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Unical R 24, Installation And Servicing Manual

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Unical R 24 Installation And Servicing Manual Download Page 39

39

ENGLISH

Installation Instructions

It 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

E.g.: 

X 24

 

to decrease the output of the 

boiler to 18 kW, edit parameter 

HP (about 68)

.

Act on parameter 

HP

 (par. 4.2 parameters that can 

be edited from control panel) to achieve the value 

corresponding to the desired output.

ATTENTION!

Function reserved for Authorised 

Assistance Centres only.

The user is NOT authorised to acti-

vate the function described below.

Summary of Contents for R 24

Page 1: ...E N G L I S H INSTALLATION AND SERVICING MANUAL X MAX M I N MAX MIN Reset bar service R 24 C 24 R 32 C 32...

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 fo...

Page 3: ...s 40 4 2 Parameters that can be edited from the control panel 41 4 3 Adaptation to the use of other gas 43 4 4 Wiring diagram 45 4 5 Error codes 46 3 INSTALLATION INSTRUCTIONS 16 3 1 General warnings...

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 ke...

Page 5: ...ser 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 impor...

Page 6: ...h 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 w...

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 dest...

Page 8: ...r 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...

Page 9: ...antifreeze function only po sition the two knobs as shown in the figure The Antifreeze protection is always active Even by disabling the heating and domestic hot water services 1 8 BOILER ANTIFREEZE P...

Page 10: ...rner 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 16 Diverting valve 2 TECHNICAL FEATURES AND DIMENSIONS 2 1...

Page 11: ...safety thermostat 24 Aluminium Heat Exchanger Ca pacitor Condensate drain siphon outlet position C Domestic hot water outlet G G Gas inlet G F Cold water inlet G M Heating system flow G R Heating sys...

Page 12: ...12 210 210 125 125 209 131 151 131 70 61 130 60 56 43 104 137 204 247 C F G R M Svs Rc Scond Sc 345 700 420 MAX M I N MAX MIN Reset bar service X View from above View from below...

Page 13: ...13 Technical Features E N G L I S H 2 3 DIAGRAM OF FLOW RATE PRESSURE AVAILABLE FOR INSTALLATION Flow rate l h Avaible Head m c a metres of water...

Page 14: ...operation dB A 43 46 Sound pressure level LpA at medium operation dB A Notes Room Temperature 20 C Data obtained with appliance operated with Nat Gas G20 Note measured in free field at 1 m distance fr...

Page 15: ...ency at 30 of nom heat output in low temperature regime Tr 30 C 1 97 9 97 8 Range rated boiler YES NO NO NO Auxiliary electricity consumption At full load elmax kW 0 035 0 064 At part load elmin kW 0...

Page 16: ...he 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 vert...

Page 17: ...to failure to comply with the instruction above As well as the appliance the packaging contains A DOCUMENTATION ENVELOPE User operating instructions booklet Instruction booklet for the installer and m...

Page 18: ...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 roo...

Page 19: ...L I S H Installation Instructions 33 702 420 61 70 79 43 51 56 60 4 C F G R M 135 125 80 80 100 80 765 125 125 bar bar service service bar bar Reset MAX M I N MAX MIN 3 5 1 REFERENCES FOR BOILER POSI...

Page 20: ...tputs 80 kit b hydraulic outlets reference for installation with horizontal pipe kit 00362527 SVS Scond 250 distance from safety relief valve wall condensate drain 1 3 4 5 S A1 A2 2 WARNING Fit gasket...

Page 21: ...f LT repor ted at values 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 p...

Page 22: ...bustion products evacuation pipes These pipes can discharge into areas with different pressure C 43 3 x C 43 3 Collective chimney flue system consisting of two pipes one for combustion air intake and...

Page 23: ...evacuation pipe outside the room the combustion air is tak en directly from the room where the appliance is installed ATTENTION 50 smoke exhaust only for type B23P type and C53 C 83 3 x C 83 3 Connect...

Page 24: ...ucts are watertight C 10 3 x C 10 3 Slope towards the entrance 3 Lmin Lmax Minimum and maximum LENGTH at the flue entrance COAXIAL 60 100 DOUBLE 80 FROM m TO m FROM m TO m 0 5 0 5 4 5 4 5 COAXIAL 80 1...

Page 25: ...stion characteri stics The number of devices that can be connected to a collective flue in positive pressure is defined by the designer of the flue The boiler is designed to be connected to a collecti...

Page 26: ...r and collar 3 contained in coaxial fumes kit as indicated Attention The air closure cap T must always be mounted on the air inlet hole 80 A1 or A2 GENERAL INFORMATION ON THE FLUE GAS EXHAUST SYSTEM C...

Page 27: ...double 80 00364891 00364817 S A1 A2 T 1 For split systems DO NOT USE THE INTAKE EXHAUSTADAPTER 2 supplied with the boiler Use split system adapters as indicated Attention The air closure cap T d must...

Page 28: ...xhaust 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 provid...

Page 29: ...y company Incorrect installation can cause damage to persons animals and objects for which the manufacturer cannot be held responsible If you smell gas a Do not operate electric switches the telephone...

Page 30: ...30 3 5 4...

Page 31: ...h the above instruction 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 th...

Page 32: ...ELECTRICAL CONNECTIONS A3 4 32 1 6 5 SE TA 1 OT TA 2 WH WH Y Y BK BK TA ON OFF type of operation on electrical parts always disconnect electrical power and make sure that it cannot be reconnected acc...

Page 33: ...is 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 m...

Page 34: ...rain 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 co...

Page 35: ...ion function stays active for 15 min utes To disable the CALIBRATION function before the time elapses switch the boiler on and off again by acting on the main switch 3 MINIMUM OUTPUT By turning the kn...

Page 36: ...CO2 taken in the relevant hole 2 Take the measurements with the generator in steady state conditions see par 3 11 1 3 11 2 POSITIONING THE PROBES C PIPES 80 TYPE B23 1 2 1 B SEPARATE PIPES 2 1 2 A CO...

Page 37: ...by turning with a screwdriver the screw R CLOCKWISE to increase it ANTICLOCKWISE to decrease it ADJUSTMENT SCREW MAXIMUM OUTPUT ADJUSTMENT SCREW MINIMUM OUTPUT Remove the cap and insert the CO2 analys...

Page 38: ...gm n holes Dia phragm VG CO2 levels Levels O2 Con sumpt m3 h kg h Con sumpt m3 h kg h Start up power IG min max min max min max min max Nat gas G20 4 8 23 4 5 24 20 1300 5000 5 8 9 9 4 8 4 8 0 53 2 54...

Page 39: ...WER TO THE HEATING SYSTEM E g X 24 to decrease the output of the boiler to 18 kW edit parameter HP about 68 Act on parameter HP par 4 2 parameters that can be edited from control panel to achieve the...

Page 40: ...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...

Page 41: ...ock the boiler if 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 agai...

Page 42: ...N Turn the HEATING knob B EDITING THE VALUE Turn the DOMESTIC HOT WATER knob C Il valore lampeggia sul display CONFIRM SELECTION Confirm the parameter to be edited by pressing the unblock key CONFIRM...

Page 43: ...qualified personnel in compliance with the standards and regulations in force The manufacturer cannot be held liable for any damage resulting from a conversion operation that is incor rect or not perf...

Page 44: ...mplete fill in the information required on the label supplied in the documentation envelope and apply it next to the technical data label of the boiler 4 3 1 Ending of gas transformation Close the ele...

Page 45: ...OM 4 NO A1 4 3 21 8 76 5 9 4 A9 32 1 A2 4 32 1 76 5 A4 32 1 A3 4 32 1 6 5 1 2 A7 1 2 A5 3 4 5 6 A8 3 4 5 1 2 PK GND CASING BL PE PE TLC 4 5 WIRING DIAGRAM Practical connection board MVD MVD KEY A1 A9...

Page 46: ...lace 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 possib...

Page 47: ...sure switch 16 10 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...

Page 48: ...ode is working properly 4 11 16 PARASITE FLAME Flame detected upon ignition Check the wiring of the Ign Det electrode and remove any ox idation check for humidity be tween drain wire and ceramic if ne...

Page 49: ...49...

Page 50: ...50...

Page 51: ...51...

Page 52: ...p A www unical eu ORIGINAL INSTRUCTION 00338718EN 1 st ed 04 2024 Unical declines every responsibility for the possible inaccuracies if owed to errors of transcript or press Also reserves the right to...

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