Aito 16 / 20 / 24 / 16 VS / 20 VS / 24 VS
Contents
1. SUL ar m Tn ri Figure 4 Figure 5 Figure 4 Open the door and raise the hinge pin up 1 so it comes out of the bottom hinge barrel Hold onto the door securely and turn the bottom part of the pin and turn the bottom end of the pin up enough 2 that you can pull the pin down 3 and the pin and door come apart Figure 5 On the side of the door with the handle undo the fastening screw of the handle so that the handle comes loose Turn the handle around and reattach the locking screw Figure 7 Figure 6 On the inside edge of the door opening undo the limiter screw on the hinge side 1 Release the locking pin 2 on the outer edge of the firebox door on the handle side 2 with the help of an 8 mm open end wrench Remember the correct seguence of the parts Attach the locking pin to the opposite side of the door opening and tighten it with the open end wrench Do not tighten the screw so much that the bushing of the locking pin locks Attach the limiter screw to the opposite inner side of the door opening Figure 7 Position the door so that the hinge holes coincide with the hinge pins Position the hinge pin so that the lock ing tab comes down and push the hinge pin through the upper hinge hole 1 Push the hinge pin through the hinge holes in the bottom edge 2 and let it down into place 3 on top of the locking tab Carefully open the door If the door hits the water tank when it opens tighten2. areas of firewood Structure Safety clearance Top surface 1270 mm Front surface 500 mm Side surface 300 mm Back surface 200 mm We recommend leaving 1000 mm maintenance area in front of the sauna heater The safety clearance with the sides and the back can be re duced by 50 when a single protective screen is used and by 25 when a double protective screen is used Yet the gap between the sauna heater and the protective screen must always be at least 50 mm The safety clearance be tween the sauna heater and the ceiling can be reduced by a maximum of 300 mm when a single protective screen is used It is not permitted to use a double protective screen in the ceiling A single light protective screen can be made of a non combustible fibre reinforced cement plate that is at least 7 mm thick or a metal plate that is at least 1 mm thick which is attached to the wall sufficiently tight An air gap of at least 30 mm must be left between the surface to be protected and the screen A double protective screen can be made of the two abovementioned boards Ain air gap of at least 30 mm must be left between the screens and the wall There must be a gap between the protective screeds and the floor and ceiling so that air can circulate and cool the gaps between the screens 120 mm masonry structure in the distance of 30 mm from the surface to be protected corresponds to a double protective screed We recommend using of factory made dou
3. be very hot One firebox of firewood burns approximately half an hour Good time for adding firewood is when there are still some blue flames on coal in the firebox Before adding firewood you may even slightly coal on the grate If firewood is added in the flames too early the temperature of fume gases increases Do not use the door to push firewood in the firebox In case sauna is used or the sauna heater is heated also after recommended number of times firewood should be added as stated in the table firewood should not be added according to the quantities mentioned in the table A proper quantity for keeping heat is 1 2 logs approximately 1 kg of firewood every half an hour The ash drawer may be closed a bit If you add a big quantity of firewood the temperature of flue gases rises and this can damage the smoke flue and cause fire haz ard But do not heat continuously over 3 hours Thereafter the sauna heater must be let cool down before the next heating In case sauna will not be used any longer and coal is still glowing without flame extinguishing can be speeded up by increasing the draft For this open the ash drawer by 10 20 mm There is enough heat accommodated in the stones of the sauna heater to dry the sauna room In ignition phase the closing pan must be fully open Before you Close the closing pan after heating check that there is no glowing coal in the firebox Otherwise fumes may be released in the sauna Carbon monox
4. of the furnace 10 10 10 mm NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 2 Before you install the sauna heater Before installing and using the sauna heater make sure you are thoroughly familiar with the requirements for installing the sauna heater in the steam room In case of questions and for additional information do not hesitate to contact the Rescue Board or a construction supervision authority When installing fireboxes all local laws have to be followed including these referring to local and European standards 2 1 Steam room If the walls of a steam room are made of uncovered glass brick or concrete add 0 8 1 5 m per square meter of such wall and the final choice of the heater shall be made based on the sum of the area If the heater is installed in a sauna that is normally not heated or the sauna is made of mas sive logs multiply the sauna area with 1 5 and choose the heater based on this The recommended area of a steam room is indicated in clause 1 1 Please follow the values for the minimum area stipulated for the steam room We recommend choosing a sauna heater with a slightly bigger power to ensure proper heating of the sauna and to avoid heating the sauna heater to its upper limit A slightly bigger power ensures longer lifetime of the sauna heater and provides better steam thanks to bigger quantity of stones 2 2 Substrate A firebox must b
5. the limiter screw You can adjust the opening angle of the door with the limiter screw Make sure that the locking pin of the han dle is working properly and if necessary adjust it with an open ended wrench 3 5 Installation of the faucet models with a water tank 16VS 20VS 24VS The water tank is in front of the sauna heater and it has a large opening for filling it For the water volume see clause 1 1 The faucet is installed when the sauna heater is installed either on the left or right side of the sauna heater Figure 8 Figure 8 Place the faucet on the desired side so that the threads are visible on the inside of the tank Place the washer on the outside of the tank turn the locking nut into place with the smooth side against the washer and tighten turning the faucet clockwise and holding the keeper in place with a wrench 3 6 Sauna heater stones We recommend that you use Kota olive dolerite stones Natural stones are not suitable to be used as sauna heater stones 10 15 cm Before using the stones they must be washed to eliminate any impurities Bigger stones are placed in the bottom of the stone compartment and the rest are piled sparsely so that air can move freely between the stones Flat stones shall be stacked in upright position The stones must not block air openings and stones must not be stacked over the top surface of the sauna heater The recommended guantity of stones in the sauna heater is shown in c
6. 20VS a 24VS 1 guantity The cleaved log that is about 5 cm in diameter and about 33 cm long weighs about 0 5 kg 1 addition 2 addition max kg h NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en HON KON KA KJ OI temperature of 90 C was achieved in the sauna During first times we recommend using less firewood for achieving the desired temperature than the values presented in the table Maximum quantity of firewood per hour max kg h indicated in the table must not be exceeded Do not stack firewood in the firebox over 2 3 of its height Quantities of firewood are shown in clause 4 1 In the ignition phase the ash drawer can be kept open by 10 mm more than indicated in the table After igniting put the ash drawer back in the position as shown in the table In a sauna heater equipped with a water tank or in a sauna heater that is heated from another room firewood should not be burnt in the front part of the firebox in the extension but the firewood must be placed entirely on the grate of the firebox Do not forget that the sauna heater and its part become very hot during heating When you need to touch the parts of the sauna heater always use protective gloves When moving around in the sauna be careful because the floor and the ceiling of the sauna may be slippery Be careful water in the water tank of the sauna heater may
7. arvi Oy Narvi Oy 12 12 EN 15821 2010 Multi firing sauna stoves fired by natural wood logs for space heating in residential buildings Aito 16 Fire safety initiation risk to adjacent elements EN 15821 2010 Multi firing sauna stoves fired by natural wood logs for space heating in residential buildings Aito 24 Fire safety initiation risk to adjacent elements including declared safety Back distances to combustible Side materials Ceiling 200 mm 300 mm 1 200 mm including declared safety Back distances to combustible Side materials Ceiling 200 mm 300 mm 1270mm Emission of combustible products Pass Emission of combustible products Pass Surface temperature Release of dangerous substances Cleanability Pass Surface temperature Pass Release of dangerous substances Cleanability NPD Flue gas temperature Flue gas temperature Mechanical resistance Mechanical resistance Thermal output and Energy efficiency as Thermal output and Energy efficiency as carbon monoxide emission at 13 O Pass 0 40 carbon monoxide emission at 13 O Pass 0 8 total efficiency Pass 69 total efficiency Pass 68 flue draught 12 Pa flue draught 12 Pa thermal output i e nominal space heating output refuelling loads 20 kW thermal output i e nominal space heating output 22
8. ble Kota protective screeds Protecting a floor made of combustible material sauna bench or from under the door of the washing room sufficient gap Extraction fans working in the same room as the firebox may cause problems Inlets of incoming air should be lo cated so that they do not get blocked for instance because of snow A firebox needs combustion air in a volume of 6 10 m per kilo of fired wood The diameter of the ventila tion opening must be at least 100 mm Forced air system should be built according to the design prepared by the designer of the heating water and ventilation systems There shall be a possibility to ventilate sauna rooms after using the sauna and to dry the rooms so that air will exit via the upper part of the steam room Figure 3 If the sauna heater is installed on a floor made of combustible materials an installation base must be used A piece of sheet metal must be installed in front of the in stallation base which extends at least 100 mm over the sides of the heater door and at least 400 mm in front of the sauna heater The sheet metal edges facing the sauna heater must be turned up so that coal cannot get under the installation base Please observe that the safety clearance of an uninsu lated smoke flue from structures made of combustible materials is 1000 mm or any other distance stipulated in the manufacturer s instructions 2 3 2 Non combustible structure If the wall is masonry or o
9. e installed on the floor with sufficient load bearing capacity The durability of the floor must be checked especially carefully when the sauna heater is in stalled on a wooden floor The weight of the sauna heater is shown in clause 1 1 CONCRETE FLOOR The sauna heater may be installed directly on a concrete floor which is at least 50 mm thick If underfloor heating cables or pipes are located under the sauna heater Kota installation base must be used to protect them from the thermal radiation of the sauna heater FLOOR MADE OF COMBUSTIBLE MATERIAL OR A TILED FLOOR UNDERFLOOR HEATING A Kota installation base must be installed under the sauna heater which will protect the floor moisture barrier and un derfloor heating pipes or cables from the thermal radiation of the sauna heater 2 3 Safety clearances When installing the sauna heater safety clearances must be considered with Ignorance of safety clearances causes fire hazard If required additional information can be ob tained from the regional branch of the rescue board NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 2 3 1 Structure made of combustible materials The safety clearances are the minimum allowable dis tances between the sauna heater and structures made of combustible materials Please observe the stipulated re quirements regarding walls floors sauna benches other inventories and storage
10. he supplied cover The sauna heater comes with a short smoke flue connection pipe which can be used to connect the smoke flue of the sauna heater from the back If the connection with the smoke flue is done from the above Kota connective flue or Kota smoke flue must be used In case of connection from the above a Kota smoke flue tank for heating water or a Kota stone basket can be installed around the connective flue Do not push the connective flue too deep in the smoke flue because this would hinder the draft Any leaks in the connective flue also reduce the draft therefore the con nections must be sealed with fireproof sealing material Leakage in the connective flue cause combustion gas es formed in the sauna heater to ignite in the flue The connection joint of the flue and the sauna heater must be 25 mm The diameter of the connective flue of the sauna NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en heater and the height from the floor are shown in clause 1 1 Please consider with the clearance distance of the modular smoke flue see the manufacturer s instructions Item 1 Main connection of the smoke flue Item 2 Cleaning hatch Item 3 Stones to be installed under the smoke channel and central opening 3 4 Changing of the opening direction of the firebox door P a m m ei 7 ee T E E E 1 pme
11. ide is an odourless and colour less toxic gas If you have not used the sauna heater and smoke flue for a longer period or it is cold please check before use that the smoke flue is in proper order and that there are no corrosion damages on the sauna heater Start heating very slowly and with small quantity of firewood so that not to damage the smoke flue 4 3 Steam water Use normal domestic water for steam water Quality requirements for domestic water humus content lt 12 mg l iron content lt 0 2 mg l calcium content lt 100 mg l manganese content lt 0 05 mg l Do not use sea water or other salty water Also do not use water containing chlorine The warranty of the sauna heater does not cover damages caused by the use of unsuitable steam water Do not throw water on the stones if you yourself or somebody else is straight by the sauna heater Hot water steam may cause burns 4 4 Removing the ashes The ash drawer must be emptied every time before heating the sauna heater The ash drawer must be emptied immedi ately if ashes fill more than half of the drawer Otherwise the airflow through the firebox grate will be hindered which will shorten the life of the grate The ash drawer must be emptied in a non combustible con tainer for instance metal bucket after ash has cooled down Do not leave the ash bucket standing by the wall for instance on the terrace If the smoke flue is equipped with a closing pan it sh
12. ition you may use birch bark or paper Ignition aid should be placed between the upper firewood and it can be topped with some thinner wood sticks or firewood see drawing 9 Igniting from above reduces pollution and ensures cleaner burning Heating of the sauna The power of the sauna heater can be regulated with the ash drawer If the ash drawer is closed the power of the sauna heater is at its lowest and the burning time is longer If the sauna heater soughs too much reduce the draft To do this close the ash drawer half way or completely This way heat reaches better the sauna heater stones can store heat and you do not just heat up the flue A calm flame is a sign of a correct draft Avoid heating the sauna heater so that the channels of the stone basket glow red for a long time because this will overload the firebox and the service life of the sauna heater will be reduced Overheating may also cause excessive heating of the smoke flue and cause fire hazard The connective flue pipe must not be glowing red Figure 9 Figure 9 Proper stacking of firewood The following table shows the recommended quantities of firewood for different types of sauna heaters and positions of the ash drawer The values shown in the table meet the values of the nominal power test pursuant to the standard EN15821 In the test the size of the sauna was determined based on the maximum area for the given sauna heater and Aito sauna heater 16 16VS 20
13. k of the war NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en ranty or other defects that appear later than two 2 years after the delivery of the goods to the client The supplier may decide to either repair the defective goods or replace the defective goods at its own direction The warranty does not cover possible transport unloading or installation costs or other similar costs A receipt from the company selling the product serves as proof of warranty The client must check the goods immediately after delivery The client must submit a written notice of claims to the sup plier within two 2 weeks of discovering the defect or the moment when the defect should have been discovered Use only accessories approved by the manufacturer with this product Failure to comply with the manual or fire safety regulations can result in a fire or damage to the sauna heat er More detailed information about the fire safety regula tions can be obtained from the regional branch of the rescue board for instance The product shall be carefully inspected Improper use of the product is for instance wrong adjustment of the draft too big quantity of firewood burnt in the firebox too long heating time wrong arrangement of stones too much or too tight and use of salty water for instance sea water The warranty does not cover damages caused by improper use of the sauna heater N
14. kW refuelling loads 11 5 kg Durability CE Narvi Oy 12 EN 15821 2010 Multi firing sauna stoves fired by natural wood logs for space heating in residential buildings Aito 20 Fire safety initiation risk to adjacent elements including declared safety Back distances to combustible Side materials Ceiling 200 mm 300 mm 1270 mm Emission of combustible products Pass Surface temperature Release of dangerous substances Pass Cleanability Flue gas temperature Mechanical resistance Thermal output and Energy efficiency as carbon monoxide emission at 13 O Pass 0 6 total efficiency Pass 68 flue draught 12 Pa thermal output i e nominal space heating output 21 kW refuelling loads 9 3kg Durability Pass Durability Pass NARVI Oy reserves the right to any changes to technical details NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en
15. lause 1 1 The use of stones with a regular shape rectangular etc and light or ceramic stones is forbidden because of a risk of too tight stacking NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 4 Using the sauna heater 4 1 Firewood Both hardwood and softwood can be used to heat the sauna heater The use of chipboard fibreboard painted or impregnated wood waste or plastics is prohibited To ensure clean burning and the largest possible efficiency the wood must be dry The moisture content of the wood must be less than 20 Normally good firewood is sticks of wood the diameter of which is around 5 cm length around 33 cm and weight around 0 5 kg Use of liquid fuel is strongly forbidden also during ignition 4 2 Heating Before heating make sure that there is no combustible material within the safety clearances Also make sure that the ash drawer and fire grate are clean and if the sauna heater is provided with a water tank that it is filled with clean water Check if there is sufficient draft in the smoke flue If you hesitate regarding the draft check it by burning a small quantity of paper in the firebox first During heating the door of the firebox must be closed and the water tank must be filled with water The sauna heater must not be covered with anything To start heating pile firewood over a sufficiently wide area and ignite it from above For ign
16. let a chimney sweeper check the condition of the smoke flue and the sauna heater 6 Frequently Asked Questions The sauna heater is drafting poorly e The sauna heater has not been used in a long time the smoke flue and sauna heater are damp e The sauna heater is not receiving sufficient air there is a downdraft in the sauna caused by ventilation e The sauna heater has not been cleaned in a long time e The ash drawer is closed or full of ashes e Leakage in the connective flue The sauna does not heat up properly e The firewood is damp e The sauna heater has insufficient power e The sauna heater or smoke flue is drafting poorly e The stones of the sauna heater are dirty or crumbling or stacked too tight e There are too many stones or there are too many small stones The sauna heater smells e The sauna heater has not been properly heated the first time it was done e The stones of the sauna heater were not washed before loading e Fats or other dirt has accumulated on the stones e Steam water is not clean 7 Warranty Pursuant to consumer protection legislation Aito sauna heaters warranty period is two years The warranty covers normal family use provided use installation and maintenance meet the reguirements stipulated in the instructions The warranty period starts form the moment that the goods are delivered to the end user The supplier is not liable in any way for the defects within the framewor
17. most of your sauna heater please read the manual carefully before you start installing and using it and keep the manual for future reference This user manual contains technical data of your sauna heater and installation use and maintenance instructions The product is only meant to be used as a sauna heater and for heating the sauna Do not modify the design of the sauna heater and use only spare parts and accessories recommended by the manufacturer The data plate includ ed in the delivery of the sauna heater must be glued on the sauna heater preferably on the lower part of the cover of the sauna heater Do not heat the sauna heater if you lack sufficient knowl edge if you are not allowed to use sauna because of your health condition or you are under the influence of sub stances causing intoxication Sauna heaters must not be used by underage people Do not leave children in the sauna without supervision A sauna is not meant for drying Aito sauna heater 16 16 VS 20 20 VS 24 24 VS Height mm 760 760 760 760 760 760 Width mm 400 400 480 480 550 550 Adjustment range mm 15 15 Diameter of the connective flue mm 119 119 119 119 119 119 Susa of the bottom edge of the 555 555 555 555 555 555 connective flue from the floor mm Central point of the connection from the above from the rear edge of the 115 115 115 115 115 115 sauna heater mm Size of the steam room m coc 10 20 12 24 12 24 Thickness of the cover
18. nd stickers must have been removed before Preheating shall be carried out on a non combustible surface and outside since paint emits harmful solvent vapours and smoke during the heating Use of a connec tion pipe included in the delivery of the sauna heater in the upper joint see item 1 of the attached drawing improves draft during preheating 1 2 fireboxes of wood are suffi cient for preheating After preheating and before arranging the stones loose cover material should be removed from the stone compartment of the sauna heater with a steel brush In case the external surface of the sauna heater is painted it should not be rubbed or wiped before the first heating The paint of the sauna heater will achieve suf ficient strength only after the first heating Do not create steam during the first heating NB If the sauna heater is equipped with a water tank please check before preheating that the water tank faucet and safety plug are installed and that the tank is filled with clean water 3 2 Regulation of the height The legs of the sauna heater are adjustable and can be used for levelling the sauna heater and for adjusting the height There must be an air gap of at least 25 mm between the sauna heater and the floor Use a spirit level to check if the sauna heater is level 3 3 Connection with the smoke flue The sauna heater can be connected to the smoke flue from the back or top of the sauna heater Seal the unused open ing with t
19. ould be opened for the time ash is removed Dust will escape with the draft 4 5 Maintenance of the sauna heater Besides removing the ashes and having the chimney annually cleaned by a chimney sweep the sauna heater requires no other maintenance To open the cleaning hatch of the sauna heater the upper stones have to be removed from the sauna heater The stones of the sauna heater have to be re arranged once per year and replaced every other year Cracking stones col lapse and fall lower some stones will erode Remove eroded and broken stones Due to insufficient maintenance the sauna heater needs more time for heating which in its turn causes load on the structure of the sauna heater The enamel surface of the sauna heater should be cleaned regularly with a damp cloth Also the water tank of the sauna heater should be regularly cleaned Use only clean water to fill the tank If there is a dan ger that water can freeze the water tank should be emptied 4 6 Disposal For disposal take the sauna heater to the public waste recycling centre NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 5 Soot fire IN CASE OF SOOT FIRE ALSO IF IT HAS ALREADY BEEN EXTINGUISHED ALWAYS INFORM THE EMERGENCY CENTRE If you detect soot fire in the smoke flue close immediately the ash drawer and the door of the firebox After sooth fire and before the next use of the sauna
20. ther structure classified as non combustible it is sufficient to have a 50 mm air gap be tween the upright surfaces and the wall 2 4 Smoke flue A smoke flue of the sauna heater must meet the require ments of class T600 irrelevant of the material of the smoke flue The minimum recommended draft of the smoke flue is 12 Pa A modular smoke flue must meet the requirements of class T600 and provided with CE marking When installing a modular smoke flue safety clearances stipulated in the in stallation manual of the smoke flue shall be followed The minimum recommended diameter of a modular smoke flue is 120 mm The weight of the smoke flue must not cause load on the sauna heater The sauna heater should be con nected to a separate smoke flue A smoke flue made of bricks must be at least the so called half brick smoke flue 2 5 Ventilation Ventilation of the steam room should be sufficiently ef ficient and should function so that fresh incoming air is routed as close to the sauna heater as possible Also proper air circulation has to be provided in the steam room during using the sauna so that air can exit from under the EN 6 NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 3 Installation and preheating of the sauna heater 3 1 Preheating Before use and arranging the stones the sauna heater must be heated to remove the protective agents Any pro tective films a
21. version 1 2 NN a o za a S m gt Y amp MADE AN Made by NARVI Oy Finland Aito 16 20 24 16 VS 20 VS 24 VS Installation user and maintenance instructions EN 2 NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en Content 1 1 Technical data mmm een 4 2 Before you install the sauna heater 5 2 1 Steam FOOM mme 5 2 2 SUDSUATG eee 5 2 3 Safety Clearances mmmmmmmmen 5 2 4 SMOKE FIUO teemaa ae 6 2 5 VentilatiOn mee 6 3 Installation and preheating of the sauna heater e 7 3 1 Preheatino mmm met eee T 3 2 Regulation of the height 7 3 3 Connection with the smoke flue 7 3 4 Changing of the opening direction of the firebox AOOr smmm meemi T 3 5 Installation of the faucet models with a water tank 16 VS 20 VS 24 VS 8 3 6 Sauna heater Stones 8 4 Using the sauna heater ce 9 4 1 FIFO WOO mammaa 9 4 2 PIS AMO istumista Samaa L L nama 9 4 3 Steam Waterman 10 4 4 REMOVING the Ashes 10 4 5 Maintenance of the sauna heater 10 4 6 DISPOSAL mm menee 10 5 Soot FIFA mese eee 11 6 Frequently Asked Ouestions 11 7 Warranty meam 11 NARVI Oy Yritt j ntie 14 FI 27230 Lappi tel 358 0207 416 740 fax 358 0207 416 743 www narvi fi en 3 EN Aito 16 20 24 16 VS 20 VS 24 VS Introduction Thank you for having chosen our continuous burning Aito sauna heater To make the
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