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Summary of Contents for Fondital ITACA KB 24
- Page 1 ITACA KB 24 - 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; •...
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Page 3: General Notes For Installers, Maintenance Technicians, And Users
General notes for installing and 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 boiler 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. -
Page 5: Table Of Contents
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 1.2. Interpreting BOILER STATUS from LCD DISPLAY INDICATIONS ............................page 1.3. - Page 6 4. Testing the boiler ..................................... page 54 4.1. Preliminary checks ............................................ page 54 4.2. Switching on and switching off ......................................page 54 5. Maintenance ......................................page 55 5.1. Maintenance schedule ..........................................page 55 5.2. Combustion analysis ..........................................page 55 6. Troubleshooting ...................................... page 56 FIGURE INDEX fig.
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Page 7: Instructions For The User
INSTRUCTIONS FOR THE USER 1.1. Control panel fig. 1 A. Temperature selection (day/night) and recall information. B. Weekly programme for temperature zones and manual programme selection. C. Time and ambient temperature setting. D. DHW setting. E. Hot water for heating purposes and parameter setting. F. - Page 8 SYMBOL STEADY FLASHING Indication of "parameter" inside the parameter menu Automatic filling active Indication of the temperatures and values of fault and shutdown parameters Displaying of the CH temperature A CH request is present set-point Displaying of the DHW temperature A DHW request is present setpoint Display of DHW "comfort"...
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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 mode or CH ONLY No active function The flow temperature and the heating system pressure are displayed SUMMER WINTER CENTRAL HEATING 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 Flue probe failure Too high system pressure Water heater probe failure Return probe failure Remote Control connection failure (only shown 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 Zone configuration error (remote control and ambient thermostat) Ambient probe 1 failure Ambient probe 2 failure Pressure transducer failure External probe with connected ambient probe error Communication error between main board and interface board Shut-down due to safety circuit hardware fault Incompatibility between boiler board and interface board Offset error ∆T max Flow or return probe >...
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Page 12: Comfort" Enable/Disable Function
1.3. "Comfort" enable/disable function This function always keeps the water heater warm, without considering the programming of water heater heating time (par. 1.10). When the "COMFORT" icon (6, fig. 1) is on, the function is enabled. When it is off the function is disabled and the boiler carries out the hour programming of the water heater (par. -
Page 13: 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"... -
Page 14: Adjusting Heating And Dhw Temperature
1.5. Adjusting heating and DHW temperature Press the "DHW + and-" button (D, fig. 1) to select the desired domestic hot water temperature. During selection, DHW icon (6, fig. 1) will flash. As soon as button is released, icon will continue flashing for approx. 3 seconds, and temperature value will flash as well. After this time, value is stored and display standard operation will be restored. -
Page 15: Time Setting
1.6. Time setting 1- To set time, minutes and day 2- Flashing values can be of the week, press “set”. edited by pressing “CH + and -” buttons. Press "ok" to confirm the edited value and shift to next parameter, press "reset"... -
Page 16: Day Temperature" And "Night Temperature" Setting
1.7. "Day temperature" and "night temperature" setting When one or more ambient probes are connected to boiler electronic 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 17: 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. Boiler, on the other side, is heated according to the specific programme. 1- Press “prog”... -
Page 18: Programming Mode For Ch And Water Heater
1.10. Programming mode for CH and water heater 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"... -
Page 19: 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). -
Page 20: 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 key, 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 back-lighting will be on. -
Page 21: 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”... -
Page 22: Freeze-Protection Function
1.14.5. Freeze-protection function This boiler is fitted with a freeze protection system, which works when the following functions are activated: OFF/SUMMER/WINTER/CH ONLY. The freeze protection function only protects the boiler, not the whole heating system. Ambient probes or a room thermostat must be used to provide freeze protection for the central heating system. Bear in mind, however, that they are disabled when the boiler is in OFF operating mode. -
Page 23: Operation With (Optional) Remote Control
Operation with (optional) remote control 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: - boiler status;... -
Page 24: Shut-Down For Fan Malfunction
FILLER COCK fig. 2 1.15.4. 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. -
Page 25: Technical Features And Dimensions
TECHNICAL FEATURES AND DIMENSIONS 2.1. Technical features The boiler is equipped with a fully pre-mixed gas burner. The following model is available: - KB: condensing boiler with sealed chamber and forced draught, supplying CH water and DHW through integrated water heater. The following power rates are available: - KB 24: with heat input of 23.7 kW - KB 32: with heat input of 30.4 kW... -
Page 26: Dimensions
2.2. Dimensions 61 88 CH system flow (3/4”) Cold water inlet (1/2”) Gas inlet (1/2”) DHW outlet (1/2”) CH system return (3/4”) DHW recirculation inlet (1/2") Filler cock DHW drain cock CH drain cock Condensate and safety valves drains fig. 3... -
Page 27: Key Components
2.3. Key components Condensate trap inspection cap 15. Flue gas temperature probe on exchanger Deviating valve motor 16. Magnesium anode Gas valve 17. Coil bleed valve Pressure transducer 18. Ignition/flame detection electrode CH safety valve 19. CH expansion vessel DHW expansion vessel 20. -
Page 28: Hydraulic Layout
2.4. Hydraulic layout 25 26 fig. 5 Condensate trap 7-bar DHW safety valve Modulation gas valve 3-bar CH safety valve Flow temperature sensors Pressure transducer Modulating fan Circulation pump Primary condensing exchanger CH drain cock Air-purging device Water heater drain cock Air intake duct CH filler cock Flue gas venting duct... -
Page 29: Operating Data
2.5. Operating data Burner pressures reported in the following page must be verified after the boiler has been operating for 3 minutes. KB 24 Gas mains Diaphragm Flue gas heat output heat output DHW heat output max. Nozzle Type of gas pressure diameter value... - Page 30 KB 24 Max. output Min. output 30% load Casing heat loss with burner on 0.97 6.49 Casing heat loss with burner off 0.28 Flue system heat loss with burner on 2.62 2.09 Flue system mass capacity 12.43 1.33 Flue gas temp. – air temp. °C Heat output efficiency rating (60/80°C) 96.2...
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Page 31: Instructions For The Installer
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. - Page 32 fig. 6...
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Page 33: 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. -
Page 34: 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 35: 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;... -
Page 36: Ø 100/60 Mm And Ø 125/80 Mm Air/Flue Gas Coaxial Duct System
3.2.6.2. Ø 100/60 mm and Ø 125/80 mm air/flue gas coaxial duct system 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. Type C13 Type C33 KB 24 KB 24 Minimum permissible length of horizontal coaxial pipes is 1 meter... -
Page 37: Air Intake And Flue Gas Venting Via 80 Mm Split Pipes
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 KB 24 Minimum permissible length of air intake pipe is 1 meter. -
Page 38: Checking Combustion Efficiency
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 it keep it pressed for about three seconds. If the "reset"... -
Page 39: 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. Remember that before operating an indoor gas distribution system and before connecting it to a meter, it must be checked for leaks. -
Page 40: 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 it to power mains, follow correct phase / neutral polarity sequence. -
Page 41: 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;... - Page 42 1- With installed external probe, press 2- After this time, value is stored and “CH + and -” buttons (E, fig. 1) to set display standard operation will be calculated ambient temperature. restored. As soon as "calculated ambient temperature" button is released, “calculated ambient temperature”...
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Page 43: Tsp Parameters That Can Be Set From Interface And Remote Control
3.2.15. TSP parameters that can be set from interface or Remote Control Parameter Settable values Default values Notes P0 - TSP0 According to the 1 = 24 kW methane gas; 3 = 24 kW propane gas; 1, 3, 6, 7 Boiler power selection model 6 = 32 kW methane gas;... - Page 44 0.0 ÷ 1.0 °C 0.0 °C only with connected ambient probe SA1 ambient probe triggering differential OFF -1.0 ÷ -0.1 °C -0.5 °C only with connected ambient probe SA1 ambient probe triggering differential ON -5.0 ÷ 5.0 °C 0.0 °C only with connected ambient probe Ambient probe SA1 correction range 0.0 ÷...
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Page 45: 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 46: Available Head To The System
3.5. Available head to the system Speed I Speed II Speed III Flow rate [l/h] Speed I Speed II Speed III Flow rate [l/h] fig. 17... -
Page 47: Wiring Diagram
3.6. Wiring diagram 0CREMOTO04 ALARM SEXT SBS SCS SA1 SA2 PSOL bn bn wh wh pk pk rd rd bu bu bk bk wh bk Conn_D Conn_F SF SR1 SR2 CN_J Conn_E CN_C CN_C CN_E CN_E Conn_C CN_H CN_B CN_B Conn_B CN_J CN_A... -
Page 48: Multifunction Relay Wiring Diagram
0CREMOTO04 ALARM SEXT SBS SCS SA1 SA2 PSOL bn bn wh wh pk pk rd rd bu bu bk bk wh bk Internal connections: ANALOGUE WATER TRANSDUCER DHW NTC PROBE 10 K Ohm at 25°C B=3435 SRT: RETURN NTC PROBE 10 K Ohm at 25°C B=3435 SR1-SR2: CH NTC PROBE 10 K Ohm at 25°C B=3435 FLUE GAS PROBE... -
Page 49: Multifunction Relay Setting Diagrams
3.6.2. Multifunction relay setting diagrams 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 50 Relay with alarm alert (P17=0) Remote control or boiler interface (not both) fig. 24 DIAGRAM PARAMETER SETTING 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...
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Page 51: 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. -
Page 52: Gas Valve Setting
Gas pipe Air intake pipe Mixer Gas valve fig. 25 fig. 26 Gas fitting O-ring Retaining screws Venturi to mixer retaining screws Direction tab Nozzles fig. 27 fig. 28 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 53 fig. 29 FLUE CO RATE Fuel rate (%) 24 kW Methane gas 9.0 - 9.3 24 kW Propane gas 10.0 32 kW Methane gas 9.0 - 9.3 32 kW Propane gas 10.0 Table 13 - CO rates DIAMETER OF NOZZLES / DIAPHRAGMS (mm) Methane gas Propane gas 24 kW...
- Page 54 TESTING THE BOILER 4.1. Preliminary checks Before testing the boiler, it is recommended to check the following: -the flue gas venting duct and the relative terminal are installed in conformity with the instructions: with the boiler operating there must be no leakage of combustion by-products from any of the gaskets;...
- Page 55 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.
- Page 56 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. Replace it.
- Page 57 BOILER STATUS MALFUNCTION PROBABLE CAUSE SOLUTION Mixer valve is faulty. Replace it. Safety thermostat protecting the E35** mixed 'zone 2' triggering (with zone kit Thermostat is disconnected. Reconnect it. installed, only) Thermostat is faulty Replace it. Probe is disconnected. Reconnect it. Flow probe failure on one of the E36** installed zones.
- Page 60 Tel. +39 0365/878.31 - Fax +39 0365/878.304 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 630 - 03 Luglio 2018 (07/2018)
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