Fondital ITACA CTFS 24 Installation, Use And Maintenance Manual
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Fondital ITACA CTFS 24 Installation, Use And Maintenance Manual

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ITACA CTFS
24 - 28 - 32
ITACA RTFS
24 - 28 - 32
InSTAllATIon, uSe
And mAInTenAnCe
EN
Translation of the
original instructions (in
Italian)

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Summary of Contents for Fondital ITACA CTFS 24

  • Page 1 ITACA CTFS 24 - 28 - 32 ITACA RTFS 24 - 28 - 32 InSTAllATIon, uSe And mAInTenAnCe Translation of the original instructions (in Italian)
  • Page 2 Dear customers, Thank You for choosing and buying one of our products. Please read these instructions carefully in order to properly install, operate, and maintain said equipment. CAuTIon • We inform users that: • Boilers shall be installed by an authorised company possessing the requirements set forth by the prevailing rules and operating in full compliance with the prevailing 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.
  • Page 4 dAnGeR With gas fired boilers, take the following measures if you smell gas: • do not turn on or off electric switches and do not turn on electric appliances • Do not ignite flames and do not smoke • Close the main gas cock • open doors and windows • Contact a Service Centre, a qualified installer or the gas supply company. Never use a flame to locate a gas leak. The boiler is designed for installation in the countries indicated on the technical data plate: installation in any other country may be a source of danger for people, animals and/or property.
  • Page 5 Rapid operating instructions The following instructions will help you to switch the boiler on quickly and regulate it for immediate use. CAuTIon 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. You will therefore have to refer to the full boiler instructions as well as to the specific instructions for the accessories. This manual contains full details of how the boiler works, and full operating and safety instructions. 1.

  • Page 6: Table Of Contents

    Instructions for the user ..........pag. Control panel ............................pag.
  • Page 7 Fig. 1 Control panel ................pag. Fig.
  • Page 8 Table 1 Parameters displayable with “info” button ............pag. Table 2 CTFS 24 - RTFS 24 adjustment rates .

  • Page 9: Instructions For The User

    1. Instructions for the user Control panel Fig. 1 Control panel A. Temperature selection (day/night) and information recall. B. Weekly programme for temperature zones and manual programme selection. C. Time and ambient temperature setting, d. DHW temperature setting (+/- dHW). e.
  • Page 10 SYMBOL STEADY Ref. FlASHInG Indication of "parameter" inside the Not applicable parameter menu Displaying of the number of parameters, or of the system pressure, Not applicable or of the burner power percentage Automatic filling procedure is active Not applicable Indication of the temperatures and values of fault and shutdown Not applicable parameters...
  • Page 11 SYMBOL STEADY Ref. FlASHInG Indication of the centigrade degrees Not applicable Solar pump or solar valve active Not applicable System pressure measurement unit Not applicable Percentage indication Not applicable During parameter editing, the wrench symbol stays on until the set datum is Not applicable confirmed.

  • Page 12: Boiler Status - Lcd Display Indications

    Boiler status - lCd display indications 1.2.1 normal operation Boiler switch in OFF mode Boiler switch in SUMMER or WINTER or CH ONLY mode No function is enabled. CH flow temperature and CH system pressure are displayed. CH ONLY SummeR WInTeR Boiler switch in SUMMER or WINTER mode DHW function enabled.
  • Page 13 Boiler switch in SUMMER or WINTER mode External water heater active, DHW function active. DHW temperature is displayed. (Only for models featuring this function, fitted with optional external water heater). SummeR WInTeR 1.2.2 malfunction To identify the malfunction refer to paragraph Troubleshooting on page 83. Instructions for the user...

  • Page 14: Enable/Disable "Comfort" Function

    enable/disable "comfort" function This function keeps the plate heat exchanger hot, to minimise the waiting time for the production of DHW.When the "comfort" icon is on, the function is enabled. When it is off the function is disabled and the boiler is in standard DHW operating mode for an instant boiler.For CH-only models (RTFS) the "comfort"...

  • Page 15: Selecting The Operating Mode

    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. 1. Operating mode "OFF" When the "OFF" mode is enabled, no function is active. 2.

  • Page 16: Adjusting Ch And Dhw Water Temperature

    4. Operating mode "HEATING ONLY" When the "CH ONLY" mode is enabled, only the CH water production function is active. Adjusting CH and DHW water temperature Press button +/- dHW to select the desired DHW temperature. icon will flash During selection, When the icon is flashing, only the buttons to adjust the water temperature are enabled.

  • Page 17: Time Setting

    Time setting 1. To set time, minutes and day of the week, press button 2. Flashing values can be edited by pressing +/- CH buttons. The first editable value is the one relative to the HOUR. 3. Press oK to confirm the edited value and shift to next parameter. The second editable value is the one relative to the MINUTE.

  • Page 18: Day Temperature And "Night Temperature" Setting

    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.
  • Page 19 3. Press oK to confirm the edited values and enter the "night temperature" setting mode. 4. Press buttons +/- CH to edit "night temperature" values. 5. Press oK to confirm the edited values and leave the setting mode. Instructions for the user...

  • Page 20: Manual Programme Setting

    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. External water heater, if there is one, is heated according to the specific programme. 1.

  • Page 21: Automatic Programme Setting

    Automatic programme setting The selection of "automatic" mode, identified by symbol , allows boiler to enable heating of both zones in "day temperature" or "night temperature", based on the programming envisaged for zone 1 and zone 2. 1. Press button PRoG twice to access the "automatic programme" setting mode.

  • Page 22: Ch Programme Mode

    1.10 CH programme mode To access zone 1 heating programme displaying or editing, press button twice. 1. The display shows zone 1 symbol flashing, sun or moon symbols, bars on or off, respectively, at 00:00.Clock lights display the programming connected to day 1 (Monday) and 00:00 bar is flashing.

  • Page 23: Parameter Display

    1.11 Parameter display Press button to scroll the different parameter values. You can quit this function at any time by simply pressing the button. To check the meaning of all parameters, see TSP parameters on page Parameter deSCRIPTIon P30 - external temperature displayed (if an external probe is installed).

  • Page 24: Failures That Cannot Be Reset

    1.12 Failures that cannot be reset The display shows the failure based on the corresponding fault code (see Troubleshooting on page 83). Some failures can be reset through the button (refer to the following paragraph), while some others are self-resettable. If failures cannot be reset but are of the self-resettable type, no button will be enabled and only the LCD backlighting will be on.

  • Page 25: Boiler Operation

    1.14 Boiler operation 1.14.1 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 cock. • Turn the master switch installed ahead of the boiler to ON. • The display turns on and indicates the function currently active (see Boiler status - LCD Display indications on page 12). •...
  • Page 26 1.14.3 dHW function The DHW production function is enabled on the CTFS and on RTFS models with external water heater (optional). Such function has always priority over CH water supply. Set desired DHW water temperature via DHW +/- buttons +/- dHW. symbol flashes on the screen and the DHW current temperature setting is displayed.
  • Page 27 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. dAnGeR The freeze protection function only protects the boiler, not the whole heating system. The CH system can be effectively protected against icing by using specific anti-freeze products that are suitable for multi-metal systems.

  • Page 28: Boiler Shut-Down

    1.14.7 operation with (optional) external probe 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 29 1.15.1 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 30: Fig. 2 Model Ctfs Filler Cock

    1.15.3.2 Automatic filling function disabled (P94 = 0) If "shutdown due to insufficient pressure in system" error e04 starts flashing (indicating safety water pressure switch triggering), fill the system by opening the filler cock (see Fig. 2 Model CTFS filler cock and Fig. 3 Model RTFS filler cock). e04 error is displayed when system pressure drops below 0.4 bar;...
  • Page 31 1.15.4 Shut-down due to automatic filling failure Error e08 indicates that the automatic filling procedure has not been successfully completed. Two cases are possible: 1. System pressure above 0.4 bar 2. System pressure below 0.4 bar System pressure above 0.4 bar When ReSeT button is pressed, boiler shuts down and display goes back to standard screen. If the automatic filling occurs correctly the display shows the standard screen.

  • Page 32: Maintenance

    1.15.6 Alarm due to (optional) Remote Control connection malfunction The boiler recognises whether or not there is a Remote Control (optional). If the boiler does not receive information from the Remote Control after the Remote Control itself is connected, the boiler attempts to re-establish communication for 60 seconds, after which the fault code e31 is shown on the Remote Control display.

  • Page 33: Technical Features And Dimensions

    2. Technical features and dimensions Technical features The boiler is equipped with an integrated gas atmospheric burner. The following models are available: • CTFS sealed chamber, forced draught boiler with electronic ignition for heating and instantaneous DHW supply. • RTFS sealed chamber, forced draught boiler with electronic ignition for heating only.
  • Page 34 2.1.3 operating features • CH electronic flame modulation with timer-controlled rising ramp (60 seconds, adjustable). • Flow freeze protection function: ON 5°C; OFF 30°C or after 15 minutes of operation if CH temperature > 5 °C. • Timer-controlled flue cleaning function: 15 minutes. •...

  • Page 35: Sizes

    Sizes 60 62 Fig. 4 Sizes Cold water inlet Gas inlet CH system flow DHW outlet (CTFS only) CH system return Technical features and dimensions...

  • Page 36: Boiler Layouts

    Boiler layouts 2.3.1 Boiler layout CTFS Fig. 5 Boiler layout 1. Automatic by-pass CH system flow 2. DHW temperature probe DHW outlet 3. Motorised 3-way valve Gas inlet 4. Modulating gas valve Cold water inlet CH system return 5. Burner 6.

  • Page 37: Fig. 6 Boiler Layout

    2.3.2 Boiler layout RTFS Fig. 6 Boiler layout 1. Automatic by-pass CH system flow 2. Modulating gas valve Gas inlet 3. Burner Cold water inlet CH system return 4. Flow temperature twin probe 5. Ignition/detection electrode 6. Mono-thermal heat exchanger 7.

  • Page 38: Operating Data

    operating data Burner pressures reported in the following page must be verified after the boiler has been operating for 3 minutes. Gas mains min pressure at max pressure at Fuel type nozzle [mm] pressure [mbar] the burner [mbar] the burner [mbar] Methane G20 1,35 12,2...

  • Page 39: General Characteristics

    General characteristics description m.u. CTFS 24 RTFS 24 CTFS 28 RTFS 28 CTFS 32 RTFS 32 II2H3+ II2H3+ II2H3+ Category Burner nozzles Nominal heat input 25,5 30,5 Max heat output 23,7 28,6 30,8 Min heat output 11,1 14,3 Minimum CH system pressure Maximum CH system pressure Minimum DHW system pressure n.a.

  • Page 40: Table 6 Ctfs 24 - Rtfs 24 Combustion Data

    description m.u. max heat input min heat input 30% load Heat loss from the boiler casing 1,05 0,63 5,97 Flue system heat loss with burner on 10,37 Flue system mass capacity 15,44 16,38 Flue gas temperature - Air temperature °C CO2 value Maximum heat output efficiency rating 93,0...

  • 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. For gas category and other technical data refer to the operating data and general characteristics shown on previous pages. dAnGeR Accessories and spare parts for installation and service procedures are to be supplied by the manufacturer.

  • Page 42: Choosing Where To Install The Boiler

    Choosing where to install the boiler The following must be taken into account when choosing where to install the boiler: • indications contained in paragraph Air intake and flue gas venting system on page and its sub-paragraphs. • check the wall for sturdiness, avoiding weak areas; •...

  • Page 43: Fig. 7 Paper Template

    PT RU NL DE GB GR RO CZ HU TR Tiraggio Tiro Tirage iąg Tiragem Natuurlijke Schornstein- Natural Φυσικό Tiraj Přirozený tah Kémény Bacalı naturale natural naturel naturalny natural trek draught ελκυσ ό natural Tiraggio Tiro Tirage iąg Tiragem Geforceerde Raumluftu- Forced Αναγκαστικό...

  • Page 44: 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. Before commissioning a ReCondITIoned system (where radiators have been added, the boiler has been replaced, etc.) thoroughly clean it to remove any sludge and residues.

  • Page 45: 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 safety devices checking correct flue gas exhaustion. In case of a malfunction of air intake and/or flue gas venting ducts, the boiler is shut down and flashing E03 code is displayed.
  • Page 46 Configuration of air intake and flue gas venting ducts 3.6.1 Type B22 • Boiler intended for connection to a chimney pipe or a device for flue gas venting external to the boiler room. • Combustion air is taken directly from the boiler room itself while flue gas is conveyed to the outside. •...
  • Page 47 Type C52 • Boiler with split ducts for combustion air intake and flue gas venting. • These flues may discharge in areas at a different pressure. The terminals may not face each other from opposed walls. • The terminals may not face each other from opposed walls. Type C62 •...

  • Page 48: Table 9 Flue Gas Venting Duct Length And Diaphragm Diameter

    Air intake and flue gas venting via 100/60 mm coaxial ducts 3.6.2 3.6.2.1 Installation types: C12 and C32 Provisions for models CTFS 24 and RTFS 24 • The minimum permissible length of horizontal coaxial ducts is 0.5 metres, including the first elbow connected to the boiler. • The maximum allowed length of horizontal coaxial ducts is 6 metres, including the first elbow connected to the boiler. •...

  • Page 49: Fig. 8 Coaxial Duct Kit 0Kitconc00

    Provisions for models CTFS 32 and RTFS 32 • The minimum permissible length of horizontal coaxial ducts is 0.5 metres, including the first elbow connected to the boiler. • The maximum allowed length of horizontal coaxial ducts is 5 metres, including the first elbow connected to the boiler. •...

  • Page 50: Fig. 9 Air Intake And Flue Gas Venting Via Coaxial Ducts

    Air intake and flue gas venting via coaxial ducts Fig. 9 Air intake and flue gas venting via coaxial ducts A. Neoprene gasket B. Blanking cap C. Diaphragm d. Neoprene gasket L = from 0.5 m to 7 m (28 kW) Dimensions for connection to coaxial air intake/flue gas venting duct Fig.

  • Page 51: Fig. 11 Split Ducts Kit 0Sdoppia11

    Air intake and flue gas venting via 80 mm split ducts 3.6.3 3.6.3.1 Installation types: C42, C52 and C82 For all systems with separate air intake and flue gas venting ducts, the suitable standard split ducts kit (0SDOPPIA11) must be used, it includes the following parts: A. a female flanged stub pipe Ø 80 mm for connecting air intake duct; B.

  • Page 52: Table 13 Flue Gas Venting Duct Length And Diaphragm Diameter

    Provisions for models CTFS 28 and RTFS 28 Air intake • Minimum permissible length of air intake duct is 1 meter. • Each wide radius 90° elbow (R=D) in air intake equals a 0.8 m long straight pipe section. • Each narrow radius 90° elbow (R<D) in air intake is equivalent to a 1.7 metre long straight pipe section. •...

  • Page 53: Checking Combustion Efficiency

    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. To enable the flue cleaning function, press the button and keep it pressed for 5 seconds. When the flue cleaning function is activated with the boiler in WINTER mode, the boiler performs the ignition sequence and then operates at a fixed power output.

  • Page 54: Connection To The Gas Mains

    Connection to the gas mains Cross-section gas pipe size depends on its length, layout pattern and gas flow rate. Gas supply pipe cross-section must be equal or greater than boiler gas pipe. dAnGeR Comply with installation standards enforced in the country where the boiler is installed which are considered as fully transcribed in this booklet.

  • Page 55: Connection To The Electrical Mains

    3.9.2 dHW system 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 cold water inlet and the DHW outlet must be connected to the respective 1/2” connectors C and F on the boiler (see Fig. 7 Paper template).

  • Page 56: Installation And Operation With Open Therm Remote Control (Optional)

    3.12 Installation and operation with open Therm Remote Control (optional) CAuTIon only original remote controls supplied by the manufacturer must be used. The correct operation of the Remote Control itself and of the boiler is not guaranteed if non original Remote Control units not supplied by the manufacturer are used.
  • 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. CAuTIon 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.

  • Page 58: Fig. 14 Thermoregulation Curves

    After this time, value is stored and display standard operation will be restored. In the following figure the curves are shown for a calculated ambient temperature of 20°C.Parameter P10 allows selecting the curve value (see Fig. 14 Thermoregulation curves). If calculated ambient temperature value is edited on boiler display, the curves shift up or down, respectively, by the same amount. With a calculated ambient temperature setting of 20°C, for example, if you select the curve corresponding to parameter 1 and the external temperature is - 4°C, the CH flow temperature will be 50°C.

  • Page 59: Tsp Parameters

    3.13 TSP parameters Parameter Settable values default values notes 0 = 24 kW LPG; 1 = 24 kW Methane; 2 = 28 kW LPG; 3 = 28 According to the P0 - TSP0 Boiler power selection 0 ÷ 5 kW Methane; 4 = 32 kW LPG; 5 = model 32 kW Methane.
  • Page 60 Parameter Settable values default values notes P27 - TSP27 Heating timer reset temperature 35 ÷ 78 °C 40 °C n.a. P28 - TSP28 Hydraulic selection for deviating valve 0 = recirculating pump + deviating 0 ÷ 1 valve; 1 = double pump relay control P29 - TSP29 Default parameter setting (except P00, 0 = user parameters;...
  • Page 61 Parameter Settable values default values notes 0 = on/off; 1 = ambient probe modulation; 2 = external probe P57 Type of modulation with connected ambient modulation; 3 = ambient probe and 0 ÷ 4 probes (only with P61 set between 03 and 07) external probe modulation;...
  • Page 62 Parameter Settable values default values notes 0 = standard function; 1 = relay P80 Multifunction relay forcing 0 ÷ 1 energised 0 = standard function; 1 = relay P81 Zone 2 pump relay forcing 0 ÷ 1 energised 0 = standard function; 1 = force P82 Zone 2 mixing valve forcing 0 ÷...

  • Page 63: Filling The System

    3.14 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 64: Starting Up The Boiler

    3.15 Starting up the boiler 3.15.1 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 65: Available Head

    3.16 Available head MODEL CTFS 24 - RTFS 24 Available head (mbar) 1000 1200 1400 Flow rate (l/h) MODEL CTFS 28 - RTFS 28 Available head (mbar) 1000 1200 Flow rate (l/h) MODEL CTFS 32 - RTFS 32 Available head (mbar) 1000 1200 Flow rate (l/h)

  • Page 66: Wiring Diagrams

    3.17 Wiring diagrams 3.17.1 RTFS n.a. n.c. 230V a.c 485A 485B Conn_d Conn_F Cn_J Conn_e Cn_C Cn_C Cn_e Conn_C Cn_H Cn_B Conn_B Cn_J Cn_A Cn_A Cn_d Cn_d Cn_m Conn_A Cn_n ACC1 Cn_l Cn_l Cn_I 230V 50Hz X7 X6 X5 X4 X3 X2 Cn_m Cn_I Cn_n...

  • Page 67: Fig. 17 Wiring Diagram (Detail) Rtfs

    n.a. n.c. 230V a.c 485A 485B Fig. 17 Wiring diagram (detail) RTFS Internal connections dK: ..Pressure transducer SR1-SR2: ..CH NTC probe 10k Ohm at 25°C B=3435 (double) ASP: .

  • Page 68: Fig. 18 Wiring Diagram For Forced Circulation Solar System With Ch Only Boiler

    3.17.2 Wiring diagram for forced circulation solar system with CH only boiler Parameters setting P03 : 3 P17 : 2 P18 : 1 ITACA RTFS External probe Ambient thermostat Terminals 5 - 6 Terminals 1 - 2 Terminals 11 - 12 Terminals 7 - 8 Terminals 21 - 22 - 23...

  • Page 69: Fig. 20 Wiring Diagram Ctfs

    3.17.3 CTFS n.a. n.c. 230V a.c 485A 485B Conn_d ReTRo 0SCHeInT00 Conn_F QuATouCH00 Cn_J Conn_e Cn_C Cn_C Cn_e Conn_C Cn_H Cn_B Conn_B Cn_J Cn_A Cn_A Cn_d Cn_d 0SCHemod2 8 Cn_m Conn_A Cn_n ACC1 Cn_l Cn_l Cn_I X7 X6 X5 X4 X3 X2 Cn_m Cn_I Cn_n...

  • Page 70: Fig. 21 Wiring Diagram (Detail) Ctfs

    n.a. n.c. 230V a.c 485A 485B Fig. 21 Wiring diagram (detail) CTFS Internal connections dK: ..Pressure transducer Fl: ... Flow meter SS: .

  • Page 71: Fig. 22 Wiring Diagram For Forced Circulation Solar System With Combi Boiler

    3.17.4 Wiring diagram for forced circulation solar system with combi boiler Parameters setting P03 : 1 P17 : 2 P18 : 1 ITACA CTFS Solar collector temperature probe External probe Ambient thermostat Terminals 5 - 6 Terminals 1 - 2 Terminals 21 - 22 - 23 Terminals 11 - 12 0KITSOLC07...
  • Page 72 3.17.5 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 3.17.6 Collector heat transfer function This function prevents that solar collectors in stagnation state are exposed to high thermal stresses.

  • Page 73: Fig. 24 Wiring Diagram For Natural Circulation Solar System With Combi Boiler

    3.17.9 Wiring diagram for natural circulation solar system with combi boiler Parameters setting P03 : 1 P17 : 2 P18 : 0 ITACA CTFS External probe Ambient thermostat Terminals 5 - 6 Terminals 1 - 2 Terminals 21 - 22 - 23 SOLAR DEVIATING VALVE Solar water heater Terminals 9 - 10...

  • Page 74: Fig. 26 Relay With Remote Control And Ta2

    3.17.10 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. 26 Relay with remote control and TA2 Solenoid valve, coupled to Remote Control Solenoid valve with limit swich...

  • Page 75: Fig. 28 Relay With Remote Request (P17=1)

    CIRCULATION PUMP, coupled to Remote Control Fig. 28 Relay with remote request (P17=1) CIRCULATION PUMP, coupled to ambient thermostat (TA) Fig. 29 Relay with TA2 request (P17 = 3) Instructions for the installer...

  • Page 76: Fig. 30 Relay With Alarm Alert (P17 = 0)

    REMOTE CONTROL OR BOILER INTERFACE (NOT BOTH) Fig. 30 Relay with alarm alert (P17 = 0) 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 Table 15 Parameters setting 3.17.11 Relationship between temperature and nominal resistance of all nTC probes.

  • Page 77: Adaptation To Other Gas Types And Burner Adjustment

    3.18 Adaptation to other gas types and burner adjustment CAuTIon 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. 3.18.1 Replacing the nozzles • Disconnect the boiler from the electric power supply. • Remove boiler outer front panel (see Fig. 31 Front casing opening). Fig. 31 Front casing opening • Remove the front panel of the combustion chamber, and remove expansion vessel (see Fig. 32 Expansion vessel mounting bracket removal and Fig.

  • Page 78: Fig. 33 Expansion Vessel Bracket

    Fig. 33 Expansion vessel bracket Instructions for the installer...

  • Page 79: Fig. 34 Combustion Chamber Removal

    • Remove the front panel of the combustion chamber (see Fig. 34 Combustion chamber removal). Fig. 34 Combustion chamber removal • Remove the main burner. • Remove nozzles from main burner replacing them by new gas type correct diameter ones (see Operating data on page 38). ATTenTIon The copper gaskets must be installed.

  • Page 80: Fig. 35 Gas Valve Modulation Coil

    3.18.2 Gas valve setting Maximum heat output adjustment • Check the flow pressure value (see Operating data on page 38). • Remove plastic cap C (see Fig. 35 Gas valve modulation coil ) at the top of the modulation coil, protecting the pressure regulator adjuster screws.

  • Page 81: Testing The Boiler

    4. Testing the boiler 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: there must be no leakage of combustion by-products from any of the gaskets.

  • Page 82: Maintenance

    5. maintenance CAuTIon Any maintenance (and repair) work must only be carried out by qualified personnel. The Manufacturer recommends the user to have the boiler serviced and repaired by a qualified Service Centre. Appropriate maintenance will keep the boiler working in optimum conditions, ensuring environmental protection and total safety for persons, animals and/or property. The boiler must be serviced at least once every year.

  • Page 83: Troubleshooting

    6. Troubleshooting Troubleshooting BoIleR STATuS mAlFunCTIon PoSSIBle CAuSe WHAT SHould THe uSeR WHAT SHould QuAlIFIed PeRSonnel Check for gas presence. Gas supply failure. Check for gas presence. Check gas supply cock or gas network safety valve intervention. Burner does not ignite. Contact a qualified installer Gas valve is disconnected.
  • Page 84 BoIleR STATuS mAlFunCTIon PoSSIBle CAuSe WHAT SHould THe uSeR WHAT SHould QuAlIFIed PeRSonnel Flow probe is electrically Contact a qualified installer Reconnect it. disconnected. E05** Flow probe failure Contact a qualified installer Flow probe faulty. Replace it. DHW probe is electrically Contact a qualified installer Reconnect it.
  • Page 85 BoIleR STATuS mAlFunCTIon PoSSIBle CAuSe WHAT SHould THe uSeR WHAT SHould QuAlIFIed PeRSonnel Flow probe failure on one Probe is electrically Contact a qualified installer Reconnect it. of the installed zones (with disconnected. E36** zone kit “0KITZONE05” Contact a qualified installer Probe is faulty Replace it.
  • Page 86 This page is intentionally left blank Troubleshooting...
  • Page 87 This page is intentionally left blank Troubleshooting...
  • Page 88 Fax +39 0365/878.304 e mail: info@fondital.it www.fondital.com The manufacturer reserves the right to modify the products and/or its components as deemed necessary, in any moment and without prior notice. Uff. Pubblicità Fondital IST 03 C 688 - 01 Dicember 2014 (12/2014)

This manual is also suitable for:

Itaca ctfs 28Itaca ctfs 32Itaca rtfs 24Itaca rtfs 32Itaca rtfs 28

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