Nova Florida Fondital Delfis-Antea CTFS 24 Didactic Manual
  1. Manuals
  2. Brands
  3. Nova Florida Manuals
  4. Boiler
  5. Fondital Delfis-Antea CTFS 24
  6. Didactic manual

Nova Florida Fondital Delfis-Antea CTFS 24 Didactic Manual

Wall-hung atmospheric boilers
Hide thumbs
Table of Contents

Advertisement

Quick Links

DIDACTIC MANUAL
Wall-hung
FAMILY:
atmospheric boilers
Instantaneous type
GROUP:
with
Forced Draught
Delfis-Antea
MODELS:
Mono-thermal
Indoor and built-in
VERSIONS:
installation
AST 14 C 261/00
PART NO.:
______________________________________________
1st Edition, February 2013

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Fondital Delfis-Antea CTFS 24 and is the answer not in the manual?

Questions and answers

Related Manuals for Nova Florida Fondital Delfis-Antea CTFS 24

Summary of Contents for Nova Florida Fondital Delfis-Antea CTFS 24

  • Page 1 DIDACTIC MANUAL Wall-hung FAMILY: atmospheric boilers Instantaneous type GROUP: with Forced Draught Delfis-Antea MODELS: Mono-thermal Indoor and built-in VERSIONS: installation AST 14 C 261/00 PART NO.: ______________________________________________ 1st Edition, February 2013...

  • Page 2: Table Of Contents

    Contents SECTION 01 TECHNICAL CHARACTERISTICS 1.1 – Models 1.2 – Overall Dimensions 1.3 – Technical Specifications ___________________Page SECTION 02 CONTROL PANEL AND DIAGNOSTICS 2.1 – User's Interface 2.2 – LCD 2.3 – Boiler Status and Fault Codes ___________________Page SECTION 03 HYDRAULIC DIAGRAMS AND COMPONENTS 3.1 –...
  • Page 3 ________________________________________________________________________________ AST 14 C 261/00...

  • Page 4: Models

    SECT. 1 TECHNICAL CHARACTERISTICS 1.1 MODELS Mono-thermal Delfis-Antea CTFS 24 ABBREVIATION KEY combined TFS : forced draught, sealed chamber MAIN CHARACTERISTICS Mono-thermal DELFIS-ANTEA CTFS 24: atmospheric boiler for indoor installation, combined instantaneous, with production of domestic hot water + heating, forced draught, sealed chamber, mono-thermal with plate exchanger;...
  • Page 5 INDOOR INSTALLATION ________________________________________________________________________________ AST 14 C 261/00...
  • Page 6 INSTALLATION TEMPLATE ________________________________________________________________________________ AST 14 C 261/00...

  • Page 7: Technical Specifications

    1.3 TECHNICAL SPECIFICATIONS General Characteristics CTFS 24 Operating parameters Equipment category II2H3+ Burner nozzles Minimum CH circuit flow rate CH circuit min. and max. pressure 0.5 and 3 DHW circuit min. and max. pressure 0.5 and 8 DHW specific flow rate (∆t 30°C) l/min 11.1 ON/OFF triggering temperature due to overheating...
  • Page 8 Design data and flue sizing CTFS 24 Load Pmax. Pmin. at 30 % Casing heat loss 1.01 2.04 Flue system heat loss with burner on 5.89 10.26 Flue (natural gas) mass flow 14.18 15.21 Flue gas temp. – air temp. °C CO2 value (natural gas - butane gas - propane) 6.8/8.0 –...

  • Page 9: User's Interface

    SECT. 2 CONTROL PANEL AND DIAGNOSTICS 2.1 USER'S INTERFACE 1. Set domestic hot water temperature These keys are used to set (increase decrease) domestic hot water temperature within a range from 35°C to 57°C. 2. Recall information and confirm parameters This key is used to scroll the sequence of the values of some parameters (see following paragraphs).

  • Page 10: Lcd

    2.2 LCD a. Flue cleaning function indicator It illuminates flashing when the flue cleaning function is enabled by pressing keys 2 and 4at the same time (see previous paragraph). When this function is ON, boiler flow temperature and the current supplied to the modulation coil are displayed.

  • Page 11: Boiler Status And Fault Codes

    2.3 BOILER STATUS AND FAULT CODES Normal operation Boiler in STANDBY mode. Boiler in SUMMER mode. No active function. The flow temperature is displayed Boiler in SUMMER or WINTER mode. No active function. The flow temperature is displayed Boiler in CENTRAL HEATING ONLY mode. No active function.
  • Page 12 Boiler shut-down due to missing flame Boiler shut-down due to double flow probe triggering Boiler shut-down due to flue gas pressure switch triggering Boiler shut-down due to low water pressure switch triggering Boiler shut-down due to double flow probe fault Boiler shut-down due to DHW probe fault External probe fault Solar collector probe fault (SCS)
  • Page 13 Shut-down due to gas valve safety circuit hardware fault Air pressure switch recognition failure Modulation coil fault Max. number of reset attempts from remote reached NOTE: The board is able to count and store the boiler's latest five faults (both resettable and self- resettable).

  • Page 14: Hydraulic Diagram

    SECT. 3 HYDRAULIC DIAGRAMS AND COMPONENTS 3.1 HYDRAULIC DIAGRAM CTFS 1. Automatic by-pass 15. Expansion tank 16. 3-bar safety valve DHW probe 17. Deaerator Motorised 3-way valve 4. Modulating gas valve 18. Minimum pressure switch 5. Burner 19. Circulation pump 20.

  • Page 15: Hydraulic Unit

    3.2 HYDRAULIC UNIT MOTORISED THREE-WAY VALVE The boiler uses a three-way valve to divert the water flow coming from the primary exchanger into another pipe, in particular it diverts the water into the secondary (plate) exchanger, where heat will be transferred to the DHW. This valve consists of one main three-way body, one plastic (thermosetting polymer) cartridge, and one electric motor (actuator) to move the internal shutter.
  • Page 16 Three-way valve section: CARTRIDGE IN THERMOSETTING POLYMERS SHUTTER ACTUATOR 3-WAY STATUS Shutter upwards Actuator piston in rest position Central heating Shutter downwards A t t The boiler is fitted with an internal automatic by-pass with non-return valve, whose opening threshold is 400 mBar. In case of load losses in the system due to thermostatic valve triggering, the by-pass ensures a minimum flow rate inside the primary exchanger.
  • Page 17 One of the main factors which has helped to minimise the dimensions of the compact boiler consists in the collocation of the hydraulic unit. All components in "contact" with the water have been put together inside the circulation pump volute, including the 3-bar safety valve, low water pressure switch and the filler cock unit.

  • Page 18: Heat Exchanger

    3.3 HEAT EXCHANGERS PRIMARY EXCHANGER It is made up of a set of copper pipes, connected to each other in a way to create a "coil". The finning improves the efficiency of the heat exchange between the water flowing inside, the heat developed by the burner flame and the hot combustion flue gases.

  • Page 19: Expansion Tank

    3.4 EXPANSION TANK An increase in heating water temperature inside a closed circuit corresponds to an increase in the water volume. As no further space is available, the increase will affect the pressure and not the volume. If pressure value exceeds safety valve triggering point, this latter will open and discharge water from the system.

  • Page 20: Gas Valve

    3.6 GAS VALVE The boiler is approved for operating with gas valve, model SIT 845: Gas inlet ELECTRICAL CONNECTIONS pressure SOLENOID VALVES EV1 and EV2 GAS IN Gas outlet pressure GAS OUT Gas valve characteristics EV1 and EV2 safety coil operating power supply 230 VAC 50 Hz EV1 operating current 40 mA...

  • Page 21: Gas Valve Setting

    SECT. 4 GAS SETTING AND PARAMETERS 4.1 GAS VALVE SETTING To set the gas valve, proceed as follows:  check supply static pressure by means of the inlet pressure measurement point E referring to the "setting" table on page 9, according to the type of fuel used (pressure values lower than requested do not guarantee proper boiler operation);...

  • Page 22: Flue Cleaning Function

    4.2 FLUE CLEANING FUNCTION The boiler features a flue cleaning function which must be used to measure combustion efficiency during operation and to set the burner. This function can be enabled only in the HEATING + DOMESTIC HOT WATER operating mode.

  • Page 23: Gas Conversion

    4.3 GAS CONVERSION Boilers are manufactured to run on the type of gas (natural gas or LPG) specifically required upon purchase order placing, and any conversion shall be made by qualified personnel. During gas conversion, proceed as follows:  make sure to work with the boiler disconnected from the electric power supply; remove combustion chamber front panel;...
  • Page 24 TECHNICAL parameter editing If keys “reset” and “- heating” are pressed together for three seconds, you will access the parameter setting mode. Use keys “+/- heating”, to select the desired parameter: Press “OK” to confirm that parameter value must be edited; the adjustable wrench symbol indicates that parameter value can be edited using keys “+/- heating”: To confirm parameter value editing, press “OK”.
  • Page 25 0 to 10 min Heating thermostat timing 0 to 10 min CH power rising ramp timer Timer for CH post-circulation, freeze 30 to 180 s protection and flue cleaning function 0 = normal 0 ÷ 1 "Solar" DHW thermostat setting 1 = solar Water hammer protection delay, 0 to 10 s...
  • Page 26 It can be displayed with a Display of current flow temperature for connected zone board only zone 2 It can be displayed with Display of flow temperature set-point two connected zone boards for zone 3 It can be displayed with Display of current flow temperature for two connected zone boards...
  • Page 27 zone1; association 02 = Ta2 zone2; remote control zone1; It can be set only with connected zone board. 0 ÷ 3 Without external probe: Selection of zone 2 curve value < 1, reduced range (low temperature) It can be set only with one connected zone board.
  • Page 28 0 = standard function 0 ÷ 2 1 = force opening Zone 4 mixing valve forcing 2 = force closing 0 = standard function 0 ÷ 1 Solar board pump relay forcing 1 = relay energised 0 = standard function Solar board valve relay forcing - 0 ÷...

  • Page 29: Main General Characteristics

    SECT. 5 OPERATING LOGIC 5.1 MAIN GENERAL CHARACTERISTICS  Function priority;  Boiler type selection;  Automatic flame control;  Ignition with ramp at pre-set power;  DHW priority;  DHW modulation; Ambient thermostat;   Adjustable CH maximum output; ...
  • Page 30 P0=1 (24 kW natural gas): CTFS P0=0 (24 kW LPG): CTFS 24kW GPL TFS 24kW GPL TN CORRENTE CORRENTE MODULATORE MODULATORE [mA] [mA] POTENZA POTENZA [kW] [kW] Warning: the “current-output” curve can be modified by moving point B through parameter P96 and point C through parameter P95.
  • Page 31 AUTOMATIC FLAME CONTROL The device is always enabled and constantly performs self-check functions. Upon an operation request, the fan is supplied with power after checking that the air pressure switch is in rest condition. As soon as the air pressure switch enabling is output, the flame control device starts measuring the waiting time TW (1.5 seconds);...
  • Page 32 IGNITION WITH RAMP AT PRE-SET POWER Boiler ignition mode is selected with parameter P6 (default setting is 0): P6=0  Ignition with ramp Upon every operation request entailing burner ignition, burner will be ignited with a current ramp to modulation coil changing from the initial to the final value within 10 seconds.
  • Page 33 DHW PRIORITY With boiler running in “DHW” or “DHW + CH” mode, DHW flow switch electric contact closing will originate a DHW operation request, thus starting modulation. Such request can be delayed in order to avoid events deriving from the water hammer through parameter P15 (max.
  • Page 34 During DHW modulation, once the min. gas flow rate is reached and with the supplied output above the required one, the burner is switched off when DHW temperature reaches the + 5°C set-point value. After burner switching off, whilst the operation request is still present, burner will be ignited again when the temperature falls below the usual + 3°C set- point.
  • Page 35 TEMPERATURE RANGE PRE-SELECTION With parameter P10, without any external probe, it is possible to set two ranges (standard or reduced) in order to adjust the flow water by means of the boiler keys or the remote control: P10 < 1  heating temperature reduced range: 35 ÷ 45°C P10 ≥...
  • Page 36 Upon reaching the minimum gas flow rate (Pmin), if the power supplied is still higher than requested, the burner will be switched off as soon as a flow temperature higher than the set temperature is reached (set-point +5°C in case of a standard range and set-point +2°C at a reduced range).
  • Page 37 AMBIENT THERMOSTAT TIMER (ANTIFAST) During modulation in heating mode, after burner switching off, wait 240 sec (parameter P11). After that, if the flow temperature is lower than the “set-point”, the burner is switched on again. The heating thermostat timer is reset: upon a DHW request;...
  • Page 38 Press “OK” to confirm that parameter value has to be edited; the wrench symbol indicates that parameter value can be edited using keys “+/- heating”:  For high temperature systems (radiators), we recommend setting parameter P10 to a value between 1 and 2. ...
  • Page 39 In the second case use the following formula:  Tmax  CURVE  Testmin Where, Tmax is the maximum flow temperature and Textmin is the minimum external temperature. Example: Low temperature: High temperature: Tmax = 44°C Tmax = 70°C Text = -10°C Text = -10°C ...
  • Page 40 PROGRAMMABLE MULTIFUNCTION RELAY The boiler is fitted with a multifunction relay which can be associated to a different function by setting parameter P17:  P17=0 Alarm reference Upon each shut-down or fault the relay is energised: Electrical connections:  P17=1 Remote control reference Upon each request by the remote control (or TA1), the relay is excited: Electrical connections: ________________________________________________________________________________...
  • Page 41  P17=3 Ambient thermostat reference Upon each request by the ambient thermostat TA2, the relay is excited: Electrical connections: OPENTHERM REMOTE CONTROL PRE-SETTING The board is provided with an internal interface that allows the connection of an OpenTherm protocol-based remote control. This latter, besides serving as an ambient thermostat for its zone, allows to set some of the boiler main parameters.
  • Page 42 PRESETTING FOR CONNECTION TO SUPPLEMENTARY BOARDS One or more supplementary board(s) (max 4) can be connected to the boiler board for the management of a zone system and of a solar plant. In particular, besides the multifunction relay that can control the high temperature direct zone (TA1), it is possible to install up to three supplementary boards for controlling the equivalent number of mixed zones and one more board for managing a “complex”solar plant.
  • Page 43 Both boiler board and relevant supplementary boards are fitted with ajumper whose function is to close the RS 485 communication line in case of problems in the transmission of data between the boards due to very long connection lines or to electromagnetic disturbances.
  • Page 44 Zone 3 and 4 Solar The zone board is further supplied with a bi-colour LED with the following indications: Green steady  pump enabled; Red quick flashing  valve opening; Red slow flashing  valve closing; Green flashing  boards with no request Red flashing slow-slow (1s on, 1s off) ...
  • Page 45 selected range. Parameter P32 displays the calculated flow temperature, whereas parameter P31 the current one detected by the boiler probe. Zone 2: parameter P62 setting to set the thermoregulation curve (with external probe) or the operation range (without external probe). Adjustment through parameter P63 of the fictitious ambient temperature (with external probe) or of the flow value at fixed point (without external probe) according to the selected range.
  • Page 46 Water heater filling function (pomp ON) Boiler temperature is set with parameter P19, which corresponds to a value ranging from 10 to 90°C ( default 60°C Solar pump PS is enabled in the following conditions:  Tsvs < P19 - 2°C ...
  • Page 47  Tscs < Tmin solar collector OFF (P23 - 5°C)  Tscs > Tmax solar collector OFF (P22) Warning: in case of solar valve probe SVS fault, the deviating valve is enabled in solar-only mode, while the water heater filling is managed according to the same logic, taking into account the solar water heater probe SBS instead of the faulty one.
  • Page 48 solar water heater exceeds the set-point temperature following the activation of the "heat transfer” function . If the remote control is not connected, the "water heater cooling” function is always enabled, otherwise it is enabled only from 00.00 to 6.00 . Solar pump (PSOL) enabling condition for water heater cooling: Tsvs >...
  • Page 49 Request end closing timer P74 + 20 s Post-circulation timer From boiler with P13 Circulation pump anti-seizing timer 3 s each 24 hours Anti-freeze function timer 15 min Anti-freeze triggering temperature < 5 °C TEMPERATURE PROBE INTEGRITY CHECK The system checks for any faults in the probes connected to the modulation board, signalling any detected faults with the relevant error code.
  • Page 50  fault: in case of fault of the solar water heater probe Solar probes (E24, E27, E28) (SBS) or of the solar collector probe (SCS), the solar pump is immediately switched off. In case of fault of the solar valve probe (SVS), the deviating valve is enabled in “solar only”...
  • Page 51 ANTI-SEIZE FUNCTION Boiler pump and deviating valve The electronic board calculates the time elapsed since pump disabling; if this time is equal to 24 hours, both the pump and the valve will be enabled again for 30 seconds. During the pump anti-seizing function the burner remains off and upon each activation of the pump for any request the timer is reset.
  • Page 52 FREEZE PROTECTION FUNCTION Flow A flow NTC probe measures the water temperature inside the boiler and if it falls below 5°C it generates an operation request in flow anti-freeze mode, with consequent burner ignition. At the end of the ignition sequence, the output rate supplied to burner will be forced to the minimum value .
  • Page 53 In case of flame control shut-down and impossibility to ignite the burner, the DHW anti- freeze function will anyway carry out a pump circulation cycle. Summary of operation thresholds: DESCRIPTION 10°C (or after 15’ of operation, DHW freeze protection function 5°C or if the flow temperature is >...
  • Page 54 Air pressure switch (E03 shut-down) The air pressure switch, fitted only in the forced draught models, is a normally open contact connected in series with the gas valve, and is directly managed by the automatic flame control. Its function is to detect a proper pressure difference in two different points of the boiler and is directly managed by the electronic board.
  • Page 55 Boiler combustion chamber automatic recognition (E72 shut-down) The type of boiler (forced draught or natural draught) is automatically recognised each time the board is supplied with power. The board attempts to read the inputs dedicated to the air pressure switch. During such phase, “CHA” will appear on the boiler display and upon the following recognition (which must take place within the first two minutes) the following message will be displayed for 5 seconds: If for any reason the board is not able to detect the presence of the air pressure switch, the...

  • Page 56: Electronic Board

    SECT. 6 ELECTRICAL SYSTEM 6.1 ELECTRONIC BOARD Spare part numbers: 6SCHEMOD29 Board characteristics : from 170 Vac to 300 Vac Operating voltage 45 – 66 Hz Power supply frequency: IP00 Protection class: 5x20mm 3.15AF Protection fuse: µ Ionisation current: : ionisation Flame detection method non-polarised Type of detection...

  • Page 57: Wiring Diagram

    6.3 WIRING DIAGRAM 1..8 9 - 11 Connecting wires to outer terminal box Key: water pressure switch flow switch gas valve NTC 10 KOhm DHW probe MDV: motorised deviating valve ignition/detection electrode APS: air pressure switch boiler circulation pump Sr1Sr2: NTC 10K Ohm double flow probe Connections to be made by the installer (ON OUTER TERMINAL BOX): TA (pins 1 and 2): ambient thermostat (clean contact free from potential)

  • Page 58: 100/60 Co-Axial Air/Vent Ducts

    SECT. 7 VENT DUCTS AND PIPES For intake/flue gas vent lines use only original ducts designed for the specific boiler (as per manufacturer's specifications). 7.1 100/60 CO-AXIAL AIR/VENT DUCTS Dimensions for connection of flue gas duct to co-axial pipes Type C12 Type C12 horizontal vent The minimum permissible length of horizontal coaxial pipes is 1 metre, excluding the first elbow connected to the boiler.
  • Page 59 Type C32 vertical vent Minimum permissible length for vertical coaxial pipes is one metre, equal to the length of the flue. Maximum permissible length for vertical coaxial pipes is 6 metres, including the chimney. For each additional 90° elbow, maximum permissible length is to be reduced by 1 metre, whereas for the 45°...

  • Page 60: 80/80 Split Air/Vent Ducts

    7.2 80/80 SPLIT AIR/VENT DUCTS Type C12 Type C12 - C32 - C42 – C52 – C82 AIR INTAKE Minimum permissible length of air intake pipe is 1 meter. Each wide radius 90° air-intake duct elbow (R=D) is equivalent to a 0.8 metres long straight pipe section.
  • Page 61 Base splitter kit 0SDOPPIA11: Air suction stub pipe Flue gas drain stub pipe Neoprene joints Air diaphragm Flue gas drain diaphragm WARNING: the air diaphragm is supplied with the splitter kit. 80/80 split duct load loss table Part Vent Intake 1m extension 0.5m extension 90°...
  • Page 62 TABLE OF TECHNICAL FAULTS Boiler Status Malfunction Probable cause Solution Check gas pressure. Check gas supply cock Gas supply fault or gas network safety Burner does not ignite valve intervention. Gas valve is disconnected Re-connect it Gas valve is faulty Replace it The board is faulty Replace it...
  • Page 63 One of the two probes is Reconnect or replace Boiler shut-down, picture disconnected or in short- flashes: circuit Double flow probe fault The difference between the temperatures detected by Replace the probe the double probe is higher than 5°C Boiler shut-down, picture flashes: DHW probe is not Disconnected or short-...
  • Page 64 Boiler shut-down, picture Disconnected or faulty Reconnect or replace it flashes: Solar water heater probe probe SBS fault (connected to boiler Probe detects a value lying Make sure the probe is board) outside the admissible of PT1000 type range Check the Remote Boiler shut-down, on The connection with the Control connections...
  • Page 65 Boiler shut-down, picture flashes: Safety circuit hardware Replace main board fault (fan relay) Boiler shut-down, picture flashes: Safety circuit hardware Replace main board fault (gas valve relay) Check air intake/flue Combustion air intake is gas vent ducts: clean insufficient or flue gas vent or replace as Boiler shut-down, is difficult...
  • Page 68 FONDITAL GROUP Delfis-Antea Mono-thermal Technic Manual Customer Service Department 1st edition, February 2013 AST 14 C 261 – 00...

Table of Contents

Save PDF