Unical ALKON 35S C Installation And Servicing Manual Download

Page: 1 / 44

00333169 -1

edition - 06/2009

INSTALLATION
AND
SERVICING MANUAL

English

ALKON

35S R - 35S C

(Adjusted for 28 kW)

35S R - 35S C

ALKON

Summary of Contents for ALKON 35S C

Page 1: ...00333169 1st edition 06 2009 INSTALLATION AND SERVICING MANUAL English ALKON 35S R 35S C Adjusted for 28 kW 35S R 35S C ALKON ...

Page 2: ...HE INSTALLER 11 3 1 General warnings 11 3 2 Standard codes for installation 12 3 3 Packaging 12 3 4 Boiler location 13 3 5 Boiler installation 14 3 6 Gas connection 14 3 7 Central heating connections 15 3 8 DHW connections 16 3 9 Examples of system pipework connections 17 3 10 Condensate drain 18 3 11 Water treatment 19 3 12 Flue outlet installation 20 3 13 Electrical connections 26 General warnin...

Page 3: ...ear as possible to the one you really require We recommend you to check the state of cleanliness of the domestic hot water heat exchanger at the end of the first year and subsequently on the basis of the lime scale found this period can be extended to two years The user has to be instructed on the use and operation of his heating system in particular Hand over these instructions to the end user to...

Page 4: ...structive components which influence the appliance s safe operation WARNING When tightening or loosening the screw pipe connections use only adequate fork spanners The improper use and or the use of inadequate equipment can cause damages for example water or gas leakages WARNING Indications for appliances operating with propane gas Ensure yourself that before installing the appliance the gas tank ...

Page 5: ...EN 13203 1 18 F factor N stars based on the quality of water declared EN 13203 1 19 PMW Max pressure D H W system 20 T max Max temperature D H W system C Electrical features 21 Electrical power supply 22 Consumption 23 Protection grade D Countries of destination 24 Direct and indirect country of destination 25 Gas family 26 Supply pressure E Factory setting 27 Adjusted for gas type X 28 Space for ...

Page 6: ...cing turn off the electrical supply to the boiler by means of the ON OFF switch and or by means of the appropriate shutdown devices Do not obstruct the inlet outlet terminals In the event of failure and or faulty functioning of the appliance switch off the boiler Do not attempt to make any repairs contact qualified technicians Any repairs must be carried out solely by Unical authorized technicians...

Page 7: ... CEE appendix 2 4 stars and appendix 6 D M 660 2 TECHNICAL FEATURES AND DIMENSIONS 2 2 DIMENSIONS DESCRIPTION OF COMPONENTSAND FEATURES Aluminium heat exchanger condenser Electronic ignition Flame modulation in function of the absorbed power Minimum heat output adjustment in CH mode Electronic adjustment of the ignition ramp Electronic frost protection mode Pump overrun function Safety high limit ...

Page 8: ...tch 20 Central heating circuit safety valve 21 System drain cock 22 Filling system cock M C H system flow C DHW outlet G Gas inlet F Cold water inlet R C H system return M C G F R 9 17 1 4 8 2 6 19 12 13 14 15 16 18 22 21 5 11 10 7 20 1 By pass 2 Gas valve 3 Central heating circuit safety valve 4 Aluminium heat exchanger condenser 5 Low water pressure switch 6 Sealed chamber 7 Fan 8 Safety thermos...

Page 9: ... 17 Pump 18 Filling system cock M C H system flow G Gas inlet R C H system return 1 By Pass 2 DHW temperature sensor 3 Gas valve 4 Flow temperature sensor 5 Condensate drain siphon 6 Return temperature sensor 7 Safety thermostat 8 Aluminium heat exchanger condenser 9 Burner 10 Air vent 11 Premix 12 Fan 13 Sealed chamber 14 Flue outlet combustion air inlet 15 Expansion vessel 16 Diverter valve moto...

Page 10: ...5S C II2H3P 2 12 0 5 3 2 5 80 30 7 1 144 2 0 5 6 16 9 14 10 8 12 1 13 8 16 1 19 4 35 57 230 50 3 15 130 X4D 39 35S R Adj 28 kW II2H3P 2 12 0 5 3 2 5 80 30 7 1 148 230 50 3 15 130 X4D 39 35S C Adj 28 kW II2H3P 2 12 0 5 3 2 5 80 30 7 1 148 2 0 5 6 12 5 14 8 7 9 8 11 2 13 15 6 35 57 230 50 3 15 130 X4D 39 35S R 35S C 34 5 5 5 33 3 5 2 96 54 96 8 5 35 1 5 89 101 69 107 17 97 56 98 55 1 02 2 44 49 1 15...

Page 11: ...e gas type available This is verifiable via the indication on the packaging and on the data badge c Check that the chimney flue pipe has an adequate 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 appliance according to the specific standards and regulations in force The connection between the b...

Page 12: ...mplying to all the local and or national regulations published in the official publications as well as all the applicable codes of practice The installation must be carried in accordance to the codes of practice the regulations and the requirements hereby indicated which constitute an indicative list but not a complete one as these continue to undergo developments National installation regulations...

Page 13: ...his template has to be fixed on to the wall chosen for the installation The upper part of the template marks the position where to drill the holes for fixing the boiler support bracket to the wall The lower part of the template marks the correct positioning of the system pipework connections for the following parts M CH system flow 3 4 C Hot water outlet 1 2 G Gas supply 3 4 F Cold water supply 1 ...

Page 14: ...tting the boiler Place the steel mounting template on to the wall Determine the position of the holes for fixing the support bracket Drill the holes and fix the support bracket using the fixing screws as indicated on page 13 Engage the boiler on to the support bracket Mark the positions of the gas cold water supply hot water outlet CH flow and return pressure relief valve and or condensate drain N...

Page 15: ...lves lockshield valves and by the system s layout The routing of the piping has to be laid down taking all the necessary precautions in order to avoid air locks and to facilitate the continuous purging of the system Ensure yourself that the system s piping is not used as earth clamps for the electrical or telephonic system They are absolutely unsuitable for this use In a short time this could caus...

Page 16: ... opportunity of fitting an adequate scale reducing device for domestic purposes for treating the mains water supply to the boiler in compliance to the DM n 443 dated 21 12 90 should be taken into consideration Where water hardness exceeds 15 f a scale reducing device is always recommended Ensure yourself that the system s water and central heating piping are not used as earth clamps for the electr...

Page 17: ...WITH STRAIGHT PIPES ON OFF VALVES 00361670 Straight pipework kit supplied with the boiler 00360682 On Off valves optional extra ALKON 35S C ALKON 35S R CONNECTION WITH STRAIGHT PIPES 00360724 Straight pipework kit supplied with the boiler CONNECTION WITH STRAIGHT PIPES BICONIC NIPPLES 00360724 Straight pipework kit supplied with the boiler 00361382 Telescopic pipes connection kit optional extra CO...

Page 18: ... supplied with the boiler there must be no bottlenecks the connection must be made just under the bottom part of the boiler it must be installed so as to avoid freezing of the liquid when the boiler is operating and prevent the eventual pressuriza tion of the sewage system consent the correct downflow of the appliance s liquid di scharges it must be made with one of the following materials which a...

Page 19: ...cope of this treatment is finalized for eliminating or substantially reducing the following problems lime scale deposit corrosion sludge deposits microbiological growths moulds bacteria etc An appropriate treatment of the supply water will prevent the above stated problems and will maintain the correct operation and efficiency of the generator in time For this purpose it will be necessary to fix t...

Page 20: ...ncentric or twin ducts The minimum distance between the air inlet duct and the flue gas outlet duct must be of 250 mm and moreover both terminals must be positioned within a 500 mm square area C43 Boiler designed for connection to collective flue systems including two ducts one for the air inlet and the other for the discharge of products of combustion through con centric or twin ducts C53 Boiler ...

Page 21: ...c pipes is of 0 75 metres The maximum allowable length of the horizontal concentric pipes is of 3 5 metres For each elbow added the maximum length permitted has to be reduced by 1 metre HORIZONTAL FLUE OUTLET WITH CONCENTRIC DUCTS Ø 60 100 mm Important the outlet inlet flue has to have a minimum inclination of 3 towards the top in the outlet direction so as to enable the collection of any condensa...

Page 22: ...on so as to enable the collection of any condensate formed in the boiler Type C33 The maximum allowable length of the vertical concentric pipes is of 8 5 metres including the terminal Ø 80 125 For each elbow added the maximum length permitted has to be reduced by 1 metre HORIZONTAL FLUE OUTLET WITH CONCENTRIC DUCTS Ø 80 125 mm Important the outlet inlet flue has to have a minimum inclination of 3 ...

Page 23: ...80 mm It is not permitted to position the two terminals on opposite walls The maximum pressure loss permitted independently from the type of installation must not exceed the value of 100 Pa 00361435 KIT5770C KIT5780C TSC0130C or TSC0150C 120 Ø 80 218 222 r D 205 r D 50 ...

Page 24: ...C TSC0130C TSC0150C KIT 5770C CALCULATION OF THE PRESSURE LOSSES OF THE COMBUSTION AIR INLET PRODUCTS OUTLET DUCTS When calculating the pressure losses bear in mind the following parameters For the twin flue pipe system s adaptor the pressure loss is of 4 Pa For narrow radius 90 bend Ø 80 R D the pressure loss is of 14 Pa For each large radius 90 bend Ø 80 R D the pressure loss is of 4 Pa For each...

Page 25: ...Pa in the combustion product outlet For the Ø 60 L 1 horizontal combustion air inlet terminal the pressure loss is of 6 Pa For the Ø 60 L 1 horizontal combustion products outlet terminal the pressure loss is of 10 Pa For the vertical flue outlet duct Ø 80 L 1 the pressure loss is of 8 Pa Note These values refer to flue systems made with original UNICAL non flexible and smooth pipes 00361435 003603...

Page 26: ...expert people to use the ap pliance Connection to mains supply 230V The boiler is provided complete with a 1 5 m long mains supply cable with a cross section area of 3x0 75 mm2 The boiler s electrical connections are shown in the section named WIRING DIAGRAMS paragraph 3 14 pages 30 and 31 A mains supply of 230 V 50 Hz is required The wiring to the boiler must be in accordance with the current CEI...

Page 27: ...be made via the knob positioned on the rear side of the panel turn the knob in an anti clockwise direction between a value from 10 to 19 Obviously this temperature is different from zone to zone and varies in function of the climatic conditions of the installation site it corresponds to the minimum design temperature The minimum flow temperature instead HL is automatically set by the boiler when t...

Page 28: ...Y1 Y2 1L 2N 1 2 3 4 5 6 7 A11 3 4 TA Modulating RT OT digital room controller connection optional Gain access to the terminal strip Y1 Connect the TA modulating cable to the terminals 4 5 of the terminal strip Y1 making them pass through an extractible grommet available on the control box Remove the jumper positioned between the terminals 3 4 on the terminal strip Y2 DANGER Switch off and disconne...

Page 29: ...e 3 way valve opens the high temperature zone and closes the low temperature zone controlled by the digital room controller Regolafacile With the thermostat s contact On Off open the 3 way valve deviates towards the low temperature zone the temperature value can be adjusted with the digital room controller M 3 L N TA 4 LT zone HT zone Flow Return External voltage line To the terminals 3 and 4 on t...

Page 30: ...G Gas valve VM Modulating fan Y1 Connector Outdoor sensor modulating room thermostat Y2 Connector Line voltage On Off room thermostat 230 V A4 A1 A3 A5 A2 A6 A8 Y2 X3 Y1 A11 A9 VM 1 2 3 4 5 6 BLACK GREEN BLUE ORANGE LIGHT BLUE BROWN WHITE YELLOW GREEN RED YELLOW GREEN LIGHT BLUE BROWN VG TRASF ACC LIGHT BLUE LIGHT BLUE BROWN BROWN TL FL SS SRR SR DK BROWN WHITE RED RED GREEN GREEN WHITE WHITE WHIT...

Page 31: ...door sensor modulating room thermostat Y2 Connector Line voltage On Off room thermostat 230 V A4 A1 A3 A5 A2 A6 A8 Y2 X3 Y1 A11 A9 VM 1 2 3 4 5 6 BLACK GREEN BLUE ORANGE LIGHT BLUE BROWN WHITE YELLOW GREEN RED YELLOW GREEN LIGHT BLUE BROWN VG LIGHT BLUE LIGHT BLUE BROWN BROWN TL SRR SR DK BROWN LIGHT BLUE GREEN GREEN WHITE WHITE WHITE BROWN LIGHT BLUE LIGHT BLUE P LIGHT BLUE BROWN BLACK YELLOW GRE...

Page 32: ...in access to the jumper Remove the front panel Undo the 4 screws A and remove the cover B If the jumper is positioned on NS 1 2 the high temperature zone is in permanent demand As the high temperature demand has priority on the low temperature demand the eventual action of the digital remote room controller is completely uninfluential The closure of the contact between 3 4 on theY2 provokes the ni...

Page 33: ...his value is lower use the filling cock on the boiler to adjust the pressure This operation must be carried out when the system is cold Use the pressure gauge fitted on the boiler to read the circuit s pressure value NOTE If the boiler has not been fired for a long period the pump could be jammed Before firing the boiler it is important to carry out the following un jamming operation place a cloth...

Page 34: ... up the siphon through the filling hole and check the correct drainage of the condensate If the appliance is used with the condensate drain siphon empty this could cause poisoning caused by the leakage of the flue gasses there are no water leaks all the necessary ventilation conditions and minimum clea rance distances are guaranteed for subsequent servicing in case the boiler is sited in a cupboar...

Page 35: ...the Reset G key for at least 3 seconds The boiler will operate in the CH mode at the maximum output led D blinking and led E ON B MIN OUTPUT ADJUSTMENT By pressing the Reset G key again the boiler will operate at the minimum output led D and led E blinking MAXIMUM OUTPUT ADJUSTMENT SCREWS Check that the C02 values are within the values indicated in the table Burner pressures If necessary correct t...

Page 36: ...ult ignition Screw down completely the maximum adjustment screw A in a clockwise direction than slacken for 7 turns Check the boiler ignition if the boiler goes into lockout slacken the screw A again of one turn than retry ignition If the boiler goes into lockout again carry out the above indicated operations until the boiler is fired At this point carry out the burner adjustment as previously ind...

Page 37: ...d With the Regolafacile parameter FHCH rpm x 100 ex 70 7000 rpm For example with the parameter FHCH settled on 54 the correspondent maximum input will be of 28 kW Output range Maximum imput Parameter FHCH rpm x 100 ALKON 35S R 35S C 0 2 4 6 8 01 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 ...

Page 38: ... must have regular maintenance and cleaning in order to ensure reliable and efficient operation Regular attention will prolong the life of the boiler The frequency of servicing will be determined by the service engineer and will depend on the appliance s state of condition 4 INSPECTION AND SERVICING SCHEDULE INSTRUCTIONS FOR INSPECTION AND SERVICING To ensure a long life to all your boiler compone...

Page 39: ...ck annually Check every 2 years Check efficiency of fan s operation Test for gas soundness Clean the burner and check the ignition efficiency Clean the condensate drain siphon and check that it is discharging correctly Check the water and gas safety devices 1 6 8 3 2 4 5 7 DANGER If during inspection visits and or servicing of the appliance the heat exchanger boiler body has to be dismantled the s...

Page 40: ...he return temperature sensor is 35 C It is annulled when the temperature difference is 25 C CODE DISPLAYED ON THE DIGITAL ROOM CONTROLLER 04 04 04 04 04 Fan speed adjustment error Description The fan does not reach the requested speed CODE DISPLAYED ON THE DIGITAL ROOM CONTROLLER 06 06 06 06 06 Overheat heat exchanger Description It is activated when the flow temperature detected by the sensor in ...

Page 41: ... CH sensor CODE DISPLAYED ON THE DIGITAL ROOM CONTROLLER 1 1 1 1 14 4 4 4 4 DHW temperature sensor Description Interruption or short circuit of the DHW sensor CODE DISPLAYED ON THE DIGITAL ROOM CONTROLLER 11 11 11 11 11 Factory parameters Description Alteration of the factory parameters caused by electromagnetic disturbances Restore the parameters via the remote control CODE DISPLAYED ON THE DIGIT...

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Page 44: ...al ag info unical ag com The Unical declines every responsibility for the possible inaccuracies if owed to errors of transcript or press Also reserves the right to bring those changes that it will hold necessary to it own products or profits without jeopardizing its essential characteristics ...

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