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Summary of Contents for Fondital Tahiti Condensing 24 kW Combi (KC)
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Page 1: Use And Maintenance
IST 03 C 000- 01 TAHITI CONDENSING Gas fired wall Mounted condensing boiler Tahiti Condensing 24, 28, 32 kW Combi (KC) Tahiti Condensing 24, 28, 32 kW Regular (KR) INSTALLATION, USE AND MAINTENANCE MADE IN ITALY... -
Page 2: Natural Gas
Natural Gas Fondital Tahiti Condensing 24 kW Combi (KC) G.C.N° 47 309 01 Fondital Tahiti Condensing 28 kW Combi (KC) G.C.N° 47 309 0 Fondital Tahiti Condensing 32 kW Combi (KC) G.C.N° 47 309 03 Fondital Tahiti Condensing 24 kW Regular (KR) G.C.N°... - Page 3 Dear Customer, 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.
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Page 4: General Information For Fitters, Maintenance Technicians And Users
In the event of failure and/or malfunction, shut down the system. Do not interfere with or attempt any repairs. Call for professionally qualified technical assistance only. Fondital helpline UK 08700 34 880. Any warranty repairs to the appliance must be carried out exclusively by the manufacturer’s authorised service centre using original spare parts. -
Page 5: Product Conformity
Product conformity FONDITAL S.p.a. declare that all its products are manufactured to a high specification and in compliace with the relevant standards. All FONDITAL boilers are CE certified and possess technical and functional characteristics that comply with the following standards: UNI EN 97 for GAS-FIRED CENTRAL HEATING BOILERS TYPE B OF NOMINAL HEAT INPUT ≤... -
Page 6: Table Of Contents
CONTEST 1. General information for fitters, maintenance technicians and users pag. 1.1. General warnings pag. 1.. Product conformity pag. 2. Instructions for the user pag. .1 Control panel pag. . LCD pag. .3 BOILER STATUS - LCD ACTIVATION CORRESPONDENCE pag. .4 Operating the boiler pag. -
Page 7: Instructions For The User
2. Instructions for the user Fondital is a licensed member of the Benchmark Scheme which aims to improve the standards of installation and commissioning of domestic heating and hot water systems in the UK and to encourage regular servicing to optimise safety, efficiency and performance. - Page 8 Using the three position switch the timer will allow either constant operation, timed operation or central heating off. Move the switch bot- tom by sliding to the desired position. The time clock is provided with 7 switches, each of which cover a time interval of 0 minutes (three per hour). Tapped position When a rider is switched from the outside (on setting) to the inside of the clock border (off setting), the circuit is open (switch off) for a period of 0 minutes and then the boiler stops.
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Page 9: Boiler Status - Lcd Activation Correspondence
BOILER STATUS – LCD ACTIVATION CORRESPONDENCE Normal boiler operation Boiler selector on OFF Boiler selector on ANTI-FREEZE Boiler selector on SUMMER or WINTER No function active The boiler water temperature is displayed Boiler selector on SUMMER or WINTER DHW enabled (mod. KC only) The boiler water temperature is displayed Boiler selector on WINTER CH function active... -
Page 10: Operating The Boiler
Operating the boiler 2.4.1 Switching on The following procedure is to be implemented only after the boiler is installed and tested by a qualified fitter. Open the gas stop cock; turn ON the power switch external to the boiler: LCD shows the current active function (see tables 1 and ); select boiler operation mode via no. -
Page 11: Anti-Freeze Function
WARNING In KC model, a special adjusting device is installed, which limits domestic hot water flow rate to 13 liter per minute (KC 24), to 14 liters per minute (KC 28) and to 16 liter per minute (KC 32). Domestic hot water temperature supplied, depends on no. 3 DHW thermostat, on the quantity requested by the user and on water mains supply temperature. -
Page 12: External Probe Operation (Optional Equipment)
2.4.5 PUMP AND THREE-WAY VALVE ANTI-SEIZE FUNCTION Where the boiler is to remain inactive and: no. 2 selector is not set to the OFF position; boiler is not disconnected from electric main power supply; the circulation pump (KC and KR model) and three-way valve (KC model), are operated for 30 second every 4 hours in order to prevent the components from seizing. -
Page 13: Boiler Lockout
Fondital helpline Should frequent burner lockout occur, a recurrent malfunction might be present: contact the Fondital helpline UK or qualified personnel for service. -
Page 14: Shut-Down Due To Fan Malfunction
E1, storage probe (only KR model with optional external boiler and NTC temperature probe: 10 kΩ @ ß=3435): the boiler operates in CH, while DHW production is disabled. Contact the Fondital helpline UK 08700 34 88 0 or CORGI registered engineer with appropriate competence for service. 2.5.7 Flow alarm Should flow temperature rise above 85 °C, the burner is turned off. -
Page 15: Technical Characteristics And Dimensions
Technical characteristics and dimensions 3.1 Technical characteristics 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 instant DHW; KR: condensing boiler with sealed chamber and forced draught, supplying CH water. Both models are available in the following heat inputs: KC 4 and KR 4 = 3.7 kW KC 8 and KR 8 = 6. kW... -
Page 16: Dimensions
3.2. Dimensions Bottom view Top view Condensate drain Cold water inlet (KC model only) Gas intake 3-bar safety valve drain cock Inspection trap plug CH system return CH system flow Drain cock Domestic hot water draw off (KC model only) pic. -
Page 17: Layout
Layout Burner unit Primary heat exchanger Expansion vessel Detection electrode Muffler Ignition electrode Heating sensor Automatic Primary fluid air vent flow meter Safety Circulation thermostat pump Electric van Gas valve Water pressure Condensate switch drain trap 3-bar safety valve d.h.w. heat exchanger Domestic cold d.h.w. -
Page 18: Hydraulic Layouts
Hydraulic layouts Condensate drain siphon Modulating gas valve Safety thermostat CH temperature probe Modulating fan Primary fluid flow meter Primary condensing exchanger Ignition electrode Air purging device 10. Combustion air intake system 11. Flue gas discharge system 1. Flue gas thermostat on discharge duct 13. -
Page 19: Operating Data
Operating data Burner pressures must be verified after a three minute boiler operation time. KC 24 CH output Gas mains Diaphragm CH output DHW output Flue gas CO2 Max. CH input (50-30 °C) pressure Ø (80-60 °C) Function [kW] [kW] [kW] [mbar] [mm]... -
Page 20: General Characteristics
General characteristics KC model KC 24 KC 28 KC 32 Equipment category IIH3P IIH3P IIH3P Minimum CH system pressure Maximum CH system pressure Minimum DHW system pressure Maximum DHW system pressure DHW specific flow rate (ΔT 30K) l/min 13.5 14.4 16.5 Electric power supply –... - Page 21 KC 32 Max. heat output Min. heat output 30% heat output Casing heat loss with burner on Casing heat loss with burner off Chimney heat loss with burner on Flue gas system mass flow rate 15.7 Flue gas temp. – air temp °C Maximum heat output efficiency rating (Net) (60/80°C) 97.57...
- Page 22 KR 28 Max. heat output Min. heat output 30% heat output Casing heat loss with burner on Casing heat loss with burner off Chimney heat loss with burner on Flue gas system mass flow rate 13.9 Flue gas temp. – air temp °C 51. Maximum heat output efficiency rating (Net) (60/80°C)
- Page 23 KC/KR 24 model 1000 Flow rate [l/h] KC/KR 28 model Flow rate [l/h] KC/KR 32 model 1000 Flow rate [l/h] pic. 9 Speed I (min) V2 Speed II Speed III (max)
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Page 24: Instructions For The Fitter
Instructions for the fitter This is an IIH3P category boiler and must be installed in compliance with laws and standards enforced in the country of installation, which are here considered as entirely transcribed. 4.1 Reference standard In GB, the installation must be carried out by a CORGI Registered Installer. To check for authorised qualified engineers please contact CORGI 0156-37400. -
Page 25: System Details
System details 4.2.1 Central heating circuit The boiler is designed for use in a sealed central heating system in accordance with the requirements of BS 5449 and BS 6798. The system should be designed to operate with flow temperatures of up to 78 °C. When designing the system, the pump head, expansion vessel size, mean radiator temperature, ect. -
Page 26: Site Requirements
Site requirements 4.3.1 Choosing where to install the boiler The following must be taken into account when choosing where to install the boiler: Approved document L1 + L government guidelines; 4.5.1 Air intake /flue gas discharge system paragraph instructions; check the wall for sturdiness, avoiding weak areas; do not hang the boiler above any equipment which may prejudice proper operation (steam and greasy vapor emitting kitchen appliances, washing machines, etc.). - Page 27 pic. 13...
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Page 28: Boiler Room Ventilation
4.3.3. Boiler room ventilation The boiler has sealed combustion chamber. Combustion air is not drawn from boiler room therefore specific recommendations need not to be applied concerning the boiler room or openings and ventilation provided to the boiler room. It is mandatory to install the boiler in an adequate room following laws and standards applicable in the country of installation, which are considered as fully transcribed in this manual. - Page 29 Installation (authorised personnel) 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. 4.4.1 Packaging Boiler is shipped in a sturdy cardboard box. Remove boiler from cardboard box and check its integrity. The packing materials can be recycled.
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Page 30: Hydraulic Connections
In order to install the boiler proceed as follows: affix the template (pic. 13) to the wall; drill two 1 mm Ø holes in the wall to accommodate the boiler support bracket wall plugs; arrange air intake/flue gas system path in the wall as needed; secure boiler support bracket to the wall by means of the wall plugs supplied with the boiler;... - Page 31 DOMESTIC HOT WATER (only for KC model) DHW flow and water mains inlet pipes are to be connected to the relevant 1/” CWI and DHW couplings on the boiler (pic. 5). Hardness of water supplied to the boiler may increase the plate heat exchanger cleaning/replacement frequency. All DHW circuits, connections, fittings, etc.
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Page 32: Flue Options
FAILURE TO INSTALL THE CONDENSATE DISCHARGE PIPEWORK CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE BOILER The condensate discharge pipe MUST NOT RISE at any point along its length. There MUST be a fall of AT LEAST .5° (50mm per metre) along the entire run. -
Page 33: Air/Flue Gas System Duct Configuration
Installation examples LEGENDA A Air intake - S Flue gas discharge - Condensate - Rain pic. 19 4.5.2 Air/flue gas system duct configuration Exhaust flues for gas-fired appliances are classified at European level according to the method used for drawing combustion air to and discharging exhaust fumes from the appliance. - Page 34 Type C13 Boiler intended for connection to horizontal outlet and intake ducts connected to the outside by means of coaxial or split ducts. The distance between the air intake duct and the flue gas outlet duct is to be a minimum of 50 mm, and both terminals are to be positioned within a squared area having 500 mm sides.
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Page 35: Ø 100/60 Mm Air/Flue Gas Coaxial Duct System
In order to ensure that the appliance functions correctly and efficiently, the flue connection between the boiler and the flue terminal must be made using original components specifically designed for condensing boilers. Traditional flue components cannot be used for conveying exhaust fumes from condensing boilers, nor vice versa. It is recommended that: for the exhaust discharge duct, the entire length of the flue slopes upwards towards the exterior in order to facilitate the flow of condensate back to the combustion chamber, which has been specifically designed to collect and drain the acidic condensate;... -
Page 36: Ø 80 Mm Air/Flue Gas Split Duct System
0CONDASP01 Sealing Neoprene seal Sealing Neoprene seal pic. 20 pic. 21 4.5.4 Ø 80 mm air/flue gas split duct system The below data are referred to air intake/flue gas discharge system, implemented with original, rigid and smooth ducts, delivered by the manufacturer. Installation types C43 - C53 - C83 KC 24 and KR 24 - KC 28 and KR 28 - KC 32 and KR 32 Minimum permissible length of air intake pipe is 1 meter. -
Page 37: Electrical Supply Connection
4.5.5 Electrical supply connection The boiler is supplied with a three-poled power cable, already connected to the electronic board and it is provided with an anti-rupture firming clamp. The boiler is to be connected to a 30V~50Hz electrical power supply. When connecting the boiler to power mains, follow correct phase/neutral polarity sequence. -
Page 38: Room Thermostat Connection (Optional Equipment)
4.5.7 Room thermostat connection (optional equipment) The boiler can be connected to a room thermostat (not supplied with the boiler). Room thermostat contacts are to be connected to M9 position of the boiler printed circuit board (pic. 4), after removal of the jumper which is delivered as standard fitting to the boiler. - Page 39 External temperature probe connection is to be performed by means of a double insulated wire, its minimum cross-section is to be 0.35 sq.mm. External temperature probe is to be connected to M8 position of the boiler printed circuit board (pic. 6). External temperature probe wiring is NOT to be grouped together with power mains supply cables.
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Page 40: Loading The System
Outdoor temperature [ °C] pic. 28 4.5.9 Loading the system Once all boiler connections have been completed, CH system can be filled. This procedure is to be cautiously carried out, following each below indicated step: Open the air purging valves on all radiators and verify the boiler automatic valve operation. Gradually open the filling loop to fill the system up, checking that all automatic air purging valves installed in the system properly work. -
Page 41: Commissioning
Commissioning Commissioning the boiler It is recommended to carry out the following: reference should be made to BS 5449 Section 5 when commissioning the boiler; open the mains water supply to the boiler; open all hot water taps to purge the DHW system; ensure that the filling loop is connected and open, then open the heating flow and return valves on the boiler;... -
Page 42: Maintenance
6.2 Boiler inspection Maintenance and repair procedures are strictly to be carried out by professionally qualified personnel. The manufacturer recommends Customers to contact the Fondital Helpline UK for all maintenance and repairs, which are best trained for the purpose. Appropriate heating unit maintenance ensures efficient operation, environment preservation, and safety for people, animals and objects. -
Page 43: Testing Combustion Efficiency
Testing combustion efficiency 6.4.1 “Chimney sweep” function The boiler is equipped with “chimney sweep” function, to be used when testing combustion efficiency, and in order to adjust the burner. To activate this function, it is necessary to open the front section of the casing for access to the controls. -
Page 44: Wiring Diagram
Wiring diagram pic. 32... - Page 45 Chart to pic. 32 acronyms TIMER: CH electromechanical day timer CONNECTIONS TO BE PERFORMED BY 0SCHEMOD15: BOILER EL. BOARD SS: DHW probe 10k Ohm B = 3435 three QUALIFIED PERSONNEL : 0SCHELCD00: LCD EL.BOARD meter max length F2PIA: mono-thermal heat exchanger CM1 - CM2: boiler type selection jumpers 1) ROOM THERMOSTAT –...
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Page 46: Spare Part List
Spare part list KC model pic. 33... - Page 47 KR model pic. 34...
- Page 48 Item Code Description No. of pieces per pack 6SCAMCON00 Heat exchanger condensing 4 kW 6SCAMCON0 Heat exchanger condensing 8 kW 6SCAMCON01 Heat exchanger condensing 3 kW 6ISOLSET00 Isolation for exchanger separetor 6ISOLBRU00 Burner holder insulation 6BRUMMET06 Condensing burner 4 kW 6BRUMMET07 Condensing burner 8-3 kW 6GUARBRU00...
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Page 49: Troubleshooting
Troubleshooting BOILER STATUS MALFUNCTION PROBABLE CAUSE SOLUTION Check gas pressure. Check that the gas valve opens or Gas supply failure. whether any system safety valves have cut in. Burner does not ignite. Gas valve disconnected Reconnect it. Gas valve faulty. Replace it. - Page 50 BOILER STATUS MALFUNCTION PROBABLE CAUSE SOLUTION DHW probe disconnected. Reconnect it. DHW not working. The boiler does not work in DHW Model KC mode, the symbol is displayed and code E06 flashes. Operation is resumed automatically DHW probe faulty. Replace it. when the cause of shutdown has been removed.
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Page 51: Gas Boiler System Commissioning Checklist
GAS Boiler SyStem CommiSSioNiNG CHeCKliSt This Commissioning Checklist is to be completed in full by the competent person who commissioned the boiler as a means of demonstrating compliance with the appropriate Building Regulations and then handed to the customer to keep for future reference. Failure to install and commission this equipment to the manufacturer’s instructions may invalidate the warranty but does not affect statutory rights. -
Page 52: Service Record
SERVICE RECORD It is recommended that your heating system is serviced regularly and that the appropriate Service Record is completed. Service Provider Before completing the appropriate Service Record below, please ensure you have carried out the service as described in the manufacturer’s instructions. - Page 56 - www.fondital.it The manufacturer reserves the right to implement any necessary and/or useful variation to products, without modifying fundamental characteristics. Uff. Pubblicità Fondital IST 03 C xxx - 01 Gennaio 2008 (01/2008) Fondital UK Helpline 08700 34 88 20...
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