THERMOROSSI BOSKY series Operating manual

36011 Arsiero (vi) ITALY - Via Grumolo, 4 - tel. [phone] fax [phone]
www.thermorossi.com
USE AND MAINTENANCE GUIDE
CENTRAL HEATING COOKER
25 - 30 - F25 - F30 - 60 - 65 - 650 - 90 - 95 - 920

pg. 2
DECLARATION OF CONFORMITY
1. INTRODUCTION .................................................................................................................................................................................
1.1 General guidelines .............................................................................................................................................................
1.2 Safety guidelines ................................................................................................................................................................
1.3 Standards and recommendations .....................................................................................................................................
1.4 Transport and storage ........................................................................................................................................................
2. TECHNICAL CHARACTERISTICS ....................................................................................................................................................
2.1 Vitrification..........................................................................................................................................................................
3. GENERAL DESCRIPTION ..................................................................................................................................................................
3.1 Operating principle ............................................................................................................................................................
3.2 Wood fuel ............................................................................................................................................................................
4. INSTALLATION ..................................................................................................................................................................................
4.1 Locating your Bosky central heating cooker. ...................................................................................................................
4.2 Installing the safety heat exchanger (only for 25 - 30 - F25 - F30 ) ................................................................................
4.3 Wiring diagram 25 - 30. ...............................................................................................................................................
4.4 Wiring diagram F25 - F30. ..............................................................................................................................................
4.5 Wiring diagram 60 - 65 - 650 - 90 - 95 - 920 without electric oven .................................................................................
4.6 Wiring diagram 60 - 65 - 650 - 90 - 95 - 920 with electric oven ......................................................................................
4.7 Guidelines for the hydraulic connections of the central heating cooker to the boiler coils ..........................................
4.8 Guidelines for the hydraulic connections of the central heating cooker to the boiler tubes with interspacing ...........
4.9 Recommendations for the execution of the hydraulic and electric system ....................................................................
4.10 Installation of casing for Bosky 25-30-F25-F30. ..............................................................................................................
5. OPERATION .........................................................................................................................................................................................
5.1 Description of parts and main controls of the central heating cookers ..........................................................................
5.2 Lighting and starting the central heating cookers ............................................................................................................
5.3 Operation of the central heating cookers .........................................................................................................................
5.4 Grate positions in the central heating cookers ..................................................................................................................
5.5 How to use the oven in central heating cookers F25-F30-60-90-920 .............................................................................
5.6 The fold-away towel rack (only for 25 - 30 - F25 - F30 ) ..................................................................................................
6. CLEANING AND MAINTENANCE ......................................................................................................................................................
6.1 General cleaning ................................................................................................................................................................
6.2 Ash ...............................................................................................................................................................................................
6.3 How to clean the radiant plate ....................................................................................................................................................
6.4 How to replace the oven light bulb .............................................................................................................................................
6.5 Recommendations ......................................................................................................................................................................
7. SMOKE EXHAUST PIPE .....................................................................................................................................................................
7.1 General. ..............................................................................................................................................................................
7.2 Essential requirements for the chimney cap ....................................................................................................................
7.3 Ventilation of the rooms .....................................................................................................................................................
7.4 Connection with the flue outlet ...........................................................................................................................................
8. TROUBLESHOOTING .........................................................................................................................................................................
8.1 Problems, causes and remedies for Bosky central heating cookers .............................................................................
9. SPARE PARTS ..................................................................................................................................................................................
C O N T E N T SC O N T E N T S
C O N T E N T SC O N T E N T S
C O N T E N T S
“EC” DECLARATION OF CONFORMITY
In accordance with the following directives:
European Directive 73/23 / EEC and its amending directive 93/68/EEC
89/336 / EEC and its amending directives 93/68/EEC 92/31/EEC 93/97/EEC
Thermorossi S.p.A. of Via Grumolo 4 – ARSIERO (VI), on its own responsibility, declares that the central heating cookers of the F25 , F30, 25 ,
30, 60 , 65 , 650 , 90 , 95 , 920 series have been designed and built in compliance with the safety requirements of CE marking standards. This
declaration refers to the complete range of products in the specified series.
ARSIERO, 1 March 2003 THERMOROSSI S.p.A.

pg. 3
11
11
1INTRODUCTIONINTRODUCTION
INTRODUCTIONINTRODUCTION
INTRODUCTION
1.11.1
1.11.1
1.1 GENERAL GUIDELINESGENERAL GUIDELINES
GENERAL GUIDELINESGENERAL GUIDELINES
GENERAL GUIDELINES
This installation, use and maintenance guide is an integral and essential part of the product and must be kept by the user. Before commencing
with the installation, use and maintenance of the product, carefully read all the instructions contained in this booklet. This appliance must only be
used as intended by the manufacturer. Any other use is considered incorrect and therefore hazardous; consequently, the user shall be totally
liable for the product if used improperly.
Installation, maintenance and repairs must be carried out by personnel with professional qualifications and in compliance with current regulatory
standards and in accordance with the instructions of the manufacturer of the appliance. Use only original spare parts. Incorrect installation or
poor maintenance could injure or damage people, animals or things; in this case the manufacturer shall be relieved of all responsibility. Before
commencing any cleaning or maintenance operation ensure that the appliance has been disconnected from the mains power supply by means
of the main system switch or some other disconnecting device installed upstream from the appliance. The product must be installed in locations
suitable for fire-fighting and furnished with all the services (power and outlets) which the appliance requires for a correct and safe operation.
If the appliance is sold or transferred to another user ensure that the guide is handed over with it.
Thermorossi S.p.A. maintains the author’s rights on these service instructions. The information in this booklet may not be reproduced or given
to third parties or used for competitive purposes without the appropriate authorization.
1.2 SAFETY GUIDELINES1.2 SAFETY GUIDELINES
1.2 SAFETY GUIDELINES1.2 SAFETY GUIDELINES
1.2 SAFETY GUIDELINES
PERSONAL INJURY
This safety symbol identifies important messages throughout the manual. When you come across this symbol, read the
following message carefully. Users of the central heating cooker must adhere strictly to the instructions to avoid serious
injury.
DAMAGE TO PROPERTY
This safety symbol identifies messages or instructions that are essential for the correct operation of the cooker and
heating system. These guidelines must be observed scrupulously to avoid serious damage to both the cooker
and the heating system.
INFORMATION
This safety symbol signals instructions that are important for the good operation of the cooker and/or heating
system. The appliances will not function correctly if the instructions are not observed correctly.
1.31.3
1.31.3
1.3 STST
STST
STANDAND
ANDAND
ANDARDSARDS
ARDSARDS
ARDS AND RECOMMENDAND RECOMMEND
AND RECOMMENDAND RECOMMEND
AND RECOMMENDAA
AA
ATIONSTIONS
TIONSTIONS
TIONS
•Normative references: national and international standards used as reference guides for the design, industrialization and
production of the products indicated in this manual
– European Directive 73/23/EEC – standard CEI 61/50
– European Directive 93/68/EEC –standard CEI EN 60204
– European Directive 89/336/EEC –standard CEI64-8 (IEC364)
RECOMMENDATIONS:
Before using the appliance, carefully read every section of this instruction manual as knowledge of the information and the regulations contained
in it are essential for a correct use of the appliance.
The entire operation concerning the connection of the electric panel must be carried out by expert personnel; no responsibility will be accepted
for damages, even to third parties, if the instructions for installation, use and maintenance of the appliance are not followed scrupulously.
Modifications made to the appliance by the user or on his behalf, must be considered to be under his complete responsibility.
The user is responsible for all the operations required for the installation and maintenance of the appliance before and during its use.
GENERAL WARNINGS
Caution: the appliance must be connected to a system provided with a PE conductor (in compliance with the specifications of 73/23/EEC, 93/
98/EEC, concerning low voltage equipment). Before installing the appliance check the efficiency of the earth circuit of the power supply system.
CautionCaution
CautionCaution
Caution:the power supply line must have a section which is suitable for the power of the equipment. The cable section must in any case be
no less than 1.5 mm2. The central heating cooker requires a power supply of 220-240 V and 50 Hz. Voltage variations 10% above or below the
nominal value can cause irregular operation or damage to the electrical device. Ensure that a suitable differential switch is installed upstream from
the equipment.
1.41.4
1.41.4
1.4 TRANSPORTRANSPOR
TRANSPORTRANSPOR
TRANSPORTT
TT
T AND STAND ST
AND STAND ST
AND STORAORA
ORAORA
ORAGEGE
GEGE
GE
•Packaging The central heating cookers models 25-30-F25-F30 are packaged in a wooden crate, whereas the other
models are packaged in a cardboard box.
•Transport and handling The central heating cooker must be kept in a vertical position and moved exclusively by means of trolleys;
take particular care not to damage the glass components.
•Storage The central heating cooker must be stored in humid free environments sheltered from the weather; it is
inadvisable to store the central heating cooker directly on the floor.

pg. 4
22
22
2 TECHNICAL CHARACTERISTICSTECHNICAL CHARACTERISTICS
TECHNICAL CHARACTERISTICSTECHNICAL CHARACTERISTICS
TECHNICAL CHARACTERISTICS
636
482 Attaccocamino 150O
642
869
126
Ritorno 1" 1/4
mod. BOSKY 25-30
Andata 1" 1/4
707
669
310
71
75
714
785
Scaricotermico1/2 "
636
482 Attaccocamino 150O
1055
869
126,4
mod.BOSKY F25-F30
482
Ritorno1" 1/4
707
310
71
75
669 714
785
Scaricotermico1/2"
Andata1" 1/4
Key
Flue outlet
connection
Delivery
Return
Thermal
discharge
Legenda
Attacco
Camino
Andata
Ritorno
Scarico
termico

pg. 5
636
482 Attaccocamino 150O
1055
869
126,4
mod.BOSKY F25-F30
482
Ritorno1" 1/4
707
310
71
75
669 714
785
Scaricotermico1/2"
Andata1" 1/4
Key
Flue outlet
connection
Delivery
Return
Thermal
discharge
Model
Rear view
Side view
View from
above
Technical
Characteristics
Legenda
Attacco
Camino
Andata
Ritorno
Scarico
termico
Modello
Vista posteriore
Vista laterale
Vista dall'alto
Caratteristiche
tecniche

pg. 6
ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET 029YKSOB 029YKSOB 029YKSOB 029YKSOB 029YKSOB 06YKSOB 06YKSOB 06YKSOB 06YKSOB 06YKSOB 09YKSOB 09YKSOB 09YKSOB 09YKSOB 09YKSOB
WkyticapacxoberiF
6,92 3,52 6,92
WkyticapaclufesU
4,42 9,02 4,42
potkoocmorfnoitaidartaeH
Wk
777
mmhtdiW
0111 099 0401
mmhtpeD
536 006 006
mmthgieH
058 058 058
mm.midgninepodeeF
481Lx261H 481Lx261H 481Lx261H
mmxamhtdiwxoberiF
003 052 003
mmxamhtpedxoberiF
244 244 244
mmxamthgiehxoberiF
535 535 535
mmhtdiwnevO
063 063 063
mmhtpednevO
035 035 035
mmthgiehnevO
023 023 023
mm.midpotkooC
074x079 005x009 005x059
mm.DteltuoeulF
051 051 051
.thgiehteltuoekomsraeR
mm
017 076 076
.DsnoitcennocgnitaeH
4/1"1 4/1"1 4/1"1
tltnetnocydobrelioB
52 02 52
mmyenmihcybderiuqer.caV
nmulocretaw
.
2- 2- 2-
gKhgiewlatoT
592 062 572
ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET 056YKSOB 056YKSOB 056YKSOB 056YKSOB 056YKSOB 56YKSOB 56YKSOB 56YKSOB 56YKSOB 56YKSOB 59YKSOB 59YKSOB 59YKSOB 59YKSOB 59YKSOB
WkyticapacxoberiF
3,52 3,52 6,92
WkyticapaclufesU
9,02 9,02 4,42
potkoocmorfnoitaidartaeH
Wk
555
mmhtdiW
006 065 016
mmhtpeD
536 006 006
mmthgieH
058 058 058
mm.midgninepodeeF
481LX261H 481LX261H 481LX261H
mmxamhtdiwxoberiF
052 052 003
mmxamhtpedxoberiF
244 244 244
mmxamthgiehxoberiF
535 535 535
mmhtdiwnevO
---
mmhtpednevO
---
mmthgiehnevO
---
mm.midpotkooC
084X025 084X025 035X025
mm.DteltuoeulF
051 051 051
.thgiehteltuoekomsraeR
mm
076 076 076
.DsnoitcennocgnitaeH
4/1"1 4/1"1 4/1"1
tltnetnocydobrelioB
02 02 52
mmyenmihcybderiuqer.caV
nmulocretaw
.
2- 2- 2-
gKhgiewlatoT
791 281 091

pg. 7
33
33
3GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTIONGENERAL DESCRIPTION
GENERAL DESCRIPTION
3.13.1
3.13.1
3.1 OPERAOPERA
OPERAOPERA
OPERATING PRINCIPLETING PRINCIPLE
TING PRINCIPLETING PRINCIPLE
TING PRINCIPLE
•Your central heating cooker has been constructed to satisfy in full all your heating and practical needs.
3.23.2
3.23.2
3.2 THE FUELTHE FUEL
THE FUELTHE FUEL
THE FUEL
Special attention must be given to the characteristics of the wood: like all biomass generators. The good
performance of the generator depends on the type of wood used and on its degree of seasoning.
The recommended fuel is normal wood having a moisture content of 10-20% and a thermal value of 2500-3500 Kcal/Kg. Using the right fuel, and
knowing which is in fact the most appropriate wood to use, is one of the most important aspects concerning the use of your central heating
cooker in order to prevent damaging it and the flue outlet.
All types of solid fuel are suitable but we recommend using only hard and well-seasoned wood.
We advise against using wet wood or wood that has been seasoned for less than 18/20 months, as it can cause malfunctions and the formation
of tarry deposits, as well as not giving the correct thermal performance. All woods have different heat outputs: for example, 1Kg of beech equals
1.15Kg of birch, 1.6 Kg of fir, 0.5 Kg of briquettes… The heat outputs can also vary considerably depending on the type of fuel used and on the
size of the piece of wood. Using pieces of wood that are too thick cannot guarantee the declared power yield. Do not burn generic waste or
plastic but above all never use petrol or other inflammable liquids. When using briquettes it is mandatory to halve the fuel consumption.
The use of fuel that does not conform to the specifications set out
above immediately invalidates the warranty on the central heating
cooker.
ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET ATADLACINHCET 52FYKSOB 52FYKSOB 52FYKSOB 52FYKSOB 52FYKSOB 03FYKSOB 03FYKSOB 03FYKSOB 03FYKSOB 03FYKSOB 52YKSOB 52YKSOB 52YKSOB 52YKSOB 52YKSOB 03YKSOB 03YKSOB 03YKSOB 03YKSOB 03YKSOB
WkyticapacxoberiF
3,52 6,92 3,52 6,92
WkyticapaclufesU
9,02 4,42 9,02 4,42
WkpotmorfnoitaidartaeH
7755
mmhtdiW
5501 5501 246 246
mmhtpeD
636 636 636 636
thgieH
mm
968 968 968 968
mm.midgninepodeeF
532x012 532x012 532x012 532x012
mmxamhtdiwxoberiF
003 003 003 003
mmxamhtpedxoberiF
244 244 244 244
mmxamthgiehxoberiF
045 045 045 045
mmhtdiwnevO
063 063 -
-
mmhtpednevO
055 055 -
-
mmthgiehnevO
023 023 -
-
mm.midpotkooC
525x249 525x249 525x525 525x525
mm.DteltuoeulF
051 051 051 051
thgiehteltuoekomsraeR
mm
707 707 707 707
.DsnoitcennocgnitaeH
4/1"1 4/1"1 4/1"1 4/1"1
ltnetnocydobrelioB
72 72 72 72
mmyenmihcybderiuqer.peD
.nmulocretaw
2- 2- 2- 2-
gKthgiewlatoT
403 403 122 122
2.12.1
2.12.1
2.1 VITRIFICAVITRIFICA
VITRIFICAVITRIFICA
VITRIFICATIONTION
TIONTION
TION
The central heating cookers series 25 - 30 - F25 - F30 - 60 - 65 - 90 - 95 can be supplied boiler body with vitrification
treatment. This treatment occurs at very high temperatures that permit the glass and steel to melt into an alloy
that is completely impervious to corrosion attack caused by acid combustion smoke. Vitrification protects the
boiler body from corrosion caused by acid smoke and condensation developed by the combustion of the wood
fuel. The presence of surface defects such as indents, scratches, etc..., do not affect the life or resistance of the
corrosion proofing treatment.

pg. 8
44
44
4INSTINST
INSTINST
INSTALLAALLA
ALLAALLA
ALLATIONTION
TIONTION
TION
4.1 L4.1 L
4.1 L4.1 L
4.1 LOCAOCA
OCAOCA
OCATINGTING
TINGTING
TING THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATING COOKERTING COOKER
TING COOKERTING COOKER
TING COOKER
4.1.1 INSET CENTRAL HEA4.1.1 INSET CENTRAL HEA
4.1.1 INSET CENTRAL HEA4.1.1 INSET CENTRAL HEA
4.1.1 INSET CENTRAL HEATING COOKERTING COOKER
TING COOKERTING COOKER
TING COOKER


To install the safety heat exchanger remove the
vertical door, the left side together with its
insulation and the vertical upright that holds the
door together with its screws as indicated.
Slide in the heat exchanger (1) and secure it to
the boiler using the hardware (2) provided.
Close the hole with the plug (3). By installing a
thermal relief valve the excess heat is absorbed
as soon as the central heating cooker rises to
excessive temperature values due to external
causes. This function is called fast disconnection
phase.
450mmse
pareteinlegno
450mmse
soffittoinlegno
soffittoinmuratura
250mmse
450 mm for a timber ceiling
250 mm for a masonry ceiling
450 mm for a timber wall
4.24.2
4.24.2
4.2 MOUNTINGMOUNTING
MOUNTINGMOUNTING
MOUNTING THE SAFETY HEATHE SAFETY HEA
THE SAFETY HEATHE SAFETY HEA
THE SAFETY HEAT EXT EX
T EXT EX
T EXCHANGERCHANGER
CHANGERCHANGER
CHANGER
(OPTION(OPTION
(OPTION(OPTION
(OPTIONAL) (ONLAL) (ONL
AL) (ONLAL) (ONL
AL) (ONLY FOR 25 - 30 - F25 - F30)Y FOR 25 - 30 - F25 - F30)
Y FOR 25 - 30 - F25 - F30)Y FOR 25 - 30 - F25 - F30)
Y FOR 25 - 30 - F25 - F30)
A vital aspect to consider is that the flooring of the room in which the central
heating cooker is installed must be capable of bearing the weight of the
central heating cooker.
CAUTION: The room in which the central heating cooker is installed must be
adequately ventilated (1300 m3/h). Ensure that there is always a minimum
75mm safety gap between the central heating cooker and walls or
combustable materials. If inflammable items are positioned near the central
heating cooker (matchboarding, furniture, curtains, wall hangings, sofas,
etc...), this gap must be increased considerably. Adhere to the recommended
minimum distances illustrated in the drawing on the right. It is permissible to
install the heater near materials that are sensitive to heat as long as suitable
insulating protection is placed between the material and the heater (ref. UNI
10683).
For inset installations ensure that the top cast iron cornice is insulated from the surrounding
furnishings by means of lateral air spaces or compressed vermiculite insullation board
If you wish to integrate your central heating cooker with your kitchen furnishings or with a particular furnishing arrangement
remove the fold-away towel rack by undoing the 2 screws as illustrated in the figure below and then mount the enamelled
casing (only for models 25 - 30 - F25 - F30 ) . It is also advisable to apply 75mm spacers to the sides of the central heating
cooker to prevent the heat from the top cast iron cornice from damaging the adjacent furniture.

pg. 9
4.44.4
4.44.4
4.4 WIRING DIAGRAM F25 - F30
The electrical connections must be made before mounting the left side panel as the terminal block is located behind the
left side panel (see the figure below on the right).
CAUTION: IT IS MANDATORY TO EARTH THE CENTRAL HEATING COOKER AS ILLUSTRATED IN THE ABOVE DIAGRAM. IF
THIS INSTRUCTION IS NOT OBSERVED SERIOUS DAMAGE, WHICH IS NOT COVERED BY WARRANTY, WILL RESULT TO THE
BODY OF THE CENTRAL HEATING COOKER. HAVE AN ELECTRICIAN CHECK THE EARTHING. THERE MUST BE NO ELECTRIC
POTENTIAL (VOLTS) BETWEEN THE EARTH OF THE CENTRAL HEATING COOKER EARTH AND THE ACTUAL EARTH OF THE
PLANT.
CAUTION: IT IS MANDATORY TO EARTH THE CENTRAL HEATING COOKER AS ILLUSTRATED IN THE ABOVE DIAGRAM. IF
THIS INSTRUCTION IS NOT OBSERVED SERIOUS DAMAGE, WHICH IS NOT COVERED BY WARRANTY, WILL RESULT TO THE
BODY OF THE CENTRAL HEATING COOKER. HAVE AN ELECTRICAIN CHECK THE EARTHING. THERE MUST BE NO ELECTRIC
POTENTIAL (VOLTS) BETWEEN THE EARTH OF THE CENTRAL HEATING COOKER EARTH AND THE ACTUAL EARTH OF THE
PLANT.


450mmse
pareteinlegno
450mmse
soffittoinlegno
soffittoinmuratura
250mmse
The electrical connections must be made before mounting the left side panel as the terminal block is located behind the
left side panel (see the figure below on the right).
4.34.3
4.34.3
4.3 WIRING DIAGRAM 25 - 30
Key
pump
circulating pump
anticondensation thermostat
Key
pump
circulating pump
anticondensation
thermostat
oven light
Legenda
pompa
circolatore
anticondensa
Legenda
pompa
circolatore
anticondensa
luce forno

pg. 10
4.54.5
4.54.5
4.5 WIRING DIAGRAM 60 - 65 - 90 - 95 - 650 - 920 WITHOUT ELECTRIC OVEN
4.64.6
4.64.6
4.6 WIRING DIAGRAM 60 - 65 - 90 - 95 - 650 - 920 WITH ELECTRIC OVEN
CAUTION: IT IS MANDATORY TO EARTH THE CENTRAL HEATING COOKER AS ILLUSTRATED IN THE ABOVE DIAGRAM.
IF THIS INSTRUCTION IS NOT OBSERVED SERIOUS DAMAGE, WHICH IS NOT COVERED BY WARRANTY, WILL RESULT TO
THE BODY OF THE CENTRAL HEATING COOKER. HAVE AN ELECTRICAIN CHECK THE EARTHING. THERE MUST BE NO
ELECTRIC POTENTIAL (VOLTS) BETWEEN THE EARTH OF THE CENTRAL HEATING COOKER EARTH AND THE ACTUAL
EARTH OF THE PLANT.
Connect the wiring to the terminal block located in the left side.
Connect the wiring to the terminal block located in the left side.
PUMP CONNECTION
Connect the pump to terminals no. 4 and 5
and make a bridge connection for terminals
no. 5 and 6
Key
pump
pump
switch
bridge
power
line
circulating
pump
anticondensation
thermostat
anticondensation
thermostat
PUMP CONNECTION
Connect the pump to terminals no. 4 and 5
and make a bridge connection for terminals
no. 5 and 6
CAUTION: IT IS MANDATORY TO EARTH THE CENTRAL HEATING COOKER AS ILLUSTRATED IN THE ABOVE DIAGRAM.
IF THIS INSTRUCTION IS NOT OBSERVED SERIOUS DAMAGE, WHICH IS NOT COVERED BY WARRANTY, WILL RESULT TO
THE BODY OF THE CENTRAL HEATING COOKER. HAVE AN ELECTRICAIN CHECK THE EARTHING. THERE MUST BE NO
ELECTRIC POTENTIAL (VOLTS) BETWEEN THE EARTH OF THE CENTRAL HEATING COOKER EARTH AND THE ACTUAL
EARTH OF THE PLANT.
KEY
pump
pump switch
bridge
power line
oven heating
element
power line
circulating pump
electric oven
switch
anticondensation
thermostat
oven element
control thermostat
Legenda
pompa
interruttore
pompa
ponte
linea
alimentazione
circolatore
anticondensa
termostato
anticondensa
Legenda
pompa
interruttore pompa
ponte
linea alimentazione
resistenza
forno
linea alimentazione
circolatore
interruttore forno
elettrico
termostato
anticondensa
termostato comando
resistenza forno

pg. 11
A:Andataimpiantoriscaldamento.
R:Ritornoimpiantoriscaldamento.
E:Tubodi sicurezzachevadallacaldaia
al vasodi espansioneaperto.
S:Scaricodellacaldaia
PC:Pompacircolazioneimpianto
VI:Valvoladi intercettazione
VNR:Valvoladi ritegno
VST:Valvoladi scaricotermico
VS: Valvoladi sicurezza
4.94.9
4.94.9
4.9 RECOMMENDRECOMMEND
RECOMMENDRECOMMEND
RECOMMENDAA
AA
ATIONS FORTIONS FOR
TIONS FORTIONS FOR
TIONS FOR THE EXECUTION OFTHE EXECUTION OF
THE EXECUTION OFTHE EXECUTION OF
THE EXECUTION OF THE HYDRATHE HYDRA
THE HYDRATHE HYDRA
THE HYDRAULICULIC
ULICULIC
ULIC AND ELECTRIC SYAND ELECTRIC SY
AND ELECTRIC SYAND ELECTRIC SY
AND ELECTRIC SYSTEMSTEM
STEMSTEM
STEM
THERMOROSSI DECLINES ALL RESPONSIBILITY FOR THE CORRECT FUNCTIONING AND DURATION OF THE
APPLIANCE IF ALL OF THE ABOVE GUIDELINES ARE NOT OBSERVED. NO TECHNICAL SERVICING BY OR ON
BEHALF OF THERMOROSSI, CAUSED BY THE NON-OBSERVANCE OF THESE RECOMMENDATIONS, WILL BE
COVERED BY WARRANTY.
Before installing your central heating cooker we recommend that your flue outlet has a suitable draught.
We recommend connecting the plant circulating pump to the central heating cooker’s control panel.
We recommend installing nonreturn valves to prevent natural circulation phenomena between the central heating cooker and the
plant (see drawing par. 4.5 - 4.6 - 4.7 - 4.8 ). The presence of open boilers causes natural circulation on the water surface with
subsequent oxygenation of the water. The presence of natural circulation produces condensation and can consequently cause
corrosion to parts of the central heating cooker.
We recommend you earth the central heating cooker and check the efficiency of the earthing of the electrical system to which the
central heating cooker is connected.
A:Andataimpiantoriscaldamento.
R:Ritornoimpiantoriscaldamento.
E:Tubodi sicurezzachevadallacaldaia
al vasodi espansioneaperto.
S:Scaricodellacaldaia
PC:Pompacircolazioneimpianto
VI:Valvoladi intercettazione
VNR:Valvoladi ritegno
VST:Valvoladi scaricotermico
VS: Valvoladi sicurezza
4.8 GUIDELINES FOR4.8 GUIDELINES FOR
4.8 GUIDELINES FOR4.8 GUIDELINES FOR
4.8 GUIDELINES FOR THE HYDRATHE HYDRA
THE HYDRATHE HYDRA
THE HYDRAULIC CONNECTIONS OFULIC CONNECTIONS OF
ULIC CONNECTIONS OFULIC CONNECTIONS OF
ULIC CONNECTIONS OF THETHE
THETHE
THE
CENTRAL HEACENTRAL HEA
CENTRAL HEACENTRAL HEA
CENTRAL HEATING COOKERTING COOKER
TING COOKERTING COOKER
TING COOKER TT
TT
TOO
OO
O THETHE
THETHE
THE AIR-CASED BOILER.AIR-CASED BOILER.
AIR-CASED BOILER.AIR-CASED BOILER.
AIR-CASED BOILER.
Installation of the
optional boiler
discharge
A: heating plant delivery
R: heating plant return
E: safety pipe that runs from the
boiler to the open expansion tank
S: boiler discharge
PC: plant circulating pump
V: on-off valve
VNR: nonreturn valve
VST: thermal relief valve
VS: safety valve
discharge
AIR-CASED BOILER
4.74.7
4.74.7
4.7 GUIDELINES FORGUIDELINES FOR
GUIDELINES FORGUIDELINES FOR
GUIDELINES FOR THE HYDRATHE HYDRA
THE HYDRATHE HYDRA
THE HYDRAULIC CONNECTIONS OFULIC CONNECTIONS OF
ULIC CONNECTIONS OFULIC CONNECTIONS OF
ULIC CONNECTIONS OF THE CENTRALTHE CENTRAL
THE CENTRALTHE CENTRAL
THE CENTRAL
HEAHEA
HEAHEA
HEATING COOKERTING COOKER
TING COOKERTING COOKER
TING COOKER TT
TT
TOO
OO
O THE BOILER COILSTHE BOILER COILS
THE BOILER COILSTHE BOILER COILS
THE BOILER COILS..
..
.

pg. 12
Next mount the wood drawer front (only for F25 - F30 ) (see
figure on next page on the right).
- Slide in the wood drawer front (F) complete with handle.
- Fasten the front with 9 self-tapping screws TC+ 3.9X13
black z..
Next mount the oven door (only for F25 - F30 ).
- Fix the hooks (C) to the hinges (D) on the oven
door. (see figure on right)
- Slide the oven door into the lodgings as indicated
in the figures on the side.
- Release the lock (E) as indicated in the figure
below.
4.10 INST4.10 INST
4.10 INST4.10 INST
4.10 INSTALLAALLA
ALLAALLA
ALLATION OF CASING FOR BOSKY 25 - 30 - F25 - F30TION OF CASING FOR BOSKY 25 - 30 - F25 - F30
TION OF CASING FOR BOSKY 25 - 30 - F25 - F30TION OF CASING FOR BOSKY 25 - 30 - F25 - F30
TION OF CASING FOR BOSKY 25 - 30 - F25 - F30
After positioning the central heating cooker, connecting the electrical system and the hydraulic system (only if using the rear delivery and
return outlets) (see para. 4.2 - 4.3 - 4.4 - 4.5 - 4.6 - 4.7 - 4.8 - 4.9 ) proceed with the installation of the casing as illustrated in the images
below:
Firstly mount the front profile (figure below right): -Lift and move away the cooktop (A) -Insert the front profile (B) in the cast iron housing.
Fix the profile with the hardware specified below. -Next replace the cooktop (A).
Then mount the vertical door (figure below left) : -Mount the door on the hinges as indicated by the arrows in the drawing on the left. Align
the vertical door by adjusting the hinges.
Key
screw
nut
Legenda
vite
dado

pg. 13
Then mount the left side panel
complete with insulation (see figure
on left):
-Fit the tabs (G) into the rectangular
holes under the left side cornice
-Fit the tabs (H) into the holes in the
base and push the side panel back
until it locks in, then secure using
the 2 screws indicated.
Mount the right side panel using the
same procedure.
A- Manopolaregolazionetermostato
automaticoariacomburente
B- Interruttoreluceforno(soloF25-F30)
C- Termometroacqua
D- Termostatoanticondensa
E- Indicatoreluminosopompa attiva
F- Starter
G- Flapdeviazionefumi (soloF25-F30)
H- Pozzettosondatermostati etermometro
I - Rosettaravvivatricefuoco
L- Portinacenere
M- Sportellinoispezione
N- Sbloccoleva regolazionegriglia
O- levaregolazionegriglia
P- Scambiatoredi sicurezza(optional)
Q- Portacaricamento
Q
LM
I
P
H
G
O
NE
D
F
A
C
B
55
55
5OPERAOPERA
OPERAOPERA
OPERATIONTION
TIONTION
TION
5.15.1
5.15.1
5.1 DESCRIPTION OF MAIN CONTROLS AND COMPONENTSDESCRIPTION OF MAIN CONTROLS AND COMPONENTS
DESCRIPTION OF MAIN CONTROLS AND COMPONENTSDESCRIPTION OF MAIN CONTROLS AND COMPONENTS
DESCRIPTION OF MAIN CONTROLS AND COMPONENTS
5.1.15.1.1
5.1.15.1.1
5.1.1 DESCRIPTION OF MAIN CONTRDESCRIPTION OF MAIN CONTR
DESCRIPTION OF MAIN CONTRDESCRIPTION OF MAIN CONTR
DESCRIPTION OF MAIN CONTROLSOLS
OLSOLS
OLS AND COMPONENTS OF CENTRAL HEAAND COMPONENTS OF CENTRAL HEA
AND COMPONENTS OF CENTRAL HEAAND COMPONENTS OF CENTRAL HEA
AND COMPONENTS OF CENTRAL HEATINGTING
TINGTING
TING
COOKERS 25 - 30 - F25 - F30COOKERS 25 - 30 - F25 - F30
COOKERS 25 - 30 - F25 - F30COOKERS 25 - 30 - F25 - F30
COOKERS 25 - 30 - F25 - F30
The main controls and components listed below are located behind the enamelled door on the boiler side and on the top
surface.
A Automatic combustion air thermostat
adjustment knob
B Oven light switch (only F25 - F30)
G Water thermometer
D Anticondensation thermostat
E Pump active illuminated indicator
F Starter
G Smoke deviator flap (only F25 - F30)
H Thermostat probe and thermometer pocket
I Adjustment ring for rekindling the fire
L Ash door
M Inspection door
N Grate adjustment handle release
mechanism
O Grate adjustment handle
P Safety heat exchanger
Q Feed door

pg. 14
5.2 LIGHTING5.2 LIGHTING
5.2 LIGHTING5.2 LIGHTING
5.2 LIGHTING AND STAND ST
AND STAND ST
AND STARAR
ARAR
ARTINGTING
TINGTING
TING THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATING COOKERSTING COOKERS
TING COOKERSTING COOKERS
TING COOKERS
Before using the central heating cooker make sure that all the movable parts are in position; also remove any labels and
stickers from the glass to avoid having permanent traces remain on the surfaces. Verify that the hydraulic and electric
connections have been made perfectly. REMOVE THE PROTECTIVE ADHESIVE FILM FROM THE COOKTOP.
To start the central heating cooker firstly activate the starter by lifting the pin until it hooks onto the plate by means of the groove on it (see fig.
above and on page F - 9 ; use the tool provided). Leave the adjustment ring I - 14 open. Now make a small fire using paper or cardboard
together with wood chips or small pieces of wood, and keep adding bigger pieces of wood as the fire gets going.
When the combustion is well underway, turn the starter F - 9 to the home position and close the adjustment ring I - 14.
CAUTION: DO NOT FORGET TO CLOSE THE ADJUSTMENT RING! IF IT IS LEFT OPEN THERE IS A SERIOUS RISK OF THE
BOILER OVERHEATING AND SUBSEQUENTLY DAMAGING THE BOILER ITSELF. THIS DAMAGE IS NOT COVERED BY
WARRANTY AS IT WOULD BE THE RESULT OF NEGLIGENCE BY THE USER. IF THE STARTER IS LEFT OPEN THE RESULT
IS LESS HEAT TRANSFER TO THE WATER IN THE CENTRAL HEATING COOKER AS THE ADDITIONAL HEAT EXCHANGER
IS NOT UTILISED.
5.3 OPERA5.3 OPERA
5.3 OPERA5.3 OPERA
5.3 OPERATION OFTION OF
TION OFTION OF
TION OF THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATING COOKERSTING COOKERS
TING COOKERSTING COOKERS
TING COOKERS
Once the heater has been lit and started, the combustion can be increased or reduced by acting on the automatic combustion air thermostat
adjustment knob to adapt the central heating cooker to your heating or cooking needs. In models 60 - 65 - 90 - 95 - 650 - 920 a secondary air
slide is located on the loading door for the ingress of secondary air. The heating pump starts up as soon as the anticondensation thermostat
calibrated at 60°C gives the start signal to the plant circulating pump. The pump switch (only for models 60 - 65 - 650 - 90 - 95 - 920 ) must be
positioned on “1” (ON).
The maximum thermal value is achieved by using fuel having a diameter of 5-7 cm , obviously bigger pieces can be used but
at the expense of less power. To rekindle the fire move the grate to the lowest position. Move the handle (O - 7) forward and
backward several times: this will free the grate slots of the combustion ash.
CAUTION : The wood load must always be suitable for the actual thermal absorption requirements of the plant. Large
firewood loads in limited absorption conditions result in the unburnt wood remaining in the forebox for long periods of time.
This situation encourages the distillation of the wood resulting in the formation of large quantities of gases and vapours that
are only partially burned. The gases condense in the central heating cooker and in the tubes and create tarry deposits.
5.1.25.1.2
5.1.25.1.2
5.1.2 DESCRIPTION OF MAIN CONTRDESCRIPTION OF MAIN CONTR
DESCRIPTION OF MAIN CONTRDESCRIPTION OF MAIN CONTR
DESCRIPTION OF MAIN CONTROLSOLS
OLSOLS
OLS AND COMPONENTS OF CENTRAL HEAAND COMPONENTS OF CENTRAL HEA
AND COMPONENTS OF CENTRAL HEAAND COMPONENTS OF CENTRAL HEA
AND COMPONENTS OF CENTRAL HEATINGTING
TINGTING
TING
COOKERS 60 - 65 - 650 - 90 - 95 - 920 .COOKERS 60 - 65 - 650 - 90 - 95 - 920 .
COOKERS 60 - 65 - 650 - 90 - 95 - 920 .COOKERS 60 - 65 - 650 - 90 - 95 - 920 .
COOKERS 60 - 65 - 650 - 90 - 95 - 920 .
The main controls and components of the central heating cooker are listed below.
1) Automatic primary air regulator
2) Secondary air inlet
3) Front feed door
4) Three-position grate
5) Combustion chamber
6) Top feed hole
7) Grate adjustment lever
8) Oven temperature adjustment lever
9) Starter
10) Oven grill positioner
11) Second oven
12) Oven
13) Boiler thermometer
14) Supplementary air
15) Grate control release lever
16) Anticondensation thermostat
17) Pump switch

pg. 15
During the winter period the grate must remain in the
lowest position in order to guarantee the maximum heat
exchange from the combustion to the boiler and
consequently to the water.
There are 3 grate positions:
5.55.5
5.55.5
5.5 HOHO
HOHO
HOWW
WW
W TT
TT
TO USEO USE
O USEO USE
O USE THE OTHE O
THE OTHE O
THE OVEN IN CENTRAL HEAVEN IN CENTRAL HEA
VEN IN CENTRAL HEAVEN IN CENTRAL HEA
VEN IN CENTRAL HEATINGTING
TINGTING
TING
COOKERS F25 - F30 - 60 - 90 - 920COOKERS F25 - F30 - 60 - 90 - 920
COOKERS F25 - F30 - 60 - 90 - 920COOKERS F25 - F30 - 60 - 90 - 920
COOKERS F25 - F30 - 60 - 90 - 920
By acting on the smoke deviator flap (Drwg on right) the central heating cooker can have 2
operating modes:
-Only heating, in this mode the oven cannot be heated, only the left side of the cook top
plate is heated. In this operating mode the maximum heat output is transferred to the water.
-Heating and cooking, in this mode the oven can be heated, the entire cook top plate is
heated.
Only heating
5.65.6
5.65.6
5.6 THE FOLD-ATHE FOLD-A
THE FOLD-ATHE FOLD-A
THE FOLD-AWW
WW
WAA
AA
AYY
YY
Y TT
TT
TOO
OO
OWELWEL
WELWEL
WEL
RARA
RARA
RACK (ONLCK (ONL
CK (ONLCK (ONL
CK (ONL
Y FOR 25 - 30 - F25Y FOR 25 - 30 - F25
Y FOR 25 - 30 - F25Y FOR 25 - 30 - F25
Y FOR 25 - 30 - F25
- F30)- F30)
- F30)- F30)
- F30)
Central heating cookers models 25 - 30 - F25 - F30
are fitted with 2 practical foldaway racks for
hanging your washing on to dry.
To extend them simply pull out as indicated in the
figure on the right .
O
N
5.45.4
5.45.4
5.4 GRAGRA
GRAGRA
GRATE POSITIONS INTE POSITIONS IN
TE POSITIONS INTE POSITIONS IN
TE POSITIONS IN THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATHE CENTRAL HEA
THE CENTRAL HEATINGTING
TINGTING
TING
COOKERSCOOKERS
COOKERSCOOKERS
COOKERS
Lowered grate and only heating
All the heat is transferred to the water to take full advantage of the wet
surfaces.
Grate all up with flap (para. 5.5) on oven
All the heat is transferred to the cook top, the flame envelopes the oven
completely.
Intermediate grate and flap positions
Intermediate situations are possible by simply positioning the grate and flap in
intermediate positions.
To lift the grate pull the grate handle down gently (O - 7). When the grate is in
the desired position return the lever to its home position. The grate will be lifted
to one of its 3 positions. If the movement is hard, pull the handle back and forth
several times in order to free the grate, before taking it to the top position. It is
easier to perform this operation when there is little fuel.
To lower the grate pull the handle (O - 7) until the grate lifts slightly, lift the
grate adjustment lever release mechanism (N - 15) and shift the handle (O-7)
until the grate is lowered.
Heating and
cooking

pg. 16
6.46.4
6.46.4
6.4 HOHO
HOHO
HOWW
WW
W TT
TT
TO REPLAO REPLA
O REPLAO REPLA
O REPLACECE
CECE
CE THE OTHE O
THE OTHE O
THE OVEN LAMPVEN LAMP
VEN LAMPVEN LAMP
VEN LAMP
(ONL(ONL
(ONL(ONL
(ONL
Y MODELS F 25 - F 30 )Y MODELS F 25 - F 30 )
Y MODELS F 25 - F 30 )Y MODELS F 25 - F 30 )
Y MODELS F 25 - F 30 )
To replace the oven lamp firstly open the oven door. Use a screwdriver or round-tip
blunt knife to lever gently between the glass (V) and the oven back until the glass V
comes off its fastening hooks. Then remove the lamp L and replace it with a new one
type E 14 25 W 230-240 V 300°C. The lamp is not covered by warranty as it is a
consumable object.
66
66
6CLEANING AND MAINTENANCECLEANING AND MAINTENANCE
CLEANING AND MAINTENANCECLEANING AND MAINTENANCE
CLEANING AND MAINTENANCE
6.16.1
6.16.1
6.1 GENERAL CLEANINGGENERAL CLEANING
GENERAL CLEANINGGENERAL CLEANING
GENERAL CLEANING
6.56.5
6.56.5
6.5 RECOMMENDRECOMMEND
RECOMMENDRECOMMEND
RECOMMENDAA
AA
ATIONSTIONS
TIONSTIONS
TIONS
-Every time you stoke the fire use the riddling tool to move the grate. Move the rod O indicated in para. 6.2. The air passage through the
firebox grate must always be unobstructed.
-Every 10 hours of operation at least or whenever necessary clean the ash pans G and P as described in paragraph 6.2.
-Every 2 weeks or whenever necessary clean the internal surfaces of the heat exchanger, the oven and the door K under the oven.
-Always ensure that the fuel fed into the firebox catches fire normally. Always ensure that this occurs to prevent dangerous explosions in
the firebox caused by the accumulation of unburnt gases. If these explosions prove to be rather violent the manufacturer declines all
responsibility for the mechanical resistance of the glass and heater parts.
-Adhere strictly to the declared consumption: max. 8.5 Kg /hour for models 25 - F25 - 60 - 65 - 650 , max.10 Kg /hour for models 30 -
F30 - 90 - 95 - 920.
-Thoroughly clean the heater and smoke evacuation pipes at least twice each season .
THERMOROSSI SPA DECLINES ALL RESPONSIBILITY FOR DAMAGES TO THINGS AND/OR PERSONS CAUSED BY THE
FAILURE TO OBSERVE THESE INSTRUCTIONS.
Before commencing any operation disconnect the central heating cooker from the electrical power outlet. Your central heating cooker does
not require any special maintenance; simply adhere to the simple and basic but regular controls and general cleaning. This will guarantee
regular operation and optimal output at all times. As for all machines that run on solid fuel, the main enemy is undoubtedly the dirt generated
by ash, condensation, poor fuels; consequently it is important to clean the entire central heating cooker twice a year. The air inlets can be
cleaned with an ordinary vacuum cleaner.
However, we recommend having the flue outlet cleaned by a professional chimney sweep.
Caution: The glass and all the glazed steel parts must be cleaned with water and a gentle detergent when
the oven has cooled.
V
L
G
X
PO
K
6.26.2
6.26.2
6.2 ASHASH
ASHASH
ASH
The central heating cookers are fitted with 2 ash pans placed under the firebox base. To access
the pans you need to open the enamelled door of your central heating cooker completely. To
collect the ash simply shift the grate riddling handle (O) (see drwg on right).
We recommend emptying the ash pans (G and P) on a regular basis to prevent them from filling up
completely. It is necessary to regularly clean under the oven by opening the plug K. and vacuuming
the ash deposits . To ensure that your central heating cooker performs efficiently it is advisable to
regularly clean the surfaces of the heat exchanger and of the smoke passages towards the
chimney, using the special equipment provided; to access them remove the cook top plates X as
illustrated in the drawing on the right. The tarry deposits reduce the exchange and consequently
the output as well.
6.36.3
6.36.3
6.3 CLEANINGCLEANING
CLEANINGCLEANING
CLEANING THE HOTHE HO
THE HOTHE HO
THE HOT PLAT PLA
T PLAT PLA
T PLATESTES
TESTES
TES
Clean the hot plates with a normal gentle detergent. After cleaning (for the models with non-vitrified hot plate), protect the
plate by applying a film of oil to keep it clean and shiny. As an alternative to the oil apply a thin film of protective chrome
paste (readily available from your local hardware store). Take care when applying the paste not to indelibly dirty the cast
iron side cornices. If you detect any rust use a lightly abrasive scouring pad to remove it and then proceed to apply the
protective oil or chrome paste.

pg. 17
A flue outlet for the evacuation of combustion products into the atmosphere must satisfy the following requirements :
-be sealed against the penetration of combustion products, watertight and thermally insulated:
-be made from materials capable of resisting normal mechanical stress, heat and the action of the combustion products and condensate
produced by them over long periods of time;
-have vertical runs and be completely free of any narrow sections along its entire length;
-be kept clean at all times as soot or unburnt oil deposits reduce its section and could, if the deposits are large, catch fire inside the flue outlet;
be suitably insulated to avoid phenomena of condensate or cooling of tubes, particularly if located on the external wall of a building;
-be at a suitable distance from combustible or easily inflammable materials separated by means of an air gap or insulation;
-have a clean out chamber for the collection of solid materials and condensate below the first smoke pipe. Access to this chamber must be
possible by means of an opening fitted with an airtight metal door.
-have a circular, square or rectangular internal section: in the latter two the corners must be rounded with a radius measuring a minimum of 20mm;
-have an internal section that is slightly larger than the section of the appliance exhaust pipe; in any case, have the following minimum sections:
for a height of up to 5m 600cm²
for a height between 5 and 7m 400cm²
for a height greater than 7m 300cm²
If the section is too small it reduces the flue outlet draft. If the section is too big it can cause inadequate draft if the section is not insulated.
Whereas if it is well-insulated it can increase the draft.
-be at least 4m from the floor on which the appliance is installed;
-be fitted at the top with a cap that fulfils definite requirements;
-must not be installed in inhabited locations as the flue outlet is always slightly more pressurised that its surroundings.
If you use a large pre-existing chimney, you can adapt it by installing a stainless steel chimney liner, then filling in the spaces between the liner
and the chimney with insulating material.
7.17.1
7.17.1
7.1 GENERAL.GENERAL.
GENERAL.GENERAL.
GENERAL.
Due to the frequent accidents caused by poor functioning of flue outlets installed in private dwellings, we have prepared the following paragraph
to assist the installer in his inspection of the parts concerned with eliminating the gases produced by combustion. The smoke exhaust pipe must
be installed according to UNI 7129/92 and UNI 10683/98.
77
77
7SMOKE EXHAUST TUBESMOKE EXHAUST TUBE
SMOKE EXHAUST TUBESMOKE EXHAUST TUBE
SMOKE EXHAUST TUBE
7.1.17.1.1
7.1.17.1.1
7.1.1 CONNECTION TO THECONNECTION TO THE
CONNECTION TO THECONNECTION TO THE
CONNECTION TO THE
CHIMNEYCHIMNEY
CHIMNEYCHIMNEY
CHIMNEY
The smoke outlet can be connected at the top of the
plate or at the back of the central heating cooker using
the hardware provided as illustrated in the figure on the
right. If you wish to connect the chimney to the back of
the heater then you need to close the top smoke outlet
with the cover provided, remove the perforated cover
from the back and remove the fixed cover by undoing
the screws. Next connect the cast iron flue collar using
the hardware provided. There must be no narrowing of
the pipes that connect the central heating cooker to the
flue outlet. The joints must be completely airtight. The
number of elbows used must be kept to a minimum.
Horizontal runs must be kept to a minimum and have a
minimum slope of 4%. Never use the same flue outlet for
more than one appliance.
VITETC+M6
DADOM6
K
RONDELLA d. 6
Key
screw
nut
washer
Legenda
vite
dado
rondella

pg. 18
7.27.2
7.27.2
7.2 ESSENTIAL REQUIREMENTS FOR THE CHIMNEY CAPESSENTIAL REQUIREMENTS FOR THE CHIMNEY CAP
ESSENTIAL REQUIREMENTS FOR THE CHIMNEY CAPESSENTIAL REQUIREMENTS FOR THE CHIMNEY CAP
ESSENTIAL REQUIREMENTS FOR THE CHIMNEY CAP
Key
Flat roof
Roof
Distance (dist.)
Obstacle
Beyond the
chimney
Flow-back
zone
Minimum
A chimney cap is a device that is normally placed on top of a flue outlet for the purpose of facilitating dispersion of the combustion products; it
must satisfy the following requirements;
-have a useful exhaust section that is at least double the section of the flue outlet on which it is inserted;
-have a shape that prevents the entry of snow or rain into the flue outlet;
-be built in such a way that venting of the combustion products is guaranteed regardless of wind direction. The diagrams show how the chimney
should be constructed.
Legenda
Tetto piano
Tetto
Distanza (dist.)
Ostacolo
Oltre il
camino
Zona di
reflusso
Minimo

pg. 19
Before connecting the central heating cooker to the flue outlet it is advisable to check the flue outlet draft. This operation can be carried out
using a draft gauge: the vacuum must measure 1.5 - 2 mm water gauge.
We recommend having an expert technician control the flue outlet at least once a year.
Poor draft causes poor combustion which results in a reduced power.
It is important to be aware of the fact that in terms of correct functioning and safe usage the flue outlet is just as important as the central heating
cooker. The smoke pipes must be connected to the flue outlet in the same room in which the heater is installed or in an adjacent room and must
satisfy the following requirements:
be airtight and be capable of resisting normal mechanical stress, heat and the action of the combustion products and condensate over long
periods of time. The temperature of the gases, at any point in the channel, must be above dew point;
the joints must be sealed tight; if materials are used for this purpose they must be capable of resisting high temperatures;
be in full view, easily accessed for removal and installed in such a way as to be capable of resisting normal thermal expansion;
be installed in such a way that end of the tube with the smaller diameter faces the smoke vent and the end with the larger diameter faces the
flue outlet
have a horizontal run with a minimum upward slope of 3-5% (3-5 cm for each metre of tube ). The horizontal-sloped part must not be longer than
1/4 of the height of the flue outlet, and in any case must have a maximum length of 2.5m;
have no more than 3 changes of direction, including the flue outlet connector, and with internal corners that are a minimum of 90°. The changes
of direction must only be made with curved elements;
have (as described in the figure above) the axis of the female end perpendicular to the opposite wall of the flue outlet, without protruding into the
pipe;
Have, along its entire length, a section which is equal to or greater than that of the appliance’s exhaust tube fitting;
Have no shut off devices ( damper): if devices such as these are already installed they must be eliminated.
The previous chapter does not replace UNI 7129/92 and UNI 10683/98 to which it makes reference. The qualified installer
must in any case be fully aware of this standard and its amending versions.
YES NO
7.47.4
7.47.4
7.4 CONNECTIONCONNECTION
CONNECTIONCONNECTION
CONNECTION TT
TT
TOO
OO
O THE FLTHE FL
THE FLTHE FL
THE FLUE OUTLETUE OUTLET
UE OUTLETUE OUTLET
UE OUTLET
7.37.3
7.37.3
7.3 VENTILAVENTILA
VENTILAVENTILA
VENTILATION OFTION OF
TION OFTION OF
TION OF THE RTHE R
THE RTHE R
THE ROOMSOOMS
OOMSOOMS
OOMS
It is essential for the room in which the appliance is installed to be well-ventilated, also to guarantee secondary air for combustion in the central
heating cooker.
The natural air flow occurs directly through permanent apertures to the outside made in the walls of the room, or by means of single or multiple
ventilation ducting.
The ventilating air must come from outside and if possible, away from sources of pollution. Indirect ventilation is also allowed by taking in air from
rooms adjacent the one where the heater is installed taking into account all the warnings and limitations specified below.
•The apertures in the walls must comply with the following requirements:
- -have an unobstructed section of at least 6cm² for each Kw of installed thermal power, with a minimum limit of 100cm²;
- be made in such a way that the vent openings, both on the inside and outside of the wall, cannot be obstructed;
- be protected with grills or similar systems in order not to reduce the section described above;
- be situated at floor-level.
The air flow can also be obtained from an adjacent room as long as:
- the adjacent room is equipped with direct ventilation in compliance with the points described above;
- in the room to be ventilated the installed appliances are only connected to one flue outlet;
- the adjacent room is not used as a bedroom or a common area of the building;
- the adjacent room is not a room with a fire hazard, such as storage sheds, garages, combustible material store rooms, etc...;
- the adjacent room does not become a vacuum compared to the room to be ventilated due to an opposite draught effect;
- the air flow from the adjacent room to the room to be ventilated is unobstructed through the permanent apertures having an overall net section
of no less than that indicated above. These apertures can be obtained by enlarging the space between the door and the floor.

pg. 20
88
88
8TROUBLESHOOTINGTROUBLESHOOTING
TROUBLESHOOTINGTROUBLESHOOTING
TROUBLESHOOTING
8.18.1
8.18.1
8.1 PRPR
PRPR
PROBLEMS CAOBLEMS CA
OBLEMS CAOBLEMS CA
OBLEMS CAUSESUSES
USESUSES
USES AND REMEDIES FOR BOSKY BOILERSAND REMEDIES FOR BOSKY BOILERS
AND REMEDIES FOR BOSKY BOILERSAND REMEDIES FOR BOSKY BOILERS
AND REMEDIES FOR BOSKY BOILERS
Burner is clogged
Clean the burner by shifting the grate to the
winter position and riddle until the ash drops
through
Moisture content of wood is
too high or pieces too large
Use smaller pieces of firewood and more
seasoned firewood
Difficulty igniting the fire Insufficient air in the room Create an adequate opening for air inlet
(see PARA. 7.3)
Poor draft See causes -remedies "Poor draft" (below)
Firewood has not yet caught
alight
Open the fire rekindling ring (para. 5.1) and
wait for it to catch alight
The ash pan door and/or
inspection fire rekindling ring
is open.
Close the ash pan door and/or the flame
rekindling ring
The water in the boiler has a tendancy to boil The pumps are not working Inspect the pumps
Faulty anticondensate
thermostat Replace thermostat
Tendancy to generate condensation (presence of
humidity/water in the ash pan and under the heater) Poor draught See causes -remedies "Poor draft" (below)
Low boiler temperature Connect pumps to panel
The boiler does not heat sufficiently Firewood pieces are too
large Split the firewood into smaller pieces
Poor draft See causes -remedies "Poor draft" (below)
Insufficient air in the room Create an adequate opening for air inlet
(see PARA. 7.3)
Oxidised cook top Poor maintaince of the cook
top
Clean and maintain cook top as described
in para. 6.3
Impossible to operate at night
(the fuel burns too quickly).
Uncontrolled combustion.
Draft too strong Reduce the draft by installing a register in
the chimney.
Poor draft Raise the flue outlet, install an anti-
downdraft cap on the chimney top.
Difficulty in controlling the temperature. Draft too strong Reduce the draft by installing a register in
the chimney.
Poor draft
Inspect the flue draft: Presence of
constrictions int he chimney, too many
curves, poor insulation,section too small /
clean the flue outlet/ lift the cook top and
thoroughly clean the smoke passage and in
particular the additional heat exchanger.
Puffs of smoke issue from the top of the heater when
the door is slammed shut. Insufficient air in the room Create an adequate opening for air inlet
(see PARA. 7.3)
Variable draft Raise the flue outlet, install an anti-
downdraft cap on the chimney top.
Variable combustion rhythm.
Good combustion only occasionally, almost appears
to depend on the wind conditions.
Insufficient air in the room Create an adequate opening for air inlet
(see PARA. 7.3)
Smoke in the room.
Difficulty keeping the fire alight.
Difficulty reaching the temperature in the oven.
Low temperature of cook top.
Flame insensitive to variations in draft.
Puffs of smoke while operating.
Soot deposits in hood.
Impossible to operate during the night (fuel remains
unburnt).
Water does not reach the required temperature.