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Summary of Contents for Fondital KC 12
- Page 1 FORMENTERA KC 12-24-28-32 KR 12-24-28-32 KRB 12-24-28-32 INSTALLATION, USE AND MAINTENANCE Translation of the original instructions (in Italian)
- Page 2 Dear Sirs, thank You for choosing and buying one of our products. Please read these instructions carefully in order to properly install, operate, and maintain the product. WARNING • We inform users that: • Boilers shall be installed by an authorised company under the requirements set forth by the prevailing rules, in full compliance with the prevailing regulations and standards.
- Page 3 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 equipment in case the latter is sold or transferred to others.
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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. WARNING 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. -
Page 5: Table Of Contents
Instructions for the user ............Control panel ....................................... - Page 6 Fig. 1 Control panel ......................Fig.
- Page 7 Tab. 12 ERP and Labelling data - KC 12....... . .
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Page 8: Instructions For The User
1. Instructions for the user Control panel Fig. 1 Control panel A. DHW setting (+/- DHW). B. CH water temperature (+/- CH) and parameter settings. C. Alarm reset and back to the starting page during parameter selection. D. Parameter confirmation and information request. E. - Page 9 Ref. Symbol Steady on Flashing Percentage indication Not used Indication of "parameter" inside the Not used parameter menu Displaying of the number of parameters, or of the system pressure, or of the Not used burner power percentage Indication of system pressure Not used measurement unit Displaying of temperature, parameter...
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Page 10: Interpreting Boiler Status From Display Indications
Interpreting boiler status from display indications 1.2.1 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 system pressure are displayed. SUMMER WINTER CENTRAL HEATING ONLY Boiler switch in SUMMER or WINTER mode DHW function enabled. -
Page 11: Selecting The Operating Mode
Selecting the operating mode Whenever key is pressed, the "SUMMER”, “WINTER” , “CH ONLY”, “OFF” modes are enabled in sequence. At this stage, all buttons are enabled. "OFF" operating status When the "OFF" mode is enabled, no function is active. "SUMMER"... -
Page 12: Adjusting Heating And Dhw Temperature
Adjusting heating and DHW temperature Press button +/- DHW to select the desired DHW temperature. During selection, icon will flash. In the phase in which the icon is flashing, only the buttons to adjust the temperature are enabled. As soon as button is released, icon will continue flashing for approx. 3 seconds, and temperature value will flash as well. -
Page 13: Failures That Cannot Be Reset
Failures that cannot be reset The display shows the failure based on the corresponding error code (see Troubleshooting on page 86). Some failures can be reset through the key, while some others are self-resettable (refer to the following paragraph). 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. -
Page 14: Boiler Operation
Boiler operation 1.8.1 Switching on DANGER 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 shut-off cock. • Turn the master switch installed ahead of the boiler to ON. •... - Page 15 A flow limiter is installed within the boiler, which limits DHW output flow rate. This limit value is: 10 litres per minute for KC 12 model; 13 litres per minute for KC 24 model, 14 litres per minute for KC 28 model, and 16 litres per minute for KC 32 model.
- Page 16 1.8.4.2 Plate heat exchanger freeze protection (only model KC) When the DHW temperature sensor detects a water temperature of +5°C, the boiler switches on and stays on at its minimum heat output until the DHW temperature reaches +10°C or 15 minutes have elapsed (the deviating valve is in the DHW position). During the DHW freeze protection operation the temperature detected by the flow probe is constantly checked, and in case it reaches +60 °C the burner is switched off.
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Page 17: Boiler Shut-Down
1.8.6 Operation with external probe (optional) Boiler can be connected to a probe measuring the external temperature (optional - not compulsory, supplied by the manufacturer). Once the external temperature value is known, the boiler will automatically adjust the heating water temperature: increasing it as the external temperature decreases and decreasing it as the external temperature increases. -
Page 18: Fig. 2 Filler Cock
1.9.1 Burner shut-down Fault code E01 is displayed flashing on the display in the event of burner shut-down due to missing flame. If this happens, proceed as follows: • check that the gas cock is open and light a kitchen gas ring for example to check the gas supply; •... - Page 19 1.9.5 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: in this case the boiler does not work. •...
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Page 20: Maintenance
1.10 Maintenance WARNING The boiler must be serviced periodically as indicated in the relevant section of this manual. Appropriate boiler maintenance ensures efficient operation, environment preservation, and safety for people, animals and objects. Boilers must be maintained by qualified personnel only, under the requirements set forth by the prevailing rules. 1.11 Notes for the user WARNING The user may only access parts of the boiler that can be reached without using special equipment or tools. -
Page 21: Technical Features And Dimensions
• DHW plate heat exchanger made of stainless steel (KC). • Motorised 3-way valve (models KC and KRB). • DHW priority switch (KC). • DHW flow-limiting device - 10 litre/min (KC 12), 13 litre/min (KC 24), 14 l/min (KC 28) and 16 l/min (KC 32). 2.1.2 User interface •... - Page 22 2.1.3 Operating features • CH electronic flame modulation with timer-controlled rising ramp (60 seconds, adjustable). • DHW electronic flame modulation (mdoels KC and KR/KRB with optional water heater). • DHW priority function (model KC and models KR/KRB with optional water heater) •...
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Page 23: Dimensions
Dimensions KC model Fig. 3 Dimensions KC Trap inspection cap CH system flow (3/4”) DHW outlet (1/2") Gas inlet (1/2”) Cold water inlet (1/2") CH system return (3/4”) System unloading cock. Filler cock Technical features and dimensions... -
Page 24: Fig. 4 Dimensions Kr
KR models Fig. 4 Dimensions KR CH system flow (3/4”) Gas inlet (1/2”) Cold water inlet (1/2") Trap inspection cap CH system return (3/4”) System unloading cock. Technical features and dimensions... -
Page 25: Fig. 5 Dimensions Krb
KRB models 60 62 Fig. 5 Dimensions KRB CH system flow (3/4”) Gas inlet (1/2”) Secondary return from water heater (1/2") Trap inspection cap CH system return (3/4”) System unloading cock. Water heater secondary flow (1/2") Technical features and dimensions... -
Page 26: Boiler Layouts
Boiler layouts KC model Condensate trap Modulating gas valve Flow temperature twin probe Modulating fan Main condensing heat exchanger Air-purging device Air intake duct Flue gas venting duct Flue gas analysis ports 10. Flue gas thermostat on venting duct 11. Flue gas temperature probe on exchanger 12. -
Page 27: Fig. 7 Hydraulic Diagram Kr
KR model Condensate trap Modulating gas valve Flow temperature twin probe Modulating fan Main condensing heat exchanger Air-purging device Air intake duct Flue gas venting duct Flue gas analysis ports 10. Flue gas thermostat on venting duct 11. Flue gas temperature probe on exchanger 12. -
Page 28: Fig. 8 Hydraulic Diagram Krb
KRB model Condensate trap Modulating gas valve Flow temperature twin probe Modulating fan Main condensing heat exchanger Air-purging device Air intake duct Flue gas venting duct Flue gas analysis ports 10. Flue gas thermostat on venting duct 11. Flue gas temperature probe on exchanger 12. -
Page 29: Operating Data
Operating data Burner pressures reported in the following page must be verified after the boiler has been operating for 3 minutes. Gas category: II2H3P Gas mains pressure Diaphragm Fuel Nozzle [mm] Flue CO2 value [%] [mbar] diameter [mm] Natural gas G20 3.05 9.0 ÷... -
Page 30: General Characteristics
General characteristics Description KC 12 KC 24 KC 28 KC 32 CH nominal heat input 12.0 23.7 26.4 30.4 Minimum heat input Maximum heat output (80-60°C) - CH 11.7 22.9 25.4 29.4 Minimum heat output (80-60°C) - CH Maximum heat output (50-30°C) - CH 12.6... -
Page 31: Tab. 7 Model Kr/Krb General Data
Description KR/KRB 12 KR/KRB 24 KR/KRB 28 KR/KRB 32 CH nominal heat input 12.0 23.7 26.4 30.4 Minimum heat input Maximum heat output (80-60°C) - CH 11.7 22.9 25.4 29.4 Minimum heat output (80-60°C) - CH Maximum heat output (50-30°C) - CH 12.6 24.9 27.9... -
Page 32: Tab. 8 Kc-Kr-Krb 12 Combustion Data
Description 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 temp. – air temp. °C 57.9 34.5... -
Page 33: Erp And Labelling Data
Annual electricity consumption Annual fuel consumption Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 34: Tab. 13 Erp And Labelling Data - Kc 24
Annual electricity consumption Annual fuel consumption Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 35: Tab. 14 Erp And Labelling Data - Kc 28
Annual electricity consumption Annual fuel consumption Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 36: Tab. 15 Erp And Labelling Data - Kc 32
Annual electricity consumption Annual fuel consumption Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 37: Tab. 16 Erp And Labelling Data - Kr/Krb 12
Sound power level, indoors Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 38: Tab. 17 Erp And Labelling Data - Kr/Krb 24
Sound power level, indoors Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 39: Tab. 18 Erp And Labelling Data - Kr/Krb 28
Sound power level, indoors Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 40: Tab. 19 Erp And Labelling Data - Kr/Krb 32
Sound power level, indoors Contact details: FONDITAL S.p.A. - Via Cerreto, 40 I-25079 VOBARNO (Brescia) Italia - Italy (*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet. (**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet). -
Page 41: Instructions For The Installer
3. Instructions for the installer Installation standards This boiler must be installed in compliance with the laws and standards in force in the country of installation, which are herein considered as entirely transcribed. To find out about the gas category and technical specifications, refer to operation data and general features specified in the previous pages. DANGER Accessories and spare parts for installation and service procedures are to be supplied by the Manufacturer. -
Page 42: Positioning The Boiler
Positioning the boiler Each boiler is supplied with a paper template, found inside the packaging (see Fig. 9 Paper template). The template allows you to ensure that the pipes connected to the CH system, the DHW system and the gas mains, and the air intake/flue gas venting ducts are all laid out correctly during the realisation of the water system and before installation of the boiler. -
Page 43: Installing The Boiler
Installing the boiler DANGER 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 44: Air Intake And Flue Gas Venting System
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. DANGER The boiler is equipped with a safety device for flue gas exhaustion check. It is strictly forbidden to tamper with and/or prevent operation of such safety device. -
Page 45: Fig. 10 Installation Examples
Fig. 10 Installation examples Air intake Flue gas vent Condensate Rain Instructions for the installer... - Page 46 3.6.1 Possible 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 47 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. C13 installation type KC 12 - KR 12 - KRB 12 • Minimum permissible length of horizontal coaxial pipes is 1 meter. • Maximum permissible length of Ø100/60 mm horizontal coaxial pipes is 9 meters.
- Page 48 C33 installation type KC 12 - KR 12 - KRB 12 • Minimum permissible length of vertical coaxial pipes is 1 meter. • Maximum permissible length of Ø 100/60 mm vertical coaxial pipes is 9 meters. • Maximum permissible length of Ø 125/80 mm vertical coaxial pipes is 13.5 meters.
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Page 49: Fig. 11 Coaxial Ducts C33
Installation types C43 - C53 - C83 KC 12 - KR 12 - KRB 12 • Minimum permissible length of air intake pipe is 1 meter. • Minimum permissible length of flue gas venting pipe is 1 meter. - Page 50 KC 24 - KR 24 - KRB 24 • Minimum permissible length of air intake pipe is 1 meter. • Minimum permissible length of flue gas venting pipe is 1 meter. • Maximum permissible length of air intake/flue gas venting pipes is 84 meters (combined length of air intake and flue gas venting pipe). •...
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Page 51: Checking Combustion Efficiency
Fig. 13 Coaxial ducts C43 - C53 - C83 Fig. 14 Coaxial ducts C43 - C53 - C83 dimensions A. Gasket B. Blanking cap Checking combustion efficiency 3.7.1 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. -
Page 52: Connection To Gas Mains
3.7.2 Measurement procedure The boiler is equipped with a tower allowing for air intake/flue gas venting pipe connection (see Fig. 15 Plugs position and Fig. 16 Hole position). The tower is designed with two pre-arranged openings directly accessing air and flue gas ducts (see Fig. 15 Plugs position). Remove caps A and B from the pre-arranged openings on the tower, before starting combustion checking procedure (see. -
Page 53: Hydraulic Connections
Fig. 17 Connection to gas mains Hydraulic connections 3.9.1 Central heating 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. The CH outlet and return pipes must be connected to the respective 3/4”... -
Page 54: Connection To Electrical Mains
WARNING Depending on the hardness of the mains water supply, ascertain whether or not to install appropriate domestic water treatment systems using water treatment products suitable for drinking water and compliant with the regulations and standards in force in the country of installation. Water treatment is always advisable when water supplied to the boiler is more than 20°F hard. -
Page 55: Connection To Ambient Thermostat (Optional)
WARNING The manufacturer cannot be held responsible for any damage caused by failure to earth the system correctly: gas, water, or CH system pipes are not suitable for grounding power networks. 3.10.1 Selecting the operating range in heating mode Heating water temperature adjustment range depends on the selected operating range.: •... -
Page 56: Tab. 21 Limits To Be Set For Tsp Parameters And Default Values In Relation To Boiler Type (Tsp0)
WARNING Do not connect the remote control to mains electrical power 230 V ~ 50 Hz. The remote control wiring must not be grouped together in the same sheath as the power cables: if the cables are sheathed together, electrical interference from the power cables may compromise the functions of the Remote Control; For complete instructions on how to program the Remote Control, refer to the instruction manual included in the Remote Control kit. - Page 57 3.12.1 Installation of the (optional) external probe and sliding temperature operation The boiler can be connected to an (optional) external temperature probe (optional, provided by the manufacturer) for sliding temperature operation. WARNING Only original external temperature probes supplied by the manufacturer must be used. If non-original external temperature probes are used, correct operation of the boiler and external probe cannot be guaranteed.
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Page 58: Tsp Parameters
The figure shows the curves for a fictitious ambient temperature of 20°C.Parameter P10 allows selecting the curve value shown (see Fig. 19 Thermoregulation curves). If fictitious ambient temperature value is edited on boiler display, the curves shift up or down, respectively, by the same amount. With a fictitious ambient 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. -
Page 59: Tab. 22 List Of Parameters - I
3.14 TSP parameters Parameter Settable values Default values Notes 0 = 12 kW natural gas; 1 = 24 kW natural gas; P0 - TSP0 According to the 2 = 28 kW natural gas; 3 = 24 kW propane; 4 0 ÷ 7 model = 28 kW propane;... -
Page 60: Tab. 23 List Of Parameters - Ii
Parameter Settable values Default values Notes From P18 to P26 see "Solar parameters (with P17=2 or with supplementary board) P27 - TSP27 P10 < 1 (low temp.) = 20 °C; P10 > 1 (high 20 ÷ 78 °C temp.) = 40 °C Heating timer reset temperature P29 - TSP29 0 ÷... -
Page 61: Tab. 24 Solar Parameter (With P17=2 Or With Supplementary Board)
Parameter Settable values Default values Notes P18 - TSP18 0 ÷ 1 0 = solar valve; 1 = solar pump Solar plant type choice P19 - TSP19 10 ÷ 90 °C 60 °C Water heater set-point setting P20 - TSP20 1 ÷... -
Page 62: Tab. 25 Display Only
Parameter Settable values Default values Notes only with external probe connected External temperature Flow temperature only with external probe connected Nominal calculated flow temperature only with at least one zone board connected Set point of zone 2 flow temperature only with at least one zone board connected Current zone 2 flow temperature only with two zone boards connected Set point of zone 3 flow temperature... -
Page 63: Tab. 26 System Check
Parameter Settable values Default values Notes 0 ÷ 1 0 = standard function; 1 = relay energised Multifunction relay forcing 0 ÷ 1 0 = standard function; 1 = relay energised Zone 2 pump relay forcing 0 = standard function; 1 = force opening; 2 = 0 ÷... -
Page 64: Filling The System
3.15 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 bleeding valves on all radiators and verify the boiler automatic valve operation. •... -
Page 65: Starting Up The Boiler
3.16 Starting up the boiler 3.16.1 Preliminary checks Before starting the boiler, check that: • The flue gas venting duct and the relevant 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 66: Fig. 21 Available Head Kc-Kr-Krb 24
100% 72% (*) 37% (**) 1000 Fig. 21 Available head KC-KR-KRB 24 100% 75% (*) 34% (**) 1000 1200 Fig. 22 Available head KC-KR-KRB 28 100% 74% (*) 29% (**) 1000 1200 1400 Fig. 23 Available head KC-KR-KRB 32 Q ....Flow rate (l/h) H . -
Page 67: Wiring Diagrams
3.18 Wiring diagrams TA2 OT o TA1 SEXT SBC n.a. n.c. 230V a.c 485A 485B Conn_F SF SR1 SR2 CN_J Conn_E CN_C CN_C CN_E CN_E Conn_C CN_H CN_H CN_B CN_J CN_A CN_A CN_D CN_D CN_M ACC1 CN_L CN_L CN_I X7 X6 X5 X4 X3 X2 CN_M CN_I 230Vac... - Page 68 Internal connections DK: ....pressure transducer FL: ....flow switch SS: ....DHW NTC 'OUT' probe 10k Ohm a 25°C B=3435 SRT: .
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Page 69: Fig. 25 Wiring Diagram For Forced Circulation Solar System With Combi Boiler
3.18.1 Wiring diagram for forced circulation solar system with combi boiler Parameter setting P03 : 1 P17 : 2 P18 : 1 Solar collector temperature probe External probe Ambient thermostat Terminals 5 - 6 Terminals 1 - 2 Terminals 21 - 22 - 23 Terminals 11 - 12 0KITSOLC07 Terminals 9 - 10... - Page 70 3.18.2 Solar collector freeze protection function Solar collector freeze protection 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. 3.18.3 Collector heat transfer function This function prevents that solar collectors in stagnation state are exposed to high thermal stresses.
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Page 71: Fig. 27 Wiring Diagram For Natural Circulation Solar System With Combi Boiler
3.18.6 Wiring diagram for natural circulation solar system with combi boiler Parameter setting P03 : 1 P17 : 2 P18 : 0 External probe Ambient thermostat Terminals 5 - 6 Terminals 1 - 2 Terminals 21 - 22 - 23 SOLAR DEVIATING VALVE Terminals 9 - 10 Solar water heater... -
Page 72: Fig. 29 Wiring Diagram Kc Model
TA2 OT o TA1 SEXT SBC n.a. n.c. 230V a.c 485A 485B wh rd bk Conn_F SF SR1 SR2 CN_J Conn_E CN_C CN_C CN_E CN_E Conn_C CN_H CN_H CN_B CN_J CN_A CN_A CN_D CN_D CN_M ACC1 CN_L CN_L CN_I 230V 50Hz X7 X6 X5 X4 X3 X2 CN_M CN_I... - Page 73 Internal connections DK: ....pressure transducer FL: ....flow switch SRT: ....return NTC temperature probe 10k Ohm a 25°C B=3435 SR1-SR2: .
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Page 74: Fig. 30 Forced Circulation Solar System With Ch Only Boiler Wiring Diagram
3.18.7 Forced circulation solar system with CH only boiler wiring diagram Parameter setting P03 : 3 P17 : 2 P18 : 1 External probe Ambient thermostat Terminals 5 - 6 Terminals 11 - 12 Terminals 1 - 2 Terminals 21-22-23 Terminals 7 - 8 Terminals 24 - 25 Boiler water heater... -
Page 75: Fig. 32 Wiring Diagram Krb Model
TA2 OT o TA1 SEXT SBC n.a. n.c. 230V a.c 485A 485B Conn_F SF SR1 SR2 CN_J Conn_E CN_C CN_C CN_E CN_E Conn_C CN_H CN_H CN_B CN_J CN_A CN_A CN_D CN_D CN_M ACC1 CN_L CN_L CN_I 230V 50Hz X7 X6 X5 X4 X3 X2 CN_M CN_I Risc. - Page 76 Internal connections DK: ....pressure transducer FL: ....flow switch SRT: ....return NTC temperature probe 10k Ohm a 25°C B=3435 SR1-SR2: .
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Page 77: Fig. 33 Relay With Remote Control And Ta2
3.18.8 Multifunction relay setting diagrams The control panel features a multifunction relay, to be set through the parameter P17-TSP17 Solenoid valve, coupled to Remote Control Solenoid valve with limit swich Fig. 33 Relay with remote control and TA2 CIRCULATION PUMP, coupled to Remote Control Fig. -
Page 78: Tab. 27 Parameter Setting
CIRCULATION PUMP, coupled to ambient thermostat (TA) Fig. 35 Relay with TA2 request (P17 = 3) DIAGRAM PARAMETER SETTING (SOLAR PLANT EXCLUDED) Error signalling relay Relay controlled by TA1 or by the Remote Control Relay controlled by TA2 or by the interface Tab. -
Page 79: Adaptation To Other Gas Types And Burner Adjustment
3.19 Adaptation to other gas types and burner adjustment WARNING This boiler is built to run on the type of gas specified 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 80: Fig. 36 Intake Pipe
3.19.2 Switching from PROPANE to NATURAL GAS • Disconnect the boiler from the electric power supply. • Open the boiler front casing. • Loosen the three screws securing combustion chamber front panel to frame, then remove panel. • Loosen the screw securing intake pipe to mixer, and remove pipe (see Fig. 36 Intake pipe). •... -
Page 81: Fig. 38 Mixer Plastic Body
Fig. 38 Mixer plastic body Fig. 39 Assembling direction A. Gas valve B. Mixer C. Air intake D. Gas pipe E. O-ring F. Nozzles G. Venturi to mixer retaining screws H. Gas fitting I. Direction tab 3.19.3 Gas valve setting Maximum heating output adjustment •... -
Page 82: Fig. 40 Adjusting Co2 Value
Fig. 40 Adjusting CO2 value Fuel CO2 value (%) 12 kW Natural gas 9.0 - 9.3 12 kW Propane 10.0 - 10.3 24 kW Methane 9.0 - 9.3 24 kW Propane 28 kW Methane 9.0 - 9.3 28 kW Propane 10 - 10.3 32 kW Methane 9.0 - 9.3... -
Page 83: Testing The Boiler
4. Testing the boiler Preliminary checks Before testing the boiler, it is recommended to check the following: • the installation is compliant with the prevailing standards; • the flue gas venting duct and the relevant 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 84: Maintenance
5. Maintenance WARNING 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. The boiler must be serviced at least once every year. -
Page 85: Decommissioning, Disassembly And Disposal
6. Decommissioning, disassembly and disposal Warning If you decide to definitively decommission the boiler, have decommissioning, disassembly and disposal procedures carried out by qualified personnel, only. The user is not authorised to carry out such operations. Decommissioning, disassembly and disposal operations must be performed with boiler cold and disconnected from gas and power mains. The materials the boiler is made of can all be recycled. -
Page 86: Malfunctions, Possible Causes And Solutions
7. Malfunctions, possible causes and solutions Troubleshooting BOILER STATUS MALFUNCTION PROBABLE CAUSE USER'S TASKS QUALIFIED PERSONNEL'S TASKS Check gas supply. Gas supply failure. Check gas supply cock or gas network safety valve intervention. Gas valve is disconnected. Contact qualified personnel Reconnect it. - Page 87 BOILER STATUS MALFUNCTION PROBABLE CAUSE USER'S TASKS QUALIFIED PERSONNEL'S TASKS DHW probe is electrically Contact qualified personnel Reconnect it. disconnected. E06** DHW probe failure (KC only). DHW probe faulty. Contact qualified personnel Replace it. Flue probe is electrically Contact qualified personnel Reconnect it.
- Page 88 BOILER STATUS MALFUNCTION PROBABLE CAUSE USER'S TASKS QUALIFIED PERSONNEL'S TASKS Interface display is Contact qualified personnel Reconnect it. disconnected. No communication between board and peripheral devices Zone/solar boards are E41** Contact qualified personnel Reconnect them. (panel interface and/or zone/ disconnected. solar boards).
- Page 89 BOILER STATUS MALFUNCTION PROBABLE CAUSE USER'S TASKS QUALIFIED PERSONNEL'S TASKS Flue probe on heat exchanger E89*** Faulty flue temperature value. Contact qualified personnel Replace it. is faulty or damaged. The max. number of resets Max. number of reset attempts from the touch screen has To reset the interface, disconnect boiler from power mains.
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- Page 92 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 858-01 - Agosto 2015 (08/2015)
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