety regulaons for fire protecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Seconal model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Calculaon aid for dimensioning the wood log boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Technical data.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Mounng dimensions .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Safety regulaons ‐ installaon guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installaon
Tank sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Boiler charging unit (mandatory). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Thermal discharge safety valve (mandatory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Exhaust gas fan (oponal accessory). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Flue pipe and barometric damper (oponal accessory) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electrical connecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Electric circuit diagram HVS E. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electric circuit diagram HVS LC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Checklist for inial operaon of the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operaon
Descripon of control panel and display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Descripon of icons and basic parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Basic menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Important parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Return to factory sengs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Expert level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Heang up the boiler – control panel (without exhaust gas fan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Heang up the boiler – control panel (with exhaust gas fan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Heang up the boiler – ignite the fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Turn‐off the boiler (automacally). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Turn‐off the boiler (manually) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Type of fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Contents

© Solarbayer GmbH [02.16] 3
PRODUCT INFORMATION Wood log boiler HVS
Maintenance
Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Boiler casing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Ceramic nozzle/nozzle brick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Protecon bricks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Combuson chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Primary and secondary air duct. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Adjusng the secondary air (only for HVS E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Forced dra fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Lambda servo motor and air blind (only with HVS LC). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Lambda sensor (only with HVS LC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Safety temperature limiter ‐ STB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Exhaust gas turbulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Cleaning the fuel chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Cleaning the heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Cleaning the primary and secondary air ducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Maintenance plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Maintenance report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Exhaust gas measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Trouble shoong . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Declaraon of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Manufacturers delcaraon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
General Information
Maintenance Operation Installation
Please pay attantion to the „checklist for initial operation” before first operation,
see chapter [Installation] Checklist for initial operation of the boiler
Please pay attention to the correct position of the steel tub in the combustion chamber, as well as to the
correct position of the fireclay bricks and plates.
see chapter [Maintenance] Combustion chamber

4© Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
General Information
Principle of operation
The Solarbayer wood log boiler HVS is a state‐of‐the‐art device for heang with solid wood.
It is easy to handle aer the installaon has been carried out by a professional installer.
All naonal and local regulaons and the requirements stated in this manual (see page 6) have to be
fulfilled both during installaon and operaon by the installer and the operator of the system.
The Solarbayer HVS LC wood log boiler is characterized by a modern and modular control concept
which ensures more performance and a low, environmentally friendly pollutant emission due to the
serially integrated lambda sensor which permanently observes the exhaust gas value.
With the help of the integrated boiler and exhaust gas logic the intelligent control recognizes the
requirements of energy. Due to the modulang air supply the boiler is able to react to a possible
power reserve and can therefore ensure an almost perfect exploitaon of combusbles. This means
the highest possible comfort for you and a steady and even combuson for your wood.
You can only achieve an opmal efficiency factor with a perfectly aligned system. Therefore, we
generally recommend our high quality straficaon tanks SPS with integrated, patented, straficaon
system. The produced heat of the wood log boiler can be perfectly stored in this kind of tank. The
stored thermal energy is relieved into the heang system when needed.
This keeps your fuel consumpon as low as possible and even preserves the environment.
The HVS wood log boiler is easy to handle, it can be refuelled and cleaned without the slightest
effort. Just fill in logs, ignite them and everything else is working just by itself. The large fuel
chamber provides a long combuson period. The integrated fan guarantees an unproblemac
start. The fuel chamber door and its bolt do not give way for smoke emission. Moreover, the
combuson is stabilized throughout the whole combuson period by the fan and enables an
unproblemac operaon.
For planning means please refer to the follwoing pages, especially the calculaon example for
dimensioning the wood log boiler.
The usage of the Solarbayer wood log boiler HVS in smokeless zones in the UK is NOT granted by the
DEFRA since the company Solarbayer did not apply for it (dated March 1st 2013)

© Solarbayer GmbH [02.16] 5
PRODUCT INFORMATION Wood log boiler HVS
General Information
General information

6© Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
General Information
Regulaons
The intended use of the wood log boiler is the exclusive application for hot water heating systems in accordance
with DIN EN 12828
Please read the manual carefully to prevent damages due to improper installation. The installation has to be
carried out by a specialized company in accordance with the „generally accepted codes of practice“ as well as with
the valid regulations and norms. Country specific norms and regulations have to be paid attention to.
Non‐professional installation as well as other than the intended use will lead to the expiration of warranty.
All national and local regulations concerning the installation, operation and maintenance have to be
regarded.
When installed in the UK, all buidling regulations including Part G, J and L have to be strictly adhered to.
The following engineering rules have to be particularly regarded*:
DIN EN 303‐5 Heating boilers for solid fuels, manually and automatically stoked
DIN 1988 Codes of practice for drinking water systems
DIN EN 806 Codes of practice for drinking water systems
DIN EN 12828 Heating systems in buildings ‐ Design for water‐based heating systems
DIN 4759‐1 Process heat installations for more than one kind of energy;
one boiler for solid fuel and one for oil or gas and only one chimney;
safety requirements and tests
VDI 2035 Prevention of damage in water heating installations
VDE 0100 Erection of power installations
VDE 0105 Operation of electrical installations
* This list is not exhaustive, updates and new releases have to be regarded.

© Solarbayer GmbH [02.16] 7
PRODUCT INFORMATION Wood log boiler HVS
General Information
Safety regulaons for fire protecon
The boiler has to be installed in accordance with the valid fire
protection regulations and norms. The determined clearance distances
from inflammable material have to be regarded when installing the
boiler. For wood log boilers up to 50 kW a safety distance from material
labeled with level B, C1 and C2 of at least 200 mm and labeled with
level C3 a distance of at least 400 mm has to be maintained. The safety
distance could be reduced to half the distance if an incombustible plate
with a thickness of at least 5 mm is applied 25mm away from the
inflammable object/material. The plate has to overlap the boiler’s
outline (full length: including the exhaust stack) at least 150 mm. Above
the consumer’s upper area there has to be a clearance distance of at
least 300 mm.
Level A: incombustible building material (concrete, mortar, clay bricks,
glas, fireclay, etc.)
Level B: very difficult to ignite (drywall, etc.)
Level C1: difficult to ignite (lignate plates, chipboards, etc.)
Level C2: normal combustibility (wood – oak, alder, larch, spruce,
chipboards, etc.)
Level C3: easily ignited (wood – pine, beech, ash, poplar, fibreboards, cork, foil, polystyrene, polyethylene,
bituminized boards, cellulose, plywood, etc.)
The SOLARBAYER wood log gasification boiler has to placed on a protection plate (see sketch above) in case of
doubt. In case of ambiguity please inquire with the local supervisory body (chimney sweeper ...) beforehand.
Safety regulaons for operaon and maintenance
1. No interventions at the electrical devices and electric conducts are allowed during the operation of the boiler,
f. e.:
‐ removing the casing of the electric device (electronics assembly, forced draft fan ...)
‐ exchanging fuses
‐ repairing defective boiler insulation, etc.
2. Maintenance and repair are only to be carried out by authorized qualified persons.
3. Before removing the boiler’s casing or any other electrical appliance connected to the boiler it is necessary to
disconnect the power supply of all devices.
4. If defects are detected at the electric installation or damages at the boiler installatio it is necessary to observe
the following rules:
‐ do NOT touch any part of the boiler,
‐ IMMEDIATELY disconnect the boiler’s power supply; inform an authorized service technician who solves the
problem
Example for placing the protecon
plate on inflammable floor
(dimensions in mm)

8© Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
General Information
Complete combuson of the
wood gases in the lower
combuson chamber
Seconal model
1Control unit
graphic display with permanent
presentation of the system’s operating
status
2Fuel chamber door
large‐size fuel chamber door
3Forced draught fan
the quantity of air, necessary for a
perfect combustion, is supplied by the
infinitely variable forced draught fan
equipped as standard
4Bottom door
cleaning door for the removal of ash
5Fuel chamber
large fuel chamber (0,5m up to 1m logs,
depending on boiler size)
5a Conical fuel chamber walls*
for a steady inlet of embers to the
ceramic nozzle
6Primary air duct
pre‐heated primary air is lead into the
fuel chamber by the rear air duct
7Ceramic nozzle with secondary air duct
creates the perfect gas mixture and
guarantees a clean downward wood gas
flame
8Slide‐in combustion chamber
with high temperature resistant fireclay
bricks for a complete burnout of the
wood gases
9Exhaust gas heat exchanger with
turbulators
for best possible hand‐over of exhaust
gas heat to the heating water
10 Exhaust gas damper with draft bar
prevents outlet of flue gas when
refueling the boiler
11 Safety heat exchanger
for cooling down in case of
overheating
12 Boiler flow line
2
3
4
6
8
5
9
12
11
10
1
7
A
5a
1
ALambda servo motor (only with HVS LC)
The secondary air is adjusted by the lambda sensor via a
servo motor, depending on the emission values.
With the boiler series HVS E (without lambda control) the
secondary is adjusted via regulating screws.
Graphic display with pre‐defined
Solarbayer hydraulic scheme.
seconal model shoes HVS LC
*only with HVS 16, HVS 25 and HVS 40

© Solarbayer GmbH [02.16] 9
PRODUCT INFORMATION Wood log boiler HVS
General Information
Calculaon aid for dimensioning the wood log boiler
5 4 3 2 1 100 200 300 400 500
daily boiler fillings heatable living area [m²]
HVS 16
HVS 25
HVS 40
HVS 60
HVS 100 1600
1400
1200
1000
800
600
400
200
60
50
40
30
20
10
permanently required heang output [kW]**daily heat requirement [kWh/d]*
300 W/m² 200 W/m² 150 W/m²
125 W/m²
100 W/m²
75 W/m²
50 W/m²
25 W/m²
Building class Heat load on coldest day (‐16 °C)
Exisng building unl 1977 120 to >160 W/m²
Thermal Insulaon Ordinance since 1977 80 to 120 W/m²
Thermal Insulaon Ordinance since 1984 60 to 80 W/m²
Thermal Insulaon Ordinance since 1994 40 to 60 W/m²
EnEV 2002 20 to 45 W/m²
EnEV 2009 15 to 30 W/m²
source: Book of Tables SHK
Please note that with solid
fuel boilers the specified
output is guaranteed under
full load only.
You heat up the boiler and it
will take about 30 minutes
unl the boiler will operate
with its maximum output.
The stated output will last
for approximately 2,5 hrs.
Now the burn‐off period
begins for about an hour
with decreased
performance. The firebed
remaining in the combuson
chamber will post‐heat for
about an hour. Aerwards
the combusble is
completely used up.
For an easier calculaon we
presume a burning period of
approximately 4 hrs (at no‐
minal output).
Aenon:
This is imperative
for the rating of the boiler to
avoid that the boiler output is
rated too weak
*daily heat requirement
[kWh/d]:
The daily heat requirement
of the building in kWh (at an
outside temperature of
‐16°C), when known. This
value can be inquired with
the architect of the building.
If you don’t know the exact
value it might roughly be
esmated. Thus, you take
the heat load of the
corresponding building class
in the adjacent chart and
then the equivalent line in
the diagram in order to
calculate the heat load for
your living area.
**permanently needed
heang output [kW]:
The permanently required
heang output is for exam‐
ple the nominal heat output
of an ordinary oil/gas boiler
that produces thermal heat
for 24 hrs.
Dimensioning diagram for calculang the boiler size
with the following operang condions:
outside temperature: approx. ‐16 °C (coldest day)
room temperature: approx. 20 °C
persons: approx. 4
type of building: SFD
heat coverage by wood log boiler: 100%
daily fillings with wood (at ‐16 °C): approx. 3 mes
Differing operang condions may increase or decrease the heat requirements.
Esmate in parcular cases and keep reserves.

10 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
General Information
Technical specificaons
General facts
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
nominal output in kW kW 16 25 40 60 100
efficiency factor % 88 – 92 %
water capacity l 60 75 93 180 215
max. operating pressure bar 3 3 3 3 3
pressure loss at nominal load (Δt 10 K) mbar 9,35 9,75 10,48 12,77 11,5
pressure loss at nominal load (Δt 20 K) mbar 1,00 1,05 2,55 3,19 2,82
permissible pressure range safety valve bar min. 1 to max. 4
water inlet temperature safety valve °C 4 – 15 °C
opening temperature safety valve °C approx. 95 °C
noise level dB 45,0 45,5 47,7 51,4 54,2
Fuel chamber/fuel consumption
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
admissible fuel untreated, split wood log with residual moisture of <20%
max. wood log length mm 350 550 550 700 1000
fuel chamber depth mm 370 560 560 750 1085
fuel chamber height mm 490 490 750 730 730
fuel chamber width mm 440 440 440 575 575
dimension of the filling hole w/h mm 435/255 435/255 435/255 575/318 575/318
fuel chamber capacity, volume liter approx. Liter 80 116 180 310 455
max. filling weight (beech) approx kg 20 30 48 80 120
fuel consumption at nominal load (beech) approx. kg/h 4,5 7,1 11,2 17 25
combustion period at nominal load (beech) approx. hrs 4,4 4,2 4,3 4,5 4,5
Exhaust gas routing
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
recommended min. chimney cross section Ø mm 140 150 180 180 200
draft requirements Pa 15‐25 15‐25 15‐25 15‐30 15‐30
effective minimum chimney height m approx. 7 mtr
exhaust gas mass flow (at 13% CO2)g/s 10 16 25 38 64
modulating exhaust gas temperature °C approx. 180 (±30)
recommended exhaust gas routing m effecve length < 1,5 mtr (max. 2 bends)
barometric damper recommended
Hydraulic
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
min. buffer tank volume1l 1000 1500 2200 3300 5500
manufacturer’s recommendation1l 1500 2000 3000 5000 6000
min. tube dimension (CU‐/steel presision tube)² mm Ø 28 Ø 28 Ø 35 Ø 42 Ø 54
min. tube dimension (steel tube)² – DN25/1” DN25/1” DN32/1¼” DN40/1½” DN50/2”
recommended boiler return line temperature °C 70 °C
1
Regulatory framework and government grants should to be paid attention to.
²Depending on tube length, number of elbows installed, mixing valves, changeover valves, etc., you might need a bigger dimension. The above
mentioned tube dimensions are only a recommendation and do not replace professional technical planning.

© Solarbayer GmbH [02.16] 11
PRODUCT INFORMATION Wood log boiler HVS
General Information
D
E
F
G
H
I
min. 300 mm
HVS 16 bis 40
min. 800 mm
HVS 60 bis 100
min.1600 mm
A
B
C
wall distance both sides
min. 400 mm
It is necessary that you follow the minimal installation distances.
The maintenace openings have to be accessible,
please pay attention to the fact that the turbulators have to be pulled out for cleaning
Dimension and weight
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
height A mm 1135 1135 1370 1420 1420
width B mm 590 590 590 760 760
width inlcuding slider C mm 645 645 645 785 785
depth D mm 840 1070 1070 1260 1650
height flow line E mm 1075 1075 1310 1400 1400
height exhaust pipe (middle) F mm 890 890 1110 1170 1170
height return line G mm 115 115 125 215 215
height draining H mm 55 55 70 135 135
flue spigot Ø mm Ø 159 Ø 159 Ø 196 Ø 196 Ø 196
boiler flow line/boiler return line Ø –
DN50 (2” IG)
safety heat exchanger Ø –
DN20 (¾”)
immersion sleeve for safety heat exchanger Ø –
DN15 (½”)
draining Ø –
DN15 (½”) DN20 (¾”)
boiler weight kg 400 430 460 760 950
Electrical data
HVS 16 LC HVS 25 E
HVS 25 LC
HVS 40 E
HVS 40 LC
HVS 60 E
HVS 60 LC
HVS 100 E
HVS 100 LC
mains voltage/frequency V/Hz 230/50
power consumption – standby (AK4000D/AK4000S) W 1,22
power consumption – standby (AK4000D/AK4000S) 1,67
power consumption – operation (HVS E/LC) W 55 40 / 55 40 / 55 80 / 95 80 / 95
Installaon dimensions

12 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
Installation
Safety regulaons – installaon guidlines

The following safety installations are mandatory:
1 Boiler charging unit*
see chapter: [Installaon] Boiler charging unit
The opening temperature of the boiler charging unit should be approx. 72°C in order to prevent condensation and corrosion
and to guarantee a sufficient operating temperature.
2 Boiler safety unit* (safety valve, manometer and quick vent valve)
The boiler has to be safeguarded by a licensed and type‐certified safety valve in accordance with DIN EN ISO 4126‐1:2013‐12
with a reaction pressure of max. 3 bar.
The connection between boiler and safety valve has to be unlockable.
3 Thermal discharge safety valve* according to DIN EN 14597
see chapter: [Installaon] Thermal discharge safety valve
The thermal discharge safety has to be unlockable connected to a pressurized mains water system.
When the cold water pressure is 6 bar a pressure relief valve is necessary.
4 Membrane expansion vessel* according to DIN EN 13831
The vessel has to be dimensioned according to DIN EN 12828.
5 Cap valve*
6 Buffer tank*
We recommend the installation of a strification buffer tank with a tank capacity of at least 55 liters per kW nominal boiler out‐
put. General local requirements and criteria for eligibilty have to be regarded.
*The installation notes of the manufacturer have to be regarded.
An annual check of the safety devices by a specialized company is mandatory.
absorption
air separator
da‐airing

© Solarbayer GmbH [02.16] 13
PRODUCT INFORMATION Wood log boiler HVS
Installation
Installation

14 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
Installation
Tank sensor
The buffer tank sensor (PT 1000) has to be installed at the corresponding position in the buffer tank.
The measurement of the tank temperature is for information use only and has no influence on the control of the
boiler.
tank sensor
The buffer tank sensor should be installed aer ⅔ of
the buffer tank volume.
tank sensor
Buffer tank (mandatory)
To improve the effificiency of the wood log boiler and to ensure low emission operation it is mandatory to use
Solarbayer SPS buffer tanks with their patented SLS ® ‐system.
The advantages are:
‐ immediate availability of heat
‐ perfect stratification
‐ rapid achievement of the required return line temperature for
a long operating life.

© Solarbayer GmbH [02.16] 15
PRODUCT INFORMATION Wood log boiler HVS
Installation
Technical information and installation manual come with the product and could be downloaded on:
www.solarbayer.de
straficaon buffer
tank SPS
adapter
①
③
②
① flow line; ② return line buffer tank; ③ return line boiler
connecon diagram shows Laddotronic 25/7‐A
pump connecon
sensor
Boiler charging unit (mandatory)
A boiler charging unit is obligatory to achieve the required combustion values as well as to prevent the
accumulation of condensing water and thus the corrosion of the boiler body. Only Solarbayer boiler charging units
shall be used for that.
The integrated pump is connected directly to the HVS motherboard (control board),
see chapter: [Installation] Electric circut diagram
During operation the pump is running at a flow line temperature of approximately 40°C. Independent of the ope‐
rating mode the pump is running when the maximum boiler flow line temperature set is exceeded
(overheat control).
In case of a breakdown/failure of the boiler/exhaust gas sensor the pump is working permanently for safety
reasons.
The pump activity is displayed by a rotating line on the control panel.
79
°
C
07:16
79.2°C
λ
Boiler version HVS LambdaControl (HVS LC):
You have to use the Solarbayer boiler charging unit LaddoTRONIC
Boiler version HVS Economic (HVS E):
We recommend the use of the Solarbayer boiler charging unit LaddoTRONIC

16 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
Installation
Thermal discharge safety valve (mandatory)
In accordance with DIN 4751‐2 a thermal discharge safety valve is prescribed for heating systems with solid fuels.
Safety heat exchanger and thermal discharge safety valve:
The safety heat exchanger with the thermal discharge safety valve conduces to the boiler’s protection against
overheating.
Installation of the thermal discharge safety valve:
It is important that the thermal discharge safety valve is installed in such a way that the heat exchanger is
depressurized during regular operation, meaning that it is not in a closed system. The thermal discharge safety
valve has to be connected unlockable to a pressurized mains water network. The drain outlet has to lead free.
Operating mode:
The valve that is independent of pressure opens a waterway at a flow line temperature of approx. 95 °C and thus
prevents a temperature increase over a maximum of 110 °C.
1 boiler wall
2 welded seam
3 welded socket
4 flat seal
5 washer
6 double nipple
7 CU tube heat exchanger
(18 mm)
Sealing of the copper tube
for the thermal discharge safety valve
double nippel
flat seal
flat washer
①
②
③
④⑤
⑥
⑦
The double nipple together with the flat
seals and the shims for sealing the safety
heat exchanger from the boiler water are
already equipped by the manufacturer.
Do not turn the double nipple in order to
adjust or to hold in place. In case of a
leakage at the safety outlet the double
nipple have to be retightened with a pipe
wrench.

© Solarbayer GmbH [02.16] 17
PRODUCT INFORMATION Wood log boiler HVS
Thermal discharge safety valve

thermal discharge safety valve ¾“, cold water inlet
 Immersion sleeve with double temperature protector
 cold water outlet

Please check the safety valve’s function when heating up the boiler for the first time by heating up the
boiler to opening temperature.



Solarbayer 16 kW, 25 kW and 40 kW
Solarbayer 60 kW und 100 kW
Installation
According to regulation DIN 4751‐2 the operator of the
system is obligated to get the thermal discharge safety
valve checked by a specialist at least once a year.

18 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
Installation
Technical information and installation manual come with the product and could be downloaded on:
www.solarbayer.de
ON
25 kW
46.2°C300s
λ
+60 0
The activity of the exhaust gas fan is displayed by a rotating line in the
control panel
When operating the boiler with an exhaust gas fan the corresponding
mode has to set in the menu of the control panel
see chapter: [Operation] Expert level (2.5: Configuration)
λ
2.5.1.1 HVS25L
λ yes
yes
yes
Exhaust gas fan (oponal accessory)
In order to support the fume outlet while putting more fuel into the
boiler an exhaust gas fan can be retrofitted.
Thus, the fume outlet is minimized while the fuel chamber door is
open.
The exhaust gas fan is directly connected to the HVS control unit,
see chapter: [Installation] Electric circuit diagram

© Solarbayer GmbH [02.16] 19
PRODUCT INFORMATION Wood log boiler HVS
Flue pipe and barometric damper (oponal accessory)
• The chimney has to be designed according to DIN 4705 respectively EN 13384. Please contact the responsible
inspecting authority (e.g. chimney sweeper) in case of ambiguities.
• The flue gas pipe has to be ascending to the chimney, in the correct and shortest way.
A maximum of two bends may be installed, further formed parts cause a higher decrease in pressure.
• When connecting a fireplace to an exhaust gas system a secure exhaust gas outlet has to be provided.
The exhaust gas systems have to be designed according to clear section, height and thermal resistance in such a
way that the exhaust gases are, during all normal operating modes, only lead to the outside through the
chimney, no overpressure occurs and that the fireplaces have enough combustion air.
• It is NOT allowed to connect more than one fireplace to the chimney when using a wood gasification boiler due
to the forced draft fan.
barometric damper
mandatory accessory
Installation
The application of a barometric damper is mandatory. It is only with a barometric damper that the
combustion values and the chimney draft can be guaranteed permanently.
Chimney draft: see chapter: [General information] Technical data
effective minimum chimney height
: see: [General information] Technical data
exhaust gas routing to the chimney:
straight length < 1,5 m

20 © Solarbayer GmbH [02.16]
PRODUCT INFORMATION Wood log boiler HVS
Installation
Electrical connecon
The regulations and standards of the VDE (German Association for Electrical, Electronic & Information
Technologies) and of the local power utilities have to be regarded.
The connection has to be carried out by a concessionary electrician.
Disconnect all components from power!
Never touch any current‐carrying parts, danger to life exists!
The boiler is equipped with a shockproof plug.
The following components have to be connected at site:
boiler circuit pump (original Solarbayer boiler circuit unit)
cable 3x 1,5 mm²
exhaust gas fan (optional)
cable 3x 1,5 mm²
safety temperature limiter STB
grounding
boiler cover
Disconnect power before opening the control unit’s casing.
Never touch any system component that is current‐carrying – danger to life exists!
connectors for control panel SB 4.0 D
and module for sowareupdate AK 4000 M
control and lambda board AK 4000 SL (with HVS LC)
control board AK 4000 S (with HVS E)
switched‐mode
power supply
(only with HVS LC)
grounding
boiler casing
Figure shows HVS LC