Nobis H17 V LIGHT Service manual

EN - Installation, use and
maintenance manual
H17 V LIGHT

Dear Customer. Thank you for choosing a product from our range.
You are invited to read this manual carefully before using the product, so as to take full advantage of
all its features in complete safety.
This manual contains information necessary for correct installation, start-up, use, cleaning and maintenance
of the product.
Please keep the manual in a suitable place after consulting it carefully.
Improper installation, incorrect maintenance and/or misuse of the product relieve the manufacturer
of any liability towards people or property.
All rights reserved. No part of this instruction manual may be reproduced or transmitted by any elec-
tronic or mechanical means, including photocopying, recording or any other storage system, for no
purposes other than the purchaser’s personal use only, without express permission of the Manufacturer.

Use and Maintenance Manual model “H17 V LIGHT”
3
ENGLISH
MANUAL INDEX
1 Introduction 4
1.1 Symbols 4
1.2 Intended use 4
1.3 Improper use 4
1.4 Importance of the manual 4
1.5 General safety warnings 4
1.6 Legal warranty 5
1.7 Exclusions from the warranty 5
1.8 Spare parts 6
1.9 Identication plate 6
1.10 Disposal of the product 6
1.11 Hermetic product 6
2 Characteristics of the pellet 6
3 Installation 7
3.1 Air intake 7
3.2 Smoke channel and ttings 7
3.3 Chimney ue 8
3.4 Chimney stack 8
3.5 Installation of the hermetic product 8
3.6 Examples of proper installation 9
3.7 Documents to be issued 10
3.8 Unpacking the product 10
3.9 Covering assembly 11
3.10 Hydraulic connection 12
3.11 Electrical connection 13
4 Examples of hydraulic diagrams 14
5 Maintenance 18
5.1 Maintenance of the smoke system 18
5.2 Product maintenance 18
6 Technical data of the product 18
6.1 Product data sheet 18
6.2 Technical features 18
6.3 Dimensions 19
6.4 Safety distances 19
7 Product conguration 19
7.1 Conguration of the remote control 19
7.2 Conguration of ext. thermostat 20
7.3 Pellet loading 20
8 Description of remote control commands 21
8.1 Description of receiver 21
8.2 Description of remote control keys 21
8.3 Description of remote control display 22
8.4 Flat battery signalling 22
8.5 Concise icons diagram 23
9 Menu browsing 23
10 First start-up instructions 24
10.1 Hour-date settings 24
10.2 Probe adjustments 24
10.3 Room temperature settings 24
10.4 Fireplace power settings 24
10.5 Switching ON/OFF the product 25
11 Operation 25
11.1 Saving mode 25
11.2 Comfort Clima function 25
11.3 H2O StandBy 27
11.4 Ventilation management 27
12 Description of the menu functions 27
12.1 Thermostat with timer function 27
12.2 Auger loading function 28
12.3 Pellet/Air-Intake ratio 28
12.4 Stove status 29
12.5 Enabling the external thermostat 29
12.6 Season 30
12.7 Language 30
12.8 Contrast 31
12.9 FW version 31
12.10 Anticondensation 31
12.11 SLEEP function 31
13 Advanced hydraulic diagrams 32
13.1 Diagram 01 (DHW tank + heating) 32
13.2 Diagram 02 (TECH. WTR. tank) 33
13.3 Diagram 03 (TECH. WTR. + DHW tank) 33
14 Phases overview 34
15 Functions overview 34
16 Alerts overview 34
17 Anomalies overview 35
18 Description of alarms 35
19 Cleaning the appliance 38
19.1 Cleaning the replace 38
19.2 Cleaning the glass door 39
19.3 Cleaning the ash pan 39
20 Wiring diagram 41

Use and Maintenance Manual model “H17 V LIGHT”
4
ENGLISH
1 INTRODUCTION
Nobis products are designed and manufactured
in compliance with the reference standards for
manufacturing products (EN13240 wood stoves,
EN14785 pellet appliances, EN13229 replaces/
wood-burning inserts, EN12815 wood-burning cookers),
with high quality materials. The products also comply
with the essential requirements of Directive 2006/95/EC
(Low Voltage) and Directive 2004/108/EC
(Electromagnetic Compatibility).
Any printing, translation and reproduction,
even partial, of this manual are intended
bound to the manufacturer’s authorization, and the
content of operating logics and explanatory gures
is considered not to be disclosed.
Always consult authorized technicians in case of
any doubts about the functioning of the product.
The manufacturer reserves the right to make changes to
specications and technical and/or working features of
the product at any time and without prior warning.
1.1 SYMBOLS
This manual contains symbols highlighting
the importance of particular descriptions
or concepts;
INFORMATION: complying with the product’s
specications guarantees its correct operation.
WARNING: this symbol is used to identify
information of particular importance.
DANGER: the presence of this symbol indicates
that utmost attention is required to guarantee
both user and product safety.
1.2 INTENDED USE
This is a manual for a replace for domestic heating,
fed by automatic loading and using wood pellets only.
This product has been designed and manufactured
to work in safety if the following conditions occur:
• installation by specialized staff in compliance with the
specic reference standards;
• use within the limits declared on the product
data sheet and in this manual;
• compliance with technical procedures as described
in the manual;
• carrying out routine maintenance according to times
and methods indicated in this manual;
• prompt execution of extraordinary maintenance
if necessary (e.g. in case of malfunctioning);
• the safety devices are working properly and
maintained on a regular basis (do not remove or
bypass this devices).
1.3 IMPROPER USE
The product is intended to be used for the purpos-
es and within the limits for which it was expressly de-
signed; for any other use, the manufacturer cannot
be held in any way liable for damage caused to
people, animals or property.
Improper use is meant as:
• using the product as an incinerator;
• use of the product with fuel other thanØ 6mm wood
pellets;
• Fuelling the product with liquid fuel;
• using the product with the re door open and/or
broken glass and/or ash pan removed and/or
pellet tank open.
Any other use of the appliance other than that for
which it has been intended must be authorized in ad-
vance in writing by the manufacturer.
Furthermore, the manufacturer cannot be held in
any way liable for any mistakes in the installation,
adjustment or maintenance of the product.
1.4 IMPORTANCE OF THE MANUAL
This manual has the purpose of providing essential
rules for proper installation, use and maintenance of
the product.
STORAGE: please, store the manual in a place that is
easy and quick to nd;
DETERIORATION OR LOSS: please, consult our ofcial
website to download the manual;
PRODUCT TRANSFER: In the event of sale of the product
between private individuals, the owner is obliged to
deliver the product with a copy of this manual included.
1.5 GENERAL SAFETY WARNINGS
Non-compliance with the provisions of this manual can
cause damage to people, animals and property.
• Installation, testing of the system, functionality
testing and initial calibration of the product must be
carried out by qualied and authorized staff only.
• The product must be connected to a single chimney
ue guaranteeing the draught declared by the
manufacturer and complying with the installation
standards outlined in the place of assembly of the
product.
• The premises where the product is installed must be
adequately ventilated (air intake).
• Do not touch the hot surfaces without adequate
protective equipment, so as to avoid burns.
• When in operation, the external surfaces of the product
reach high temperatures.
• It is forbidden to make any changes to the product
unless expressly communicated in writing by the
manufacturer.
• In the event of re in the chimney ue, please
contact the re brigade immediately.

Use and Maintenance Manual model “H17 V LIGHT”
5
ENGLISH ENGLISH
1.6 LEGAL WARRANTY
To benet from legal warranty, the user must
strictly comply with the provisions indicated in this
manual. In particular, the user will have to:
• always work within the use limitations of the product;
• always carry out routine maintenance;
• authorize the use of the machine only to people
with proven capacity, attitudes and who are ade-
quately trained for the purpose;
• use original spare parts specically intended for
the appliance model in use.
It is also necessary to provide the following:
• scal receipt reporting date of purchase;
• a certicate of compliance for the installation of the
product, issued by authorized staff.
Non-compliance with the provisions contained in this
manual will imply immediate forfeiture of the
warranty for both the product and any spare parts
assembled thereafter.
1.7 EXCLUSIONS FROM WARRANTY
The warranty excludes all malfunctions and/or
damage to the appliance resulting from the
following causes:
• damage caused by transport and/or handling;
• all parts resulting as being faulty due to
negligence or careless use, wrong
maintenance, or installation non-conforming
to the manufacturer instructions
(please, refer to the installation and use manual
supplied with the appliance);
• further damage caused by wrong intervention
by the user in the attempt to solve a preexisting fault;
• aggravated damage caused by further use
of the appliance by the user once
a fault has occurred;
• in the presence of a boiler, any corrosion,
scale or breakages caused by stray
current, condensate, abrasion or acidity in the
water, scale removal treatments carried out
improperly, water shortage, sludge or limescale deposits;
• inefciency of the chimneys, chimney ues or parts of the
system on which the appliance depends;
• damage caused by tampering with the appliance,
atmospheric agents, natural disasters, vandalism,
electrical discharge, re, faulty electrical and/or
plumbing system.
The following are also excluded from the warranty:
• parts subject to normal wear such as gaskets,
glass, coverings and cast iron grates, painted,
chrome-plated or gold-plated parts, handles and
electrical cables, lights, switch resistor, indicator lights,
knobs, and all those parts that can be removed from
the replace (e.g. refractory, brazier);
• color variations of painted and ceramic parts,
as well as ceramic cracks (being natural features
of the material and consequent to use of the product;
• masonry works;
• parts of the system (if present) not supplied by
the manufacturer;
Therefore, any technical interventions on the product
for the elimination of the aforementioned defects
and consequent damages must be agreed with the
Technical Assistance Center, which reserves the right
to accept or refuse the relevant assignment and in
any case will not carry out the task as a guarantee,
but as technical assistance to be provided under
the conditions possibly and specically agreed and
according to the rates in force for the work to be
carried out. The user will also be charged for the
costs that may become necessary to remedy his/
her incorrect technical interventions, tampering or, in
any case, factors which can be harmful to the
device and that cannot be attributed to
manufacturing defects. Without prejudice to the
limits imposed by laws or regulations, any warranty of
containment of air and noise pollution is also excluded.
• The product can be used by children over
8 years of age and people with reduced
physical, sensor or mental capacity, or without
experience or the necessary know-how, provided
that they are supervised, or have received
instructions on the safe use of the appliance and are
aware of the dangers an improper use may involve.
Children must not play with the appliance.
• Cleaning and maintenance intended to be
carried out by the user must not be carried out
by children without supervision.
• Do not dry the laundry on the the product.
• The fuel and other ammable materials must
be kept at a suitable distance from the product.
Fire hazard.
• The product must be electrically connected
to a system equipped with a suitable grounding
system.
• In the event of a fault in the switch-on system, do not
force ignition using ammable material. Consult an
authorized technician.
• For non-hermetic products, installation in small rooms
and bedrooms is forbidden.
• Installation is forbidden in environments with an
explosive atmosphere.

Use and Maintenance Manual model “H17 V LIGHT”
6
ENGLISH
1.8 SPARE PARTS
Please, use only original spare parts.
Do not wait for the components to wear from use
before replacing them.
This measure is intended to prevent accidents
to people, animals or property from occurring in
the event of product malfunctioning caused by
defective spare parts.
We recommend you to contact authorized staff for
the replacement of spare parts, worn parts and to
carry out extraordinary maintenance.
1.9 IDENTIFICATION PLATE
The plate placed on the back of the product
outlines all the characteristic data of the appliance,
including the Manufacturer's data, serial number and
CE marking.
1.10 PRODUCT DISPOSAL
Demolition and disposal of the product is at the
sole responsibility of the user, who should do so in
compliance with legislation in force in his country con-
cerning safety matters, respect and safeguard of the
environment.
At the end of its useful life, the product must not be
disposed of as urban waste.
It can be delivered to specic differentiated waste
collection centres made available by municipal
administrations, or dealers providing this service.
Disposing of the product as differentiated waste
means avoiding any possible negative consequences
for both health and environment deriving from
inadequate disposal. Furthermore, it allows for the
recovery of the materials the product is made with,
so as to obtain important savings in energy and
resources.
1.11 HERMETIC PRODUCT
Products manufactured with a perfectly hermetic
structure do not consume oxygen in the environ-
ment, for they take all the air they need outdoor
(when properly installed). Therefore, they can be
positioned inside all homes with a high level of insu-
lation, such as “passive houses” or with “high ener-
gy efciency”. Thanks to this technology, there is no
risk of smoke emissions in the environment and no
ventilation grates are necessary.
As a result, no cold air ows - which can make the
environment less comfortable and reduce the
overall efciency of the system- are created. Hermetic
products can also be installed in the presence of
forced ventilation or in premises which can go into
negative pressure - if compared to the outside.
2CHARACTERISTICS OF PELLETS
Wood pellets are fuel made from pressed sawdust,
often recovered from carpentry processing waste.
The material used cannot contain any foreign
substances such as glue, varnish or other synthetic
substances.
After being dried and cleaned of impurities, sawdust
it is pressed by means of a matrix: the sawdust heats
due to high pressure, activating the natural binders in
the wood; by doing so, pellets maintain their shape
even without adding articial substances. The density
of wood pellets vary according to the type of wood
and can be up to 1.5 or twice as much that of natural
wood. Pellet cylinders have a diameter of 6mm and
a variable length of 10 to 40mm.
Their density is equal to approx. 650 kg/m3. Due to
their low water content (< 10%), they have a high
energy content.
The main quality certications for pellets existing on
the European market make it possible to guarantee
that the fuel falls into class A1 according to ISO 17225-
2: 2014 (ex EN 14961). Examples of these certications
are ENPlus, DINplus, Ö-Norm M7135. In particular,
such certications guarantee that the following char-
acteristics are observed:
• heating power: 4.6 ÷ 5.3 kWh/kg;
• water content: ≤ 10% of weight;
• percentage of ash: max 1.2% of weight
(A1 under 0.7%);
• diameter: 6±1/8±1 mm;
• length: 3÷40 mm;
• content: 100% untreated wood without any
additional binder substances (percentage of bark
max 5%);
• packaging: in sacks made from ecocompatible or
biodegradable material.
For its products, the manufacturer suggests use class
A1 certied fuel complying with EN ISO 17225-2:2014
standard, certied DIN PLUS (more restrictive than class
A1) or else O-NORM M7135.
Pellets must be stored in a dry environment which is
not excessively cold. We also suggest you to keep
some bags of pellets where the product is installed
and operating, so as to dry any humidity in them.
Non-compliance with this aspect reduces the fuel
thermal power. This means that the product will need
greater maintenance.

Use and Maintenance Manual model “H17 V LIGHT”
7
ENGLISH ENGLISH
3 INSTALLATION
When installing the product, the position must be
chosen according to the environment, the discharge
and the chimney ue. Check with your local au-
thority whether there are more restrictive provisions
regarding the combustion air intake and the smoke
discharge system, including the chimney ue and
chimney pot.
The manufacturer cannot be held in any way liable
in the event of installation non-compliant with current
legislation, of incorrect air exchange in the premises,
or electrical connection non-conforming with
standards and/or inappropriate use of the appliance.
Installation must be carried out by a qualied
technician who will provide the purchaser with a
Declaration of Conformity for the system and will
assume complete responsibility for nal installation
and resulting good operation of the product.
In particular, he should ascertain the following:
• that there is an adequate combustion air intake
and good smoke discharge compliant with the type
of product installed;
• other stoves or devices installed do not cause
negative pressure in the room where the product is
installed (only for hermetic appliances, a maximum
of 15 Pa depression in the surroundings is permitted);
• when the product is on, there is no smoke back
draught in the environment;
• smoke evacuation is implement in total safety (di-
mensioning, smoke seal, distances from ammable
materials..).
Once the position where to install the product is
decided, you need to pay attention to the following:
• if the oor is made of combustible material, you
should use protection in suitable material (steel,
glass...), also to protect the front part from any
burning fuel which may fall while during cleaning:
• the oor guarantees adequate load capacity.
if the existing building does not meet the aforemen-
tioned requirements, you should take appropriate
measures (for example a load distribution plate).
3.1 AIR INTAKE
The installation premises of non-hermetic appliances
must be sufciently ventilated with specic openings,
with particular attention to the position (they must
NEVER be blocked), which allow for air reintegration in
the environment.
Air must be drawn directly from the outside (not from
other rooms, garage, etc.) and must have a net useful
section equal or higher than 80 cm2for pellet stoves
and thermostoves (EN 14785) and 100 cm2for boilers
(EN 303-5).
The air intake is not necessary in case of installation
of hermetic appliances that take the air directly
from the outside. Check and respect the ventila-
tion requirements for simultaneous operations with
other combustion appliances and in the presence
of forced ventilation systems or hoods (please, see
section 6.4 of UNI 10683).
3.2 SMOKE CHANNEL AND FITTINGS
‘Smoke channel’ is a term indicating the piping
connecting the combustion appliance with the
chimney ue.
For heat-generating appliances equipped with an
electric fan to expel smoke, the following installation
instructions must be followed (provided by the man-
ufacturer and concerning the maximum length and
number of curves the smoke channels can have).
If no indications for maximum values - or deriving
from preliminary calculations, according to UNI EN
13384-1 - are given, the following provisions must be
applied:
• comply with the EN1856-2 standard;
• the horizontal sections must have at least 3%
upward slope;
• the length of the horizontal section must be
minimal and its projection on plan must not
exceed 4 meters;
• the number of changes of direction - including
that for introduction into the chimney and excluded
that due to the use of a “T” element in appliances
with rear smoke outlet - must not be more than 3;
• the changes of direction must not have an angle
exceeding 90° (a 45° curve is recommended);
• the section must have constant diameter, equal
to the output of the replace up to the tting in the
chimney ue;
• it is forbidden to use exible metal and ber cement
piping. Moreover, the piping must guarantee
pressurized sealing;
• Smoke channels must not cross those premises
in which installation of combustion appliances is
forbidden;
• Use watertight piping with silicone gaskets.
In any case, smoke ducts must be sealed against
combustion products and condensate, and must be
insulated in case they run through the outside of the
installation room. The installation of manual draught
adjustment devices on forced draught appliances is
not permitted.
It is necessary, at rst, to install a vertical smoke
channel section of at least 1 m to guarantee proper
exhuaust of fumes.
When installing and using the the product, all local,
national legislation and European standards must
be met.

Use and Maintenance Manual model “H17 V LIGHT”
8
ENGLISH
3.3 CHIMNEY FLUE
3.4 CHIMNEY STACK
3.5 INSTALLATION OF THE HERMETIC PRODUCT
2
1
1
2
21
When installing the chimney ue, the following
must be applied.
• compliance with EN 1856-1 product standard;
• it must be installed using materials suitable to
guarantee resistance to normal mechanical and
chemical stress, and have a correct insulation, to
avoid formation of condensate. Therefore, it must
be hermetically insulated;
• it must develop mainly vertically and it must not be
choked along its length;
• be correctly spaced using air cavities and
insulated against ammable materials,
• changes in its direction must be no more than 2
and with an angle not exceeding 45°;
• the indoor portion of the chimney ue must
nonetheless be insulated and it can be inserted in
a cavedium, provided that this complies with the
relevant piping standards;
• the smoke channel should be connected to the
chimney ue using a “T” joint with an inspectionable
collection chamber (for the collection of fuel residue
and, particularly, condensate).
It is not possible to connect the appliance to a
chimney ue shared with other combustion
appliances or in the presence of hood exhausts.
It is forbidden to use direct wall discharge or
towards closed spaces or any other form of
discharge not planned by current legislation in the
country of installation (e.g.: in Italy, only roof
discharge is permitted)
UNI 10683 standard states that the stack must meet
the following characteristics:
• the smoke outlet section must be at least
double the inner section of the chimney;
• the stack must be shaped to prevent
water or snow from penetrating;
• the stack must be built in such a way that wind
cannot affect the smoke outlet (wind-proof cap);
• the opening measurement, which is measured
between the lower coverage protective layer
and the lower point of the
smoke outlet section into the atmosphere, must be
outside the back draught area;
• the stack must be built far from antennas or
satellite dishes and must never be used as a
support.
It is recommended to check safe distances, which
must be observed in the presence of
combustible materials, and the type of insulating
material to be used (such data are made available
on the chimney ue plate).
In the event of installation of a hermetic product,
you can connect it with the piping system by
choosing one of the following:
• smoke discharge (1) and recovery of combustion
air directly from the outside (2).
• smoke discharge (1) and combustion air
canalization (2), taking advantage of its coaxial dis-
charge to expel smoke and draw air in; therefore,
the installation of a grate to recirculate the air in-
side the premises where the product is placed is not
necessary.
For coaxial installation or for drawing air directly
from the outside, it is recommended not to exceed
2.5/3 linear meters, in order to ensure proper
oxygen supply to combustion.

Use and Maintenance Manual model “H17 V LIGHT”
9
ENGLISH ENGLISH
3.6 EXAMPLES OF PROPER INSTALLATION
9
67
7
A
1
2
3
3
4
5
8
8
8
6
9
9
6
7
B
C
6
In the event of particular atmospheric conditions
and/or hostile draught conditions, the product can
overcome these situations provided that due instal-
lation measures have been taken, e.g. installation of
a wind-proof chimney pot.
A proper installation of the product (A) needs for
a horizontal section to connect it to a pre-existing
chimney ue. A slope of 3-5% must be observed, so
as to reduce ash deposit in the horizontal pipe sec-
tion - which must not exceed 3m in length (1). The
pre-existing chimney ue must be inspectionable (2).
An insulated chimney ue (3) with an internal
diameter of no less than 100mm is necessary to in-
stall the product (B), since the smoke piping system
has been assembled outside the building.
A single-wall chimney ue (4) for the section inside
the building is also needed for a proper installation
of the product. Relating to the part placed in the at-
tic, it is recommended to install a Ø120mm chimney
ue, with perforation for the passage of the piping,
increased of:
• minimum 100mm around the pipe, if in contact
with inammable parts such as cement, bricks, etc.;
• minimum 300mm around the pipe (or as described
in the data shown on the plate) if in contact with
ammable parts such as wood etc.
In both cases, please provide with adequate insula-
tion the space between the chimney ue and the
attic (5).
It is also recommended to check and comply with
the data shown on the plate of the chimney ue,
particularly the safety distances to be observed
from combustible materials.
The previous rules also apply for holes made on
walls.
On both the lower part and on the inlet of the
chimney ue, for all 3 installations, a “T” tting (6)
equipped with inspection plug (7) is employed.
The upper part of the chimney ue, for all 3 installations,
is equipped with a wind-proof chimney pot (8).
For each installations, a grate has been provided
inside the building to guarantee correct oxygenation
of the premises where the product is positioned.
The grate is not necessary if the appliance is
hermetically sealed.
It is not recommended to install a 90° curve as an
initial section, for it would cause ash to block the
smoke passage quickly, resulting in draught inef-
ciency.in the appliance.

Use and Maintenance Manual model “H17 V LIGHT”
10
ENGLISH
3.7 DOCUMENTS TO BE ISSUED
3.8 UNPACKING THE PRODUCT
Packaging is composed of boxes in recyclable card-
board complying with RESY standards and wooden pal-
lets. All packaging materials can be re-used for similar
use or, if necessary, disposed of as urban waste, in com-
pliance with current laws.
Remove the strap binding the pallet to the packaging
and lift the cardboard Fig.1; remove the plastic bag
around the product, making sure it is intact.
The body must always be handled with a trolley, paying
attention to keep it in a vertical position.
Make sure both the door and its glass are protected
against mechanical impact which would compromise
their integrity.
If possible, unpack the product near the area where it
will be installed.
To release the appliance from the pallet, you can un-
screw the two screws placed under the pallet (13 hex
key). Fig.2
Position the equipment and proceed connetìcting it to
the chimney ue.
By using the 4 adjustment feet, nd the right level so
that the smoke discharge and the pipe are connected
correctly.
Once the installation has been carried out, the tech-
nician must provide to the user with the following:
• use and maintenance booklet of the appliance
supplied by the manufacturer;
• technical documents of all the accessories
used and subject to maintenance;
• documents related to the exhaust system;
• system booklet (when applicable);
• installation certicate;
Documentation useful for liability purposes
of the installer must include:
• a detailed description (also including photo-
graphs) of the presence of other heat generators;
• Declaration of Conformity of the system (M.D. 37/08);
• general description, diagram or photographic
documentation of changes made to the system, if
any intervention is necessary during installation;
• Use of certied material with the CE mark
(305/2011);
• possible instructions related to the warranty;
• date and signature of the installer;
NOBIS SRL cannot be held in any way liable in the
event of non-compliance with the installation and
start-up standards of its products.
Fig.1
Fig.2

Use and Maintenance Manual model “H17 V LIGHT”
11
ENGLISH ENGLISH
COVERING STEEL ASSEMBLY
LEFT FRONT PANEL ASSEMBLY (g.1)
Take the left panel from the packaging and take
it to vertical position to x the 2 hinges, with Allen
screw of 4 and wrench of 7. The door can be ope-
ned and closed to allow access to the emergency
console.
3.9
RIGHT FRONT PANEL ASSEMBLY (g.2)
Take the left panel from the packaging and take
it to vertical position to x the 2 hinges, with Allen
screw of 4 and wrench of 7.
Open the black glass door, where the re door
resides and attach the right glass panel, to the door
frame, as access to the right panel is only allowed to
an authorized Nobis technician.
Fig.1
Fig.2

Use and Maintenance Manual model “H17 V LIGHT”
12
ENGLISH
Below is the result of the device with the
mounted lining.
3.10 HYDRAULIC CONNECTION
This section of the maual illustrates all the steps to
follow in order to connect the hydraulic system of
the product to the house system.
Product connection to the the house hydraulic
system must be carried out exclusively by specialized
personnel, able to perform the installation to per-
fection and complying with any existing provisions
in the Country of Installation.
685
540 90
127
3/4 MANDATA
IMPIANTO
3/4 RITORNO
IMPIANTO
CONNESSIONE
SCARICO
76
3/4” Heating
water return
System
drain
3/4” Heating
water supply

Use and Maintenance Manual model “H17 V LIGHT”
13
ENGLISH ENGLISH
3.11 ELECTRICAL CONNECTION
The product power-supply cable must only be con-
nected after concluding installation and assembly
of the product, it must not be in contact with hot
parts and must remain accessible after installation.
To carry out electrical connection, proceed as
described below:
• connect the power-supply cable on the back
of the appliance;
• connect the cable plug to the electrical socket on
the wall.
You can connect an outer programmable ther-
mostat to the appliance for its regulation or to
switch it on and off. For connection and manage-
ment of the “outer thermostat” function, please
see the specic chapter in this manual.
In order to remove any residues and deposits, wash
the entire system before connecting the product.
Always install gate valves upstream of the product
so as to isolate it from the water system, should it be
necessary to move or relocate it to perform routine
and/or extraordinary maintenance operations.
Connect the appliance using exible pipes to avoid
overtightening it to the system and to allow slight
movements.
3-bar DRAIN VALVE
The inspectable safety valve is located on the back
of the product. It is mandatory to connect a rubber
pipe (not supplied) to the safety drain - able to with-
stand a temperature of 110 °C - to be taken outside
for possible water outlet.
The appliance manufacturer is not responsible for
any ooding caused by the intervention of the
safety valves in case of inaccurate connection to
the outside of the product and to a proper col-
lection and drain system.
SYSTEM CLEANING
Connections must be easy to disconnect by means
of swivel ttings.
To preserve the heating system from harmful corro-
sion, scaling or deposits, ush the system using ap-
propriate products - in compliance with the UNI 8065
standard (treatment of water in heating sys-tems for
civil use) - before installing the appliance is para-
mount.
EXPANSION VESSEL
In case of overheatinghe product is equipped with
an expansion vessel to compensate for the increa-
se in water pressure inside the boiler. Therefore, it is
necessary to reckon whether the expansion vessel
the product is equipped with is capable enough.
Otherwise, please consider adding a supplementary
expansion vessel.
SYSTEM FILLING
To ll the system, install a pipe in the dedicated inlet
and, by opening the tap, proceed with the lling.
During this operation, the venting of any air present
in the system is guaranteed by an automatic air
vent “Jolly valve” (supplied with the product).
To allow the valve to vent, it is recommended to
loosen the gray cap of one turn. The COLD system
loading pressure must be 1 bar.
If system pressure happens to drop while operating
(during evaporation of gases dissolved in the water)
below minimum values - as indicated above - the
User must act on the lling tap to bring it back to the
initial value. For a proper HOT work of the appliance,
the pressure in the boiler must be 1.5 bar. To monitor
system pressure, t a pressure gauge or display in-
stantaneous pressure in STOVE STATUS. Always close
the tap after the lling operation has been carried
out completely.
It is normal to hear noises and gurgling sounds: it
means that the air in the system has not been com-
pletely removed.
WATER FEATURES
The characteristics of the water used for lling the
system are very important to avoid mineral salt de-
posits and scaling along the pipes inside the boiler
and in the exchangers.
Therefore, please pay attention to the following:
• Water hardness in the system, to prevent any
issues due to scaling.
• Installation of a water softener if water hardness
makes it necessary.
• Fill the system with treated water (demineralized).
• Possible installation of an anti-condensation circuit.
• Installation of hydraulic shock absorbers to avoid
the so called “water hammer” effect along pipes
and joints.
It must be remembered that scales drastically redu-
ce performance due to their low thermal conducti-
vity.

Use and Maintenance Manual model “H17 V LIGHT”
14
ENGLISH
SCHEMA IMPIANTO 00 - COLLEGAMENTO DIRETTO AD IMPIANTO
1
23
4
5
6
7
2
9
11
12
12
13 14
10
1 - 2 - 3 - 4 - 5 -
Termostufa a pellet Termometro Manometro Valvola anticondensa Separatore d’impianto
6 - 7 - 8 - 9 - 10 -
Collettore impianto Gruppo distribuzione miscelato Gruppo distribuzione in diretta Caldaia a gas Acquedotto
Acqua sanitaria Cronotermostato a parete Riscaldamento a pavimento Riscaldamento a termosifoni Valvola a tre vie Risc./Sani
Accumulo ACS (Bollitore) Flussostato ACS Valvola miscelatrice Accumulo acqua tecnica (Puffer)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -
8
4EXAMPLES OF HYDRAULIC DIAGRAMS
DIAGRAM 00 - DIRECT CONNECTION TO THE SYSTEM
1 - 2 - 3 - 4 - 5 -
Pellet stove Thermometer Pressure gauge Anti-condensation valve System separator
6 - 7 - 8 - 9 - 10 -
System manifold Mixed distribution group Direct distribution group Gas boiler Water duct
Sanitary water Wall thermostat Floor heating Heating with radiators Three-way heating valve
DHW storage tank (Boiler) DHW flow switch Mixing valve Technical water storage tank (hot water tank)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -

Use and Maintenance Manual model “H17 V LIGHT”
15
ENGLISH ENGLISH
SCHEMA IMPIANTO 01 - COLLEGAMENTO DIRETTO AD IMPIANTO + ACCUMULO ACS (BOLLITORE) 1 - 2 - 3 - 4 - 5 -
Termostufa a pellet Termometro Manometro Valvola anticondensa Separatore d’impianto
6 - 7 - 8 - 9 - 10 -
Collettore impianto Gruppo distribuzione miscelato Gruppo distribuzione in diretta Caldaia a gas Acquedotto
Acqua sanitaria Cronotermostato a parete Riscaldamento a pavimento Riscaldamento a termosifoni Valvola a tre vie Risc./Sani
Accumulo ACS (Bollitore) Flussostato ACS Valvola miscelatrice Accumulo acqua tecnica (Puffer)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -
1
23
4
5
6
7
2
9
11
12
12
13 14
10
8
15
16
17
18
DIAGRAM 01 - DIRECT CONNECTION TO THE SYSTEM + DHW TANK 1 - 2 - 3 - 4 - 5 -
Pellet stove Thermometer Pressure gauge Anti-condensation valve System separator
6 - 7 - 8 - 9 - 10 -
System manifold Mixed distribution group Direct distribution group Gas boiler Water duct
Sanitary water Wall thermostat Floor heating Heating with radiators Three-way heating valve
DHW storage tank (Boiler) DHW flow switch Mixing valve Technical water storage tank (hot water tank)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -

Use and Maintenance Manual model “H17 V LIGHT”
16
ENGLISH
SCHEMA IMPIANTO 02 - COLLEGAMENTO DIRETTO AD ACCUMULO ACQUA TECNICA (PUFFER) 1 - 2 - 3 - 4 - 5-
Termostufa a pellet Termometro Manometro Valvola anticondensa Separatore d’impianto
6 - 7 - 8 - 9 - 10 -
Collettore impianto Gruppo distribuzione miscelato Gruppo distribuzione in diretta Caldaia a gas Acquedotto
Acqua sanitaria Cronotermostato a parete Riscaldamento a pavimento Riscaldamento a termosifoni Valvola a tre vie Risc./Sani
Accumulo ACS (Bollitore) Flussostato ACS Valvola miscelatrice Accumulo acqua tecnica (Puffer)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -
1
23
4
6
7
2
9
11
12
12
13 14
10
8
18
10
19
DIAGRAM 02 - TECHNICAL WATER TANK (PUFFER) 1 - 2 - 3 - 4 - 5-
Pellet stove Thermometer Pressure gauge Anti-condensation valve System separator
6 - 7 - 8 - 9 - 10 -
System manifold Mixed distribution group Direct distribution group Gas boiler Water duct
Sanitary water Wall thermostat Floor heating Heating with radiators Three-way valve (heating/domestic)
DHW storage tank (Boiler) DHW flow switch Mixing valve Technical water storage tank (hot water tank)
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -

Use and Maintenance Manual model “H17 V LIGHT”
17
ENGLISH ENGLISH
SCHEMA IMPIANTO 03 - COLLEGAMENTO AD ACCUMULO ACQUA TECNICA (PUFFER) + ACCUMULO ACS (BOLLITORE) 1 - 2 - 3 - 4 - 5-
Termostufa a pellet Termometro Manometro Valvola anticondensa Separatore d’impianto
6 - 7 - 8 - 9 - 10 -
Collettore impianto Gruppo distribuzione miscelato Gruppo distribuzione in diretta Caldaia a gas Acquedotto
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -
123
4
2
9
11
12
12
13 14
10
18
19
Acqua sanitaria Cronotermostato a parete Riscaldamento a pavimento Riscaldamento a termosifoni Valvola a tre vie Risc./Sani
Accumulo ACS (Bollitore) Flussostato ACS Valvola miscelatrice Accumulo acqua tecnica (Puffer)
6
78
15
16
17
DIAGRAM 03 - TECHNICAL WATER (PUFFER) + DHW TANK 1 - 2 - 3 - 4 - 5-
Pellet stove Thermometer Pressure gauge Anti-condensation valve System separator
6 - 7 - 8 - 9 - 10 -
System manifold Mixed distribution group Direct distribution group Gas boiler Water duct
11 - 12 - 13 - 14 - 15 -
16 - 17 - 18 - 19 -
Sanitary water Wall thermostat Floor heating Heating with radiators Three-way heating valve
DHW storage tank (Boiler) DHW flow switch Mixing valve Technical water storage tank (hot water tank)

Use and Maintenance Manual model “H17 V LIGHT”
18
ENGLISH
6.1 PRODUCT DATA SHEET
6.2 TECHNICAL FEATURES
* this value can vary based on the type of energy class of the
home and the type of pellet used.
The data outlined are approximate and non-binding
and can vary based on the type of pellet
used. The manufacturer reserves the right
to make changes for the purpose of
improving product performance.
6TECHNICAL DATA OF THE PRODUCT
PRODUCT DATA SHEET
EU 2015/1186
Brand Nobis
Model H17 V LIGHT
Energy efciency class A++
Direct thermal power (Kw) 3.0
Indirect thermal power (Kw) 17.0
Energy efciency index 132
Useful efciency (Nominal power %)
92.5
Useful efciency (Reduced power %)
93.3
Comply with the warnings and instructions for installation
and periodic maintenance of the instructions manual.
Modello H17 V LIGHT
Reduced Nominal
Weight of appliance (kg) 210
Water quantity (lt) 20
Min. working pressure (bar-kPa)
1 - 100
Max. working pressure (bar-kPa)
2.5 - 250
Ø air inlet (mm) 60
Ø smoke outlet pipe (mm) 80
Vol. max. heating* (m3)
491
Power introduced (kW) 8.5 21.6
Yield introduced (kW) 7.9 20.0
Water output power (kW)
6.4 17.0
Yield (%) 93.3 92.5
CO 13% O2 (%) 90 20
Tank capacity (kg) 25
Pellet hourly consumption (kg/h)
1.74 4.42
Autonomy (h) 14.4 5.7
Absorbed electrical power (W)
310
Electrical power supply (V-Hz)
230-50
Discharge gas ow (g/s) 7.8 12.2
Minimum draught (Pa) 10 10
Smoke temperature (°C) 89 142
5 MAINTENANCE
Maintenance operations, excluding routine cleaning
(explained in the relevant paragraph), must be car-
ried out by authorized, technical staff. Remember,
before carrying out any maintenance operation, to
implement the following precautions:
• all parts of the product must be “cold”;
• ensure there is no form of combustion whatsoever
(for example hot ash);
• use safety devices as per directive;
• remove the plug from the electrical socket;
• once maintenance has been carried out, reset
the product paying attention to re-activate all the
safety devices.
5.1 MAINTENANCE OF THE SMOKE SYSTEM
The chimney ue must always be kept clean,
since deposits of soot or fuel residue reduce the ow
rate, blocking the tube’s draught, thus compromising
good operation of the product and, if in large quantities,
cause re. it is mandatory to have the chimney cleaned
and checked by a qualied chimney sweep at least
once a year or after a prolonged stop for non-use of the
appliance. At the end of the check/maintenance, ask
for a report to be issued stating that the system is safe.
Failure to clean jeopardizes the safety of the system.
It is compulsory for the system to be grounded and
have a differential switch in compliance with cur-
rent laws. Also, ensure the socket is compatible with
the type of plug on the power cable used.
5.2 PRODUCT MAINTENANCE
Carry out maintenance at least once a year or on
each “Service Hours” signalling (signal appearing on
screen when the limit of working hours, over which
excellent operation is not guaranteed, have been
exceeded).
In this phase, the authorized technician should:
• completely and accurately clean the
smoke pipes;
• check the sealing status of all the gaskets;
• remove crushed pellet residue inside
the pellet tank;
• re-assemble all parts of the appliance;
• check correct operation and good quality of
combustion.
This chapter gives the end user all information related
to the technical data of the product, its dimensions,
installation measurements, minimum distance to from
walls and furniture, sofas, etc. to be observed.

Use and Maintenance Manual model “H17 V LIGHT”
19
ENGLISH ENGLISH
6.3 DIMENSIONS
6.4 SAFE DISTANCES
Distanza minima da materiali inammabili
R Right hand side 150 mm
L Left hand side 150 mm
P Rear 100 mm
F Front 1000 mm
Floor saving platform
7 PRODUCT CONFIGURATION
7.1 CONFIGURATION OF THE REMOTE CONTROL
Remove the protective cover of the batteries on
the rear of the remote control, as shown in gure ,
and insert 3 batteries (type AAA Alkaline 1.5V)
in the remote control compartment, paying
attention to polarity. Close the protective cover of
the batteries as shown in gure B.
A
AB
Once exhausted, the batteries must be disposed of
in a dedicated collection center.
To protect batteries from adverse conditions or misuse,
remember to:
- keep the remote control away from heat sources,
risk of explosion;
- remove the batteries in case of long periods of non-use
of the remote control, risk of oxidation and liquid leakage;
Nobis srl declares that the type of “Handheld” radio
device complies with Directive 2014/53/EU.
Full text of the EU declaration of conformity is available
at the following Internet address:
https://www.nobisre.it/wp-content/uploads/2019/04/DoC-Palmare-Radio-Nobis-1.pdf
After showing a rst short screen with the manufacturer’s
logo, the remote control will list all languages in which
the menu is available.
CAUTION
Risk of
explosion if battery
is replaced with
the wrong type.
ALKALINE
ALKALINE
ALKALINE
Once installation, assembly of the coverings (where
present as a kit) and electrical connection have
been duly carried out, access the rear part of the
product to power it.
The “I/O” switch in the gure above must be
positioned on “I”. In the event of a power failure,
check the condition of the fuse placed under the
switch (4A fuse EU conguration). During periods of
non-use, you are advised to disconnect the cable
powering the appliance, and also the batteries from
the remote control.
A
B
940
1120
355
L
P
F
R
PANNELLO DI EMERGENZA
340
80
Uscita Fumi 123
172,5
750
123
80
Uscita Fumi
60
Presa Aria
89
250
Ø 60 air
inlet
340
80
Uscita Fumi
123
172,5
750
123
80
Uscita Fumi
60
Presa Aria
89
250
A
B
Ø 80
smoke
discharge
Ø 80 smoke discharge

Use and Maintenance Manual model “H17 V LIGHT”
20
ENGLISH
Select your standard language, using the keys .
Press to conrm and move on to the next
screen.
To work properly, the remote control requires interfacing
with the electronic board inside the product.
For this reason, the display will show the following
installation message.
If this is the rst use of the remote control, choose
YES with the selection keys .Press to con-
rm and move on to the next screen.
Follow the instructions to link the appliance to the
display via remote, as showed in the gure below.
Keep the remote communication key of the
electronic board (placed on the rear of the product)
pressed for a few seconds to start the unit search
procedure.
The yellow, ashing led, under the icon indicates
that the electronic board is waiting for the remote
control signal.
Press the conrmation key on the remote control
to make the components communicate with one
another.
A tick sign on the display, accompanied by an acoustic
signal, indicates that the remote connection operation
has been carried out successfully.
If the batteries are replaced, you don’t necessarily
have to follow the initialization procedure of the re-
mote control once again. In this case, when the dis-
play will show the message “FIRST INSTALLATION?”,
select NO and press the conrmation key .
OK
OK
OK
OK
7.3 PELLET LOADING
7.2 CONFIGURATION OF EXT. THERMOSTAT
TERMINAL
EXTERNAL THERMOSTAT
Fuel is loaded by opening the door and inserting
pellets from the upper part of the product. Please,
make sure that pellets contained in the bag do not
fall around the edges of the tank, paying particular
attention to centering while loading. Also, avoid the
packaging of the pellets to enter in contact with hot
surfaces.
If you want to manage the appliance from a different
room (i.e. where the remote control cannot commu-
nicate), you can connect an external thermostat to
the product, to adjust combustion or, by activating
a particular function, switch the product on/off. As
shown in the gure below, connect the terminals of
the thermostat to the terminal board on the back of
the product (near the emergency panel).
Once the electrical connection has been carried out,
it is necessary to activate the recognition function from
the SETTINGS menu to allow the control unit to recognize
the presence of the external thermostat (see paragraph:
“ENABLE EXTERNAL THERMOSTAT” ).
By enabling the function that enables the external thermo-
stat, reading and management of room temperature are
inhibited on the remote control. The remote control will dis-
plays TON when a higher temperature is required, TOFF if
the temperature set on the thermostat has been reached.
Make sure you close the cover of the tank properly
after loading pellets. Closure is controlled by an electronic
contact (when applicable). In case of failure to close, a
warning signal noties the user to pay attention to closure.
A further alarm will be activated in case the warning is dis-
regarded.