Unical KONm C 18, Installation And Servicing Manual

Page 1: ...E N G L I S H INSTALLATION AND SERVICING MANUAL R 18 C 18 R 24 C 24 R 28 C 28 R 35 C 35 KONm ...

Page 2: ... It can be taken to a special recycling centre managed 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 ...

Page 3: ...33 4 1 Inspection and maintenance instructions 33 4 2 Parameters that can be edited from the control panel 35 4 3 Adaptation to the use of other gas 36 4 5 Wiring diagram 39 4 6 Error codes 41 3 INSTALLATION INSTRUCTIONS 17 3 1 General warnings 17 3 2 Installation standards 17 3 3 Preventive system verification and adjustment operations 17 3 4 Packaging 18 3 5 Positioning the boiler 19 3 6 Flue ga...

Page 4: ...it 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 ...

Page 5: ...user as well as other 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 ...

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: ... T max Max domestic 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 pro...

Page 8: ...eatment of the supply water allows to prevent inconveniences and maintain the functionality and efficiency of the generator over time The ideal water pH in heating systems must be within To minimise corrosion it is crucial to use a corrosion inhibitor in order for it to work properly the metal surfac es must be clean see system protection ACCESSO RIES sect in domestic price list VALUE MIN MAX PH 6...

Page 9: ...ating and domestic hot water services MAX M I N MAX MIN 1 8 BOILER ANTIFREEZE PROTECTION This protection can intervene only if the electricity and gas supplies are connected If one of the two is not available and upon reset 11 SR a temperature of 2 C is detected the appliance will behave as described in tab pos 2 The heating system can be protected effectively from frost by using antifreeze produc...

Page 10: ... 2 TECHNICAL FEATURES AND DIMENSIONS 2 1 TECHNICAL FEATURES 2 2 VIEW WITH THE INDICATION OF THE MAIN COMPONENTS AND DIMENSIONS KONm C18 KONm C24 23 27 19 NOTE For further details refer to the Technical Information from the website 8 Expansion vessel 10 HL TL Safety thermostat 11 Hb SR Heating temperature sensor 12 Ht P Pump 13 Lp DK Water deficiency pressure switch 15 Filling valve ...

Page 11: ...minium Heat Exchanger Ca pacitor 25 Vent valve 26 Condensation drain trap 27 SL Condensate level sensor C Domestic hot water outlet G G Gas inlet G KONm C28 KONm C35 2 3 1 23 22 24 18 25 4 26 15 17 20 12 13 16 8 5 10 11 27 F Cold water inlet G M Heating system flow G R Heating system return G Rc Filling valve Sc Boiler drain Svs Safety valve drain Scond Condensation drain C E ERROR CODES see par 4...

Page 12: ...12 345 0 1 2 3 4 bar MAX M I N MAX MIN bar service EA D 700 420 125 205 225 125 131 70 61 130 60 56 43 207 247 C F G R M Svs Rc Scond Sc 67 KONm C18 KONm C24 View from above View from below ...

Page 13: ...atures E N G L I S H 0 1 2 3 4 bar MAX M I N MAX MIN bar service EA D 700 420 345 251 5 168 5 142 194 131 70 61 130 60 56 43 104 137 207 247 C F G R M Svs Rc Scond Sc KONm C28 KONm C35 View from above View from below ...

Page 14: ... 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 MODULATING PUMP DIAGRAM OF FLOW RATE PRESSURE AVAILABLE FOR INSTALLATION ...

Page 15: ...PES OF GAS 2 5 GENERAL FEATURES KONm R 18 C 18 R 24 C 24 R 28 C 28 R 35 C35 Appliance category II2H3P II2H3P II2H3P II2H3P Minimum heat circuit output t 20 C l min 1 2 1 2 1 7 1 7 Minimum heating circuit pressure bar 0 5 0 5 0 5 0 5 Maximum heating circuit pressure bar 3 3 3 3 Primary circuit content l 2 2 2 2 2 8 2 8 Maximum operating temperature in heat C 85 85 85 85 Minimum operating temperatur...

Page 16: ...d boiler YES NO SI SI SI SI Auxiliary electricity consumption At full load elmax kW 0 085 0 085 0 116 0 116 At part load elmin kW 0 012 0 012 0 012 0 012 In stand by mode PSB kW 0 003 0 003 0 003 0 003 Other items Heat loss in stand by Pstb kW 0 0824 0 0824 0 1136 0 1136 Emissions of nitrogen oxides ref PCS NOx mg kWh 33 45 50 39 NOx Class 6 6 6 6 Annual electricity consumption QHE GJ 32 40 49 56 ...

Page 17: ... 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 The boiler must be connected to a cen tral heating system and or domestic hot water supply network c...

Page 18: ...r ob jects due to failure to comply with the instruction above H P L As well as the appliance the packaging contains A DOCUMENTATION ENVELOPE System booklet User operating instructions booklet Instruction booklet for the installer and maintenance engineer Warranty 2 Spare parts form Certificate of conformity B Connection predisposition paper template C Chimney spacer 2 1 3 4 PACKAGING P depth L wi...

Page 19: ...ppliance must only be installed on a vertical and solid wall which can 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 wa...

Page 20: ...alues of bends terminals extensions you get the value if 0 OK POSSIBLE configuration if 0 NO WRONG configuration Please note these values relate to exhausts made by means of rigid pipes and smooth original UNICAL C33x C33 LT TOTAL LENGTH or 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...

Page 21: ...isting of two pipes one for combustion air intake and the other one for combustion products evacuation coaxial or double C63x C63 Boiler intended for connection to a combustion air intake and combustion products evacuation system approved and sold separately 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 thr...

Page 22: ...t 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 GENERAL INFORMATION ON THE FLUE GAS EXHAUST SYSTEM Concentric start Adapter for double systems B23P TOTAL LENGTH LS DOUBLE Ø80 FROM m TO m 1 30 Connection to a combustion products ev...

Page 23: ...1 2 F COLD 1 2 Sc BOILER DRAIN S cond CONDENSATION DRAIN Rc FILLING VALVE Svs SAFETY VALVE DRAIN Provide a drain pipe with funnel and a trap that lead to a suitable drain in cor respondence of Svs This drainage must be controlled on sight If this precaution is not taken trigger ing of the safety valve can cause dam age to persons animals and objects for which the manufacturer cannot be held respon...

Page 24: ...n the system connections have been completed the circuit can be filled This operation must be performed carefully respect ing the following phases open the radiator vent valves and make sure the automatic valve is working properly in the boiler open the filling tap gradually making sure that the automatic air release valves installed on the system work properly close the radiator air release valve...

Page 25: ... jumper ON OFF room thermostat connection RT OT A3 4 32 1 6 5 SE TA 1 OT TA 2 WH WH Y Y BK BK TA ON OFF 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 that it cannot be reconnected accidentally 00330914 ATTENZIONE ATTENT...

Page 26: ... connection must be made up to standard as required the regulations in force Remember that a bipolar switch must be nstalled on the boiler power line with over 3 mm between contacts easy to access making maintenance quick and safe The power cable must be replaced by technical personnel authorised by UNI CALAG S p A using original spare parts only Failure to comply with the above can jeopardise the...

Page 27: ... stopped Has the condensate drain trap been installed correctly as indicated in chapter 3 7 are any system shut 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...

Page 28: ...ON OF THE calibration function 3 11 2 Positioning the probes 1 ACTIVATION By pressing the button D for 3 seconds the calibration function is activated Release it when the SERVICE symbol appears Do not press it for more than 9 par 4 2 This function is not activat ed if there is a block or domestic hot water request 2 MAXIMUM OUTPUT By turning the knob B onto MAX the boiler will operate at maximum o...

Page 29: ... value corresponds to that indicated in the table NOZZLES PRESSURE Correct it if needed by turning with a screwdriver the screw R CLOCKWISE to increase it ANTI CLOCKWISE to decrease it ADJUSTMENT SCREW MAXIMUM OUTPUT ADJUSTMENT SCREW MINIMUM OUTPUT model KONm 18 KONm 24 R S The following instructions are intended exclusively for authorised service per sonnel 3 12 ADJUSTING THE BURNER Remove the ca...

Page 30: ...t adjustment Operate the boiler in calibration mode at MAXI MUM OUTPUT see 3 11 1 Once the burner is on check that the CO2 MAXIMUM value corresponds to that indicated in the table NOZZLES PRES SURE if it does not correspond correct it by turning the screw S CLOCKWISE to decrease it ANTI CLOCKWISE to increase it 2 Minimum output adjustment Operate the boiler in calibration mode at MINI MUM OUTPUT s...

Page 31: ...ermal kW Capacity Supply Press mbar Fan speed rpm Collector diaphragm Ø n holes Diaphragm VG Ø CO2 levels Con sump tion Con sumption Start up power IG min max min max min max Nat gas G20 4 3 27 2 4 4 28 0 20 1200 6200 9 8x25 6 5 9 9 3 9 3 0 47 m h 2 96 m h 60 Nat gas G25 4 3 27 2 4 4 28 0 25 1200 6200 9 8x25 6 6 5 9 3 9 3 0 54 m h 3 44 m h 60 Propane G31 5 4 27 2 5 6 28 0 37 1400 5900 9 8x25 6 4 7...

Page 32: ...is possible to adjust the maximum thermal capacity in heating mode by decreasing the burner output value 3 12 1 ADAPTATION OF THE POWER TO THE HEATING SYSTEM Act on parameter HP par 4 2 parameters that can be edited from control panel to achieve the value corresponding to the desired output The user is NOT authorised to activate the func tion described below ...

Page 33: ...nlet valve if closed previously Vent and if necessary restore the heating pres sure until reaching a pressure of 0 8 1 0 bar Open the gas shut off valve Switch the boiler on Make sure the appliance is gas tight and water tight Remount the front casing of the appliance Failure to perform Inspections and Main tenance can entail material and personal damage TABLE OF RESISTANCE VALUES ACCORDING TO THE...

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: ...ULT 0 TA 0 5 TA 5 30 TA 30 0 TA 0 MAXIMUM HEATING OUTPUT VALUES FROM TO DEFAULT 0 Min 99 Max 99 PREHEATING VALUES FROM TO DEFAULT 0 1 0 EXTERNAL PROBE TEMPERATURE VALUES FROM TO DEFAULT 0 20 C 30 10 C 20 0 C PUMP POST CIRCULATION VALUES FROM TO DEFAULT 0 5 min 1 ALWAYS 0 5 min SELECTION Turn the HEATING knob B EDITING THE VALUE Turn the DOMESTIC HOT WATER knob C The value flashes on the display CO...

Page 36: ...his new type of gas ATTENTION Indications for propane gas fired ap pliances Make sure that the gas tank has been deaerated before installing the appliance 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 professionally deaerated ignition problems could arise In that case contact the supplier of the LPG tank 4...

Page 37: ... conversion kit Access the modulation board contained in the electric panel and position the jumper in the position corresponding to the new type of gas indicated in the figure Ending of gas transformation see chap 4 3 1 Remove gas valve unscrew connection 2 wrench 30 mm Model KONm 28 KONm 35 Disconnect the appliance from the elctrical power supply Close the gas inlet tap ...

Page 38: ...ion Close the electric panel and restore the appliance s electric power supply Check the pressure value upstream of the gas valve see table NOZZLES PRESSURE and adjust the CO2 as indicated in paragraph 3 12 Check that the burner is working properly Check that there are no gas leaks EXAMPLE OF COMPILATION NOTE Further details in the section Technical Information on the boiler page of the www unical...

Page 39: ...A connection terminals Model KONm 18 KONm 24 4 5 WIRING DIAGRAM COLORS BL BLUE BR BROWN BK BLACK G GREEN GR GREY L BL LIGHT BLUE OR ORANGE PK PINK R RED Y YELLOW YG YELLOW GREEN WH WHITW VI VIOLET MDV MDV 230 V 50 Hz L1 N GND P N L1 R YG BL BR 1 2 A8 3 4 5 BR YG BL 1 2 3 BL BR BK CH DHW M P N L1 1 2 A8 3 4 5 BR YG BL MDV C R A1 4 3 21 8 76 5 9 4 A9 32 1 BK 1 3 St2 BL TACHO BK PWM OR 2 4 5 C DK WH ...

Page 40: ...erminals COLORS BL BLUE BR BROWN BK BLACK G GREEN GR GREY L BL LIGHT BLUE OR ORANGE PK PINK R RED Y YELLOW YG YELLOW GREEN WH WHITW VI VIOLET MDV MDV 230 V 50 Hz L1 N GND P N L1 R YG BL BR 1 2 A8 3 4 5 BR YG BL 1 2 3 BL BR BK CH DHW M P N L1 1 2 A8 3 4 5 BR YG BL MDV C R A1 4 3 21 8 76 5 9 4 A9 32 1 BK 1 3 St2 BL TACHO BK PWM OR 2 4 5 C DK WH FLS SS SR BR WH BR WH WH R R A1 4 3 21 8 76 5 9 R DK WH...

Page 41: ... wiring if needed replace the external probe 14 1 RETURN PROBE Auxiliary SRR sensor inter rupted Check the wiring if needed re place the auxiliary sensor 22 30 2 SERVICE PARAMETERS Service parameters altered due to possible electromagnetic interferences Reset the altered parameters via the panel and or regola facile 21 3 POOR WATER CIRCULATION Poor circulation in primary circuit Check pump operati...

Page 42: ...EXCHANGER FREEZING 24 Exchanger freezing is detected If the heating sensor detects a temperature below 2 C burn er ignition is inhibited until the sensor detects a temperature above 5 C Disconnect the from the power supply close the gas valve defrost the exchanger carefully LIMIT THERM 11 SAFETY THERMOSTAT Intervention of the safety ther mostat 10 Press the unblock button on the panel and or check...

Page 43: ... chimney intake or exhaust is obstructed if there is no obstruction press reset button on the panel 19 22 FLAME CONTROL Flame control damaged Replace the board CONDENSATE SENSOR LE VEL 27 SL condensate sensor level intervention Check the condensation level in the condensate tray Check that the flue gas exhaust pipe is not obsructed check that the condensate drain trap is clean if there is a conden...

Page 44: ...rors 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 46033 casteldario mantova italia tel 39 0376 57001 fax 39 0376 660556 info unical ag com export unical ag com www unical eu AG S p A www unical eu ...