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ALKON
50 c - 70 c
INSTALLATION AND SERVICING MANUAL

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Summary of Contents for Unical ALKON 50 c

  • Page 1 ALKON 50 c - 70 c INSTALLATION AND SERVICING MANUAL...
  • Page 2 http://www.unicalag.it/prodotti/professionale-300/light-commercial-alluminio/1003/alkon-50 http://www.unicalag.it/prodotti/professionale-300/light-commercial-alluminio/1004/alkon-70...
  • Page 3: Table Of Contents

    Attention: this manual contains instructions for the exclusive use of the professionally qualified installer and/or maintenance technician in compliance with current legislation. The user is NOT qualified to intervene on the boiler. The manufacturer will not be held liable in case of damage to persons, animals or objects resulting from failure to comply with the instructions contained in the manuals supplied with the boiler.
  • Page 4: Igeneral Information

    Any repairs must be performed solely by personnel authorised he instruction booklet is an integral and essential part of the by Unical AG S.p.A., using original spare parts only. Failure to product and must be kept by the user. comply with the above can compromise the safety of the appli- ance and void the warranty.
  • Page 5: Symbols Used In The Manual

    Any other use must be considered improper. For any damage resulting from improper use, UNICAL AG S.p.A. assumes no responsibility. Use according to the intended purposes also includes strict compliance with the instructions in this manual. 1.4 - INFORMATION FOR THE SYSTEM MANAGER The user must be instructed concerning the use and operation of his heating system, in particular: •...
  • Page 6: Safety Warnings

    1.5 - SAFETY wARNINGS ATTENTION! The boiler cannot be used by children. The boiler can be used by adults and only after having carefully read the user’s manual Children should be supervised to ensure that they do not play or tamper with the device. ATTENTION! The appliance must be installed, adjusted and maintained by professionally qualified personnel, in compliance with the standards and provisions in force.
  • Page 7: Technical Data Plate

    1.6 - TECHNICAL DATA PLATE The CE marking KEY: certifies the compliance of the equipment with the essential 1 = CE monitoring body safety requirements defined in the directives and applicable 2 = Type of boiler European regulations and that its functioning satisfy applicable 3 = Boiler model technical standards.
  • Page 8: Water Treatment

    1.7 - wATER TREATMENT ATTENTION! The treatment of the supply water allows to ANY DAMAGE TO THE BOILER CAUSED BY prevent inconveniences and maintain the THE FORMATION OF FOULING OR BY COR- functionality and efficiency of the generator ROSIVE wATER wILL NOT BE COVERED BY over time.
  • Page 9: Boiler Antifreeze Protection

    1.8 - BOILER ANTIFREEZE PROTECTION ANTIFROST 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 between 2 ÷ 5°C is detected, the appliance will behave as described in tab.
  • Page 10: Technical Features And Dimensions

    2.1 - TECHNICAL FEATURES Further details in the section ‘‘Technical Information’’ on the boiler page of the www.unicalag.it website 2.2 - VIEw wITH THE INDICATION OF THE MAIN COMPONENTS ALKON 50 c ALKON 70 c Scond Water deficiency pressure switch N°...
  • Page 11 ALKON 70 c Scond Vent valve Heating system G 1’’ G1 ¼’’ flow Condensation drain trap Heating system G 1’’ G1 ¼’’ E. RIL. Detection electrode return E. ACC. Ignition electrode Outlet flue inspection Scond Condensation drain Ignition Trasformer Air Suction Ø...
  • Page 12: Dimension

    2.3 - DIMENSIONS Front view Side view View from above View from below The parts shown in gray are relative to the ACS kit.
  • Page 13: Operation Data

    ONLY IF EQUIPPED WITH OPTIONAL PUMP The table provides an indication the flow the pump in function of the Dt of the primary circuit. ALKON 34,8 ALKON 50 c ALKON 70 c (ALKON 50 c Reg.34,8 Power supply in kW 35,4 49,3 68,5...
  • Page 14: Data According To The Erp Directive

    2.5 - OPERATING DATA ACCORDING TO UNI 10348 and GENERAL FEATURES For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES - CONSUMPTION refer to the paragraph ADAP- TATION TO OTHER TYPES OF GAS. ALKON 50 c (reg. 34,8) ALKON 50 c ALKON 70 c...
  • Page 15 2.5.1 - DATA ACCORDING TO ErP DIRECTIVE ALKON 50 c ALKON 50 c ALKON 70 c (reg. 34,8) Description Symbol Unità Nominal Heat Output Pnominale Seasonal space heating energy ƞ efficiency Seasonal efficiency class in heating mode For CH only and combination boilers: useful heat output...
  • Page 16: Installation Instructions

    INSTALLATION INSTRUCTIONS 3.1 - GENERAL wARNINGS ATTENTION! ATTENTION! If there is dust and/or if there are aggressive/ his boiler is intended solely for the use for corrosive vapours present in the installation which it was expressly designed. Any other room, the appliance must be protected use is to be considered improper and there- suitably and must be able to operate fore dangerous.
  • Page 17: Packaging

    Boiler support bracket danger. Unical AG S.p.A. will not be held liable for damage Condensate evacuation siphon to persons, animals or objects due to failure to comply with the instruction above.
  • Page 18: Positioning The Boiler

    3.5 - POSITIONING IN BOILER ROOM Particular importance should be given to local regulations and laws in terms of boiler room and especially the minimum distance that must be kept clear around the boiler. The installation must conform to the requirements contained in the most recent regulations and laws in terms of boiler room, installations of heating and production of hot water, ventilation, chimneys suitable to discharge the products of combustion of...
  • Page 19: Flue Gas Exhaust Pipe Connection

    3.6 - FLUE GAS EXHAUST PIPE CONNECTION FOR BOILERS wITH FORCED DRAUGHT place the flue gas pipe as well. To connect the flue gas exhaust pipe, local and na- tional standards must be observed The boiler is type approved for the exhaust configu- In the event the boiler is replaced, ALwAYS re- rations listed below: C13x...
  • Page 20 C93x Please note: These values relate to exhausts/ made by means of rigid pipes and smooth original UNICAL. Air / flue gas through concentric pipes in the boiler room and single pipes in the chimney (combustion air with counterlow in the chimney)
  • Page 21 GENERAL INFORMATION ON THE FLUE GAS EXHAUST SYSTEM COAXIAL DUCT Ø 80/125 00361255 (+) Adapter for double systems 80/125 It is recommended to only use original Unical exhaust pipes. The supplier will have no contractual or ex- tra-contractual liability for damage caused due...
  • Page 22 SISTEMA SDOPPIATO Ø 80...
  • Page 23: Connections

    Immediately open doors and windows to create air current to purify the room; Shut the gas cocks. ALKON 50 C ALKON 70 C FLOw G 1’’ G1 ¼’’ Condensation outlet, pipe to be connected to the drain-...
  • Page 24: Filling The System

    This could damage the gaskets and cause noise during operation. Unical will not be held liable for damage to persons, animals or objects due to failure to comply with the above instruction. Pressure in the mains supply must be between 0.5...
  • Page 25: Electrical Connections

    3.9 - ELECTRICAL CONNECTIONS Danger! Before performing connections or any type of operation Only a qualified technician may perform the on electrical parts, always disconnect electrical power and electrical installation. make sure that it cannot be reconnected accidentally. E8 connection eBUS (*) HSCP Heating Slave Controller Programmer connection (*) HSCP...
  • Page 26 The power cable must be replaced by Unical AG S.p.A. authorised technical staff, using original spare parts only. Failure to comply with the above can jeopardise the safety of the appliance.
  • Page 27: Commissioning

    3.10 - COMMISSIONING Commissioning must be done by professionally instruction. qualified personnel. Unical AG S.p.A. will not be Before commissioning the boiler, check that: held liable for damage to persons, animals or objects due to failure to comply with the above...
  • Page 28: Measurement Of Combustion Efficiency During Installation

    3.11 - MEASUREMENT OF COMBUSTION 3.11.2 - POSITIONING THE PROBES EFFICIENCY DURING INSTALLATION 3.11.1- ACTIVATION OF THE CALIBRATION FUNCTION To determine the combustion efficiency one must make the following measurements: ATTENTION! Function reserved for Authorised Assistance - measurement of the combustion air temperature Centres only.
  • Page 29: Burner Adjustment

    3.12 - ADJUSTING THE BURNER The following instructions are intended exclusively All boilers leave the factory already calibrated and for authorised service personnel. tested, however in the event the gas valve recali- bration are required: Remove the cap and insert the CO2 analysis probe in the flue gas sample point of the intake/exhaust terminal, see chap.
  • Page 30 (aluminium sections) are well cleaned. NOZZLES - PRESSURE - FLOw RATES TABLE Check the levels of CO2 often, especially with low flow rates. They refer to the boiler with a closed combustion chamber. ALKON 50 c (Adjusted for 34,8) Type of Supply Ø...
  • Page 31: Adaptation Of The Power To The Heating System

    Act on parameter FH to achieve the value corresponding to the mode, by decreasing the burner pressure value. desired output. Power Supply (KW) E.g. ALKON 50 c to decrease the output of the boiler to 35 kW, edit parameter FH (about 72). Es: ALKON 70 c to decrease the output of the boiler to 50 kW, edit parameter FH (about 76).
  • Page 32: Maintenance Instructions

    4.1 - INSPECTION AND MAINTENANCE INSTRUCTIONS To assure long-term functioning of your appliance and to avoid Once all maintenance operations are complete altering its approved status, only original Unical spare parts resume boiler operation. must be used. • Open the heating flow and return pipes, as well as the cold water inlet valve (if closed previously).
  • Page 33 1) Measure the Thermal Capacity using a me- It is recommended to use the products ter and compare the value with that contained purposely created by Unical (see sys- tem protection ACCESSORIES sect. in in table 3.12. The data measured indicates if the domestic price list), being careful the exchanger needs cleaning.
  • Page 34: Adaptation To The Use Of Other Gas

    4.3 - ADAPTATION TO THE USE OF OTHER GAS The boilers are produced for the type of gas specifically requested Gas Conversion upon ordering. For the conversion of the boiler from a gas to an other one it is necessary to proceed as follows: DANGER! 1.
  • Page 35: Operation Parameters Programming

    4.4 - PROGRAMMING OF THE OPERATION PARAMETERS ATTENTION! Function reserved for Authorised Assistance Centres only. The user is NOT authorised to activate the function described below. SERVICE PARAMETER Operation READING PARAMETER Press the YELLOw key to view default setting Press the YELLOw key and the LIGHT BLUE key simulta- neously to enter in the service mode SE and change value.
  • Page 36 PUMP OVERRUN - ( 2 ) CAPACITY TO FLOw-RATE RATIO - ( 5 ) Continue with the modification of parameters by pressing Continue with the modification of parameters by pressing the - (MINUS) the - (MINUS) Repeat the operations A-B-C to change value Repeat the operations A-B-C to change value VALUE VALUE...
  • Page 37 SETTING OF THE MINIMUM HEATING TEMP. ( 8 ) SETTING OF THE MINIMUM DHw TEMPERATURE (only if combined with an external storage tank) - ( 10 ) Continue with the modification of parameters by pressing Continue with the modification of parameters by pressing the - (MINUS) the - (MINUS) Repeat the operations A-B-C to change value...
  • Page 38 ATTENTION! The user is NOT authorised to activate the function de- Function reserved for Authorised Assistance scribed below. Centres only. FA Parameter Symb. Descption Enabled services: 2 = Cascade boiler 3 = Sigle boiler only heating 4 = Sigle boiler + water tank kit Water Δ-temperature protection: 0 = disabled 1÷50 = Massimo Δ-t...
  • Page 39: Wiring Diagram

    Diverter valve motor (external tank) Limit thermostat MDV kit ACS Diverter valve motor DHW kit Smoke Thermostat (Predisposition) P(F) Pump (ALKON 50 c - NOT AVAIBLE) Gas Valve PDPS Pressure switch DHW Modulating fan PF min_max Flue gas pressure switch (min. max)
  • Page 40 Diverter valve motor (external tank) Gas Valve MDV kit ACS Diverter valve motor DHW kit Modulating fan P(F) Pump On/off TA connection terminals (ALKON 50 c - NOT AVAIBLE) PDPS Pressure switch DHW PF min_max Flue gas pressure switch (min. max)
  • Page 41: Error Codes

    4.6 - ERROR CODES DIsplay Controller E8 (Optional) For error codes relating to the heating system, refer to the Control panel section “Faults Finding” in Instructions for use supplied with When indicator fault light, the contoller E8. press the LIGHT BLUE key to view the error code on the display.
  • Page 42 FREEZING Remove power supply, close the gas valve, defrost the EXCHANGER (24) heat exchanger carefully. Is detected, the freezing of the heat exchanger. If the heating sensor detects a temperature below 2 ° C, the burner ignition is inhibited until the sensor detects a temperature higher than 5 °...
  • Page 43 Provisions for proper disposal of the product. At the end of its life cycle the product must not be disposed of as urban waste. 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 44 - export@unical-ag.com - 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.

This manual is also suitable for:

Alkon 70

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