Fondital ITACA KC 12 Installation, Use And Maintenance Manual
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Fondital ITACA KC 12 Installation, Use And Maintenance Manual

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ITACA
KC 12 - 24 - 28 - 32
KR 12 - 24 - 28 - 32
KRB 12 - 24 - 28 - 32
InSTallaTIon, uSe and maInTenanCe
EN

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Summary of Contents for Fondital ITACA KC 12

  • Page 1 ITACA KC 12 - 24 - 28 - 32 KR 12 - 24 - 28 - 32 KRB 12 - 24 - 28 - 32 InSTallaTIon, uSe and maInTenanCe...
  • Page 2 Dear Sirs, Thank You for choosing and buying one of our boilers. Please read these instructions carefully in order to properly install, operate, and maintain the equipment. We inform users that: • boilers shall be installed by an authorised company in full compliance with the prevailing standards; • the installing company is required by law to issue a declaration of conformity with the current Standards concerning the performed installation;...

  • Page 3: General Notes For Installers, Maintenance Technicians, And Users

    General notes for installers, maintenance technicians, and users This instruction manual is an integral and essential part of the product. It shall be supplied by the installer to the user who shall keep it carefully to consult it whenever necessary. This document shall be supplied together with the equipment in case the latter is sold or transferred to others.

  • Page 4: Rapid Operating Instructions

    RaPId oPeRaTInG InSTRuCTIonS The following instructions will help you to switch the boiler on quickly and regulate it for immediate use. It is presumed that the boiler has been installed by a qualified installer, it has been commissioned and is ready to operate correctly. If any accessories have been fitted on the boiler, these instructions will not cover them. You will therefore have to refer to the full boiler instructions as well as to the specific instructions for the accessories. This manual contains full details of how the boiler works, and full operating and safety instructions. 1.

  • Page 5: Table Of Contents

    TaBle oF ConTenTS Warnings General notes for installers, maintenance technicians, and users ..............................page 3 Rapid operating instructions ..............................................page 4 1. Instructions for the user ..............................................page 7 1.1. Control panel ..................................................page 7 1.2. Interpreting BOILER STATUS from LCD DISPLAY INDICATIONS ...............................page 9 1.3.
  • Page 6 3.6.7. Collector heat transfer function ..........................................page 59 3.6.8. Boiler cooling function ............................................page 59 3.6.9. Solar mode operation and failure signal ......................................page 59 3.6.10. Natural circulation solar system with combi boiler wiring diagram ...........................page 60 3.6.11. Multifunction relay setting diagrams - KC and KRB models ..............................page 61 3.7.

  • Page 7: Instructions For The User

    1. INSTRuCTIoNS foR THe uSeR 1.1. Control panel H fig. 1 A.Temperature selection (day/night) and information recalling B. Weekly programme for temperature zones and manual programme selection C. Time and ambient temperature setting D. DHW setting e. CH water and parameter setting f. Alarm reset and back to the starting page during parameter selection G.
  • Page 8 SYMBoL PeRMANeNTLY oN fLASHING Indication of "parameter" inside the parameter menu Displaying of the number of parameters, or of the system pressure, or of the burner power percentage (fan rpm) Automatic filling active Indication of the temperatures and values of fault and shut-down parameters Displaying of the CH temperature A heating request is present set-point...

  • Page 9: Interpreting Boiler Status From Lcd Display Indications

    1.2. Interpreting BoILeR STATuS from LCD DISPLAY INDICATIoNS normal operation Boiler switch in oFF mode Boiler switch in SuMMeR or WINTeR or CH oNLY mode no active function The flow temperature and the heating system pressure are displayed. SummeR WInTeR CH oNLY Boiler switch in SummeR or WInTeR mode DHW function active DHW temperature displayed Only for KC models SummeR WInTeR Boiler switch in WINTeR or CH oNLY mode CH function active The flow water temperature is displayed WInTeR CH oNLY Boiler switch in SummeR or WInTeR mode...
  • Page 10 malfunction no flame Triggering of double flow probe Triggering of flue gas thermostat Insufficient system pressure Flow probe failure DHW probe failure (KC) Flue probe failure Automatic filling failure Too high system pressure external cylinder probe (KR or KRB) or domestic cold water inlet probe (KC) failure Return probe failure Solar collector probe failure (SCS) Solar valve probe failure (SVS) Solar water cylinder probe failure (SBS) Remote Control connection failure (only shows on Remote Control panel) Triggering of safety thermostat in mixed zone 2 Flow probe failure in mixed zone 2 Flow probe failure in mixed zone 3...
  • Page 11 Flow probe failure in mixed zone 4 Fan failure Communication failure between peripheral devices (zone boards, solar plant) Hydraulic configuration not allowed Zone configuration error (Remote Control and ambient thermostat) ambient probe 1 failure ambient probe 2 failure Pressure transducer failure external probe error (with connected ambient probe) Communication error between main board and interface board Safety system hardware malfunction Incompatibility between boiler main board and interface board offset error ∆T max Flow or return probe >...
  • Page 12 Max. number of reset attempts from touch screen reached Max. number of reset attempts from Remote Control reached (optional, if connected) Table 2 - BOILER STATUS - LCD indications in the event of malfunction...

  • Page 13: Comfort Enable/Disable

    1.3. CoMfoRT enable/disable This function keeps the plate heat exchanger hot, to minimise the waiting time for the production of DHW. When the "comfort" icon (7, fig. 1) is on, the function is enabled. When it is off the function is disabled and the boiler is in standard DHW operating mode for an instant boiler. For CH only KRB models the "comfort"...

  • Page 14: Selecting The Operating Mode

    1.4. Selecting the operating mode Whenever button is pressed, the "SUMMER”, ,“WINTER” , “CH ONLY” , “OFF” modes are enabled in sequence. At this stage, all buttons are enabled. When the "SUMMER" mode is enabled, only the DHW production function is active. When the "CH ONLY" mode is enabled, only the heating water production function is active. When the "WINTER"...

  • Page 15: Adjusting Heating And Dhw Temperature

    1.5. Adjusting heating and DHW temperature Press the “DHW +/- ” button (d, fig. 1) to select the domestic hot water set-point. During selection, icon DHW (6, fig. 1) will flash. As soon as button is released, icon DHW (6, fig. 1) will continue flashing for approx. 3 seconds, and set-point value will flash as well. After this time, value is stored and display standard operation will be restored.

  • Page 16: Time Setting

    1.6. Time setting 1- To set time, minutes and 2- Flashing values can be day of the week, press “set”. edited by pressing “CH +/- ” buttons. Press "ok" to confirm the edited value and shift to next parameter, press "reset" to quit the function and go back to starting page.

  • Page 17: Day Temperature" And "Night Temperature" Setting

    1.7. "Day temperature" and "night temperature" setting When one or more ambient probes are connected to boiler board, two levels of desired ambient temperatures can be set. Boiler will manage the heating request based on the set temperatures, as follows. If no ambient probe is connected to the boiler, temperatures cannot be set. "Day"...

  • Page 18: Manual Programme Setting

    1.8. "Manual" programme setting The "manual" mode selection indicated with symbol , allows activating the heating function, 24 hours a day, in both zones at the "day temperature", disabling at the same time zone 1 and zone 2 programming. External water cylinder, on the other side, is heated according to the specific programme.

  • Page 19: Heating Programme Mode

    1.10. Heating programme mode To access zone 1 heating programme displaying or editing, press "prog" button twice. 1- The display shows zone 2- Press “ok” to access zone 1 symbol flashing, sun or programming function. moon symbols, bars on or "Prog" wording starts off, respectively , at 00:00.

  • Page 20: Parameter Display

    1.11. Parameter display Press “Info” (a fig.1) to scroll the different parameter values. You can quit this function at any time by simply pressing the "Reset" button. Paragraph 3.2.15 describes the meaning of all parameters. PaRameTeRS deSCRIPTIon P30 - TSP30 external temperature displaying (if an external probe is present). Flow temperature displaying.

  • Page 21: Failures That Cannot Be Reset

    1.12. failures that cannot be reset The display shows the failure based on the corresponding error code (see paragraph 1.2.). Some failures can be reset through the "reset" button, while some others are self-resettable. Refer to the following paragraph (“Resume boiler function”). If failures cannot be reset but are of the self-resettable type, no key will be enabled and only the LCD backlighting will be on. As soon as the error cause is eliminated, the failure signal will disappear from the interface, this latter will be enabled and, 15 seconds after no key is touched, all the keys but the one around the LCD will be disabled.

  • Page 22: Boiler Operation

    1.14. Boiler operation 1.14.1. Switching on It is presumed that the boiler has been installed by a qualified installer, it has been commissioned and is ready to operate correctly. - Open the gas stop cock; - turn the master switch installed ahead of the boiler ON. The display turns on and indicates the function currently active (see tables 1 and 2); - select boiler operating mode pressing “Operating mode selection” button on the touch-screen (H fig.1): OFF, SUMMER, WINTER, CH ONLY (paragraph 1.4);...

  • Page 23: Comfort Function

    With KC model, available DHW litres per minute depend on boiler heat output and water mains supply temperature, according to the following formula: l = DHW litre per min. = -------- ΔT where K is: - 264 in KC 12 model - 402 in KC 24 model - 465 in KC 28 model - 489 in KC 32 model...

  • Page 24: Pump And Other Component Anti-Seize Function

    Boiler interface includes all the possible functions of a Fondital Remote Control, and can control up to two heating zones. User can also connect the boiler to a Remote Control (optional - not compulsory, supplied by the manufacturer) so as to manage several boiler parameters, such as:...

  • Page 25: Shut-Down Due To Low Water Pressure

    1.15.3. Shut-down due to low water pressure AuToMATIC fILLING eNABLeD (P94 = 1) If system pressure goes below 0.4 bar (safety When automatic filling is activated, water pressure switch triggering), error e04 and symbol and pressure current current pressure will be displayed. All buttons are value are displayed. As soon as disabled.

  • Page 26: Shut-Down Due To Automatic Filling Failure

    Filler cock fig. 2 1.15.4. Shut-down due to automatic filling failure Error e08 indicates that the automatic filling procedure has not been successfully completed. Two cases are possible: 1 - System pressure above 0.4 bar; 2 - System pressure below 0.4 bar; SYSTeM PReSSuRe ABoVe 0.4 BAR When the "reset" button is pressed, boiler shuts down and display goes back to standard screen.

  • Page 27: Shut-Down For Fan Malfunction

    1.15.5. Shut-down for fan malfunction The fan operation is constantly monitored and in case of malfunction the burner goes off; the code e40 flashes on the display. This mode is maintained until the fan recovers normal working parameters. If the boiler does not start and remains in this mode, contact a Service Centre or a qualified service engineer. 1.15.6. Alarm due to temperature probe malfunction The following fault codes are shown on the display in the event of burner shut-down due to a temperature probe fault: - e05 for the CH probe.

  • Page 28: Technical Features And Dimensions

    2. TeCHNICAL feATuReS AND DIMeNSIoNS 2.1. Technical features The boiler is equipped with a fully pre-mixed gas burner. The following models are available: - KC: condensing boiler with sealed chamber and forced draught, supplying CH water and for instant DHW production; - KR: condensing boiler with sealed chamber and forced draught, supplying CH water only; - KRB: condensing boiler with sealed chamber and forced draught, supplying CH water only;...

  • Page 29: Dimensions

    2.2. Dimensions KC MoDeL 63 92 76 60 62 67 82 73 View from top View from bottom Cold water inlet Hot water outlet Gas inlet CH system return Trap inspection cap Filler cock CH system flow Discharge cock fig. 3...
  • Page 30 KR MoDeL 63 92 76 60 62 67 82 73 View from top View from bottom Cold water inlet CH system flow Gas inlet CH system return Trap inspection cap Discharge cock fig. 4...
  • Page 31 KRB MoDeL 63 92 76 60 62 67 82 73 View from top View from bottom Secondary return from water cylinder CH system return Gas inlet Discharge cock Trap inspection cap Secondary flow to water cylinder CH system flow fig. 5...

  • Page 32: Boiler Layouts

    2.3. Boiler layouts 1 sifone raccogli condensa 2 valvola gas modulante Condensate trap KC model Modulation gas valve 3 doppio sensore di temperatura di mandata Flow temperature twin sensor ventilatore modulante Modulating fan scambiatore primario condensante Primary condensing exchanger disareatore Deaerator condotto aspirazione aria Air intake duct condotto evacuazione fumi...
  • Page 33 KRB model Condensate trap 1 sifone raccogli condensa Modulation gas valve 2 valvola gas modulante Flow temperature twin sensor 3 doppio sensore di temperatura di mandata Modulating fan ventilatore modulante Primary condensing exchanger scambiatore primario condensante Deaerator disareatore Air intake duct condotto aspirazione aria Flue gas duct condotto evacuazione fumi...

  • Page 34: Operating Data

    2.4. operating data Burner pressures reported in the following page must be verified after the boiler has been operating for 3 minutes. ATTeNTIoN: the technical data listed below refer to gas category II2H3P with supply pressure 20 mbar for G20 and 37 mbar for G31. In case of different gas categories, please contact the manufacturer. KC 12 CH max. heat output DHW heat output Gas mains diaphragm Flue gas heat output heat nozzle Fuel type pressure diameter value (50-30°C)

  • Page 35: General Characteristics

    KR - KRB 24 diaphragm Flue gas heat output heat output max. Gas mains nozzle Fuel type diameter value (80-60°C) (50-30°C) heat input pressure [mbar] [mm/100] [mm] [kW] [kW] [kW] min. max. min. max. Natural gas G20 23.7 22.9 3.22 24.9 9 ÷ 9.3 Propane Gas G31 23.7 22.9...
  • Page 36 KC 12 - KR 12 - KRB 12 Max. output Min. output 30% load Casing heat loss with burner on 0.26 7.78 Casing heat loss with burner off 0.55 Flue system heat loss with burner on 2.64 1.92 Flue system mass capacity 8.25 0.89 Flue gas temp. – air temp. °C 57.9 34.5...

  • Page 37: Instructions For The Installer

    3. INSTRuCTIoNS foR THe INSTALLeR 3.1. Installation standards This is an II2H3P category boiler and must be installed in compliance with the laws and standards in force in the country of installation, which are herein considered as entirely transcribed. 3.2. Installation Accessories and spare parts for installation and service procedures are to be supplied by the Manufacturer. Should non original accessories and spare parts be employed, boiler proper performance is not guaranteed. 3.2.1. Packaging Boiler is shipped in a sturdy cardboard box.
  • Page 38 fig. 9...

  • Page 39: Installing The Boiler

    3.2.4. Installing the boiler Before connecting the boiler to CH and DHW networks, clean the pipes carefully. - Before commissioning a neW system, clean it to remove any metal chips due to machining and welding, and any oil and grease that might negatively affect boiler operation or even damage it in case they get inside it. - Before commissioning a ReCoNDITIoNeD system (where radiators have been added, the boiler has been replaced, etc.) thoroughly clean it to remove any sludge and residues. Clean the system using standard non acid products, available on the market. Do not use solvents as they could damage system components. furthermore, in the central heating system (either new or reconditioned), it is always advisable to add to water a suitable percentage of corrosion protectants for multi-metal systems that will create a protective film onto all internal surfaces. The manufacturer shall not be held responsible in case of damage to people, animals, or property due to failure to follow the above mentioned instructions.

  • Page 40: Air Intake And Flue Gas Venting System

    3.2.6. Air intake and flue gas venting system Flue gas discharge into the atmosphere and air intake/flue gas venting systems must comply with applicable laws and standards in the country of installation that are considered as fully transcribed herein. The boiler is equipped with safety devices checking correct flue gas exhaustion. Should an air/flue gas system malfunction occur, the safety devices will shut-down the boiler and the lCd will display the e03 code flashing.

  • Page 41: Configuration Of Air Intake And Flue Gas Venting Ducts

    3.2.6.1. Configuration of air intake and flue gas venting ducts Type B23 Boiler intended for connection to an existing flue system external to the boiler room. Combustion air is taken directly from the boiler room itself while flue gas is conveyed to the outside. The boiler is not to be fitted with anti-wind gust device; it has to be equipped with a fan mounted before the combustion chamber/heat exchanger. Type B53 Boiler intended for connection, via an independent duct, to the flue gas venting terminal.
  • Page 42 KC - KR - KRB 28 KC - KR - KRB 24 Minimum permissible length of horizontal coaxial pipes is 1 meter, Minimum permissible length of vertical coaxial pipes is 1 meter. without accounting for the first elbow connected to the boiler. Maximum permissible length of Ø 100/60 mm vertical coaxial pipes is Maximum permissible length of Ø...

  • Page 43: Air Intake And Flue Gas Venting Via 80 Mm Split Pipes

    Gasket Blanking fig. 12 fig. 11 3.2.6.3. Air intake and flue gas venting via 80 mm split pipes The information given above is with reference to air intake/flue gas venting ducts made from smooth, rigid pipes approved and supplied by the manufacturer. Installation types C43 - C53 - C83 KC - KR - KRB 12 Minimum permissible length of air intake pipe is 1 meter. Minimum permissible length of flue gas venting pipe is 1 meter.

  • Page 44: Checking Combustion Efficiency

    Blanking Gasket Gasket fig. 14 fig. 13 3.2.7. Checking combustion efficiency 3.2.7.1. flue cleaning function The boiler features a flue cleaning function which must be used to measure combustion efficiency during operation and to adjust the burner. To enable the flue cleaning function, press the "reset" key and keep it pressed for a few seconds (the countdown will be displayed). If the "reset"...

  • Page 45: Connection To Gas Mains

    3.2.8. Connection to gas mains Gas supply pipe cross-section must be equal or greater than boiler gas pipe. Cross-section gas pipe size depends on its length, layout pattern, gas flow rate. Gas pipe size is to be selected accordingly. Comply with installation standards enforced in the country where the boiler is installed which are considered as fully transcribed in this booklet.

  • Page 46: Connection To The Electrical Mains

    3.2.10. Connection to electrical mains The boiler is supplied with a three-poled power cable, already connected to the electronic board and it is provided with a safety clamp. The boiler is to be connected to a 230V-50Hz electrical power supply. When connecting the boiler to power mains, follow correct phase / neutral polarity sequence. Installation standards must be complied with and they are herein considered as entirely transcribed. An easily accessible two-poled switch, with a minimum 3 mm distance between contacts, is to be installed ahead of the boiler.

  • Page 47: Installation Of The (Optional) External Probe And Sliding Temperature Operation

    The Remote Control connector is protected against inverted polarity, and the connections may be inverted. Do not connect the Remote Control to mains electrical power 230 V ~ 50 Hz. For complete instructions on how to program the Remote Control, refer to the instruction manual included in the Remote Control kit. Board and Remote Control communicate in each operating mode: OFF, SUMMER, WINTER, CH ONLY ; boiler display layout corresponds to the setting made from the Remote Control, as for the operating mode.
  • Page 48 1- With installed external probe 2- After this time, value is stored and display standard operation , press "CH +/-" buttons (e fig.1) will be restored. to set calculated ambient temperature. As soon as "ambient temperature" button is released, icon will continue flashing for approx.

  • Page 49: Tsp Parameters That Can Be Set From Interface Or Remote Control

    3.2.15. TSP parameters that can be set from interface or Remote Control Parameter Settable values default values notes 0 = 12 kW natural gas; 1 = 24 kW natural gas; 2 = 28 kW P0 - TSP0 0 ÷ 7 natural gas; 3 = 24 kW propane; 4 = 28 kW propane; 5 = 12 Boiler power selection kW propane;...
  • Page 50 Parameter Settable values default values notes only with at least one zone board connected Current zone 2 flow temperature only with at least two zone boards connected Set point of zone 3 flow temperature only with at least two zone boards connected Current zone 3 flow temperature only with three zone boards connected Set point of zone 4 flow temperature...

  • Page 51: Table 19 - General Table Of Tsp Parameters

    Parameter Settable values default values notes 0 ÷ 300 sec. 140 sec. only with zone boards connected Low temperature zone mixer valve opening time 0 ÷ 35 °C 5 °C only with zone boards connected Rise in nominal boiler temperature with zone board 0 ÷...

  • Page 52: Filling The System

    3.3. filling the system Once all boiler connections have been completed, CH system can be filled. The procedure is to be cautiously carried out, following each step: - open the air purging valves on all radiators and verify the boiler automatic valve operation; - gradually open the relevant filler cock (fig.

  • Page 53: Circulation Pump Flow Resistance

    3.5. Circulation pump available head KC/KR/KRB MoDeL 12 1000 1200 Flow rate [l/h] KC/KR/KRB MoDeL 24 1000 1000 1000 1000 1000 1000 1200 1200 1200 1200 1200 1200 Flow rate [l/h] PWM 100% PWM 100% PWM 100% PWM 100% PWM 100% PWM 100% PWM 75% PWM 75% PWM 75% PWM 75% PWM 75%...
  • Page 54 KC/KR/KRB MoDeL 28 1000 1000 1000 1000 1200 1200 1200 1200 Flow rate [l/h] Flow rate [l/h] PWM 100% PWM 100% PWM 100% PWM 75 % PWM 75 % PWM 75 % PWM 30% PWM 30% PWM 30% KC/KR/KRB MoDeL 32 1000 1200 Flow rate [l/h] Flow rate [l/h] PWM 100% PWM 75 %...

  • Page 55: Wiring Diagrams

    B=3435 X2-X7: ground connectors 17: serial input GND SF: flue NTC probe 10 kOhm at 25 °C B=3435 0CRemoTo04: opentherm Fondital Remote Control 18: serial input 485A 0SondaeS01: external probe to be used with 19: serial input 485B 0CREMOTO04 Remote Control (optional)

  • Page 56: Forced Circulation Solar System With Ch Only Boiler Wiring Diagram

    Resistenza Resistance 10KΩ 10KΩ Boiler water Connect. Solar Relay which can be freely relè liberamente External Ambient Boiler solar Ambient cylinder OT o TA1 OT or TA1 sonda collector programmed coφ=1 sonda Coll. sonda programmabile co φ 1 sonda sonda Boll. sonda Boll.

  • Page 57: Wiring Diagram Kc Model

    B=3435 X2-X7: ground connectors 19: serial input 485B SF: flue NTC probe 10 kOhm at 25 °C B=3435 0CRemoTo04: opentherm Fondital Remote Control 20: serial input +5V 0SondaeS01: external probe to be used with 21: relay neutral 0CREMOTO04 Remote Control (optional) 22: ‘normally closed’...

  • Page 58: Forced Circulation Solar System With Combi Boiler Wiring Diagram

    Boiler Connect. Solar water Relay which can be freely External Boiler solar Ambient Ambient OT or TA1 collector cylinder programmed coφ=1 probe probe probe 2 probe 1 probe probe External communication Contact Contact TA1 or Probe 10KΩ Probe Probe 10KΩ Probe 10KΩ...

  • Page 59: Solar Collector Anti-Freeze Function

    multifunction relay connecting diagram 3.6.6. Solar collector anti-freeze function Solar collector anti-freeze function is enabled by setting parameter P24 = 1. With this function, solar pump is activated as soon as solar collector probe detects a temperature of 4° C 3.6.7. Collector heat transfer function This function prevents that solar collectors in stagnation state are exposed to high thermal stresses. With the boiler in SUMMER, WINTER or CH ONLY mode, if the temperature read by solar collector probe is between 110°C and 115°C (editable with parameter P22) and the temperature measured by the solar water cylinder probe is below 93 °C, solar pump is enabled to fill water cylinder.
  • Page 60 3.6.10. Wiring diagram for natural circulation solar system with combi boiler Parameter setting ITACA ITACA KC 24-28-32 KC 12-24-28-32 EXTERNAL PROBE SONDA ESTERNA AMBIENT TERMOSTATO THERMOSTAT AMBIENTE TERMINALS 5 - 6 MORSETTI 5 - 6 TERMINALS 3 - 4 MORSETTI 3 - 4 TERMINALS 21 - 22 - 23 MORSETTI 21 - 22 - 23 VALVOLA DEVIATRICE SOLARE SOLAR DEVIATING VALVE...

  • Page 61: Multifunction Relay Setting Diagrams - Kc And Krb Models

    3.6.11. Multifunction relay setting diagrams - KC and KRB models The control panel features a multifunction relay, to be set through the parameter P17 - TSP17 Relay with Remote Control and Ta2 Relay with interface programming and Ta2 Solenoid valve with limit switch Solenoid valve with limit switch fig.
  • Page 62 Relay with alarm alert (P17=0) Remote Control or boiler interface (not both) fig. 32 DIAGRAM PARAMeTeR SeTTING (SoLAR eXCLuDeD) Error signalling relay Relay controlled by TA1 or by the Remote Control Relay controlled by TA2 or by the interface Relationship between temperature (°C) and nominal resistance (ohm) of all NTC probes. T (°C) 27203 24979 22959 21122 19451 17928 16539 15271 14113 13054 12084...

  • Page 63: Adaptation To Other Gas Types And Burner Adjustment

    3.7. Adaptation to other gas types and burner adjustment This boiler is built to run on the type of gas specified on the order, which is shown on the packaging and on the boiler rating plate. Any later transformation is to be exclusively carried out by qualified personnel, using manufacturer designed accessories and following the procedure and adjustment instructions for an accurate boiler setting-up. 3.7.1. Switching from NATuRAL GAS to PRoPANe - Disconnect the boiler from the electric power supply. - Remove boiler outer front panel; - Loosen the three screws securing combustion chamber front panel to frame, then remove panel. - Loosen the screw securing intake pipe to mixer, and remove air-intake pipe (fig. 33). - Disconnect gas pipe from mixer (fig.

  • Page 64: Gas Valve Setting

    Gas pipe air intake pipe mixer Gas valve fig. 33 fig. 34 Gas fitting o-ring Retaining screws Venturi to mixer retaining screws direction tab nozzles fig. 35 fig. 36 3.7.3. Gas Valve Setting 3.7.3.1. Maximum heating output adjustment - Make sure that the ambient thermostat (optional), if fitted, is set to ON. - Select the "heating"...
  • Page 65 fig. 37 Flue Co RaTe Fuel rate (%) 12 kW Natural gas 9.0 - 9.3 12 kW Propane 10.0 - 10.3 24 kW Natural gas 9.0 - 9.3 24 kW Propane 28 kW Natural gas 9.0 - 9.3 28 kW Propane 10 - 10.3 32 kW Natural gas 9.0 - 9.3...

  • Page 66: Testing The Boiler

    4. TeSTING THe BoILeR 4.1. Preliminary checks Before testing the boiler, it is recommended to check the following: - the boiler has been installed in compliance with laws and standards in force in the country of installation; - the flue gas venting duct and the relative terminal are installed in conformity with the instructions given in the present document: there must be no leakage of combustion by-products from any of the gaskets;...
  • Page 67 5. MAINTeNANCe Any maintenance (and repair) work must only be carried out by qualified personnel. The user is strongly advised to have the boiler serviced and repaired by a qualified Service Centre. Appropriate boiler maintenance ensures efficient operation, environment preservation, and safety for people, animals and objects. once maintenance operations are finished, refit front panel, power off and on again using the switch installed ahead of the boiler. 5.1. Maintenance schedule The boiler must be serviced at least once every year. disconnect electric power supply before starting any maintenance procedure, involving replacement of components and/or cleaning inside parts of boiler.

  • Page 68: Troubleshooting

    6. TRouBLeSHooTING BoIleR STaTuS malFunCTIon PRoBaBle CauSe SoluTIon Check gas supply. Gas supply failure. Check gas supply cock or gas network safety valve intervention. Burner does not ignite Gas valve is disconnected. Reconnect it. Gas valve is faulty. Replace it. The board is faulty.
  • Page 69 BoIleR STaTuS malFunCTIon PRoBaBle CauSe SoluTIon Probe is disconnected. Reconnect it. e15** Return probe failure. Probe is faulty. Replace it. Probe is disconnected. Reconnect it. e24** Solar collector failure. Probe is faulty. Replace it. Probe is disconnected. Reconnect it. e27** Solar valve failure.
  • Page 70 BoIleR STaTuS malFunCTIon PRoBaBle CauSe SoluTIon Pump is seized. Unseize the pump. Pump is faulty. Replace it. e86* Flow temperature increases too quickly. Bleed the air from the boiler by Air present inside heating system. opening the jollies on the exchanger and pump.
  • Page 72 Tel. +39 0365/878.31 - Fax +39 0365/878.576 e mail: info@fondital.it - www.fondital.com The manufacturer reserves the right to modify his/her products as deemed necessary, without altering the basic characteristics of the products themselves. Uff. Pubblicità Fondital IST 03 C 541 - 01 Aprile 2013 (04/2013)

This manual is also suitable for:

Itaca kr 24Itaca krb 12Itaca kc 28Itaca krb 24Itaca krb 28Itaca kc 32 ... Show all

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