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Summary of Contents for Fondital KR 55
- Page 1 IST 03 C 000 - 01 TAHITI CONDENSING KR 55 - KR 85 INSTALLATION USE AND MAINTENANCE...
- Page 2 Dear Customer, Thank you for choosing and buying one of our boilers. Please read these instructions carefully. They will enable you to install, operate, and service the equipment properly. Any maintenance and repair operations must be carried by one of our fully qualified and Authorized Service Centres.
- Page 3 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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Page 4: Table Of Contents
30 3.2.6.1. Configuration of air intake and flue gas discharge pipes pag. 31 3.2.6.2. Air intake and flue gas discharge configuration – model KR 55 pag. 32 3.2.6.3. Air intake and flue gas discharge configuration – model KR 85 pag. - Page 5 Fig. 21A - Wiring diagram for KR 55 pag. 34 Fig. 21B - Wiring diagram for KR 85 pag. 35 Fig. 22 - Adaptation to other gas types for KR 55 pag. 37 Fig. 23 - Adaptation to other gas types for KR 85 pag. 37 Fig.
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Page 6: User Instructions
1. User instructions 1.1. Control panel fig. 1 1. Liquid crystal display (LCD) The LCD displays the boiler status and operating data (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. -
Page 7: Lcd
1.2. LCD fig. 2 a. DHW indicator This indicator only activates if the boiler is connected to a separate water heater. This comes on when the boiler is in DHW mode. It flashes when the DHW temperature is being regulated via knob 3 (Fig. 1). b. -
Page 8: Boiler Status - Message Display
1.3. Boiler status – Message display 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 (*) The flow water temperature is displayed Boiler selector on WINTER CH function active... -
Page 9: Operating The Boiler
1.4. Operating the boiler 1.4.1. Switching on the boiler 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 master switch external to the boiler; the LCD shows and indicates the active function (see Table 1). - Select boiler operation mode via selector 2 (Fig. -
Page 10: Anti-Freeze Function
Regulating the DHW temperature If the water heater has an NTC probe (10 kΩ @ β=3435; refer to the water heater handbook), the temperature setting range is 35-65°C (from the fully anticlockwise to the fully clockwise position on knob 3). During temperature setting, the DHW symbol flashes on the display and the DHW temperature setting is displayed. -
Page 11: Operation With An External Probe (Optional)
Once the remote control has been installed, turn selector 2 on the boiler (Fig. 1) to WINTER. CH and DHW functions can be enabled and disabled via the remote control. Correct operation of the boiler and remote control are not guaranteed if selector 2 on the boiler is left on a position other than WINTER. -
Page 12: Boiler Shutdown
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 possible causes of the shutdown and the procedure to follow in each case. -
Page 13: Shutdown For Fan Malfunction
1.5.5. Shutdown for fan malfunction Fan operation is constantly monitored and in case of a malfunction it goes off; the boiler shutdown symbol is 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. -
Page 14: Technical Features And Dimensions
The following models are available: KR 55: condensing boiler with sealed chamber and forced draught, supplying CH water, 55kW KR 85: condensing boiler with sealed chamber and forced draught, supplying CH water, 85kW The boilers meet applicable laws in force in the country of destination, which is stated on the rating plate. -
Page 15: Dimensions Of The Kr
2.2. Dimensions of the KR 55 Aspirazione aria Aspirazione aria scarico fumi Ø 80 mm Ø 100/60 mm 43 56 View from below View from above Condensate drain Water mains intake (1/2’’) CH system flow (1’’) Gas intake (3/4’’) Filling tap Condensate trap CH system return (1’’) - Page 16 2.3. Dimensions of the KR 85 Scarico fumi Aspirazione aria Ø 100 mm Ø 80 mm 43 56 View from below View from above Condensate drain CH system flow (1’’) Water mains intake (1/2’’) Filling tap Gas intake (3/4’’) CH system return (1’’) Condensate trap fig.
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Page 17: Main Components For Kr
2.4. Main components for KR 55 1 Control panel 12 Gas valve 2 Heat exchanger 13 Safety thermostat 3 Flue gas fan 14 Circulating pump 4 Air separator 15 Deaerator on air separator 5 Deaerator on heat exchanger 16 Ignition electrode... - Page 18 2.5. Componenti principali KR 85 1 Control panel 12 Gas valve 2 Heat exchanger 13 Safety thermostat 3 Flue gas fan 14 Circulating pump 4 Air separator 15 Deaertator on air separator 5 Deaerator on heat exchanger 16 Ignition electrode 6 CH temperature probe 17 Detection electrode 7 Flue gas thermostat...
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Page 19: General Characteristics
53,5 15,7 58,8 8,8 ÷ 9,1 Propane Gas G31 55,0 14,1 53,5 15,7 58,8 9,8 ÷ 10,1 Table 3 – Calibration data for KR 55 KR 85 Max. CH Gas mains Diaphragm dia- Flue gas output output input pressure meter Function (80-60°C) -
Page 20: Pumping Head
2.8. Pumping head KR 55 Pump speed I (min) Pump speed II Pump speed III (max) fig. 10 KR 85 Pump speed I (min) Pump speed II Pump speed III (max) fig. 11... -
Page 21: Instructions For The Fitter
3. Instructions for the fitter 3.1. Installation standards This is an II2H3P category boiler and it must be installed in compliance with the laws and regulations in force in the country of installation. 3.2. Installation Accessories and spare parts for installation and service procedures must be supplied by the Manufacturer. Correct boiler performance cannot be guaranteed if non-original accessories and spare parts are used. - Page 22 Coupling Ø Coupling M = Flow 1“ G = Gas 3/4“ F = Cold water 1/2“ R = Return 1“ fig. 12...
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Page 23: Installing The Boiler
3.2.4. Installing the boiler The whole system must be cleaned thoroughly before the boiler is connected to the pipes in the central heating system,. Before starting up a NEW system, clean it thoroughly to remove any metal residues from the construction or welding process, and any oil or grease present as this could get into the boiler and damage it. -
Page 24: Air Intale And Flue Gas Discharge System
3.2.6. Air intale and flue gas discharge system Flue gas discharge into the atmosphere and air intake and flue gas discharge systems must comply with the applicable rules and regula- tions, which are intended as an integral part of this handbook. The boiler is fitted with safety devices to control emission of products of combustion. -
Page 25: Configuration Of Air Intake And Flue Gas Discharge Pipes
3.2.6.1. Configuration of air intake and flue gas discharge pipes Boilers are approved for installation according to the following types: KR 55: B23, B53, C13, C33, C43, C53, C83 KR 85: B23, B53, C43, C53, C83 Type B23 Boiler designed for connection to a flue or a combustion product discharge device outside the boiler room. -
Page 26: Air Intake And Flue Gas Discharge Configuration - Model Kr
3.2.6.2. Air intake and flue gas discharge configuration – model KR 55 These values refer to air intake and flue gas discharge systems comprised of original smooth and rigid pipes supplied by the Manufacturer. Cap and seal for the air... -
Page 27: Testing Combustion Efficiency
(Fig. 15). The chimney-sweep function operates for 15 minutes. To exit chimney-sweep mode, turn selector 2 to any position other than WINTER and then to the desired setting. KR 85 KR 55 fig. 14 fig. 15... -
Page 28: Measurement Procedure
3.2.7.2. Measurement procedure KR 55 The boiler is equipped with a tower connecting the air intake and flue gas discharge pipes (Figs. 16 and 17). The tower comes with two openings for direct access to the combustion air and flue gas pipes (Fig. 17). -
Page 29: Plumbing Connections
3.2.9. Plumbing connections Prior to installing the boiler, the plumbing system nust be cleaned thoroughly to remove impurities from the components, which could damage the pump and heat exchanger (§ 3.2.4.). CH pipes The flow and return pipes in the CH system must be connected to their respective 1” fittings (M and R) on the boiler (Figs. 6 and 7). When calculating the cross-section of CH pipes, it is important to take into account load losses due to the length of the pipe, the CH terminals and the configuration of the system. -
Page 30: Selecting The Ch Operating Range
3.2.11. Selecting the CH operating range The setting range for the CH water temperature depends on the operating range selected. - standard range: 20-78°C (from full anticlockwise to full clockwise position on knob 4); - reduced range: 20-45°C (from full anticlockwise to full clockwise position on knob 4). To select the operating range, turn the thermoregulation trimmer (Fig. -
Page 31: Connecting To The External Probe (Optional) And Sliding Temperature Operation
The remote control must not be connected to a 230 V ~ 50 Hz power supply. For instructions on how to program the remote control, refer to the booklet provided with it. The remote control can be used to read and enter a series of parameters, called TSPs, which must be done by a qualified technician (Tables 9 and 10). - Page 32 In addition, the position of the thermoregulation trimmer determines the CH operating range, according to the following values. TSP5 parameter values which select the reduced range 0 ÷ 75 Coefficients corresponding to thermoregulation curves 0,0 ÷ 0,8 TSP5 parameter values which select the standard range 76 ÷...
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Page 33: Filling The System
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 relief valve on all the radiators and check the efficiency of the automatic boiler valve. - Gradually open the boiler filling tap and check that any automatic air relief valves work efficiently. -
Page 34: Wiring Diagram
3.5. Wiring diagram fig. 21 A... - Page 35 fig. 21 B...
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Page 36: Adapting To Other Gases And Regulating The Burner
Legenda TIMER: DHW timer (remove P1 if the TIMER is mounted) be connected to the boiler board P1: TIMER jumper – DHW priority Key to symbols SS: 10K Ohm B=3435 DHW probe, max R1: 10KOhm resistance F2PIA: Mono-thermal/aquarium boiler length 3 metres REMOTE CONTROL: (optional) F3RIS: CH-only boiler TA: ambient thermostat (optional) -
Page 37: Regulating The Burner
(D in Fig. 23). - Replace the existing diaphragm with one for PROPANE (Tables 3 and 4). - Make the reconnection (A in Fig. 24 for KR 55 and D in Fig. 23 for KR 85). - Refer to § 3.6.3. -
Page 38: Testing The Boiler
4. Testing the boiler Each boiler comes with a test certificate that must be completed when testing the boiler in order to benefit of the warranty. 4.1. Preliminary checks Before testing the boiler, it is advisable to check that • the installation complies with the current regulations; •... -
Page 39: Maintenance
5. 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. 5.1. - Page 40 6. Toubleshooting BOILER STATUS PROBLEM POSSIBLE CAUSE SOLUTION Gas supply failure. Check gas pressure. Burner does not ignite. Check that the gas valve opens or whether Gas valve disconnected. any system safety valves have cut in. Gas valve faulty. Reconnect it. PCB faulty.
- Page 41 STATO DELLA CALDAIA INCONVENIENTE CAUSA POSSIBILE RIMEDIO The boiler does not work properly. Fan disconnected. Reconnect it. The symbol is displayed and code E17 flashes. Combustion fan not working. Operation is resumed automatically when the cause of shutdown has been removed. Fan faulty.
- Page 44 - 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 341 - 02 Febbraio 2009 (02/2009)
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