SOLZAIMA Douro 12 User manual

Pellet Stove
English
Instruction Manual
Models
Douro 12/17/23 kW
Read these instructions carefully before installing, using and servicing the unit. This
instruction manual is provided with the product.
Mod. 21 -G

Thank you for purchasing a SOLZAIMA appliance.
Please read this manual carefully and retain it for future reference.
* All our products fulfil the requirements of the Construction Products Directive
(Reg.UE nº 305/2011) and have been approved with the CE conformity mark;
* The Pellet Burning Free Standing Fires are designed according to EN 14785:2008
Standards;
* SOLZAIMA disclaims any responsibility for damages to the unit if installed by non-
qualified personnel;
* SOLZAIMA is not responsible for any damage to units not installed and used in
compliance to the instructions included in this manual;
* All local regulations, including but not limited to national and European standards,
must be observed when installing, operating and servicing the unit;
* For assistance, please contact your unit's supplier or installer. You must have the
wood pellet stove serial number located on the identification plate on unit's back panel
and on the sticker on the plastic cover of this manual ready;
*The technical service must be performed by the unit Installer or Supplier, except on
situations where the assessment performed by the installer or service engineer
determines that SOLZAIMA should be contacted, if required.
Contacts for technical support:
www.solzaima.pt
apoio.clien[email protected]
Address: Rua dos Outarelos; nº 111;
3750-3 2 Belazaima do Chão
Águeda - Portugal

Table of Contents
1. Package content ................................................................................... 2
1.1. Unpacking the unit ..................................................................................... 2
2. Safety precautions ........................................................................ 3
2.1. For your safety, we recommend that: ............................................................ 3
3. Advice on action in the event of a fire in a chimney (includes equipment) ... 5
4. Technical specifications .........................................................................
5. Installation of the free standing pellet fire unit ......................................... 9
5.1. Assembly of removable parts ..................................................................... 10
5.2. Installation requirements ........................................................................... 13
5.3. Installation of ducts and fume extraction systems ........................................ 14
5.4. Installation without a chimney ................................................................... 14
5.5. Installation with a chimney ........................................................................ 18
. Hydraulic Installation .......................................................................... 19
.1. Operating mode for radiator/buffer tank ...................................................... 19
7. Fuel .................................................................................................. 20
8. Using the Free Standing Pellet Fire ....................................................... 21
9. Remote Control .................................................................................. 23
9.1. Remote control and display ........................................................................ 23
9.2. Display information summary .................................................................... 24
9.2.1. Menu ........................................................................................... 24
9.2.2. Water temperature ........................................................................ 25
9.2.3. Date ............................................................................................ 25
9.2.4. Timer ........................................................................................... 28
9.2.5. Sleep (this menu is displayed only while the unit is operating) ............ 32
9.2. . Info ............................................................................................. 33
9.2.7. Settings Menu ............................................................................... 3
9.2.8. Technical Menu ............................................................................. 40
10. Start-up ............................................................................................ 42
10.1. Stop ...................................................................................................... 42
10.2. Turning Off the Unit ................................................................................ 42

11. Instructions for removing the side covers (Douro 17 kW and 23 kW) ........ 43
11.1. Remove side covers ................................................................................ 43
11.2. Pellet reservois lid ................................................................................... 43
11.3. Filling the pellet reservoir ........................................................................ 43
12. Installation and operation with the remote control (chrono-thermostat) – not
included in free standing units ............................................................................ 44
12.1. Instructions for remote control assembly ................................................... 4
13. Maintenance ...................................................................................... 48
13.1. Daily Maintenance .................................................................................. 48
13.2. Weekly Maintenance ............................................................................... 48
13.3. Additional cleaning .................................................................................. 52
13.4. Cleaning the glass .................................................................................. 57
14. Alarm/ Failure / Recommendation List ........................................... 58
15. Maintenance Plan and Log ................................................................... 0
1 . Maintenance Guide Label..................................................................... 4
17. Installation Diagrams .......................................................................... 5
18. Electrical diagram of the Free Standing Pellet Fire unit ............................ 9
19. Pump UPM3 FLEX AS 15-70 130mm ..................................................... 70
20. Life Cycle of a Free Standing Fire Unit ................................................... 73
21. Sustainability ..................................................................................... 73
22. Warranty ........................................................................................... 74
22.1. Model-specific conditions ......................................................................... 74
22.2. Warranty general conditions ..................................................................... 74
23. Annexes ............................................................................................ 83
23.1. Timer weekly programming ...................................................................... 83
23.2. Flow chart Douro 12 kW .......................................................................... 84
23.3. Flow chart Douro 17 kW and Douro 23 kW ................................................. 87
23.4. Statement of Performance ....................................................................... 90

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Solzaima
Solzaima's vision has always been clean, renewable and more economical energy. For
this reason, we have been manufacturing biomass heating equipment and solutions for
more than 40 years.
Fruit of the persistence and the unconditional support of its network of partners,
Solzaima is today leader in the production of biomass heating, whose best examples
are the recuperators of central heating to water and its range of salamanders to
pellets.
We annually equip more than 20.000 homes with biomass heating solutions. It signals
that consumers are aware of the most environmentally friendly and economical
solutions.
Solzaima has ISO9001:2015 Quality Certification and ISO14001:2015 Environmental
Certification.

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1. Package content
Solzaima ships the unit with the following components:
- Free standing pellet fire model Douro 12 kW, Douro 17 kW or Douro 23 kW;
- Side covers, top front cover and bottom front cover;
- Access to the brochure of the online manual;
- Power cable.
1.1. Unpacking the unit
When unpacking the unit, please refer to the illustrations below. First remove the
retractable bag containing the cardboard box (1-a). Then pull the cardboard box out
(1-b) by lifting it and remove the bag containing the free standing fire unit (1-c) and
the styrofoam plates. Finally, unscrew the four parts securing the unit to the wood
pallet (1-d and -e).
a) b) c)
d) e)
Figure 1 - Unpacking the free standing fire unit

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2. afety precautions
Solzaima is not liable for any damages to the unit if the specified precautions, warnings
and operating procedures are not followed.
Units manufactured by Solzaima are easy to operate and special attention was given to
their components in order to protect users and installers against accidental damages.
The units must only be installed by an authorised engineer, who should supply the
client with a relevant statement of conformity and who shall be liable for the final
installation and consequent product good operating conditions.
This unit must be used according to its intended use as specified by the manufacturer.
The manufacturer is excluded from all liability, by contract or by tort, caused by injury
to people, animals or property arising from misuse or faulty installation or servicing.
After removing the packaging, verify the contents to check their integrity and
completeness. If the content of the package fails to correspond to that indicated in
point 1, contact the salesperson from whom you purchased the unit.
All the unit's components guarantee its operation and energy efficiency and should only
be replaced with original parts provided by an authorised technical assistance centre.
The unit must be serviced at least once a year by the installation engineer.
This manual is provided with the product. Please keep it close to the unit.
2.1. For your safety, we recommend that:
• Make sure you fully read and understand this instruction manual before using
the free standing pellet fire as a biomass heating unit;
• Make sure that the hydraulic circuit was correctly assembled and connected to the
water supply before turning on the free standing pellet fire;
• The free standing pellet fire is not intended for use by children or persons with
reduced physical, sensory or mental capabilities, or lack of experience or knowledge,
unless they are under supervision or have been instructed concerning the use of the
unit;
• Do not touch the free standing fire when barefoot or if any part of your body is wet
or humid;
• Do not tamper with safety or adjustment features without the manufacturer's
authorization;
• Do not cover or reduce the size of the vents at the installation area;
• The free standing pellet fire requires a clear space around the unit for proper

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combustion, so possible air tightness of the location or any existing air extraction
sources in the room may prevent the unit proper operation;
• The existence of vents is a requisite for proper combustion;
• Do not leave the packing materials near children;
• During normal operation, Free Standing Fire unit's door must not be opened;
• Some parts of the unit may overheat during normal operation, so avoid direct
contact with parts such as the door handle and glass;
• Check the existence of any obstructions on the fume duct before turning on the unit
after a long period of inactivity;
• This free standing pellet fire unit is intended for residential use in protected areas.
Safety systems may turn off the unit. If this occurs, contact the technical assistance. In
any circumstances should you attempt to interfere with the safety systems;
• The free standing pellet fire is a biomass heating unit equipped with an electric
fume extractor. The occurrence of any power failure during its use may prevent fume
extraction and the room will be filled with smoke. For this reason, you should have a
natural fume extraction system, like a chimney, available;
• Solzaima offers you an optional safety system which allows the Free Standing Fire
unit to be connected to a UPS so that during any power failure the fume extractor will
still operate until complete extraction of all the fumes;
• If you intend to use the Free Standing Fire unit while you are away from home or
unattended, you should use the safety system specified above for total safety during
any power failure;
• During operation, NEVER turn off the free standing fire unit by disconnecting the
electric plug. The fume extractor on the free standing pellet fire unit is electric so
disconnecting the power plug will prevent the extraction of combustion fumes;
• Your unit must be disconnected from the mains for servicing. Before doing this, the
unit must be totally cooled down (if operating before);
• Never touch the interior of the unit without disconnecting it from the power mains;
• On backboiler models, the maximum temperature of the water that can be set by
the user (water set-point temperature) is 85°C. In the event of a temperature of 90ºC
being reached, the free standing pellet fire unit automatically disconnects and the
respective alarm is activated.

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3. Advice on action in the event of a fire in a chimney
(includes equipment)
 Try to extinguish the fire without putting your life at risk.
 If within a minute you can not extinguish the fire, you should call the fire
department.
 Close the doors and windows or partition where the fire has flared.
 Disconnect the electric current and close the gas before leaving your home.
 Once outside, you must wait for the firefighters and be ready to give you the
following information: location of the fire, possible materials that are burning and what
they can do to prevent the progression of fire.

4. Technical specifications
Features
Douro
12 kW Douro 17 kW Douro 23 kW Units
Weight 185 202 219 kg
Height 1110 1153 1215 mm
Width 17 595 3 mm
Depth 80 57 730 mm
Diameter of the fume discharge pipe 80 100 100 mm
Reservoir capacity 30 30 45 kg
Maximum heating capacity 295 391 502 m³
Maximum overall thermal power (water/air) 11,5 / 1,5 14,2 / 3 18,8 / 3,3 kW
Minimum thermal power (water/air) 3,8 / 1,2 4,3 / 0,8 4,3 / 0,8 kW
Minimum fuel consumption 1,1 1,1 1,1 kg/h
Maximum fuel consumption 1,5 3,9 5,1 kg/h
Rated electric power 100 134 134 W
Electric power at start-up (<10 min.) 40 434 434 W
Rated voltage 230 230 230 V
Nominal frequency 50 50 50 Hz
Thermal yield at rated thermal power 92,0 91,1 89,2 %
Thermal yield at reduced thermal power 95,0 93,8 93,8 %
Combustion gas flow (max.) 21,0 14,8 18,8 g/s
Combustion gas flow (min.) 44,0 ,9 ,9 g/s
Max. gas temperature 108 128 153 ºC
Min. gas temperature 2 ºC
CO emissions at rated thermal power 0,013 0,02 0,02 %
CO emissions at reduced thermal power 0,025 0,024 0,024 %
Draught in the chimney 12 12 12 Pa
Unit water volume 19 22 22 L
Draught in the chimney 49,1 49,1 49,1 dB(A)
Table 1 - Technical specifications
Tests performed using wood pellets with a heating capacity of 4,9 kWh/kg.
The above information was obtained during product homologation tests performed at independent
laboratories accredited for pellet unit tests.

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Front Side Rear Top
Figure 2 - Dimensions of the free standing pellet fire unit (Douro 12 kW)
Front Side Rear Top
Figure 3 - Dimensions of the free standing pellet fire unit (Douro 1 kW)
Front Side Rear Top
Figure 4 - Dimensions of the free standing pellet fire unit (Douro 23 kW)

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Figure 5 - Hydraulic connections of the free standing pellet fire unit (Douro 12 kW)
Figure 6 - Hydraulic connections of the free standing pellet fire unit (Douro 1 kW)

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Figure - Hydraulic connections of the free standing pellet fire unit (Douro 23 kW)
5. Installation of the free standing pellet fire unit
Before installing, please perform the following steps:
 Upon reception, check the product for completeness and to determine that is does
not show any damage signs. Any damages or defects should be checked before the
unit is installed;
 The unit is equipped with four adjustable height feet at the base which allow for a
simple regulation when installed on a non flat surface;
Figure 8 – Adjustable feet

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 Remove the instruction manual from the package and hand it over to the cliente;
 Connect an 80mm wide (Douro 12 kW) or 100mm wide (Douro 17kW or Douro
23kW) duct between the combustion gas output and the outgoing fume extraction duct
of the building (e.g. chimney) – check diagrams point 5;
 If a tube is used for combustion air inlet from the outside, it shall be no longer than
0cm horizontally or present offsets (such as bends);
 Perform the hydraulic installation;
 Connect the 230VAC power cable to a grounded socket;
 The surface of the unit where the hot air outlet is located must be facing the area to
be heated;
 The unit's remote control has a programmable thermostat. As an option, a
conventional external programmer may be used (not included) to automatically setup
the unit's operating periods. This should be connected through cable to the optional
230VAC programmer plug (not provided).
5.1. Assembly of removable parts
After the installation, the Free Standing Fire unit should be fitted with the removable
covers.
 Douro 12 kW
Before installing the casings, you should check if the package is complete and in good
condition. Any possible damage or missing elements should be reported before
proceeding with the installation.
This manual describes how to install the casings for the Stove.
To install the casings, the installer must have available:
Figure 9 - Material required to install the casings with the free standing fire
Star shaped screwdriver
PH2 screw

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IMPORTANT NOTICE: Before installing the casings, it is required that the unit
is turned off (unplugged from the power socket).
To assemble some of this models, each kit must include the following parts:
 CA ING 12 kW (Bordeaux, White or Black)
Figure 10 - Douro 12 kW Colors
 CA ING Douro 12 kW Oak
Figure 11 - Douro 12 kW Oak
The covers should be placed on the pillars and grille slots identified in Figure 12-a and
Figure 12-b.
The screw placed in the salamander must be removed and tightened after placing the
side cover as shown in Figure 12-c.

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a) b)
c)
Figure 12 - Casings Douro 12 kW
 Douro 17 kW and Douro 23 kW
 Top front cover
To install the top front cover, place it over the unit (Figure 13-a) and then tighten the
screws that secure it to the top panel of the unit (Figure 13-b).
a) b)
Figure 13 - Assembly of the top front cover

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 Bottom front cover
The bottom front cover can be assembled by removing the screws located on the
bottom part of the unit. Then place the part in the appropriate position (Figure 14-a)
and replace and tighten the screws again (Figure 14-b).
a) b)
Figure 14 - Assembly of the bottom front cover
5.2. Installation requirements
The minimum distance between the free standing pellet fire unit and particularly
flammable surfaces is specified in Figure 15. The top of the unit must be at least
100cm separated from the ceiling, especially in rooms with ceilings consisting of
flammable materials. The base supporting the unit cannot be made of combustible
material (e.g. carpet), so make sure you use an adequate protection.
a) b)
Figure 15 - Minimum distances from all surfaces: a) upper view of the unit's installation; b) side view of the unit's
installation

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WARNING!
Keep combustible and flammable materials at a safe distance.
5.3. Installation of ducts and fume extraction systems
 The exhaust pipe must have been designed for this purpose, in compliance to the
location requirements and in accordance with any applicable regulations.
 Important! An inspection-T with an airtight lid must be attached to the
exhaust pipe of the unit to allow the regular inspection of the system or discharge of
heavy dust and condensates.
 As indicated in Figure 15, the exhaust pipe must be assembled so as to allow
cleaning and maintenance of the pipe by inserting inspection points.
 Under normal operating conditions, the combustion gas flow should create a
draught of 12 Pa one meter above the chimney neck.
• The unit must not share the chimney with other equipment.
• Pipes outside the operating area must have double stainless steel insulation and an
internal diameter of 80 mm (Douro 12 kW) or 100 mm (Douro 17 kW and Douro 23
kW).
• The fume exhaust pipe may generate condensation, so we recommend that
the appropriate systems for collecting condensates should be installed.
5.4. Installation without a chimney
The installation of the free standing pellet fire without a chimney should be performed
as illustrated in Figure 1 , equipped with an exhaust pipe (with a minimum diameter of
80 mm for the Douro 12 kW and 100 mm for the Douro 17 kW and Douro 23 kW
model) directly outside and over the roof.
Double-walled stainless steel insulated pipes must be used and properly fastened to
avoid condensation.
A T-tube must be installed at the base of the pipe to allow periodic inspections and
annual maintenance, as illustrated in Figure 1 .
Figure 17 specifies the basic requirements for installing the chimney to the unit.

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Figure 16 - Side view of the installation without a chimney, illustrating the inspection point
a)