Radiant SFK 28 Instructions For Installation, Use And Maintenance Manual
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Radiant SFK 28 Instructions For Installation, Use And Maintenance Manual

Condensing water heater
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Installation, Use
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SFK 28
Condensing water heater
0476
SFK 28 - RAD - ING - Manuale - 1801.1_V3

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Summary of Contents for Radiant SFK 28

  • Page 1 Installation, Use and Maintenance Manual for model SFK 28 Condensing water heater 0476 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 2: Table Of Contents

    2.1.4. ACCESSING AND PROGRAMMING THE PARAMETERS 2.1.5. DIGITECH CS PARAMETERS TABLE 2.2. MAINTENANCE 2.2.6. GENERAL MAINTENANCE WARNINGS 2.2.7. TECHNICAL DATA 2.2.8. TECHNICAL ASSEMBLY 2.2.9. HYDRAULIC BOARD 2.2.10. WIRING DIAGRAM 2.2.11. ACCESSING THE WATER HEATER SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 3 3.1.5. START-UP 3.1.6. OPERATING MODE 3.1.7. INFORMATIONAL NOTE ON ANTI-FREEZE FUNCTION 3.1.8. FAULT SIGNALLING CODES 3.1.9. ACTIVE FUNCTIONS SIGNALLING CODES 3.1.10. FAST H2O FUNCTION 3.1.11. MAINTENANCE 3.1.12. COVER CLEANING 3.1.13. DISPOSAL SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 4: Introduction

    › The images contain important parts described in the text, marked with numbers or letters. › (See chap “chapter name”): this entry indicates another section in the Manual that you should refer to. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 5 5 of DPR n 447 dated 06/12/1991, “Regulation implementing of law 5 March 1990, n 46” and in compliance with law 6 December 1971, n 1083 “Safety standards for the use of fuel gas”, declares SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 7: Installer Section

    1. INSTALLER SECTION 1. INSTALLER SECTION The installation operations described in this section should be performed only by qualified personnel, having the appropriate technical training in the field for the installation and maintenance of components of civil and industrial domestic hot water production and heating plants.

  • Page 8: Installation

    Failure to observe this caution will void a grid that does not hamper the useful section the warranty of the heat exchanger. of passage. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 9: Reference Legislation

    1.1.3. REFERENCE LEGISLATION The installation must be realized according to the requirements of current legislation and in compliance with local technical regulations, according to the indications of the good technique. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 10: Unpacking

    › Turn the water heater at 90° holding it with your hand (fig. 1-B). › Lift the box (fig. 1-C) and remove the guards (fig. 1-D). fig. 1 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 11: Positioning And Minimal Technical Spaces

    Ø80 Ø125 Ø100 fig.2 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 12: Overall Dimensions

    1. INSTALLATION 1.1.6. OVERALL DIMENSIONS 1.1.7. JIG Ø 3/4” RECIRCULATION RC - Ø 3/4” Ø 3/4” COLD Ø 3/4” SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 13: Recirculation Mode Circulator Prevalence/Flow Diagram

    1.1.8. RECIRCULATION MODE CIRCULATOR PREVALENCE/FLOW DIAGRAM ZRS 12/6 FLOW RATE (m Circulator priority maximum speed Circulator head at second speed Circulator head at minimum speed Appliance Loss SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 14: Hydraulic Connection

    In order to prevent limestone build-up and damages to the domestic water heat exchanger, the hardness of the domestic supply water should not exceed 15 °f. However, please check SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 15: Recirculation Mode

    53 °C. When this temperature is achieved, the appliance shuts-off whilst the pump keeps running. The appliance is activated again when the temperature falls to 50 °C. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 16: Production Thru Aremote Tank

    (see chapters ‘DIGITECH CS PARAMETERS TABLE’ and ‘ACCESSING AND PROGRAMMING THE PARAMETERS’); › Set the temperature setpoint of the D.H.W. tank by pressing ‘ ’ and ‘ ’ the sanitary (fig. fig. 3 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 17: Filling The Condensate Collection Siphon

    “T” (fig. 1); › Connect the dedicated flexible condensate draining tube to a waste disposal system. The condensate can be drained directly in the sewerage system by inserting an easily serviceable siphon. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 18: Anti-Freeze Protection

    (230 V) and gas supply. For long periods of standby, please empty the water heater. If the temperature goes below -10 °C please insert electrical resistances kit (cod. 82259LP). SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 19: Gas Connection

    WARNING It is strictly forbidden the use of adaptors, multiple plugs and/or extensions for the general power supply of the equipment from the electrical network. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 20: Power Supply

    · the blue cable to the terminal marked with “N”. · the brown cable to the terminal marked with “L”. After performing these operations, remount plate “A” and the front casing. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 21: Optional Electrical Connections

    2). › After removing the plate, connect the electrical cables to terminal “B” (see fig. 2); › After performing these operations, remount plate “A” and the front casing. fig. 2 SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 22 Cut off the voltage from the main switch. › remove the boiler’s front casing (refer to chapter ACCESSING THE WATER HEATER). COD.40-00017 fig. 3 COD.40-00360 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 23: Fume Exhaust Fittings

    › Make sure that the discharge tube doe not protrude inside the fumes exhaust duct, stop before it reaches the inner surface of the latter. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 24: Installation Modes

    The ducts must be certified for this specific use and for a temperature greater than 100 °C. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 25 The locations in which are installed gas devices must be vented so as to ensure the amount of air necessary for a regular combustion and for location ventilation. The natural air intake must take place directly through: SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 26: Types Of Fume Exhaust Systems

    Subsequent addition of a curve is similar to adding a linear length of tube according to the indications below: co-axial curve Ø60/100 at 90° = 1 m co-axial curve Ø60/100 at 45° = 0.6 m SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 27 Subsequent addition of a curve is similar to adding a linear length of tube according to the indications below: curve Ø80 at 90°= 1.5 m curve Ø80 at 45°= 1.2 m SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 28 Subsequent addition of a curve is similar to adding Ø100 a linear length of tube according to the indications below: Ø 60 curve Ø60/100 at 90° = 1 m curve Ø60/100 at 45° = 0.6 m SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 29: Support Centre Section

    1. SUPPORT CENTRE SECTION 2. SUPPORT CENTRE SECTION All operations described below relative to first start- up, maintenance and replacement should be performed only by qualified personnel and authorized by RADIANT BRUCIATORI S.p.A.

  • Page 30: First Start-Up

    Local and National Laws and Standards; › make sure that the heating system gate valves are open; › make sure that there is no intake of gaseous products within the system; SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 31: Water Heater Commissioning

    Before repeating the operation, wait at least 5 seconds from the last start-up attempt and unlock the water heater from “E01” error code by pressing the Reset ‘ ’ key. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 32: Co2 Value Check And Calibration

    › Open several D.H.W. taps at the highest flow rate. › Access parameter ‘P07’ following the procedure described chapter “ACCESSING fig. 2 PROGRAMMING THE PARAMETERS” and stay in edit mode until the calibration is completed SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 33: Accessing And Programming The Parameters

    ’with the message ‘P00’, and release the keys ‘ ’ and ‘ ’. Use the keys ‘ ’ and ‘ ’ of the symbol recirculation to select the parameter to be edited. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 34 To exit the parameters menu, hold at the same time the keys ‘ ’ and ‘ ’ and wait for the symbol ‘ ’ to appear on the display. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 35: Digitech Cs Parameters Table

    RECIRCULATION DIFFERENTIAL ACTIVATION 5 - 15 VALUE EXPRESSED IN °C THROUGH THIS PARAMETER YOU CAN ANTICIPATE RECIRCULATION FUNCTION, COMPARED RECIRCULATION POINT PRESET BY THE END-USER, BY MODIFYING THE TEMPERATURE DIFFERENCE. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 36 THE TIME NECESSARY FOR THE WATER HEATER TO REACH THE MINIMUM SET POWER, AFTER THE BURNER START-UP. TYPE OF UNIT SELECTION 0 - 1 0 = °C - l/min 1 = °F - gpm SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 37 HOT WATER TREATMENT (AND INFORM THE USERS) TO AVOID UNFORSEEABLE DAMAGES TO PERSONS, ANIMALS AND PROPERTY. THERMOSTATIC VALVE SHOULD BE INSTALLED AT THE DOMESTIC HOT WATER OUTLET TO AVOID ANY BURNS. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 38 PUMP OPERATION IN WATER HEATER MODE 0 - 1 0 = DISABLED THROUGH THIS PARAMETER YOU CAN ACTIVATE/DEACTIVATE THE CIRCULATING PUMP DURING THE NORMAL OPERATION 1 = ENABLED OF THE WATER HEATER. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 39: Maintenance

    › remove and clean the burner from oxidation; condensate. › check the integrity and the position of the sealed chamber sealing gasket; SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 40 2. MAINTENANCE › check that the liquid flow is not obstructed and that there are no combustion gas refluxes inside the internal system. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 41: Technical Data

    Max discharge length Ø50/50 - Hor Split Max discharge length Ø60/60 - Hor Split Max discharge length Ø80/80 - Hor Split Max discharge length Ø50 - Hor duct Max discharge length Ø60 - Hor duct SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 42 Fuel consumption - G30 kg/h 2.13 Nominal Supply pressure - G31 mbar D.H.W Max fan speed - G31 D.H.W Min. fan speed - G31 Fuel consumption - G31 kg/h 2.10 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 43: Technical Assembly

    11. SAFETY THERMOSTAT 12. LIGHT UP ELECTRODE 13. AIR SUCTION TUBE 14. AUTOMATIC AIR RELIEF VALVE 15. START-UP TRANSFORMER 16. PROPORTIONAL VENTURI 17. CIRCULATOR 18. CONDENSATE COLLECTION SIPHON 19. FLUXMETER SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 44: Hydraulic Board

    SAFETY VALVE 8 bar AIR RELIEF VALVE 10. DOMESTIC HOT WATER OUTLET PROBE 11. SAFETY THERMOSTAT 12. AIR SUCTION TUBE 13. PROPORTIONAL VENTURI 14. CONDENSATE COLLECTION SIPHON 15. NO RETURN VALVE 16. CIRCULATOR SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 45 (RECIRCULATION NON ACTIVE) (RECIRCULATION NON ACTIVE) (POST-CIRCULATION ACTIVE) D.H.W. PRODUCTION THRU A REMOTE TANK D.H.W. CIRCUIT MIXING VALVE RECIRCULATION PUMP RECIRCULATION STORAGE TANK D.H.W. STORAGE TANK SENSOR EXPANSION VESSEL WATER NETWORK SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 46: Wiring Diagram

    SRC: RECIRCULATION PROBE L: LINE GI: YELLOW TRA:START-UP TRANSFORMER MP: PANEL TERMINAL N: NEUTRAL BI: WHITE TF: FUMES THERMOFUSE (102°C) EV: ELECTRIC FAN NE: BLACK GR. GREY MF: FLUXMETER RO: RED SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 47: Accessing The Water Heater

    › remove the fastening screws (2 - fig.1) placed on the front edge of the side panel; › grab the bottom of the panel and remove it by moving it sideways and then pulling it upwards (see fig. 1). SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 48: Accessing The Electronic Board

    (fig. 1) loosening them and turn the panel downwards; › unscrew the four fastening screws 1 - fig. 1; › remove the crankcase pulling it upwards. fig. 1 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 49: Emptying The Domestic System

    › close the main supply tap of the water supply network; › open all cold and hot water taps; › after completing all operations, close the discharge tap and all previously opened water taps. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 50: Fault Signalling Codes

    IF THE TENSION MEASURES BETWEEN PHASE-PHASE NEUTRAL AND GROUND IS ALMOST EQUAL TO THE ONE MEASURED BETWEEN PHASE AND GROUND, YOU HAVE TO INSTALL A PHASE-PHASE TRANSFORMER KIT (COD. 88021LA) SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 51 KOHM AT 25 °C NTC); DISCONNECTED OR WET CHECK THE WIRING. PROBE CONNECTOR. ELECTRIC FAN ELECTRIC FAN BOARD REPLACE IT; AUTOMATIC. BROKEN; ELECTRIC FAN BROKEN; REPLACE IT; FAULTY POWER SUPPLY REPLACE IT. CABLE. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 52 SUPPLY VOLTAGE OFF THE CHECK THE POWER SUPPLY AUTOMATIC. OPERATION RANGE ( 160 NETWORK (THE ERROR DEACTIVATES VOLTS). AUTOMATICALLY AS SOON AS THE SUPPLY VOLTAGE FALLS BACK WITHIN THE REQUESTED LIMITS). SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 53: Active Functions Signalling Codes

    YOU CAN ACTIVATE/DEACTIVATED IT BY HOLDING SIMULTANEOUSLY AND FOR 7 SECONDS THE RESET ‘ ’ AND ‘ ’ OF THE SYMBOL RECIRCULATION . THE “FAST H2O” FUNCTION GUARANTEES THE IMMEDIATE D.H.W SUPPLY AT THE REQUESTED TEMPERATURE. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 54: Gas Type Transformation

    ‘GAS TYPE SELECTION’ from the control panel fig. 3 (see chapters ‘DIGITECH CS PARAMETERS TABLE’ and ‘ACCESSING AND PROGRAMMING THE PARAMETERS’); › adjust the CO2 combustion value as indicated in chapter ‘CO2 VALUE CHECK AND CALIBRATION’. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 55: User Section

    1. USER SECTION 3. USER SECTION The operations described in this section are addressed to all those who will use the machine. The machine must be used and accessed only by qualified operators that fully read and understood the User section, paying particular attention to the warnings.

  • Page 56: Use

    DANGER DO NOT obstruct the air vents of the location in which the gas device is installed to prevent the formation of toxic explosive mixes. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 57: Control Panel

    OPERATING MODE SELECTION KEY: ON/ OFF RESET KEY: FAULTS RESET DOMESTIC WATER TEMPERATURE ADJUSTMENT KEY / HOLD THE KEYS AT THE SAME TIME FOR 5 SECONDS TO ACTIVATE DISPLAY BACK LIGHT FOR 10 MINUTES DISPLAY SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 58: Display Icons

    MODULATING POWER LEVEL OF THE WATER HEATER (fig.2) ≤ 33% >33%<66% >66%<100% OPERATION IN DOMESTIC MODE ENABLED ERROR DISPLAY THAT CAN BE RESET OFF OPERATING MODE ERROR DISPLAY THAT CAN NOT BE RESET fig. 2 SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 59: Info Menu Display Data

    To exit display mode press the INFO ‘ ’ key. LIST OF DISPLAYED DATA INFO CODE DESCRIPTION COLD CIRCUIT INLET PROBE TEMPERATURE HOT WATER CAPACITY FAN SPEED RECIRCULATION PROBE TEMPERATURE SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 60: Start-Up

    30 °C to 45 °C. OFF MODE In this mode the water heater no longer meets the domestic hot water demands, the anti-freeze and pump anti-locking systems still remain active. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 61: Fault Signalling Codes

    CUT OFF THE POWER SUPPLY FROM THE MAIN SWITCH AND REQUEST THEN RESTORE IT, AS SOON AS THE ERROR CODE DISAPPEARS, THE WATER HEATER WILL RESTART AUTOMATICALLY. IF THE BLOCK PERSISTS CONTACT THE TECHNICAL SUPPORT CENTRE. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 62 ’ BUTTON ON THE CONTROL PANEL TO RESET THE FAULT, AS SOON AS THE ERROR CODE DISAPPEARS FROM THE DISPLAY, THE WATER HEATER WILL START AUTOMATICALLY. SUPPLY VOLTAGE CONTACT THE TECHNICAL SUPPORT CENTRE. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 63: Active Functions Signalling Codes

    › water wastes are limited waiting that the water reaches the right temperature. To activate/deactivate the Fast H2O function please follow the instruction indicated in the paragraph ‘ACTIVE FUNCTIONS SIGNALLING CODES’. SFK 28 - RAD - ING - Manuale - 1801.1_V3...

  • Page 64: Maintenance

    (Waste Electrical and Electronic Equipment) shows that this product can not be dismantled as domestic waste. Proper dismantle of this product helps preventing potentially negative consequences on human health and environment. SFK 28 - RAD - ING - Manuale - 1801.1_V3...
  • Page 68 RADIANT BRUCIATORI s.p.a. Via Pantanelli, 164/166 - 61025 Loc. Montelabbate (PU) Tel. +39 0721 9079.1 • fax. +39 0721 9079279 e-mail: info@radiant • Internet: http://www.radiant.it...

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