Unical AIREX 2S Series Installation And Servicing Manual Download Page 1 | Manualshive

Page: 1 / 38

background image

AIREX 2S

INSTALLATION AND
SERVICING MANUAL

00333938 - 1

st

edition - 05/17

1
2
3
...
»

Summary of Contents for AIREX 2S Series

Page 1: ...AIREX 2S INSTALLATION AND SERVICING MANUAL 00333938 1st edition 05 17 ...

Page 2: ... of Practice 12 3 3 Packaging 13 3 4 Transportation 13 3 5 Installation 14 3 6 Boiler system connection 14 3 7 Connection to safety heat excanger drain 15 3 8 Recirculation pump 15 3 9 Assembly instruction 16 3 10 Flue outlet connection 20 3 11 Electrical connections 21 3 12 Standard panel board 22 3 13 Hydraulic and electrical connection diagrams 24 3 14 Filling the system 26 4 BOILER START UP 27...

Page 3: ...s of the water 1 4 INFORMATION TO BE HANDED OVER TO THE USER The user has to instructed on the use and operation of his heating system in particular Hand over these instructions to the end user of the appliance together with any other literature regarding this ap pliance placed inside the envelope contained in the packaging The user has to keep these documents in a safe place in order to always ha...

Page 4: ...ler on your own initiative Servicing or repairs of the appliance must be carried out by qualified service engineers UNICAL recommends drawing up a service contract Bad or irregular servicing could compromise the safe operation of the appliance and could cause injury to persons animals or damage to property for which UNICAL shall not be held liable Modifications to parts connected to the appliance ...

Page 5: ...or transferred to another owner or if the present user moves home and leaves the appliance installed ensure yourself that the manual always follows the appliance so that it can be consulted by the new owner and or installer Only original accessories must be used for all appliances sup plied with optional accessories or kits including electrical ones This appliance must be used only for the purpose...

Page 6: ...It comes in the following models AIREX 25 2S AIREX 40 2S AIREX 50 2S AIREX 65 2S AIREX 80 2S The boiler AIREX is complete with all the safety and control devices required by the relevant standards COMPONENTS DESCRIPTION Steel boiler with combustion chamber partially covered with refractory Burner in refractory material Horizontal smoke channels Front door for wood loading insulated with refractory...

Page 7: ... kg 3 95 290x340 396 3 135 350x440 485 3 185 350x440 603 cm 50 50 70 Rp 2 220 R Rp 170 0 06 0 3 3 235 340x520 760 70 Rp 2 220 R Rp 220 0 10 0 5 3 325 340x520 927 100 UNI ISO 7 1 H 315 315 315 mm 315 315 MODELS MNOMINAL OUTPUT DIMENSIONS CONNECTIONS T1 T2 BOILER WATER CONTENT WATER SIDE PRESSURE DROP SMOKE SIDE PRESSURE DROP MAX WORKING PRESSURE FIRE BOX STORAGE VOLUME FIRE BOX DIMENSIONS WEIGHT WO...

Page 8: ... be held with its head upwards This is because it is necessary that the flame in its convective motion does not meet another fuel in addition to the one which has generated it As in residential heating the fuel is in form of wood logs which are loaded from the top the flame has to go in the opposite way i e downwards Natural draught is a very variable source of depression accor ding to the type of...

Page 9: ... delivered output is regulated via the adjustment system EXCHANGE SURFACE 6 As the boiler operates on wood and because the sulphur con centrations are not very high it is important to obtain very low smoke temperatures in order to increase the water efficiency To obtain this Unical has opted for an exchange surface with dry smoke passes fig 4 which have already been extensively tested in oil fired...

Page 10: ...mbers The flames after having bounced off the walls of the bottom area and the refractory ones direct themselves with a whirling motion towards the front part of the combustion chamber and enter the flue ducts The combustion will be complete and clean and the dominant colour will be that of the ashes white THERMOSTATIC VALVE 9 As well known wood normally has a high moisture content when compared w...

Page 11: ...arried out by a professionally qualified person a The whole system should be thoroughly flushed in order to remove any residual dirt or grime which could compromise correct boiler operation b Check that the chimney flue pipe has an ade quate draught does not have any constrictions and that no other appliance s flue outlets have been fitted unless the chimney is serving more than one heating applia...

Page 12: ...ions for the installer 3 2 INSTALLATION CODES OF PRACTICE The AIREX 2S is a boiler foreseen for operation with firewood The appliance must be installed in compliance with all local applicable laws and regulations ...

Page 13: ...ns Packages description 1 Boiler body 2 Package containing the casing and boiler insulation 3 Package containing the panel board 4 Package containing the smoke extraction fan 5 Package containing air inlet manifold smoke chamber cleaning doors handles flame control mirror screws and nuts cleaning accessories This package is shipped inside the fire wood storage room In the documents placed in the f...

Page 14: ...as to reduce possible vibrations and noise An adequate clearing must be left behind the boiler for servicing INSTALLATION IN BOILER ROOM Note The minimum clearances indicated in figure 9 are compulsory only for boilers with an output higher than 35 kW Italian re quirement 3 6 BOILER SYSTEM CONNECTION Warning Make sure the connection of the pipelines is free of mechanical stresses in order to avoid...

Page 15: ...visible Warning In absence of this precautionary measure the eventual intervention of the heat dischar ge valve could cause damages to people animals or property The manufacturer shall not be held liable for any such injury and or damage MAINS DRAIN 3 8 RECIRCULATION PUMP For correct boiler operation it is necessary to install a re circulation pump in the boiler The recirculation pump supplied as ...

Page 16: ...irror pos 5 on the flame sight glass of the lower door fig 11 fig 12 fig 13 IMPORTANT When installing the fan it is necessary to check the tightness of the seal on the smoke chamber otherwise it would cause the deformation of the wall resulting in severe damage to the impeller and or fan motor This inconvenience is much more rapid as more frequent is the opening of the wood loading door 1 2 3 4 Fi...

Page 17: ...er body pos 2 Place on the ground the casing upper panel and fit on it the panel board pos 3 4 5 e 6 Fix to the top panel the rear profile pos 7 supporting the cable clamps Open the panel board by acting with a screwdriver on the two side screws Rotate forward the panel board cover Insert all the capillaries of the thermostats and thermome ter unroll them carefully the outgoing fan s connecting ca...

Page 18: ...ard Pay attention that the cables do not come in contact with the smoke chamber During operation this reaches high temperatures TERMOSTATO DI ESERCIZIO Te TERMOMETRO MOLLA DI CONTATTO TERMOSTATO DI MINIMA Tsc MOLLA DI FISSAGGIO TERMOSTATO DI MASSIMA Tmax TERMOSTATO DI SICUREZZA Ts MOLLA DI FISSAGGIO 3 2 1 The solid fuel boilers must be installed with all the securi ty devices foreseen by the laws ...

Page 19: ...n a recirculation pump to prevent a low temperature return which could compromise the life of the boiler UNICAL to help its customers has therefore developed a hydraulic kit for recirculation that enhances the function of the circulating water in the boiler This kit is supplied as an option and is available by indicating the model of your boiler fig 18 ...

Page 20: ...ted blocks must have perfectly sealed joints to avoid that flue condensate smudge the walls due to permeation The entrance to the chimney should be with an angle of 45 At the base of the chimney a flue inspection opening has to be made It is advisable to insulate the flue pipe connecting the boiler to the chimney in order to reduce the heat losses and noise 1 Boiler 2 Flue outlet connection 3 Ashe...

Page 21: ...nd or barefooted Do not pull the supply cables Do not permit children or inexpert people to use the appliance Connection to mains electrical supply 230V The general wiring diagrams are shown on page 23 and the actual wiring diagrams on pages 24 25 A mains supply of 230 V 50 Hz is required The wiring to the boiler must be in accordance with the current IEC regulations DANGER The electrical connecti...

Page 22: ... the temporized relay stops the fan This can be due to the boiler not firing or due to an insufficient load of the firewood To avoid this inconvenience it is possible to increase the temporized relay s intervention time this operation has to be done only by trained personnel or more firewood has to be loaded If the boiler fires in a regular manner when the boiler reaches 65 C the C H pump is activ...

Page 23: ... relay R1 Relay Te Working thermostat 75 C 85 C TKS Microswitch on by pass rod Tmax Maximum thermostat 90 C Ts Safety thermostat 100 C Tsc Minimum thermostat for wood fired boiler 65 C V Fan s 34 reference to front view facia panel fig 41 fig 42 31 42 11 41 12 13 32 14 15 16 17 35 33 34 18 19 20 21 22 23 IG 11 17 Ts 6 12 18 16 Pr Pi 10 5 Iv LL 100 C 30 min 65 C 11 31 c c 2 1 12 Ipi 13 33 34 90 C T...

Page 24: ...anel board operates automatically the shut off of the fan and the recirculation pump if the boiler temperature after 30 minutes from the closing of the loading door for the boiler ignition purposes does not reache 65 C minimum temperature The panel board and the cycle can be reset only after ope ning the loading door for a new ignition or by the switching off and on of the main switch pos 11 The s...

Page 25: ...s 11 The same logic of the panel board will stop the fan and the recirculation pump at the end of the loaded wood The pump system will operate only after passing the minimum temperature in the boiler of 65 C If the temperature decreases below the threshold of 65 C the pump system will be shut down TheD H W storage tank loading pump will work with priority on the C H pump Water production for heati...

Page 26: ...y via the same expansion vessel close the system s filling cock and then bleed off the air once again through the radiator s air vents check all the connections for soundness after having fired the boiler for the first time and the system has reached the correct temperature stop the pump and repeat the air bleeding operations let the system cool down and if necessary re establish the water pressur...

Page 27: ...nces are guaranteed for subsequent servicing LIGHTING AND SHUTTING DOWN PROCEDURES For lighting and shutting down the boiler refer to the USER INSTRUCTIONS MANUAL Information to be passed on to the user The user must be instructed on the use and operation of the boiler and the heating system in particular Hand the user the USERS INSTRUCTION MANUAL as well as all the other literature relative to th...

Page 28: ...o reduce its autonomy Moreover they fall with greater facility in the lower chamber reducing the risk of the formation of bridges The so called bridge is an empty space in the fire wood storage room where unburnt wood logs remain In this case the bed of embers is not fed with continuity and the refractory burner s slot is uncovered In these conditions preferential air passages are created with a v...

Page 29: ...per or similar Approach the top door and turn on the fan Wait a few minutes that the fire takes and produce the embers 5 10 minutes After few minutes if looking through the flame sight glass of lower door you will see that the flame inversion is beginning add now more bigger wood logs Close the wood loading door Important during the normal operation of the boiler the by pass must be always perfect...

Page 30: ...r air adjustment see fig 28 At first start you need to adjust the primary and secondary air bearing in mind that the primary air determines the power of the boiler and therefore the amount of wood that is burned and the secondary air completes the combustion For a proper air adjustment it is necessary to observe the flame through the flame sight glass placed on the lower door The flame will have t...

Page 31: ...is any noticeable smoke leaks alert the installer and or the authorized After Sale Service If there is any noticeable aspira tion of air through the door seals tighten the handle with greater force Check the proper operation of the thermostat Te 32 at full capacity chapter 3 12 up to stop the fan Check for leaks from pipe connections After the initial start with the boiler off open the lower door ...

Page 32: ... working thermostat pos 32 on the control panel If this problem is repeated inform the local After Sales Service After every air adjustment wait 5 to 10 minutes before making a new adjustment Once the best adjustment has been established at the end of the day check that the surfaces of the combustion chamber and the door insulation are of a white colour In the ash deposited in the cradle there mus...

Page 33: ...r does not stop for long periods see paragraph 6 9 Use thicker wood logs Consume all the wood before loading a new batch Problem The boiler does not reach the requested temperature The flame is small and there is too much air When the fire wood storage room is checked a formation of log bridges is found Remedy Check the length of the wood logs see paragraph 6 6 Check how the wood logs are loaded i...

Page 34: ...fer to the table on page 37 where the recommended servicing and maintenance operations are indicated INSTRUCTIONS FOR INSPECTION AND SERVICING To ensure a long life to all your boiler com ponents and in order not to alter the condi tions of the approved product only original UNICAL spare parts must be used Before servicing always carry out the following steps Disconnect the mains electricity suppl...

Page 35: ...boiler or its parts with easily inflammable pro ducts gasoline alcohol etc Do not leave inflammable products in the room where the boiler is installed At the end of the heating season the boiler must always be checked in order to maintain the heating system in a good working condition IMPORTANT For cleaning the boiler use brushes and a va cuum cleaner If pieces of cloths are used make sure they ar...

Page 36: ...rmation of condensate or tar tears clean very carefully in order not to bend or deform the blades This could make the fan noisy during operation and could reduce the fan s performances Cleaning the primary and secondary air distributor Remove the central front wall fig 30 where the air adjustments are placed and clean the inner space carefully from tarry resi dues dust and wood flakes which have e...

Page 37: ...doors seals Correct operation of the loading door microswitch Cleaning the fan blades Fan noise Cleaning the smoke circuit on the rear side of boiler If necessary replace them If necessary replace it If necessary replace it If necessary clean them If necessary adjust it If necessary repair it using the refractory kit see spare parts list If necessary re position it If necessary repair and or repla...

Page 38: ...ption errors or press Also reserves the right to bring to its own products those changes that it will consider necessary or useful without jeopardizing its essential features AG S P A 46033 casteldario mantova italia tel 39 0376 57001 fax 390376 660556 www unical ag info unical ag com ...

Reviews:

No comments

Related manuals for AIREX 2S Series

Brand: A.O. Smith Pages: 56

Brand: Alde Pages: 8

economy plus c 50

Brand: Glow-worm Pages: 24

Super Xpress SX iQ Series

Brand: OSO HOTWATER Pages: 28

Brand: THERMO 2000 Pages: 59

Brand: eta Pages: 64

Brand: eta Pages: 68

Brand: eta Pages: 84

Brand: Sime Pages: 104

Brand: Sime Pages: 104

Brand: AFRISO Pages: 2

Brand: Climit Pages: 66

Knockdown K-350

Brand: Bryan Boilers Pages: 4

Brand: Ideal Boilers Pages: 32

Brand: Gledhill Response Pages: 44

Elektra 18 kW N 016 TROLLEY

Brand: Fiamma Pages: 32

Brand: Riello Pages: 72

Brand: Unical Pages: 16

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands