Summary of Contents for Fondital TAHITI CONDENSING IST 03 C 298 - 02
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IST 03 C 298 - 02 TAHITI CONDENSING INSTALLATION, USE AND MAINTENANCE...
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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. The Manufacturer recommends that Customers contact authorized qualified personnel only for maintenance and repair operations.
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General information for fitters, maintenance technicians and users This INSTRUCTION MANUAL, which is an integral and indispensable part of the product, must be handed over to the user by the installer and must be kept in a safe place for future reference. The manual must accompany the boiler should it be sold or its possession transferred.
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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 fitter, it has been used before and is ready to operate correctly.
CONTENTS Warnings page 3 General information for fitters, maintenance technician and user page 4 1. User instructions page 7 1.1. Control panel page 7 1.2. LCD page 8 1.3. Boiler status - LCD activation correspondence page 9 1.4. Operating the boiler page 10 1.4.1.
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PICTURE INDEX fig. 1 - Control panel page fig. 2 - LCD page fig. 3 - Fictitious room temperature regulation page 12 fig. 4 - Filling tap for models KR and KC page 13 fig. 5 - Filling tap for model KRB page 13 fig.
USER INSTRUCTIONS 1.1. Control panel fig. 1 1. Liquid crystal display (LCD) The LCD displays the boiler status and operating data (see fig. 2). 2. Boiler function selector With the selector on RESET , the boiler restarts after activation of the burner shutdown device. With the selector on OFF, the boiler is in stand-by mode, with the heating and hot water functions disabled.
1.2. fig. 2 a. DHW indicator This comes on when the boiler is in DHW mode. It flashes when the DHW temperature is being regulated via regulator 3 (fig. 1). b. Water heater on indicator This indicator comes on when the water heater (optiona) is activated via regulator 3 (fig. 1). c.
1.3. BOILER STATUS – LCD ACTIVATION CORRESPONDENCE Normal operation Boiler selector on OFF Boiler selector on ANTI-FREEZE Boiler selector on SUMMER or WINTER No function active The flow water temperature is displayed Boiler selector on SUMMER or WINTER DHW system enabled (KC model only) The flow water temperature is displayed Boiler selector on WINTER CH function active...
1.4. Operating the boiler 1.4.1. 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; the LCD shows and indicates the active function (see tables 1 and 2); •...
WARNING In KC model, a special adjusting device is installed, which limits domestic hot water flow rate to 13 liter per minute (KC 24), 14 liter per minute (for model KC 28) and 16 liter per minute (KC 32). Domestic hot water temperature supplied depends on no. 3 adjusting device, on the quantity requested by the user and on water mains supply temperature, according to the following formula: l = DHW liter per min.
1.4.5. PUMP AND VALVE ANTI-SHUTDOWN function If the boiler remains inactive and: - selector 2 is not in the OFF position, - the boiler is still connected to the mains supply, the pump and the switching valve activate briefly every 24 hours to keep them efficient. 1.4.6.
1.5. Boiler shutdown The boiler shuts down automatically if a malfunction occurs. Refer to Tables 1 and 2 to identify the boiler operating mode. Refer to Table 2 and section 6 to identify possible causes of the shutdown. The troubleshooting section is at the end of this manual. Below is a list of kinds of shutdown and the procedure to follow in each.
1.5.5. Shutdown for fan malfunction The fan work is constantly monitored and in case of malfunction it goes off; the boiler shutdown symbol displayed and code E17 flashes. This mode is maintained until the fan recovers normal working parameters. If the boiler should not start and remain in this mode, contact an Authorised Service Centre or a qualified service engineer.
Technical features and dimensions 2.1. Technical features The boiler is equipped with a fully pre-mixed gas burner. The following models are available: condensing boiler with sealed chamber and forced draught, supplying CH water and instant DHW; condensing boiler with sealed chamber and forced draught, supplying CH water; KRB: condensing boiler, forced draught and sealed chamber, with production of hot water for CH system;...
2.2. Dimensions View from the bottom of models KC and KR Condensate drain Water mains intake (KC and KR) Secondary return from the boiler (only KRB model) Gas intake Inspection trap plug CH system flow DHW flow (KC model only) 3-bar safety valve drain cock Filling tap CH system return...
2.3. Hydraulic layouts Model KC 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 Combustion air intake system Flue gas discharge system Flue gas analysis ports Flue gas thermostat on discharge duct Flue gas thermostat on exchanger Flame sensing electrode...
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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 12. Flue gas analysis ports 13.
2.4. Operating data Burner pressures must be verified after a three minute boiler operation time KC 24 Max. CH Gas mains Diaphragm Flue gas output output output Function input pressure diameter (80-60°C) (50-30°C) [kW] (kW) [mbar] [mm] [kW] [kW] Methane Gas G20 23.7 23.1 24.8...
2.5. General characteristics Models KC/KR/KRB Equipment category II2H3P II2H3P II2H3P Minimum CH system pressure Maximum CH system pressure Minimum DHW system pressure Maximum DHW system pressure DHW specific flow rate (Δt 30 °C) l/min 13.5 14.4 16.5 Electric power supply – voltage / frequency V - Hz 230 - 50 230 - 50...
Instructions for the fitter 3.1. Installation standards This is an II2H3P category boiler and must be installed in compliance with laws and standards enforced 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.
3.2.4. Installing the boiler Before connecting the boiler to CH and DHW networks, clean the pipes carefully. Prior to operate a NEW system eliminate any metallic leftover during manufacturing and welding process, and any oil or grease deposits, which might reach the boiler and damage it or alter its operation. Prior to operate a MODERNIZED system (addition of radiators, boiler replacement, etc.), clean it throughout so as to remove possible sludge and foreign particles.
3.2.6. Air intake / flue gas discharge system Flue gas discharge into the atmosphere must comply with applicable laws and standards in the country of installation. The boiler is equipped with safety devices checking correct flue gas exhaustion. Should an air/flue gas system malfunction occur, the safety devices shut down the boiler and the LCD will display the burner shutdown symbol and flashing E03 code.
3.2.6.1. Air/flue gas system duct configuration 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 by anti-wind gust device;...
3.2.6.2. Ø 100/60 mm and Ø 125/80 mm air/flue gas coaxial duct system The above data are referred to air intake/flue gas exhaust systems which are implemented by means of smooth, rigid manu- facturer approved and supplied pipes. Type C13 KC 28, KR 28 and KRB 28 Minimum permissible length of vertical coaxial pipes is 1 meter.
3.2.6.3. Ø 80 mm air/flue gas split duct system The above data are referred to air intake/flue gas exhaust systems which are implemented by means of smooth, rigid manufacturer approved and supplied pipes. Installation types C43 - C53 - C83 KC 24, KR 24 and KRB 24 - KC 28, KR 28 and KRB 28 - KC 32, KR 32 and KRB 32 Minimum permissible length of air intake pipe is 1 meter.
fig. 18 3.2.7.2. Measurement procedure The boiler is equipped with a tower allowing for air intake/flue gas discharge duct connection (fig. 19 and 20). The tower is designed with two pre- arranged openings directly accessing air and flue gas ducts (fig. 20). Remove cap A from the pre-arranged openings on the tower, before starting combustion checking procedure (fig.
3.2.9. Hydraulic connections Prior to installing the boiler, the hydraulic system is to be cleaned in order to remove impurities; they could be present in system components and damage the pump and the heat exchanger. CENTRAL HEATING CH flow and CH return pipes must be connected to the relevant 3/4” M and R couplings on the boiler (fig. 6 and 10). When calculating the cross section of CH system pipes, bear in mind load losses induced by radiators, thermostatic valves, radiator gate valves, and the configuration of the system itself.
3.2.11. Selecting central heating output range CH water temperature adjusting choice depends on selected operation range: - standard range: from 20°C to 78°C (from full counter-clockwise position to full clockwise position); - reduced range: from 20°C to 45°C (from full counter-clockwise position to full clockwise position). Act on thermoregulation trimmer ( in fig.
A series of parameters, called TSP, reserved to qualified personnel (tables 14 and 15), can be read and set through the remote control. TPS0 parameter sets default data table and restores all original values, cancelling all preceding modifications on single parameters. When the value of a single parameter is detected to be wrong, its value is restored from the default data table.
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fig. 22 Fig. 23 shows the curves for a fictitious temperature of 20°C. When this value is increased or decreased via regulator 4, the curves move up or down, respectively. With a temperature setting of 20°C, for example, if you select the curve corresponding to parameter 1 and the outdoor temperature is -4°C, the CH flow temperature will be 50°C.
3.3. Filling the system When all the boiler connections have been completed, the CH system can be filled with water. This must be done with caution, following these steps in sequence. • Open the air purging valve on all the radiators and check the efficiency of the automatic boiler valve. •...
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3.5 Load loss MODEL KR/KC/KRB 24 Modello KC24 / KR24 Velocità 3 Velocità 2 Velocità 1 1000 Portata (l/h) Flow rate [l/h] MODEL KR/KC/KRB 28 Flow rate [l/h] Modello KC32/KR32 MODEL KR/KC/KRB 32 Velocità 3 Velocità 2 Velocità 1 1000 Flow rate [l/h] Portata (l/h) Chart to acronyms...
3.6. Wiring diagram SE: 0SONDAES01 (for remote controls different form 0CREMOTO02-03) fig. 25...
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CHART TO FIG. 21 ACRONYMS external temperature probe “chimney sweep” function key 0SONDAES01 10k Ohm B = 3977 probe-equipped external water F2 PIA: mono-thermal heat exchanger (Option) boiler probe to be heater (remove R1) boiler connected to the boiler electronic BM120: external water heater equipped F3 RIS:...
3.7. Adapting to other gases and regulating the burner 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. If you wish to switch to another type of gas, this must be done by a qualified technician using the accessories supplied by the manufacturer.
TESTING THE BOILER 4.1. Preliminary checks Before testing the boiler, it is advisable to check that: • the installation complies with the current regulations. • The flue gas exhaust pipe and terminal must be installed as instructed. When the boiler is running, no combustion products must leak from any of the gaskets.
MAINTENANCE Maintenance and repairs must be carried out by a fully qualified technician. The user is strongly advised to have the boiler serviced and repaired by one of the Manufacturer’s fully qualified and authorised Service Centres Correct maintenance of the boiler will allow it to work efficiently, without harming the environment, and in complete safety.
TROUBLESHOOTING BOILER STATUS PROBLEM POSSIBLE 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.
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BOILER STATUS PROBLEM POSSIBLE CAUSE SOLUTION Check DHW system. System pressure or flow rate too low. Check flow meter filter. The boiler does not work in DHW DHW flow switch does not cut in mode. (KC model only). Flow switch sensors disconnected or Replace or reconnect it.
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- www.fondital.it Il produttore si riserva il diritto di apportare ai propri prodotti quelle modifiche che riterrà necessarie o utili, senza pregiudicarne le caratteristiche essenziali. Uff. Pubblicità Fondital IST 03 C 298 - 02 Maggio 2010 (02/2009)
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