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Unical Osa S 24, Installation And Servicing Manual, Page: 49 / 52

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Unical Osa S 24 Installation And Servicing Manual Download Page 49

49

4.6.1 - SERVICE PANEL

The boiler can be programmed also by 

means of the service inner panel.

Remove the screws indicated to ex-

tract the panel and turn.

Indications related to programming 

with the emergency panel, can be 

found at the address indicated on 

page 2, or on the user / installation 

manual and maintenance of KONE 

model boiler.

  

Summary of Contents for Osa S 24

Page 1: ...E N G L I S H INSTALLATION AND SERVICING MANUAL S 24 S 28 S 35 TOUCH CONTROL Ufly BOX integrate ...

Page 2: ...d by the local authorities or to a dealer who offers this service Separate disposal of a domestic appliance avoids possible negative consequences for the environment and human health deriving from inappropriate waste handling and allows the recovery of the materials of which it is made in order to obtain significant energy and resource savings http www unicalag it prodotti domestico 50 condensazio...

Page 3: ...ndi Ufly BOX 33 4 2 Parameters that can be edited from the control panel 35 4 3 Adaptation of the power to the heating system 38 4 3 1 GAC adjustment 39 4 4 Wiring diagram 43 4 5 Error Code 44 4 5 1 Filling system 47 4 6 Important Note 48 4 6 1 Service panel 49 3 INSTALLATION INSTRUCTIONS 16 3 1 General warnings 16 3 2 Installation standards 16 3 3 Preventive system verification and adjustment ope...

Page 4: ...t was expressly designed Any other use is to be considered improper and therefore dangerous 1 1 general warnings The instruction booklet is an integral and essential part of the product and must be kept by the user Read the warnings contained in this instruction booklet carefully as they provide important guidelines regarding installation use and maintenance safety Keep the booklet with care for f...

Page 5: ...ther documents concerning the appliance inserted in the envelope inside the packaging The user must keep this documentation safe for future consultation Inform the user about the importance of the air vents and the flue gas exhaust system high lighting their essential features and the absolute prohibition of modifying them Inform the user concerning controlling the system s water pressure as well ...

Page 6: ...ch affect the operating safety of the appliance Attention To tighten or loosen the screwed fittings use only appropriate fixed spanners Incompliant use and or inappropriate tools can cause damage e g water or gas leakage ATTENTION Indications for propane gas fired appliances Make sure that the gas tank has been deaerated before installing the appliance For state of the art tank venting contact the...

Page 7: ...c hot water temperature C Electrical characteristics 21 Electrical power supply 22 Consumption 23 Protection rating D Countries of destination 24 Direct and indirect countries of destination 25 Gas category 26 Supply pressure E Factory settings 27 Adjusted for gas type X 28 Space for national brands G ErP 29 Seasonal space heating energy efficiency 30 Energy efficiency in DHW production mode The r...

Page 8: ...t be clean see system protection ACCESSO RIES sect in domestic price list VALUE MIN MAX PH 6 5 8 Hardness fr 9 15 1 8 BOILER ANTIFREEZE PROTECTION P O S ANTIFREEZE FUNCTION Power supplies 11 SR Status function antifreeze Actions Electric Gas 1 ON ON 6 C ON Burner and Pump ON until T 14 C 2 ON OFF 2 C ON Only when both the power supplies are ON Burner and Pump OFF until T 5 C When T 5 C then Burner...

Page 9: ...E N G L I S H 2 OSA S 24 TECHNICAL FEATURES AND DIMENSIONS 2 1 TECHNICAL FEATURES 2 2 VIEW WITH THE INDICATION OF THE MAIN COMPONENTS AND DIMENSIONS NOTE For more information See Technical Info from site indicated at pag 2 ...

Page 10: ...10 OSA S 28 OSA S 35 ...

Page 11: ...11 OSA S 24 OSA S 28 OSA S 35 View from above View from below ...

Page 12: ...Safety valve 22 rb SRR Return temperature sensor 23 tf TLC Flue gas collector safety ther mostat 24 Aluminium Heat Exchanger Ca pacitor 25 Vent valve 26 Condensation drain trap 33 Ufly BOX retractable 34 Gateway external links 35 Emergency panel Aves Connection for additional expansion vessel C Domestic hot water outlet G G Gas inlet G F Cold water inlet G M Heating system flow G R Heating system ...

Page 13: ... PUMP OSA S 24 OSA S 28 OSA S 35 2 3 DIAGRAM OF FLOW RATE PRESSURE AVAILABLE FOR INSTALLATION Flow rate l h Flow rate l h Avaible Head m c a metres of water Avaible Head m c a metres of water DIAGRAM OF FLOW RATE PRESSURE AVAILABLE FOR INSTALLATION ...

Page 14: ...energy efficiency ƞs 94 94 94 Seasonal efficiency class in heating mode A A A Integrated Weather compensator and room sensor Classe VI 4 4 4 Seasonal space heating energy efficiency of package ƞs Packaging 98 98 98 Seasonal space heating energy efficiency class of package A A A For CH only and combination boilers useful heat output Useful Heat Output in high tempera ture regime Tr 60 C Tm 80 C P4 ...

Page 15: ... with t 35 K l min 9 4 13 3 13 3 Production of D H W in continuous operation with t 30 K l min 11 0 15 5 15 5 Production of D H W in continuous operation with t 25 K l min 13 2 18 6 18 6 Voltage Frequency electric power supply C 35 60 35 60 35 60 Fuse on the power supply V Hz 230 50 230 50 230 50 Maximum absorbed output A F 3 15 3 15 3 15 Protection rating IP X4D X4D X4D Net weight boiler kg 41 41...

Page 16: ...tion If there is dust and or if there are aggressive corrosive vapours present in the installation room the appliance must be protected suitably and must be able to operate independently from the air in the room Attention Only mount the appliance on a closed wall made of non flammable materi al flat vertical so that the minimum distances required for installation and maintenance can be observed Th...

Page 17: ... must be kept out of the reach of children as they are potential sources of danger Unical AG S p A will not be held liable As well as the appliance the packaging contains A DOCUMENTATION ENVELOPE User operating instructions booklet Instruction booklet for the installer and maintenance engineer Warranty 2 Spare parts form Certificate of conformity Gas conversion label B Connection predisposition pa...

Page 18: ...support its weight The wall must not be made of flammable material Since the temperature of the wall on which the boil er is installed and the temperature of the coaxial exhaust pipe do not exceed in normal operating conditions a room temperature beyond 60 K it is not necessary to observe the minimum distances from flammable walls For boilers with double intake and exhaust pipes in the event of cr...

Page 19: ... min 250 mm max 500 Horizontal exhaust and intake terminals directed outside via coaxial or double pipes C33x C33 TOTAL LENGTH LA intake L Exhaust COAXIAL Ø60 100 DOUBLE Ø80 FROM m TO m FROM m TO m 1 7 0 5 0 5 40 20A 20S COAXIAL Ø80 125 DOUBLE Ø60 FROM m TO m FROM m TO m 1 9 1 1 20 10A 10S ertical exhaust and intake terminals directed out side via coaxial or double pipes C53x C53 C53 NOT ALLOWED C...

Page 20: ...st Subtracting the values of LT reported at values of bends terminals extensions you get the value if 0 OK POSSIBLE configuration if 0 NO WRONG configuration Values in the MT018 available on the website C83x C83 Connection to a terminal for combustion air intake and flue gas exhaust via a single or collective chimney C93x C93 Air flue gas through concentric pipes in the boiler room and single pipe...

Page 21: ...FORMATION ON THE FLUE GAS EXHAUST SYSTEM It is recommended to only use original Unical exhaust pipes The supplier will have no contractual or extra contractual liability for damage caused due to incorrect installation and use and in any case failure to comply with the instructions provided by the manufacturer NOTE For further details relating to pressure drops of the individual components for info...

Page 22: ... forms inside the boiler flows into a suitable drain via pipe B Condensation outlet pipe to be connected to the drainage system Danger Before commissioning the appliance check that the trap is assembled properly fill the trap and check that the condensation is drained properly If the appliance is used with an empty condensation drain trap there is an intoxication hazard due to the release of exhau...

Page 23: ...e reaches approximately 0 8 1 bar close the filling tap Rc and bleed air once again through the radiator air release valves make sure that all the connections are watertight after commissioning the boiler see par 3 10 and bringing the system to the operating temperature stop the boiler and repeat the air bleed operations let the system cool down and if necessary return the water pressure to 0 8 1 ...

Page 24: ...oom thermostat OT OpenTherm is not enabled The external connections have to be made on the GATEWAY connector Y3 the cable exits wil be made in groves on cover A Optional Danger Only a qualified technician may per form the electrical installation Before performing connections or 3 9 ELECTRICAL CONNECTIONS any type of operation on electrical parts always disconnect electrical power and make sure tha...

Page 25: ...ng maintenance quick and safe The power cable must be replaced by technical personnel authorised by UNICALAG S p A using original spare parts only Failure to comply with the above can jeopardise the safety of the appliance Electric power supply connection Arranged on GATEWAY connector Y3 4 3 SHC Multifunction module SE Outside sensor supplied INSIDE BOILER Modulation Board If necessary the shield ...

Page 26: ... off gate valves open does the gas to be used correspond to the boiler calibration gas otherwise perform the boiler conversion in order to use the gas available see section 4 3 this operation must be carried out by technical staff qualified in compliance with the standards in force is the gas supply valve open has the system been checked for gas leaks is the outside main switch ON is the system sa...

Page 27: ...uthorised Assistance Centres only 1 Inserit psw and select the function 4 Activation 2 Activation 3 Available choice generator indicated by es usually 1 modulex 1 8 3 11 MEASUREMENT OF COMBUSTION EFFICIENCY DURING INSTALLATION 3 11 1 ACTIVATION OF THE calibration function 2 3 4 ...

Page 28: ...e combustion air temperature taken in the relevant hole 2 Coaxial pipes SEPARATE pipes Pipes Ø 80 type B23 Flue gas probe Air probe measurement of the flue gas temperature and content of CO2 taken in the relevant hole 1 Take the measurements with the generator in steady state conditions see par 3 11 1 3 11 2 Positioning the probes Air probe Air probe Flue gas probe Flue gas probe It s important to...

Page 29: ... m h Propano G31 4 3 27 3 4 4 28 0 37 10 4 10 5 0 34 kg h 2 17 kg h 9 0 9 8 Acceptable range for G20 10 0 11 0 Acceptable range for G31 OSA S 35 Type of Gas Effective Output kW Heating Thermal kW Capacity Supply Press mbar Fan speed rpm Collector diaphragm Ø n holes CO2 levels Con sumption Con sumption Start up power IG min max min max min max Gas nat G20 4 3 32 2 4 4 33 0 20 9 2 9 3 0 47 m h 3 49...

Page 30: ... next level by pressing Ignition If the CO2 value is not as expected when appears box you can retouch the value of the Minimum Power If the CO2 value is not as expected when appears box you can retouch the value of the Ignition If the desired value has been reached proceed to the next level by pressing Minimum The combustion adjustment is finished This function allows a partial adjustment of the C...

Page 31: ...ING SYSTEM Act on parameter 792 par 4 2 SE parameters list to achieve the value corresponding to the desired output The user is NOT authorised to activate the func tion described below E g OSA S 24 to decrease the output of the boiler to 18 kW edit parameter 792 on Ufly BOX about 70 E g OSA S 35 to decrease the output of the boiler to 24 kW edit parameter 792 on Ufly BOX about 68 E g OSA S 28 to d...

Page 32: ... the temperature C and the nom resistance Ohm of the heating probe SR and of the domestic hot water probe SS Example At 25 C the nominal resistance is 10067 Ohm At 90 C the nominal resistance is 920 Ohm 4 1 INSPECTION AND MAINTE NANCE INSTRUCTIONS To assure long term functioning of your appliance and to avoid altering its approved status only original Unical AG S p A spare parts must be used If a ...

Page 33: ...dicated General Operating Instructions for Ufly BOX are contained in specific manual provided with the boiler This section only lists the steps requi red to Adjustment maintenance of the boiler Chimney sweep function Par 3 11 1 Calibration Par 3 12 1 Edit parameters Par 4 2 Automatic calibration GAC Adaptive Calibration Gas Par 4 3 1 ...

Page 34: ...the water pressure is below 0 4 bar Without request close the shut off valves of the heating circuit open the drain valve to make the water pressure decrease Before pressurising again check the pressure of the expansion vessel Expansion vessel 8 Does the vessel contain the right amount of air Check the pressure in expansion vessel 1 bar when the boiler is empty Pressurise the boiler open the pump ...

Page 35: ... scans devices if new devices are recognized such as hcm bcm Heating Burner Control Manager shc Slave Heating Controller Multifunction module bmm Burner Modul Manager They are displayed on the next screen and is prompted to save the new configuration Icon scanning devices icon save new configuration Device detected Not installed device previously recognized device but not de tected ...

Page 36: ...H 1 Minimum Set point 30 20 45 39 CH 1 Max Set point 85 50 85 650 ACS Set point Min 35 25 45 385 ACS Set point Max 60 50 65 48 CH 1 Set point C 70 20 85 832 Access Code 0 0 199 To change the following parameters you must enable the access code 778 Burner 0 G20 1 GPL 0 0 1 341 Pump Minimum Control 0 100 313 Pump Maximum Control 20 100 312 Pump temp diff C 5 20 775 Valvola Dev Stroke time sec 0 6 30...

Page 37: ... CH ACS 0 0 100 2590 Burner power 0 9 619 Modulation and ignition 10 70 Historical Error Clean display Error with CLEAR 346 Fan min speed 0 199 319 fan max speed 0 199 353 Regolation Proportional 1 20 354 Regolation Integrative 1 20 478 Regolation Derivative 1 20 323 ACS PID Proportional 1 20 324 ACS PID Integrative 1 50 325 ACS PID Derivative 1 20 Enable insert value to change parameter x 10 750 ...

Page 38: ...s fired appliances Make sure that the gas tank has been deaerated before installing the appli ance For state of the art deaeration of the tank contact the LPG supplier or a person qualified in compliance with law If the tank has not been profession ally deaerated ignition problems could arise In that case contact the supplier of the LPG tank 4 3 ADAPTATION TO THE USE OF OTHER GAS Gas Conversion Th...

Page 39: ...mestic hot water mode as well Make sure that there are no heating requests pre sent and that all the valves of the heating system are open If during this stage one wishes to disperse the heat on the domestic hot water circuit open at least 2 hot water taps ONLYAFTER HAVINGACTIVATED THE GAC FUNCTION 4 3 1 GAC AUTOMATIC CALIBRATION WARNING Function reserved exclusively to authorized service centers ...

Page 40: ...40 Step 2 CALIBRATION POWER START Step 3 CALIBRATION MIN POWER Step 1 CALIBRATION MAX POWER The automatic calibration is completed To perform the calibration adjustment of combu stion see par 3 12 1 ...

Page 41: ...41 Maintenance instructions E N G L I S H This page is intentionally left blank ...

Page 42: ...1 A9 Services connectors ALIM P sup Supply Pump Extra CMP Control modulating Pump E ACC RIL Ignition detection electrode EVCI Caricamento Impianto Only OSA S FLS Domestic hot water request flow switch MEMORY CARD Memory ...

Page 43: ...low heating sensor SRR Return heating sensor SS Domestic hot water probe Pred for R models TL Limit thermostat TLC Flue gas collector limit thermostat VG Gas valve VM A Soupply modulating fan VM R Rilev Reg Modulating Fun Scheda GATEWAY Y1 Y3 Services connectors 230 V 50 Hz Boiler Supply EXT DEVICE External devices SHC eBUS eBUS SA Terminal Room sensor SE Terminal Outer sensor OT TA Terminal TA on...

Page 44: ...inimum water pressure pressure switch 13 Fill the heating circuit as described in chap 3 8 and wait for the values to return within default limits If needed check the electrical connections and replace the minimum water pressure switch 09 Outer Sensor Check the wiring if needed replace outer sensor 10 Internal failure 11 Parasite Flame Flame detected upon ignition Check the wiring of the Ign Det e...

Page 45: ...a Ufly restore the altered parameters 31 System configuration invalid or corrupted 32 Low line voltage Correction if the line voltage is 190 Vac the line voltage is really below the minimum limit otherwise the line monitor error replace BMM 38 Factory Parameters Alteration of the factory parameters due to possible electromagnetic interferences Press RESET if the anomaly persists replace the board ...

Page 46: ...46 94 Gas valve wiring 95 Frequent loss of flame 99 Internal error 100 General Lockout not listed 101 Ignition failure 102 Short circuit of the iono electrode 103 Gas valve open delay ...

Page 47: ... THE SYSTEM If the system does not reach 1 2 bar pressure within 60 seconds activate the fill manually by pressing LOAD icon By pressing reset icon start the automatic filling up to a pressure of 1 2 bar 60 sec max ...

Page 48: ...OARD A universal board B memory board The memory board is programmed by de fault for METHANE gas operation In the event of LPG operation the 778 pa rameter must be edited Factory parameters see Chap 4 2 In the event the memory board can be re used there is no need to reprogram parame ters settings and automatic calibration 4 6 IMPORTANT NOTES REPLACING COMPONENTS Before replacing components one mu...

Page 49: ... of the service inner panel Remove the screws indicated to ex tract the panel and turn Indications related to programming with the emergency panel can be found at the address indicated on page 2 or on the user installation manual and maintenance of KONE model boiler ...

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Page 52: ...nical eu AG S p A 00336315 1 st ed 06 15 www unical eu 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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