Radiant Ekoflux RK 34/B Instruction Manual
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Radiant Ekoflux RK 34/B Instruction Manual

Premix condensing boiler version for remote storage cylinder connection
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Instruction Manual
for model
RK 34/B Ekoflux
Premix condensing boiler
version for remote storage cylinder connection
CE
0694
RK 34.B - RAD - ING - MAN.INST - 1305.1 - DIGITECH 2 - CBD
- AUSTRALIA
Technical specification RADIANT BRUCIATORI S.p.A. Montelabbate

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Summary of Contents for Radiant Ekoflux RK 34/B

  • Page 1 Instruction Manual for model RK 34/B Ekoflux Premix condensing boiler version for remote storage cylinder connection 0694 RK 34.B - RAD - ING - MAN.INST - 1305.1 - DIGITECH 2 - CBD - AUSTRALIA Technical specification RADIANT BRUCIATORI S.p.A. Montelabbate...

  • Page 3: Table Of Contents

    CONTENTS 1. General information 1.1 General warnings pag. 1.2 Product conformity 2. Technical characteristics 2.1 Technical data 2.2 Dimensions 2.3 Internal parts of the boiler 2.4 Water circuit 2.5 Circulation pump head/flow graph 2.6 Printed circuit board – Technical characteristics 2.7 Control panel 3.
  • Page 4 CONTENTS Maintenance (authorised personnel) 6.1 General warnings pag. 6.2 Boiler inspection 6.3 Accessing the boiler 6.4 Flushing out the primary side 6.5 Draining the central heating and domestic hot water system 6.6 Maintenance operations 6.7 Wiring diagrams 6.8 Troubleshooting 6.9 Diagnostics 6.10 Parts list...

  • Page 5: General Information

    GENERAL INFORMATION 1. GENERAL INFORMATION 1.1 General warnings Professionally qualified personnel in accordance with current laws and standards and in line with the manufacturer’s instructions must install the appliance. With ‘Professionally qualified personnel’ is intended a personnel with technical knowledge in the field of installation and maintenance of components for central heating and domestic hot water production systems for domestic and industrial use.
  • Page 6 GENERAL INFORMATION • As dictated by current legislation, this appliance must be installed exclusively by qualified authorised personnel. Before starting the boiler for the first time, make sure that it is connected to a water supply and central heating system compatible with its performance characteristics. •...

  • Page 7: Product Conformity

    GENERAL INFORMATION 1.2 Product conformity RADIANT BRUCIATORI S.p.A. declares that all its products are manufactured to a high specification and in compliance with the relevant standards. All RADIANT boilers are CE certified and possess technical and functional characteristics that comply with the following standards: UNI EN 297 for GAS-FIRED CENTRAL HEATING BOILERS TYPE B OF NOMINAL HEAT INPUT ≤...

  • Page 8: Technical Characteristics

    TECHNICAL CHARACTERISTCS 2. TECHNICAL CHARACTERISTICS 2.1 Technical data Model RK 34/B CE Certification n° 0694BN3485 Appliance Type Appliance Category Heat Input max Heat Input min Heat Output max (50/30°) 36.24 Efficiency 100% (full load 50/30°) 106.6 Efficiency 30% (partial load 50/30°) 107.9 Heat Output max - 80/60°C (Non condensing) 33.42...

  • Page 9: Dimensions

    TECHNICAL CHARACTERISTCS 2.2 Dimensions LEGEND HEATING RETURN Ø 3/4” HEATING FLOW Ø 3/4” REMOTE D.H.W. CYLINDER RETURN Ø 3/4” REMOTE D.H.W. CYLINDER FLOW Ø 3/4” COLD WATER INLET Ø 1/2” Ø 3/4” CONDENSATE DRAIN Ø 25...
  • Page 10 TECHNICAL CHARACTERISTCS Storage tank 150 lt. X-X' SECTION Ø16 STAINSTELL PIPE BRACKET BRACKET G 3/4" polyurethane foam insulation MODEL U.M 150 Storage cylinder capacity Storage cylinder exchange area Circulation pump lt/h 2860 Heat Input max Hot water flow rate Dt 30° Lt/h 1149 Externa diameter (De)

  • Page 11: Internal Parts Of The Boiler

    TECHNICAL CHARACTERISTCS 2.3 Internal parts of the boiler LEGEND PRIMARY CONDENSING HEAT EXCHANGER PREMIX BURNER UNIT (GAS MANIFOLD+BURNER)) PRIMARY CONDENSING HEAT EXCHANGER CONDENSATE DRAIN PIPE IONISATION ELECTRODE IGNITION ELECTRODE VENTURI IGNITION TRANSFORMER ELECTRONIC GAS VALVE 10. 3 BAR PRESSURE RELIEF VALVE - HTG CIRCUIT 11.

  • Page 12: Water Circuit

    TECHNICAL CHARACTERISTCS 2.4 Water circuit LEGEND PRIMARY CONDENSING HEAT EXCHANGER PREMIX BURNER UNIT (GAS MANIFOLD+BURNER) PRIMARY CONDENSING HEAT EXCHANGER CONDENSATE DRAIN PIPE IONISATION ELECTRODE IGNITION ELECTRODE VENTURI IGNITION TRANSFORMER ELECTRONIC GAS VALVE 10. 3 BAR PRESSURE RELIEF VALVE - HTG CIRCUIT LEGEND 11.
  • Page 13 TECHNICAL CHARACTERISTCS Water circuit (installation example) EXTERNAL SENSOR code 73506LA REMOTO LCD STORAGE CYLINDER DHW TEMPERATURE SENSOR code 31368LA (SUPPLIED WITH THE BOILER) REMOTE DHW CYLINDER code 20045LA NOTE THERE IS A STRAINER ON THE HEATING CIRCUIT.. THE INSTALLATION OF AN ADDITIONAL STRAINER ON THE SECONDARY CIRCUIT IS RECOMMENDED.

  • Page 14: Circulation Pump Head/Flow Graph

    TECHNICAL CHARACTERISTCS 2.5 Circulation pump head/flow graph Flow l/h Pump head at maximum speed Pump head at second speed Pump head at minimum speed...

  • Page 15: Printed Circuit Board - Technical Characteristics

    TECHNICAL CHARACTERISTCS ® 2.6 DIGITECH 2 printed circuit board – SM30003 Technical characteristics Adjustments possible by service personnel only Standard (30/80°C) / reduced (25-40°C) central heating temperature • Water hammer prevention function • Central Heating timer - (adjustable from 0 to 7,5 minutes) •...

  • Page 16: Installation (Authorised Personnel)

    INSTALLATION INSTRUCTIONS 3. INSTALLATION (authorised personnel) 3.1 Reference standard This appliance meets the requirements of: AS 4552-2005 Gas fired water heaters for Hot water supply and/or Central Heating - IPX4D rating for electrical appliances. - EMC DIRECTIVE 89/336 CEE - LVD DIRECTIVE 73/23 CEE - BOILER EFFICIENCY DIRECTIVE 92/42 CEE Failure to install a gas appliance correctly and in accordance with the above norms could lead to prosecution.

  • Page 17: Unpacking

    Lift the boiler by grasping the rear part and proceed with the installation. STORAGE & HANDLING Please note that prior installation the Radiant boilers should stored horizontal position with no more than three boilers to a stack; Ensure that the boilers are...

  • Page 18: Installation Boiler

    INSTALLATION INSTRUCTIONS 3.4 Installing the boiler ■ appliance must installed exclusively on a flat vertical solid wall capable of supporting its weight. ■ The boiler should be fitted within the building unless otherwise protected by a suitable enclosure i.e. garage or outhouse. (the boiler may be fitted inside a cupboard.

  • Page 19: Water Connections

    INSTALLATION INSTRUCTIONS 3.5 Water connections In order to safeguard the heat exchanger and circulation pump, especially in case of boiler replacement, it is recommended that the system hot-flushed remove impurities (especially oil and grease) from the pipes and radiators. Make sure that the domestic water and central heating pipes are not used to earth the electrical system.

  • Page 20: Gas Connection

    INSTALLATION INSTRUCTIONS Central heating circuit In order to prevent scaling or deposits in the primary heat exchanger, the mains supply water to the heating circuit must be treated according to the requirements of local standards. This treatment is indispensable in the case where the circuit is frequently topped-up or when the system is often either partially or fully drained.

  • Page 21: Electrical Connections

    The connection to the mains power supply must be carried out by professionally qualified personnel, registered in accordance with current legislation and authorised by Radiant Bruciatori S.p.a. Always check to make sure that the appliance has an efficient earth system. This requirement is only satisfied if it has been properly connected to an efficient earth system installed in accordance with the requirements of current safety standards and carried out by professionally qualified personnel.
  • Page 22 INSTALLATION INSTRUCTIONS Remote control connection Connect the power supply to the terminal board inside the control panel as follows: a. Switch off the power supply at the main switch. b. Remove the front case panel of the boiler. c. Slacken the screws and remove plate A (see fig. 1). d.

  • Page 23: Flue Connections

    INSTALLATION INSTRUCTIONS 3.8 Flue connections In order to ensure that the appliance functions correctly and efficiently, the flue connection between the boiler and the flue terminal must be made using original components specifically designed for condensing boilers. Traditional flue components cannot be used for conveying exhaust fumes from condensing boilers, nor vice versa.
  • Page 24 The linear equivalent of additional bends is as follows: Ø 80/125 x 90° bend = 0.8 m. Ø 80/125 x 45° bend = 0.5 m. N.B.: USE ONLY RADIANT TYPE-APPROVED FLUE SYSTEMS FOR DISCHARGING EXHAUST GASES AND DRAWING COMBUSTION AIR.

  • Page 25: Commissioning The Appliance (Authorised Personnel)

    INSTALLATION INSTRUCTIONS 4. COMMISSIONING THE APPLIANCE 4.1 General warnings The following operations must be carried out by professionally qualified personnel, registered in accordance with current legislation. The boiler leaves the factory pre-set and tested for burning either natural Gas or LPG. Nevertheless, when starting the boiler for the first time, make sure that the information on the rating plate corresponds to the type of gas being supplied to the boiler.

  • Page 26: Filling The System

    INSTALLATION INSTRUCTIONS 4.2 Filling the system Check the properties of the water supply and install the appropriate treatment devices if the mains water has a AIR VENT VALVE hardness rating more than 17.5 °Ck in order to prevent AIR VENT VALVE PLUG scaling and eventual damage to the D.H.W heat exchanger.

  • Page 27: Flushing The System

    INSTALLATION INSTRUCTIONS 4.3 Flushing the system Failure to flush and add inhibitor to the system will invalidate the appliance working. All systems must be thoroughly drained and flushed out using additives – corrosion inhibitors and flushing agents/descalers . To flush out the primary side of this unit. a.

  • Page 28: Starting Up The Boiler

    INSTALLATION INSTRUCTIONS 4.5 Starting up the boiler Once the system has been filled, proceed as follows: Table n°1 • Check that the exhaust flue is free of obstructions and correctly connected to the Gas type boiler; Natural Gas 9.18 • Switch on the power supply to the boiler; 10.3 Universal LPG •...

  • Page 29: Regulating The Appliance (Authorised Personnel)

    REGULATION INSTRUCTIONS 5. REGULATING THE APPLIANCE 5.1 Parameters table PARAMETER PARAMETER N° TYPE OF OPERATION FUNCTION VALUE 00 = 18Kw 01(default) 01 = 25Kw Selects the model of boiler 02 = 29Kw 03 = 34 Kw 04 = 50 Kw 00 = Instantaneous Selects the type of boiler 01 = Boiler with storage tank...

  • Page 30: Setting The Parameters

    REGULATION INSTRUCTIONS 5.2 Setting the parameters To modify the preset values of the parameters reported in the previous table, open the parameter settings menu as follows: 1. Place the On/Off switch in the OFF position. 2. Activate the On/Off switch while keeping P 00 buttons ‘+’...
  • Page 31 REGULATION INSTRUCTIONS PARAMETER P00 – SELECTS THE MODEL OF BOILER 6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter: 00 = 18 Kw 01 = 25 Kw (default) 02 = 29 Kw 03 = 34 Kw 04 = 50 Kw P 00 7.
  • Page 32 REGULATION INSTRUCTIONS PARAMETER P04 – HEATING OUTPUT RISING TIME 6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter: 00 = 0 seconds 01 = 50 seconds (default) 02 = 100 seconds 03 = 200 seconds 04 = 400 seconds P 04 7.
  • Page 33 REGULATION INSTRUCTIONS PARAMETER P07 – CENTRAL HEATING TIMER 6. Use buttons ‘+’ and ‘-‘ to modify the value of the parameter within the prescribed limits: 00 = 0 x 5” = 0” 90 = 90 x 5” = 450” (7,5 min) The default value is 36 = 180”...
  • Page 34 REGULATION INSTRUCTIONS PARAMETER P10 – MINIMUM FAN SPEED SETTING 6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter between: min = 33 Hz ; max = 133 Hz. The default value is adjusted according to the output set in parameter P00.
  • Page 35 REGULATION INSTRUCTIONS PARAMETER P14 – IGNITION SEQUENCE SETTING 6. Use buttons ‘+’ and ‘-’ to modify the value of the parameter between: min = 33 Hz; max = 203 Hz. The default value is adjusted according to the output set in parameter P00.

  • Page 36: Gas Data

    REGULATION INSTRUCTIONS 5.3 Gas data Technical data tables Values Gas type Natural gas 9.18 Universal LPG 10.3 Frequency Gas type Minimum (Hz) Maximum (Hz) Natural gas Universal LPG Gas data table NATURAL GAS Universal LPG Nominal Supply pressure 1.13 2.75 Consumption MJ/h 130.5...

  • Page 37: Converting The Boiler To A Different Gas Type

    The conversion of a boiler from burning natural gas to LPG, or vice versa, must be carried out exclusively by professionally qualified authorised personnel, registered in accordance with current legislation and authorized by Radiant Bruciatori Spa. Check that the gas supply pipe is suitable for the new fuel type.

  • Page 38: Maintenance (Authorised Personnel)

    6. MAINTENANCE (authorised personnel) 6.1 General Warnings All maintenance operations must be carried out by professionally qualified personnel, authorised by Radiant Bruciatori Spa. The frequency of boiler maintenance must comply with current law and, nevertheless, should be carried out once a year.

  • Page 39: Accessing The Boiler

    MAINTENANCE INSTRUCTIONS 6.3 Accessing the boiler All maintenance operations require one or more of the boiler casing panels to be removed. The side panels can only be removed after the front panel has been removed. Front panel: Remove the fixing screws at the lower edge of the front panel.

  • Page 40: Draining The Central Heating And Domestic Hot Water System

    MAINTENANCE INSTRUCTIONS 6.5 Draining the central heating system If the need arises to drain the system, this can be done as follows: Switch the system to “WINTER” mode and ignite the • boiler. Switch off the power supply to the boiler. •...

  • Page 41: Maintenance Operations

    Before carrying out any cleaning or part replacement operations, ALWAYS turn off the ELECTRICITY, WATER and GAS supplies to the boiler. Radiant Bruciatori S.p.a. will not be held responsible for damage to any of the boiler’s components caused by non-compliance with this instruction.
  • Page 42 MAINTENANCE INSTRUCTIONS Cleaning the main exchanger module and combustion unit (see fig. 1) • Disconnect the electrical connections of the primary heat electric fan. exchanger • Disconnect the joint and remove the pipe linking the gas valve to the injector unit (venturi). •...
  • Page 43 MAINTENANCE INSTRUCTIONS Part replacement Ignition and/or flame detection electrodes (see fig. • Un-Plug the electrode wires; ignition electrode • Slacken the fixing screws; • Remove the electrodes. When fitting the new ones, check that the seals are not damaged. Replace if necessary;...
  • Page 44 MAINTENANCE INSTRUCTIONS Safety thermostat (see fig. 1) • Disconnect the connecting wire; • Unscrew fixing screws remove thermostat; • Replace the thermostat and re-assemble the components following the above procedure in reverse order; • Switch on the electricity, water and gas supplies and restart the appliance.
  • Page 45 MAINTENANCE INSTRUCTIONS Electric fan (see fig. 1) • Remove and dismantle the entire burner unit (see 6.6.1 “Cleaning the burner unit”). venturi • Use an 8 mm spanner to unscrew the four nuts securing the electric fan to the gas manifold and then remove the electric fan, noting the positions of the washer and diaphragm.
  • Page 46 MAINTENANCE INSTRUCTIONS Circulating pump (motor body) (see fig. 1) • Close the shut-off valves and drain the central heating circuit of the boiler; circulating Use a 5 mm Allen key to unscrew the four screws pump • securing the motor body to the impeller body; •...
  • Page 47 MAINTENANCE INSTRUCTIONS Modulation circuit board (see fig. 1-2) • Open the control panel (see 6.3 “Accessing the boiler”); • Disconnect all the connectors, remove the regulating knobs, unscrew the four fixing screws and modulation circuit board remove the modulation circuit board; •...
  • Page 48 MAINTENANCE INSTRUCTIONS Primary heat exchanger (see fig. 1) • Close the shut-off valves and drain the central heating circuit of the boiler; • Switch off the power and gas supply to the boiler; primary heat flue connection exchanger • Remove and dismantle the entire burner unit (see chamber 6.6.1 “Cleaning the condensation module and burner unit”);...

  • Page 49: Wiring Diagrams

    MAINTENANCE INSTRUCTIONS 6.7 Wiring diagrams PRINTED CIRCUIT BOARD DIGITECH 2 - SM30003 COD. 40-00016 EXHAUST FAN type RG128/1300-3612 light-blue brown light-blue brown IG: Main Switch TF: Thermo Fuse 102°C TS: Safety thermostat D.H.W. Heating Pacq SR: Heating sensor SS: DHW sensor EV: Fan ER: lonisation electrode EA: Ignition electrode...
  • Page 50 INSTALLATION INSTRUCTIONS Connecting the room thermostat (Option) Connect the wires to the terminal board inside the instrument panel as follows: (Example with WEEK digital weekly chronostat): a. switch off the power supply at the main switch. b. remove the front case panel of the boiler. c.
  • Page 51 INSTALLATION INSTRUCTIONS Connecting the remote controller the outside temperature sensor (option) Connect the wires to the terminal board inside the instrument panel as follows: Outside a. switch off the power supply at the temperature sensor (option) main switch. b. remove the front case panel of the boiler.
  • Page 52 INSTALLATION INSTRUCTIONS Remote control and zone valves wiring For the installation of a zone valve p.c.b, it is necessary to access the main p.c.b for electrical connection (see 6.3 “Accessing the boiler” ) and to activate the parameter P15 (see 5.1 “Parameters table”). Option remote lock - out indicator...
  • Page 53 MAINTENANCE INSTRUCTIONS Remote control, zone valves and telephone control wirings Option remote lock - out indicator...
  • Page 54 MAINTENANCE INSTRUCTIONS Regulating the Flow temperature in accordance with the outdoor temperature The outdoor sensor has to be connected directly to circuit board SM30003. The sensor can thus be managed in one of two ways: In case of remote controller + outdoor temperature sensor installation, the climatic compensation curve is set by •...
  • Page 55 MAINTENANCE INSTRUCTIONS D.H.W. sensor connection PRINTED CIRCUIT BOARD SM30003 HOT WATER SENSOR LEAD MAX. LENGHT 8 mt. REMOTE DHW CYLINDER FLOW FILLING LOOP REMOTE DHW CYLINDER RETURN...

  • Page 56: Troubleshooting

    MAINTENANCE INSTRUCTIONS 6.8 Troubleshooting ERROR PROBLEM POSSIBLE CAUSE REMEDY CODE WITH NO IGNITION NO GAS. CHECK MAINS SUPPLY. IGNITION ELECTRODE BROKEN OR EARTHED. REPLACE PART. GAS VALVE MALFUNCTION REPLACE PART MECHANICAL MINIMUM ADJUSTMENT (ON GAS REGULATE MECHANICAL MINIMUM OR SLOW IGNITION. VALVE) SET TOO LOW OR SLOW IGNITION ADJUSTMENT SET TOO LOW.

  • Page 57: Diagnostics

    MAINTENANCE INSTRUCTIONS 6.9 Diagnostics ■ Error codes: Ionisation Lock Out Safety Thermostat Tripped 102°C Thermo fuse Tripped Low Water Pressure Alarm Heating Sensor Malfunction D.H.W Storage Cylinder Sensor Malfunction Electric Fan Malfunction Parameter Programming Request ■ Function codes : Code Function Description Pressing the “service”...

  • Page 58: Parts List

    MAINTENANCE INSTRUCTIONS 6.10 Parts List Main components CODE DESCRIPTION 30-00043 CONDENSING EXCHANGER 5+1 CBD COMPLETE 24046LA PUMP RSL 15/6 27044LA CONDENSATE TRAP 35031LA IGNITION ELECTRODE 35032LA IONISTATION ELECTRODE 36076LA ELECTRONIC GAS VALVE 36072LA VENTURI 57kW 37032LA 40-00016 PRINTED CIRCUIT BOARD DIGITECH 2 – SM30003 59015LA WATER PRESSURE SWITCH 73516LA...
  • Page 60 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 TECHNICAL DATA MEASUREMENTS PROVIDED INFORMATION PURPOSES ONLY AND ARE NOT BINDING. THE COMPANY RESERVES THE RIGHT TO APPLY VARIATIONS WITHOUT PRIOR NOTIFICATION.

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