klover BELVEDERE 22 Quick start guide

ENGLISH
BELVEDERE 22
Pellet boiler
stove
INSTALLATION, USE AND
MAINTENANCE, USEFUL TIPS
Applies to:
BV22
BV22-V (with room fan)
BV22-P (combi boiler)
BV22-PV (combi boiler with room fan)
Main Revision 1.5
FPH_supplement: 001

SERVICE DECLARATION
Ref. Annex III EU Regulation no. 305/2011
DoP/KLOVER-015
1. Identification number
:
DVM
2. Model and/or lot no. and/or serial no. (Art.11-4)
:
DIVA MID –BELVEDERE 22
3. Intended use of the product according to the relevant
harmonised technical specification
:
Home heating appliance fed with wood
pellets which can also produce domestic hot
water
4. Name or trademark of the manufacturer (Art11-5)
:
KLOVER s.r.l.
I - 37047 San Bonifacio (VR) –Via A. Volta, 8
5. Name and address of the representative (Art.12-2)
:
-
6. Assessment and verification system of the performance
constancy (Annex 5)
:
System 3
7. Notified laboratory
:
NB 1880
ACTECO s.r.l.
I - 33084 Cordenons (PN) –Via Amman, 41
Number of test report (based on System 3)
:
2877-09NB, 3581-09NB, 0076-15FA
8. Declared performances
HARMONISED TECHNICAL SPECIFICATION
EN 14785
PERFORMANCE FEATURES
PERFORMANCE
Fire resistance
A1
Distance from combustible material
200 mm
Fuel spillage risk
Compliant
Emission of combustion products
- Nominal power
- Reduced power
CO at 13% of O20.016 %
CO at 13% of O20.017 %
Effective temperature
Compliant
Electrical safety
Compliant
Accessibility and cleaning
Compliant
Maximum operating pressure
2.5 bar
Mechanical strength
NPD (performance not determined)
Thermal performance
- Nominal power (reduced)
- Nominal power (reduced) yielded to the environment
- Nominal power (reduced) yielded to water
20 kW (6.9 kW)
2.9 kW (1.5 kW)
17.1 kW (5.4 kW)
Yield
- Nominal power
- Reduced power
ɳ 89.4%
ɳ 89.1 %
Flue gas temperature
- Nominal power
- Reduced power
T 186° C
T 109.4° C
9. The performance of the product referred to in points 1 and 2 is compliant with the declared performance in
point 8.
This declaration is released on the sole responsibility of the manufacturer referred to in point 4.
Signed in the name and on behalf of the manufacturer by:
San Bonifacio (VR), 23/10/2015
Mario Muraro
Chairman of the Board

1
CONTENTS
CONTENTS.......................................................................................................................................................................................................... 1
INTRODUCTION ................................................................................................................................................................................................. 4
IMPORTANT SAFETY INSTRUCTIONS .................................................................................................................................................................. 4
INSTALLATION REGULATIONS............................................................................................................................................................................ 5
CO ALARMS ..................................................................................................................................................................................................... 5
CONTROL OF SUBSTANCES HAZARDOUS TO HEALTH ....................................................................................................................................... 5
EXTRACT VENTILATION ..................................................................................................................................................................................... 5
HEARTH ............................................................................................................................................................................................................ 5
DISTANCE TO COMBUSTIBLES ........................................................................................................................................................................... 6
COMBUSTION AIR SUPPLY ................................................................................................................................................................................. 6
CONNECTION TO THE CENTRAL HEATING SYSTEM ............................................................................................................................................ 6
ELECTRICAL CONNECTIONS .............................................................................................................................................................................. 6
COMMISSIONING AND HANDOVER ..................................................................................................................................................................... 6
HEALTH AND SAFETY ........................................................................................................................................................................................ 6
THE MACHINE AND THE PELLETS................................................................................................................................................................ 7
COMPONENTS OF THE APPLIANCE .................................................................................................................................................................... 7
OVERALL DIMENSIONS ...................................................................................................................................................................................... 9
CONNECTIONS DATA SHEET ............................................................................................................................................................................ 10
TECHNICAL SPECIFICATIONS .......................................................................................................................................................................... 11
PELLET PROPERTIES....................................................................................................................................................................................... 12
REQUIREMENTS OF THE PLACE OF INSTALLATION.............................................................................................................................12
POSITIONING................................................................................................................................................................................................... 12
SPACES AROUND AND ABOVE THE APPLIANCE ................................................................................................................................................ 13
EXTERNAL AIR INTAKE .................................................................................................................................................................................... 13
THE FLUE PIPE AND CONNECTION TO THE SAME ............................................................................................................................................. 14
CHIMNEY ........................................................................................................................................................................................................ 16
ELECTRICAL CONNECTION.......................................................................................................................................................................... 17
CONTROL OF ANY COUPLED BOILER ............................................................................................................................................................... 17
CONTROL OF A POSSIBLE THREE-WAY MOTORISED VALVE FOR THE DHW SYSTEM (ON BV22-P AND BV22-PV MODELS ONLY) .................. 17
CONNECTION TO THE ROOM THERMOSTAT ..................................................................................................................................................... 18
PLUMBING CONNECTIONS........................................................................................................................................................................... 19
THE DISPLAY ...................................................................................................................................................................................................19
THE MENU.........................................................................................................................................................................................................22
INITIAL START-UP...........................................................................................................................................................................................26
FILLING THE SYSTEM FOR THE FIRST TIME ...................................................................................................................................................... 26
PELLET LOADING AND CONNECTION TO THE MAINS POWER SUPPLY ............................................................................................................... 26
IGNITION CYCLE .............................................................................................................................................................................................. 26
WORKING MODE ............................................................................................................................................................................................. 27
SWITCH-OFF CYCLE ........................................................................................................................................................................................ 27
CHANGING THE ROOM AND WATER TEMPERATURE ......................................................................................................................................... 27
CHANGING THE AIR FAN SPEED (ON THE BV22-V AND BV22-PV MODELS ONLY) .......................................................................................... 28
REMOTE CONTROL.......................................................................................................................................................................................... 29
PROBLEMS, ALARMS, USEFUL ADVICES.................................................................................................................................................30
USEFUL INFO… .............................................................................................................................................................................................. 30
WHAT HAPPENS IF… ...................................................................................................................................................................................... 30
ALARM SIGNALS .............................................................................................................................................................................................. 31
CLEANING AND MAINTENANCE.................................................................................................................................................................. 32
PRECAUTIONS BEFORE CLEANING .................................................................................................................................................................. 32
ROUTINE CLEANING ........................................................................................................................................................................................ 32
NON-ROUTINE CLEANING ................................................................................................................................................................................ 33
CLEANING THE CERAMIC GLASS ...................................................................................................................................................................... 36

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
CLEANING THE FLUE PIPE ............................................................................................................................................................................... 36
MAINTENANCE ................................................................................................................................................................................................ 36
PCB PARAMETERS......................................................................................................................................................................................... 37
WIRING DIAGRAM ........................................................................................................................................................................................... 39
WARRANTY CONDITIONS .............................................................................................................................................................................40

BELVEDERE 22 PELLET BOILER STOVE
3
EN - Rev. 1.5
Dear Customer,
First of all we would like to thank you for choosing a “KLOVER” product and we hope you will be satisfied with this
product.
Please read the warranty certificate carefully. This is found on the last page of this User Guide. Please contact the
authorised Technical Assistance Centre (TAC) for the initial start-up of your stove and to validate the warranty.
We would like to thank you again for trusting KLOVER products, and we would also like to inform you that these models
are the result of forty years of experience in the manufacture of solid fuel products using water as a heat transfer
medium.
Every single detail of the product is manufactured by qualified staff, using the most advanced equipment.
The manual contains a detailed description of the appliance and its operation, instructions for proper installation, basic
maintenance and control points, which must be periodically performed; furthermore it contains practical advice which
helps to obtain maximum performance from the appliance with minimum fuel consumption.
Stay warm with KLOVER!
Technical Support
Klover pellet appliance is are imported and distributed by Firepower Heating, Flightway, Dunkeswell, Honiton, Devon,
EX14 4RD.
UK technical and product support is provided by Firepower Heating who can be reached on 0844 3320156.
Copyright
All rights reserved. The reproduction of any part of this manual, in any form, without the explicit written permission of
KLOVER Srl is forbidden. The content of this manual may be modified without notice. Although the documentation
contained in this manual has been carefully compiled and checked, KLOVER srl cannot be held liable for any damages
arising from the use of the same.
Copyright © 2015 KLOVER srl

BELVEDERE 22 PELLET BOILER STOVE
4
EN - Rev. 1.5
INTRODUCTION
Important safety instructions
Please read these instructions before installing and using the product.
- The installation and initial start-up of the appliance must be performed by skilled personnel trained in the relevant
safety standards. They will be responsible for the definitive installation of the appliance and its proper operation.
KLOVER srl shall not be held liable if these precautions are not observed.
- During installation of the appliance, all local regulations - including those referring to national and European
Standards - must be observed.
- Connect the flue gas outlet to a flue with the specifications described in the “Flue and its connection” section of this
User guide.
- The appliance is not suitable for installation on a shared flue system.
- If the flue should catch fire, use appropriate fire extinguishing equipment or call the fire brigade.
- Connect the product to an earthed power socket. Avoid using sockets controlled by switches or automatic timers.
- Do not use the power supply cable if damaged or worn.
- If a multiple socket is used, make sure that the total current draw of the connected devices does not exceed the rated
current draw for the socket. Also make sure that the total current draw of all the devices connected to the socket
does not exceed the maximum permitted level.
- Do not use flammable substances to clean the appliance or its parts.
- Do not leave flammable containers and substances in the place where the appliance is installed.
- The appliance works exclusively with wood pellets and only with the hearth door shut.
- NEVER open the door of the appliance during normal operation.
- The use of poor quality pellets or any other material can damage the appliance operation, voiding the warranty and
exempting the manufacturer from all liability.
- Do not use the appliance as an incinerator or for any use other than that for which it was designed.
- Do not use fuels other than those recommended.
- Do not use liquid fuels.
- The appliance, and its outer surfaces in particular, become very hot to the touch during operation; handle with
caution in order to avoid burns.
- Only use original spare parts recommended by the manufacturer.
- Do not make any unauthorised modifications to the appliance.
- Do not touch the hot components of the product (ceramic glass, flue pipe) during normal operation.
- Never touch the appliance if you are barefoot and/or if you have wet or damp parts of the body.
- Use the appropriate button to switch off the electrical panel. Do not disconnect the power supply cable while the
appliance is operating.
- During the ignition phase and normal operation of the appliance, maintain the necessary safety distance and do not
remain standing in front of it.
- Keep children away from the appliance when it is running since they could get burned by touching its hot
components.
- Do not leave the packaging elements within reach of children or unassisted disabled persons.
- Children and inexperienced people must not be allowed to use the appliance.
- Do not use the appliance in ways other than those indicated in this user guide.
- The appliance is designed for indoor use only.
- This user guide constitutes an integral part of the appliance. If the product is sold to another user, this manual must
be passed on to the new owner.
- The Klover pellet products are not suitable for use in smokeless zones.
KLOVER S.R.L. DECLINES ALL LIABILITY IN CASE OF ACCIDENTS DUE TO FAILURE TO COMPLY WITH THE
SPECIFICATIONS OF THIS MANUAL.
KLOVER S.R.L. DECLINES ALL LIABILITY DUE TO INCORRECT USE OF THE PRODUCT BY THE USER,
UNAUTHORISED MODIFICATION AND/OR REPAIRS, AND USE OF NON-ORIGINAL SPARE PARTS OR SPARE
PARTS NOT SPECIFICALLY DESIGNED FOR USE ON THIS PRODUCT MODEL.
KLOVER S.R.L. SHALL NOT BE HELD LIABLE FOR THE STOVE'S INSTALLATION. THE INSTALLER IS THE
SOLE PARTY RESPONSIBLE FOR THIS OPERATION AND IS ALSO ENTRUSTED WITH CHECKING THE FLUE,

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
EXTERNAL AIR VENT AND THE CORRECTNESS OF THE PROPOSED INSTALLATION SOLUTIONS. ALL THE
SAFETY REGULATIONS SET OUT IN THE SPECIFIC LAWS IN FORCE IN THE COUNTRY OF THE STOVE'S
INSTALLATION MUST BE OBSERVED.
NON-ROUTINE MAINTENANCE MUST ONLY BE PERFORMED BY AUTHORISED AND QUALIFIED STAFF.
To ensure the validity of the warranty, the user must comply with the instructions contained in this guide and, in
particular, must:
- Use the appliance within its operating limits;
- Regularly perform all maintenance activities;
- Authorise expert and competent people to use the appliance.
Failure to comply with the instructions contained in this guide shall automatically void the warranty.
Installation Regulations
These operating and instructions cover the basic principles to ensure the correct installation of the pellet appliance,
although particulars may need modification to reflect local site conditions. In all cases the installation must comply with
current Building Regulations, Local Authority By-laws and other regulations that affect the installation of the appliance.
The Building Regulations requirements can be met by adopting the relevant recommendations given in British Standards
BS 8303, BS 6461 and BS 7566 as an alternative means to achieve an equivalent level of performance to that obtained
by following the guidance given in Approved Document J.
Please note that it is a legal requirement under England and Wales Building Regulations that the installation of the stove
is carried out under Local Authority Building Control approval or is installed by a Competent Person registered with a
Government approved Competent Persons Scheme. HETAS Ltd operate such a Scheme and a listing of their
Registered Competent Persons can be found on their website at www.hetas.co.uk.
CO Alarms
Building Regulations require that when a fixed solid fuel or wood/biomass appliance is installed in a dwelling a carbon
monoxide alarm must be fitted in the same room as the appliance, we would also recommend that a Carbon Monoxide
alarm is fitted in any room through which the flue or chimney passes. Further guidance on the installation of the carbon
monoxide alarm is available in BS EN 50292:2002 and from the alarm manufacturer’s instructions. Provision of an alarm
must not be considered a substitute for either installing the appliance correctly or ensuring regular servicing and
maintenance of the appliance and chimney system.
Control of Substances Hazardous to Health
Some types of fire cement are caustic and should not be allowed to come into contact with the skin. In case of contact
wash immediately with plenty of water or follow the COSHH assessment issued by the manufacturer of the product.
This stove contains no asbestos. If there is a possibility of disturbing any asbestos in the course of installation then
please seek specialist guidance and use appropriate protective equipment.
When installing or servicing this boiler care should be taken to avoid the possibility of personal injury and any suitable
personal protective equipment must be worn.
Extract ventilation
There must not be an extractor fan fitted in the same room as the boiler as this can cause the boiler to emit fumes into
the room.
Hearth
The hearth should be able to accommodate the weight of the stove, which is given in the instruction manual.
The boiler should always be installed on a non-combustible hearth of a size and construction that is in accordance with
the provisions of the current Building Regulations Approved Document J.

BELVEDERE 22 PELLET BOILER STOVE
6
EN - Rev. 1.5
Distance to combustibles
The clearance distances to combustible material beneath, surrounding or upon the hearth and walls adjacent to the
hearth should comply with the guidance on the separation of combustible material given in Building Regulations
Approved Document J and also in these stove instructions.
Combustion air supply
For the stove to perform efficiently and safely there must be an adequate air supply to the room in which the stove is
installed to provide combustion air. The provision of air supply to the stove must be in accordance with current Building
Regulations Approved Document J.
Connection to the central heating system
Ensure the heating system is correctly designed for the boiler. Full guidance is given in the main installation manual.
Depending on the intended design of the heating installation and also on the output of the boiler, the central heating
system must be in accordance with either: BS EN 14336:2004: Heating Systems in Buildings. Installation and
commissioning of water based heating systems. BS EN 12828: 2003; Heating Systems in Buildings. Design of water
based heating systems. BS EN 12831: 2003; Heating Systems in Buildings. Method for calculation of the design heat
load.
Particular attention must be paid to the installation and correct functioning of any Thermal Safety Device where
necessary.
Electrical connections
The installation of any electrical services during the installation of this boiler and the associated heating system must be
carried out by a registered competent electrician and in accordance with the requirements of the latest issue of BS 7671.
Commissioning and handover
Before commissioning this boiler be sure to read and follow the operation manuals to ensure that everything is carried
out in accordance with the correct procedures.
Ensure any loose parts are fitted in accordance with the instructions, ensure any packing pieces are removed from the
stove prior to installation.
Once the stove is under fire check all seals for soundness and that the boiler and water system are operating correctly.
Ensure that the flue is functioning correctly and that all products of combustion are vented safely to atmosphere via the
chimney terminal.
On completion of the installation and commissioning ensure that the instruction manuals for the boiler are left with the
customer. Ensure to advise the customer on the correct use of the appliance with the fuel likely to be used on the boiler
and warn them to use only the recommended fuel for the boiler. The user should be given a demonstration of the
required routine maintenance and safety checks. Remind the user of the importance of regular chimney sweeping and
servicing by qualified persons to ensure continued safe operation of the boiler. Leave the boiler operational and inform
the user that this is the case.
Health and Safety
Care must be taken when installing a Klover pellet appliance to ensure that the requirements of the Health and Safety at
Work Act are met.
Adequate Handling facilities must be available for loading, unloading and site handling the appliance bearing in mind the
weight of the appliance.

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
THE MACHINE AND THE PELLETS
Components of the appliance
The table below shows the standard features of the appliance:
Expansion tank
6 l
Safety valve
2.5 bar
Pressure gauge
0 –4 bar
Check valve
Yes
Manual air vent valve
Yes
Heating system pump
Yes. Mod.25/70
DHW heat exchanger
On BV22-P and BV22-PV models only
Electrical setting for the connection of the domestic water flow switch
Yes
Air fans
On BV22-V and BV22-PV models only
Infrared remote control
Yes
The appliance is delivered with the following equipment:
- No. 1 user, installation and maintenance guide;
- No. 1 power supply cable;
- No. 1 metal key for “manual air vent valve”;
- No. 1 rubber pipe for “manual air vent valve”;
- No. 1 swab D.40-170 mm L.420 mm;
- No. 1 infrared remote control.
Manometer (indicates the pressure
of the heating system).
Manual air vent valve
(with key and rubber pipe).
Left side flue gas pass
scraper.
Right side flue gas pass
scraper.
TOP TECHNICAL COMPARTMENT

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Anti-interference filter
Main switch, connection for power supply cable
with 2 built-in fuses (4A 250V).
Boiler body and system
drain cock.
Expansion tank
6 l with pre-load 1 bar.
REAR TECHNICAL COMPARTMENT
Domestic hot water outlet pipe connection
(on BV22-P and BV22-PV models only).
Domestic cold water inlet pipe
connection (on BV22-P and
BV22-PV models only).
Safety valve
calibrated 2.5 bar.
Heating system return.
Heating system flow
with check valve.
Safety thermostat with manual reset.
Flue gas outlet.
Combustion air inlet.
Terminal for room thermostat
connection.

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Overall dimensions

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Connections data sheet
Description of connections
M = Heating system flow
3/4" F
R = Heating system return
3/4" M
F = Domestic cold water inlet (on BV22-P and BV22-PV models only)
1/2" M
C = Domestic hot water outlet (on BV22-P and BV22-PV models only)
1/2" M
X = Safety valve drain
1/2" F
A = Combustion air inlet
43 mm
S = Flue gas outlet
100 mm M
E =Electricity connection
REAR VIEW

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Technical Specifications
Nominal heat input
kW (Kcal/h)
22.4 (19,300)
Reduced thermal capacity
kW (Kcal/h)
7.8 (6,700)
Nominal thermal output
kW (Kcal/h)
20 (17,200)
Reduced thermal power
kW (Kcal/h)
6.9 (5,900)
Nominal power released to heating water
kW (Kcal/h)
17.1 (14,700)
Reduced power released to heating water
kW (Kcal/h)
5.4 (4,600)
Nominal power delivered to room due to radiation
kW (Kcal/h)
2.9 (2,500)
Reduced power delivered to room due to radiation
kW (Kcal/h)
1.5 (1,300)
Efficiency at thermal nominal power
%
89.4
Efficiency at reduced thermal power
%
89.1
CO at 13% oxygen at nominal thermal power
%
0.016
CO at 13% oxygen at reduced thermal power
%
0.017
Power consumption min - max
Watt
25 –300*
Nominal voltage
V
220
Nominal frequency
Hz
50
Expansion vessel litres/preloading bar
6 / 1
Maximum operating/recommended pressure
bar
2.5 / 1.5
Flue pipe diameter
mm
100
Air intake pipe diameter
mm
43
Minimum chimney draught at nominal thermal power
Pa
12.4
Minimum chimney draught at reduced power
Pa
11.4
Combustion gas mass at nominal thermal power
g/s
11.2
Combustion gas mass at reduced power
g/s
8.0
Pellet tank capacity
Kg
42
Average exhaust flue gas temperature at nominal thermal power
°C
186
Average exhaust flue gas temperature at reduced power
°C
109.4
Boiler body capacity
litres
19
Width
mm
600
Height
mm
1180
Depth
mm
620
Minimum safety distance from flammable materials
mm
200
Weight
Kg
220
* Power consumption only during the ignition cycle.
The appliance's heat output may vary depending on the type of pellets used.

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Pellet properties
The appliance has been tested with all types of pellets available on the market. The pellets must have the following
properties:
- Diameter 6 mm.
- Maximum length 35 mm.
- Maximum humidity content 8 – 9 %.
- 100% wood. Totally additive-free.
- Maximum ash residue 1.1 %.
To obtain good performance from the appliance, we recommend using good quality pellets. Pellets should be poured
into the tank using a shovel, and not directly from the bag.
Good quality pellets should have the following properties:
- Constant diameter cylinders with a smooth, shiny surface;
- There should not be a lot of sawdust inside the packaging;
- After grabbing a bunch of pellets and placing them into a container filled with water, good-quality pellets will sink and
poor-quality ones will tend to float;
- The quality certification data, in particular conformity to international standards such as EN14961-2, DIN 51731 and
O-NORM M7135, should be indicated on the packaging;
- The packages should be intact since pellets tend to absorb humidity. Humidity not only reduces the calorific value
and increases the amount of flue gases expelled, but also causes swelling of the product which may create problems
with the appliance.
The production of pellets must be compliant with some international standards (such as EN14961-2, DIN 51731 and O-
NORM M7135) which establish minimum values for quality checks on pellets. To facilitate the right choice of the
combustible material you can find below one of the most common certification marks identifying the quality of the pellets:
The use of poor quality pellets or any other material can damage the appliance operation, voiding the warranty
and exempting the manufacturer from all liability.
In order to guarantee trouble-free combustion, the pellets must be stored in a dry place.
REQUIREMENTS OF THE PLACE OF INSTALLATION
Positioning
The initial phase for best installation of the appliance is to determine its optimum location; the following elements need to
be considered:
- The possibility of creating an external air vent;
- The possibility of creating a straight flue, preferably coaxial to the outlet of the appliance;
- Proximity to the main water drain and/or the boiler (if one already exists);
- Proximity or ease of connection to the water system;
- Ease of access for cleaning the appliance, the flue gas exhaust pipes and the flue.
Indication of the standard,
base reference for the quality
classes ENplus
Indication of the quality
class of the certified pellet
(preferable A1)
IT xxx
Code of the certified company
consisting of two elements:
-Symbol of the country of
production (example “IT”)
- Progressive number assigned at
the acquisition of the
certification (example "xxx")

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
REAR WALL
SIDE WALL
SIDE WALL
50 cm 50 cm
15 cm
Any shelves or false ceilings mounted above the appliance must be at least 110 cm away from the top part of it.
Furniture and movable objects must be positioned at least 15 cm from the side surfaces of the appliance; these objects
must be moved when performing maintenance on the appliance.
Protect all structures that can catch fire against the radiated heat of the fire.
Any extra intervention by the Authorised technical assistance centre, where it is necessary to disconnect the
device from the system, will not be recognised under warranty as described in chapter “Warranty Conditions”.
External air intake
During operation, the appliance takes in air from the environment in which it is installed; It is therefore essential that this
air is replaced through an external air vent. The absence of the air vent may affect the flue draught and therefore the
combustion and the safety of the appliance.
Therefore it is mandatory to install an external air vent with a minimum completely free passage of at least 80 cm2
(round hole with minimum diameter of 15 cm protected with a special fixed large mesh grid).
If the wall behind the appliance is on the outside, we recommend you make the hole near it at about 20 cm above the
ground (see example in Fig. A).
If it is not possible to put an air vent in the wall behind the appliance, make a hole in a perimeter wall in the room where it
is installed. If it not possible to put the external air vent in the same room as where the appliance is installed, this hole
can be made in an adjoining room as long as this room communicates permanently, by means of a transit hole (15 cm
minimum diameter).
The hole must be protected externally with a fixed grille. The protective grille must be checked periodically to ensure that
it is not obstructed, thereby impeding the passage of air. Therefore keep the air vents clear of obstructions.
The unitmustbeinstalledon afloor withasuitable load capacity.Ifthe existingbuildingdoesnot fulfilthisrequirement
appropriatemeasures(e.g.loaddistributionplate)mustbetaken.
Theminimum safetydistance fromflammable materials mustbeatleast200 mmfromthesidesandbackofthe
appliance.
Relocating the appliance should not be done by forcing on the handle, glass or ceramics.
The installationmustguarantee easy access forcleaningthe appliance, the fluegas exhaustpipesand the flue, andany
subsequentmaintenanceoperationbytheAuthorisedtechnicalassistancecentre.
Once you have found the best location for the appliance, position it following the instructions given below.
Spaces around and above the appliance
Thefigurebelowshowstheminimumdistancesfromwallsorothernot-easily-removablefurniture,thatneedtobetaken
intoconsiderationwhenpositioningtheappliance.

14
Fig. A
20
Chimney and Flue pipe
The chimney is essential to the efficient operation of a Klover appliance. The chimney should be designed and
constructed according to these instructions, and relevant regulations including Building Regulations Approved Document
J.
Shape and size of chimney: A round chimney of 125mm diameter is recommended. 125mm is also the minimum
diameter which should be used. If the appliance is DEFRA Exempt then it should be connected to a 125mm chimney as
standard (assuming that the outlet is not larger than 125mm). If it is not DEFRA Exempt then a calculation according to
BS EN 13384-1:2002 must be completed if it is to be connected to a 125mm diameter chimney.
The maximum recommended round chimney diameter is 150mm.
Square or rectangular cross-sections must have rounded corners with radius not less than to 20 mm Rectangular cross-
sections must have a maximum ratio of 1.5 between the sides.
The chimney must have a constant, and unobstructed, internal cross section
Under no circumstances should the chimney be of a smaller diameter than the appliance outlet.
Connecting flue pipe: Short runs of single skin flue pipe to connect to the chimney may be run in a (minimum) diameter of
100mm (as long as this is not smaller than the appliance outlet).
Existing chimneys: Existing masonry chimneys should be lined with flexible stainless steel liner and the liner should be
insulated. All connections must be appropriately sealed.
Existing chimneys must be inspected, be clear of obstruction and have been swept clean immediately before installation
of the lining system.
No shared chimneys: Each appliance must connect to its own flue. No other appliance must connect to the same flue or
chimney. No other pipes or conduits must pass through the chimney or flue.
Sealed joins and connections: The appliance works with the combustion chamber in negative pressure and the flue pipe
under positive pressure; it is essential that all joints and flue and chimney connections are sealed. Single skin and twin
wall flue pipe should incorporate silicone seals at each joint. Other connections should be sealed with a suitable sealant
(for example high temperature silicone). All seals must be able to withstand 250ºC or more.
Suitable materials: Flue and chimney products used, including fixings and components, must be made of suitable, non-
combustible materials conforming to the applicable regulations.
Aluminium and fibre cement pipes are forbidden.
Donotconnecttheexternalairventdirectlytotheappliancethroughpiping.Ifthereareotherheatingorextraction
devicesinsidetheroom,theairventsmustguaranteeasufficientamountofairforproperly operating all thedevices.
Onlysealedappliancesorappliancesthatdonotcausealowerpressurecomparedwiththeexternalenvironmentcan
pre-existorbeinstalled in theplacewheretheapplianceisinstalled.
Extractor fans can cause malfunctions to the appliance if used in the same room.
BELVEDERE 22 PELLET BOILER STOVE EN - Rev. 1.5

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Orientation and initial vertical rise: The flue system should run as vertically as possible as any deviations off the
vertical can adversely affect the draw. 45º is the maximum off-vertical angle than may be used. Non-vertical sections
should make up no more than ¼ of the effective height of the flue or chimney (measured from the appliance outlet to
the top of the chimney), and must not be longer than 2,000 mm.
There should be no more than 4 bends in the system, with a tee counting as 2 bends.
Securely fix and support the system to avoid vibration and movement.
90º bends should not be used. When using the rear outlet on the appliance a 90º tee should be used with sweeping
access and debris collection space.
When using the rear outlet any horizontal run should not exceed 150mm, including the arm of the tee.
An initial vertical run of 600mm from the appliance is recommended before any change in direction.
Cleaning Access: The system must provide access so that the entire system can be swept and cleaned.
Flue pipes must not pass through rooms in which the installation of combustion devices is prohibited.
IT IS STRICTLY FORBIDDEN TO INSTALL FLUE DAMPERS/BUTTERFLY VALVES.
Heat shielding: If combustible materials are present then minimum separation distances will need to be adhered or
heat shielding will be required. Please refer to Building Regulations Approved Document J, and also these installation
instructions.

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
Height and draught: In order for the appliance to perform satisfactorily the chimney height must be sufficient to
ensure a draught of 12 Pa so as to clear the products of combustion and prevent smoke problems into the room.
A chimney height of not less than 4.5 m measured vertically from the outlet of the stove to the top of the chimney
should be satisfactory. Alternatively the calculation procedure given in BS EN 13384-1:2002 may be used as the
basis for deciding whether a particular chimney design will provide sufficient draught.
The outlet from the chimney should be above the roof of the building in accordance with the provisions of Building
Regulations Approved Document J diagram 17 or 18. Please see the diagram below.
Termination/Cowl: The cowl terminates the chimney and it is recommended that an effective anti-downdraft cowl
should always be used. It must have a usable outlet cross-section no less than double that of the flue onto which it is
inserted. In must prevent rainwater or snow entry. It must be ensure the discharge of combustion by-products even in
the event of winds from every direction and inclination.

BELVEDERE 22 PELLET BOILER STOVE
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EN - Rev. 1.5
ELECTRICAL CONNECTION
The electric connection must only be performed by qualified personnel only, and all work must be in accordance with
Building Regulations Part P and any other appropriate standards.
Check that the power supply voltage and frequency correspond to 220V –50 Hz.
Product safety is only obtained when it is correctly connected to a suitable earthing system.
In the electric connection to the mains power supply, include a 6 A – Id 30 mA differential trip-switch with suitable
breaking load. The electric connections, including the earth connection, must be made after shutting off the electrical
system.
When completing the system, bear in mind that the cables must be laid in an unmovable manner and far from parts
subject to high temperatures. During the final wiring of the circuit, only use components with a suitable electrical
protection rating. Do not pass electric cables in the immediate vicinity of the flue gas pipe, unless they are insulated with
suitable materials.
KLOVER srl declines all responsibility for injury to persons and animals or damage to objects due to failure to
connect the appliance to earth or to comply with IEC specifications.
Control of any coupled boiler
If the pellet appliance is to be coupled with a previously installed boiler in the system (e.g. wall-hung gas boiler), you
must ensure that the standard boiler stops when the pellet appliance takes over the heating of the system. The electrical
setting, which is accessible from the rear technical compartment, intervenes on the standard boiler when the heating
circulating pump of the pellet appliance starts up so as to avoid having two boilers operating simultaneously on the same
system. The coupled boiler is however always available for the production of domestic hot water.
The two wires prepared on the back of the appliance (blue and brown wires) will have an output voltage of 220 V
when the pellet appliance pump is working, and no voltage when the pump stops.
It is therefore necessary to connect the 2 wires to a relay that will control the Room Thermostat (R.T.) input of the
coupled boiler (see the following example).
Control of a possible three-way motorised valve for the DHW system (on BV22-P and BV22-PV models
only)
The pellet appliance is equipped as standard with a control for a possible 3-way motorised valve to be installed on the
domestic water circuit (for prepared models only). In the rear technical compartment of the appliance there are four wires
with fastons protected by a red seal, which can be used for controlling the valve (see also “wiring diagram”). The four
wires have different colours, and precisely:
- Blue wire = 3-WAY VALVE COMMON
- Black wire = PELLET APPLIANCE SANITARY SIDE
- Brown wire = GAS BOILER SANITARY SIDE
- Yellow/green wire = GND
Below there is an example of a connection using a 3-way valve with spring return. Remember that the hydraulic
connection must be made in such a way that when the valve is at rest, the water passes from the gas boiler. Only when