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.
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CONTENTS Maintenance (authorised personnel) 6.1 General warnings pag. 6.2 Boiler inspection 6.3 Accessing the boiler 6.4 Draining the central heating and domestic hot water system 6.5 Maintenance operations 6.6 Wiring diagrams 6.7 Troubleshooting 6.8 Diagnostics 6.9 Parts list...
GENERAL INFORMATION 1. GENERAL INFORMATION 1.1 General warnings Professionally qualified authorised in accordance with current laws and standards and in line with the manufacturer’s instructions must install the appliance. With ‘Professionally qualified authorised is intended a personnel with technical knowledge in the field of installation and maintenance of components for central heating water production system for domestic and industrial use.
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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. •...
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 ≤...
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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.
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...
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) •...
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.
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...
INSTALLATION INSTRUCTIONS 3.4 Installing the boiler appliance must installed ■ exclusively on a flat vertical solid wall capable of supporting its weight. In order to allow access to the interior of the boiler for maintenance purposes, it is important that the necessary clearances indicated in figure 1 are respected.
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.
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.
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.
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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.
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.
INSTALLATION INSTRUCTIONS 4. COMMISSIONING THE APPLIANCE 4.1 General warnings The following operations must be carried out by professionally qualified authorised, 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.
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 scaling AIR VENT VALVE PLUG and eventual damage to the D.H.W heat exchanger.
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.
INSTALLATION INSTRUCTIONS 4.5 Frost protection The appliance printed circuit board has a built-in frost protection with functions that protect the boiler providing to start the burner and heat the interested parts + components when the temperature goes below minimum set values. The device comes into operation in the following cases: •...
INSTALLATION INSTRUCTIONS 4.6 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; 9.18 Natural Gas • Switch on the power supply to the boiler; Universal LPG 10.3 •...
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...
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 ‘+’...
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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.
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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.
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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”...
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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.
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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.
REGULATION INSTRUCTIONS 5.3 Gas data Technical data tables Values Gas type 9.18 Natural gas 10.3 Universal LPG 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...
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.
All maintenance operations must be carried out by professionally qualified personnel, authorised by Radiant Bruciatori Spa. For servicing within Australia refer to contact details on page 2 of this manual. The frequency of boiler maintenance must comply with current law and, nevertheless, should be carried out once a year.
MAINTENANCE INSTRUCTIONS 6.3 Accessing the boiler To access the control panel proceed as follows: • open the control panel bottom cover using the provided key • rotate it downwards (see fig.1) Fig. 1 To access the electrical connections of the control panel, proceed as follows: •...
MAINTENANCE INSTRUCTIONS 6.4 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. •...
Before carrying out any cleaning or part exchanger 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 non- premix burner unit compliance with this instruction.
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MAINTENANCE INSTRUCTIONS Part replacement Ignition and/or flame detection electrodes (see fig. • Un-Plug the electrode wires; ignition • Slacken the fixing screws; electrode • Remove the electrodes. When fitting the new ones, check that the seals are not damaged. Replace if necessary;...
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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.
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MAINTENANCE INSTRUCTIONS Electric fan (see fig. 1) • Remove and dismantle the entire burner unit (see venturi 6.6.1 “Cleaning the burner unit”). • 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.
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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; •...
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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; •...
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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”);...
MAINTENANCE INSTRUCTIONS 6.6 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...
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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.
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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.
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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...
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MAINTENANCE INSTRUCTIONS Remote control, zone valves and telephone control wirings Option remote lock - out indicator...
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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 the remote itself (see remote control installation and operating manual).
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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...
MAINTENANCE INSTRUCTIONS 6.7 Troubleshooting ERROR PROBLEM POSSIBLE CAUSE REMEDY CODE WITH NO IGNITION CHECK MAINS SUPPLY. NO GAS. REPLACE PART. IGNITION ELECTRODE BROKEN OR EARTHED. REPLACE PART GAS VALVE MALFUNCTION MECHANICAL MINIMUM ADJUSTMENT (ON GAS REGULATE MECHANICAL VALVE) SET TOO LOW OR SLOW IGNITION MINIMUM OR SLOW IGNITION.
MAINTENANCE INSTRUCTIONS 6.9 Parts List Main components CODE DESCRIPTION 30-00043 CONDENSING EXCHANGER 5+1 CBD COMPLETE PUMP RSL 15/6 24046LA 27044LA CONDENSATE TRAP 36076LA ELECTRONIC GAS VALVE 36072LA VENTURI 57kW 37032LA 40-00016 PRINTED CIRCUIT BOARD DIGITECH 2 – SM30003 59015LA WATER PRESSURE SWITCH 73516LA HTG CLIP SENSOR FOR PIPE 17/18 mm BLUE 73517LA...
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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.