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Radiant R2KA 34/20 Installation And Maintenance Manual

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Installation and
Maintenance Manual for
model
R2KA 34 /20
WARNING
If the information in these instructions is not followed exactly, a fire or explosion may result causing property
damage, personal injury or death.
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation on and service must be performed by a qualified installer, service agency or the gas supplier.
R2KA 34 /20 - RAD - ING - Inst.Manual - 2002.1b_CSA
FOR YOUR SAFETY

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Summary of Contents for Radiant R2KA 34/20

  • Page 1 Installation and Maintenance Manual for model R2KA 34 /20 WARNING If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. FOR YOUR SAFETY — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. —...

  • Page 2: Table Of Contents

    SUMMARY SUMMARY INTRODUCTION 1. INSTALLER SECTION 1.1. INSTALLATION 1.1.1. GENERAL INSTALLATION WARNINGS 1.1.2. BOILER LOCATION ENVIRONMENTAL REQUIREMENTS 1.1.3. REFERENCE LEGISLATION 1.1.4. UNPACKING (inch) 1.1.5. OVERALL DIMENSIONS 1.1.6. PIPING LAYOUT/IDENTIFICATION 1.1.7. HYDRAULIC CONNECTION KIT 1.1.8. POSITIONING AND CLEARANCES TO COMBUSTIBLE MATERIAL AND SERVICE CLEARANCES 1.1.9.
  • Page 3 SUMMARY 2.2.11. 3-WAY VALVE OPERATION 2.2.12. WIRING DIAGRAM 2.2.13. ACCESSING THE BOILER 2.2.14. ACCESSING THE ELECTRONIC BOARD 2.2.15. SYSTEM EMPTYING 2.2.16. BOILER MAINTENANCE 2.2.17. FAULT SIGNALLING CODES 2.2.18. ACTIVE FUNCTIONS SIGNALLING CODES 2.2.19. CONVERSION TO A DIFFERENT GAS TYPE 2.2.20. POSITIONS OF THE ELECTRODES R2KA 34 /20 - RAD - ING - Inst.Manual - 2002.1_CSA...

  • Page 4: Introduction

    INTRODUCTION INTRODUCTION WARNING DANGER It identifies information related to a Before starting any operation it is mandatory to read general danger that if not complied with, may cause this instruction manual, in relation to the activities serious personal damage or even death. performed as described in each relevant section.
  • Page 5 PRODUCT CONFORMITY RADIANT BRUCIATORI spa with reference to ANSI Z21.13-2017 • CSA 4.9-2017 GAS FIRED LOW PRESSURE STEAM AND HOT WATER BOILERS, declares that its gas boilers are professionally manufactured.

  • 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

    WARNING WARNING Use only original RADIANT optional or kit This boiler should be installed only by accessories (including electrical). qualified service technician, having the appropriate technical training in the field for the installation and 1.1.2.

  • Page 9: Reference Legislation

    1. INSTALLATION boiler, sufficient air openings must be available to provide fresh air when all appliances are operating simultaneously. It is essential that in rooms where the boiler is installed to provide as much air as required by normal combustion of the gas consumed by the varius appliances.

  • Page 10: Unpacking

    1. INSTALLATION 1.1.4. UNPACKING WARNING Please unpack the boiler just before installing it. The Company is not responsible for the damages caused to the device due to incorrect storage. WARNING packing elements (cardboard box, wooden crate, nails, fasteners, plastic bags, expanded polystyrene, etc.) are dangerous and must be kept out of the reach of children, they should be biscarded properly.

  • Page 11: Overall Dimensions (Inch)

    1. INSTALLATION 1.1.5. OVERALL DIMENSIONS (inch) fig. 2 1.1.6. PIPING LAYOUT/IDENTIFICATION 1.1.7. HYDRAULIC CONNECTION KIT An hydraulic kit equipped is supplied by RADIANT fig. 3 (see fig.4). fig. 4 2.7 3.1 3.19 R - CENTRAL HEATING RETURN Ø 3/4” * R - CENTRAL HEATING RETURN Ø...

  • Page 12: Positioning And Clearances To Combustible Material And Service Clearances

    1. INSTALLATION 1.1.8. POSITIONING AND CLEARANCES TO COMBUSTIBLE MATERIAL AND SERVICE CLEARANCES The boiler must be installed only on a vertical solid wall, able to sustain its weight. This boiler has been certified to be installed with “0” clearances to combustible material. In order to allow the access inside the boiler for maintenance operations, follow the minimum A - 7.8 inch...

  • Page 13: Circulator Performance Curves

    1. INSTALLATION WARNING To ensure condensate properly drains fig. 7 from the heat exchanger, and avoid any issues that may arise from the stagnation of the condensate within the product itself, it is extremely important that the unit is mounted BOTH level and plumb to the wall ( as per figure 7).

  • Page 14: Water Connections

    1. INSTALLATION 1.1.10. WATER CONNECTIONS treatment devices, for residues presence. Please install an inline filter. DANGER Make sure that the tubes of the water and The pressure of the cold inlet water should be heating unit are not used as grounding system for the between 7.2 psi (0.5 bar) and 150 psi (10.34 bar).

  • Page 15: Circulating Loop

    1. INSTALLATION 1.1.11. D.H.W. CIRCULATING LOOP In order to joint the D.H.W out loop pipe, proceed as follows: › unscrew the ½” cap A (fig.9); › joint the nipple to the D.H.W. circulating pipe. fig. 9 RC- D.H.W. RECIRCULATING LOOP VR- NON-RETURN VALVE (CHECK VALVE) CIRCULATOR FIXTURES...

  • Page 16: System Filling

    1. INSTALLATION 1.1.12. SYSTEM FILLING WARNING For system filling use only clean tap water. WARNING If the system is filled by adding ethylene glycol-type chemical agents it is suggested to install a system fender on the hydronic system in order to separate the heating circuit from the domestic circuit.

  • Page 17: Filling The Condensate Collection Siphon

    1. INSTALLATION Unscrew the circulator cap (2-fig.10) to release any air bubbles and close it to prevent water leakage; Open the air relief valves of the radiators and check the air removal process. When the water starts to leak close the radiators air relief valves.
  • Page 18 1. INSTALLATION CONDENSATE DRAIN The acidity of the condensate can be controlled through the use of appropriate tools for the The boiler produces a significant amount of determination of Ph, such as the litmus paper. condensate during operation. This condensation has an acidic pH of 3-5.

  • Page 19: Anti-Freeze Protection

    1. INSTALLATION 1.1.14. ANTI-FREEZE PROTECTION DILUTION PERCENTAGE CLEANPASS FLUIDO AG The boiler is protected against freezing using the electronic board design with a function that start the burner and heat the water in the boiler when ANTIFREEZE - TEMPERATURE their water temperature goes below the minimum ETHYLENE GLYCOL FREEZING POINT pre-set values, protecting the boiler up to an...

  • Page 20: Gas Connection

    1. INSTALLATION 1.1.15. GAS CONNECTION 1.1.16. ELECTRICAL CONNECTION WARNING DANGER The gas piping must be installed according The equipment is electrically safe only to all local and state codes, or in absence of local and if it is properly connected to an efficient grounding state codes, with the latest “Natural gas and propane system, performed in compliance with the safety installation code”, CAN/CSA-B 149.1 or “National...

  • Page 21: Power Supply

    1. INSTALLATION 1.1.17. POWER SUPPLY To power the boiler connect the electrical cables to the terminal inside the control panel as follows: DANGER Cut off the voltage from the main switch. › remove the boiler's front casing (refer to 2.2.13 ACCESSING THE BOILER).

  • Page 22: Optional Electrical Connections

    1. INSTALLATION 1.1.18. OPTIONAL ELECTRICAL CONNECTIONS To wire the options below: • (SE) EXTERNAL TEMPERATURE PROBE COD. 73518LA • (TA) ENVIRONMENT THERMOSTAT • (CR) REMOTE CONTROL OPEN THERM COD. 40- 00017 use the terminal placed inside the control panel as follows: DANGER Shutoff the voltage from the main switch.
  • Page 23 1. INSTALLATION To wire the options below: DANGER Shutoff the voltage from the main switch. • (PM) MODULATING PUMP › Remove the boiler's front casing (refer to 2.2.13 • (TP) DOMESTIC HOT WATER PRE-HEATING ACCESSING THE BOILER). DEACTIVATION TIMER › Remove the crankcase of the control panel (see •...

  • Page 24: Venting

    (loosely supplied in boiler). It is recommended to install discharge systems approved Use of cellular core PVC (ASTM F891), cellular by Radiant. core CPVC, or Radel® (polyphenylsulfone) in non- metallic venting systems is prohibited. WARNING...
  • Page 25 1. INSTALLATION 15 ft Regulator vent outlet In the event no regulator is present, H and l can be disregarded. fig. 18 Canadian installations US installations Clearance above grade, 12 in (30 cm) 12 in (30 cm) veranda, porch, deck, or balcony Clearance to window or door Non direct vent:...
  • Page 26 1. INSTALLATION Canadian installations US installations Clearance to unventilated soffit 12 in (30 cm) 12 in (30 cm) Clearance to outside corner Zero Clearance Zero Clearance Clearance to inside corner In accordance with the local installation codes and the requirements of the local gas supplier. Clearance to each side of 3 ft (91 cm) within a height 15 ft In accordance with the local...

  • Page 27: Types Of Exhaust Systems

    1. INSTALLATION 1.1.20. TYPES OF EXHAUST SYSTEMS The use of thermal insulation shall be prohibited on non-metallic vent pipe and fittings in conditioned space. GENERAL INTRODUCTION However, for vent runs in unconditioned space where freezing is a concern, a minimum of 1/2” thick Armaflex The venting installation must conform to the is recommended.
  • Page 28 2” 19698RAD 3” 196985RAD 4” 196986RAD * Kits must be purchased via Radiant North America for proper kit. I (b) - THROUGH THE ROOF LNSTALLATION: 2ZDCTV35 Z-DENS Concentric Termination Vertical Through the roof installations can terminate with 3”/5” (80/125 mm) two separate pipes or with a co-axial terminal.
  • Page 29 1. INSTALLATION II (a) - THROUGH THE WALL INSTALLATION: Please refer to figure ‘E’ for through the wall single vent installations. II (b) - THROUGH THE ROOF INSTALLATION: Please refer to figure ‘F’ for through the roof single vent installations. fig.
  • Page 30 1. INSTALLATION AIR INTAKE / FLUE EXHAUST Ø 3” (80 MM) cod.: 65-00433 ADAPTORS WITH PP TEST POINT (COD.: 65- 00433) These adapters are to be installed on co-linear vent (two separate pipes for exhaust and combustion air), and single exhaust vent (using room air for combustion).
  • Page 31 Ø 2.3/3.9 in 2PPC-HKRAD (fig. 20) (Ø 60/100 mm) Ø 3.1/4.9 in 3PPC-HKRAD (fig. 21) (Ø 80/125 mm) * Kits must be purchased via Radiant North America for proper kit. Ø2.3 in (Ø60 mm) Ø3.9 in (Ø100 mm) fig. 21...
  • Page 32 1. INSTALLATION 1.1.21. TABLE 1: ALLOWABLE VENT LENGTHS Minimum Length Equivalent Vertical and length Vertical Vent Horizontal and Horizontal Configuration Pipe Size for Vent Run for vent run Gas Type Exhaust Vent Intake Vent Co-axial vent Ø2.3/3.9” 1 ft (0.3 m) + 32 ft (10 m) + Natural or Polypropylene...
  • Page 33 44 ft (13.4 m) 196116 197117 52CVKGVS6503-44 52CVKGVSF9003-44 4” (100 mm) 36 ft (10.9 m) 196021 197021 52CVKGVS6504 52CVKGVSF9004-36 *Kits must be purchased via Radiant North America for proper kit. R2KA 34 /20 - RAD - ING - Inst.Manual - 2002.1_CSA...
  • Page 34 1. INSTALLATION Polypropylene venting listed to ULC-S636 Diameter Length Brand Part Number Description 3/5” (80/125mm) Z-Dens 2ZDACLC3335 Adaptor Collinear to Concentric 3” (80mm) 12” (305mm) Z-Dens 2ZDP312 Single Wall Pipe 24” (305mm) Z-Dens 2ZDP324 Single Wall Pipe 36” (305mm) Z-Dens 2ZDP336 Single Wall Pipe 72”...

  • Page 35: Support Centre Section

    1. SUPPORT CENTER SECTION 2. SUPPORT CENTRE SECTION All operations described below relative to first start-up, maintenance and replacement and should be performed only by qualified service technician.

  • Page 36: First Start-Up

    2. FIRST START-UP 2.1. FIRST START-UP 2.1.1. PRELIMINARY OPERATIONS › Make sure that the heating system valves are FOR FIRST START-UP open; The first start-up operations consist of checking › Make sure that there is no intake of gaseous the correct installation, adjustment and operation products within the system;...

  • Page 37: Boiler Commissioning

    2. FIRST START-UP 2.1.2. BOILER COMMISSIONING WARNING Make sure that the system is correctly filled. Proceed with boiler commissioning as follows: › Power the boiler. THE START-UP SYSTEM WILL AUTOMATICALLY ACTIVATE THE SYSTEM AIR RELIEF CYCLE FUNCTION DISPLAYED ON SCREEN WITH CODE “F33”...

  • Page 38: Co2 Value Check And Calibration

    2. FIRST START-UP 2.1.3. CO2 VALUE CHECK AND › After each adjustment variation on screw ‘1’ CALIBRATION (fig. 23) of the gas flow adjuster you have to wait for the boiler to stabilize itself to the set value WARNING (about 30 seconds). The CO value should be measured with the casing assembled, while the gas valve could only...

  • Page 39: Accessing And Programming The Parameters

    2. FIRST START-UP 2.1.4. ACCESSING AND PROGRAMMING THE PARAMETERS To access the parameters menu and adjust their values, follow the procedure below: Press the button ‘ ’ to select the OFF mode displayed using the symbol ‘ ’. fig. 24 Hold at the same time the keys ‘...
  • Page 40 2. FIRST START-UP Use the keys ‘ ’ and ‘ ’ of the domestic circuit to change the value of the parameter. fig. 27 Press the key ‘ ’ to confirm the action and wait for the display to stop blinking, indicating the adjustment was implemented.

  • Page 41: Digitech Cs (Miah402) Parameters Table

    BOILER MODEL SELECTION 0 - 10 0 - 7 = N.A. 8 = R2K 24 - R2KA 24/8 9 = R2K 34 - R2KA 34/20 - R1K 34/B 10 = R1K 55-R2K 55 BOILER TYPE SELECTION 0 - 5 0 = INSTANTANEOUS > R2K 1 = N.A.
  • Page 42 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION HEATING RUN-UP 0 - 4 0 = (DISABLED) THROUGH THIS PARAMETER YOU CAN SET THE TIME, DURING START-UP PHASE, NECESSARY FOR THE BOILER TO REACH THE 1 = 50 SECONDS MAXIMUM SET POWER (ON THE HEATING SIDE). (SET BY DEFAULT) 2 = 100 SECONDS 3 = 200 SECONDS...
  • Page 43 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION DOMESTIC FAN MINIMUM SPEED ADJUSTMENT VALUE THE VALUE IS EXPRESSED IN THROUGH THIS PARAMETER YOU CAN SET THE FAN MINIMUM HERTZ SPEED IN DOMESTIC PHASE, THAT CORRESPONDS TO THE PA R A M E T E R (1HZ = 30 RPM) MINIMUM BURNER POWER DURING A REQUEST TO OPERATE IN DOMESTIC MODE.
  • Page 44 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION ANTI-LEGIONELLA FUNCTION 0 - 1 0 = DISABLED (ONLY FOR ACCUMULATION BOILER) THROUGH THIS PARAMETER YOU CAN ACTIVATE/DEACTIVATE 1 = ENABLED (PRE-SET BY “ANTI LEGIONELLA” HEAT TREATMENT OF THE ACCUMULATION DEFAULT ON ACCUMULATION BOILER.
  • Page 45 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION CLIMATE COMPENSATION CURVE 0 - 30 (SET BY DEFAULT AT 15) THE (ONLY WITH EXTERNAL PROBE CONNECTED) NUMBERING OF THE VALUE YOU CAN CONNECT AN EXTERNAL TEMPERATURE PROBE (SEE CORRESPONDS TO ‘KD’ CURVES 1.1.16 ‘ELECTRICAL CONNECTIONS’) THAT AUTOMATICALLY ON THE CHART (SEE CHART CHANGES THE DELIVERY TEMPERATURE BASED ON THE...
  • Page 46 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION MINIMUM HEATING SETPOINT 68 - 104 THE VALUE IS EXPRESSED IN °F THROUGH THIS PARAMETER YOU CAN SET THE USER- ADJUSTABLE MINIMUM HEATING TEMPERATURE. MAXIMUM HEATING SETPOINT 104 - 190 THE VALUE IS EXPRESSED IN °F THROUGH THIS PARAMETER YOU CAN SET THE USER- ADJUSTABLE MAXIMUM HEATING TEMPERATURE.
  • Page 47 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION MODBUS COMMUNICATION BAUD RATE 0 - 5 0 = 9600 BY MEANS OF THIS PARAMETER, IT IS POSSIBLE TO SELECT THE MODBUS COMMUNICATION BAUD RATE SUPPORTED BY THE 1 = 1200 SAME INTERFACE. 2 = 2400 3 = 4800 4 = 9600...
  • Page 48 2. FIRST START-UP PARAMETER DESCRIPTION RANGE FUNCTION ENABLING THE SAFETY CHECK, IN CASE OF INSUFFICIENT 0 - 1 0 = DISABLED CIRCULATION UPON THE IGNITION. THE ACTIVATION OF THIS PARAMETER, AGAINST EACH IGNITION 1 = ENABLED (PRE-SET BY OF THE BURNER, LEADS TO THE VERIFICATION OF THE CORRECT DEFAULT) OPERATION OF THE CIRCULATING PUMP.

  • Page 49: Combustion Blower Frequency/Heat Capacity Diagram

    2. FIRST START-UP 2.1.6. COMBUSTION BLOWER FREQUENCY/HEAT CAPACITY DIAGRAM 11601 10918 10236 95539 88715 81891 75067 68242 61418 Natural Gas 54594 Propane 47769 40945 34121 27297 20472 13648 (Hz) fig. 31 MINIMUM MAXIMUM MINIMUM MAXIMUM FREQUENCY IN FREQUENCY IN HEATING HEATING DOMESTIC HOT DOMESTIC HOT...

  • Page 50: Maintenance

    All maintenance operations must be distances with respect to the burner; performed by qualified staff and authorized by RADIANT BRUCIATORI spa. › check the sealing of the gas components, and replace the gaskets if necessary; WARNING The maintenance operations must be ›...

  • Page 51: Technical Data

    2. MAINTENANCE 2.2.8. TECHNICAL DATA Model R2KA 34 /20 Maximum nominal heat capacity in heating circuit btu/h - (kW) 116013 - (34) Maximum nominal heat capacity in domestic circuit btu/h - (kW) 116013 - (34) Minimum nominal heat capacity in heating circuit btu/h - (kW) 15013 - (4.4) Minimum nominal heat capacity in domestic circuit...
  • Page 52 2. MAINTENANCE (*) NOTE: THESE ARE CONNECTION SIZES BEFORE VALVE KIT/CONNECTION CONVERSION KIT IS INSTALLED. Electrical specifications Voltage-frequency V/Hz 120/60 Max Absorbed Power Gas supply Nominal supply pressure - Natural Gas psi - (mbar) 0.25 - (17.4) Heating Max. fan speed - Natural Gas D.H.W Max fan speed - Natural Gas Heating Min.

  • Page 53: Technical Assemblytechnical Assembly

    2. MAINTENANCE 2.2.9. TECHNICAL ASSEMBLYTECHNICAL ASSEMBLY fig. 32 23. DIVERTER VALVE EXHAUST SAFETY HIGH LIMIT SWITCH 24. FLOW SWITCH INTEGRATED HEAT EXCHANGER 25. CHECK VALVE BURNER UNIT 26. FLOW LIMITER IONIZATION ELECTRODE 27. THERMAL EXPANSION TANK COMBUSTION BLOWER CONDENSATE COLLECTION SIPHON PRESSURE RELIEF VALVE CIRCULATOR ANODE...

  • Page 54: Internal Piping Schematic

    2. MAINTENANCE 2.2.10. INTERNAL PIPING SCHEMATIC fig. 33 11. CENTRAL HEATING TEMPERATURE PROBE R. CENTRAL HEATING RETURN 12. WATER TEMPERATURE HIGH LIMIT SWITCH C. DOMESTIC HOT WATER OUTLET 13. AIR SUCTION TUBE G. GAS INLET 14. PROPORTIONAL VENTURI SC. CONDENSATE DRAIN 15.

  • Page 55: 3-Way Valve Operation

    2. MAINTENANCE 2.2.11. 3-WAY VALVE OPERATION Important: The working position of the 3-way valve is indicated by the color (Red or Blue) visible in the inside of the valve. (see ‘C’ - fig. 34). › The RED color (with C-A) indicates the operation in the Domestic Hot water mode.

  • Page 56: Wiring Diagram

    2. MAINTENANCE 2.2.12. WIRING DIAGRAM 120 V 120 V 60 Hz 60 Hz 40-00087 40-00092 40-00088 40-00106 40-00300 31388LA 31428LA CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. Pacq fig.

  • Page 57: Accessing The Boiler

    2. MAINTENANCE 2.2.13. ACCESSING THE BOILER For the majority of the control and maintenance operations you have to remove one or more panels of the casing. The side panels can be removed only after removing the front panel. To intervene on the front of the boiler proceed as follows: ›...

  • Page 58: Accessing The Electronic Board

    2. MAINTENANCE 2.2.14. ACCESSING THE ELECTRONIC BOARD In order to intervene on the wirings of the control panel, please proceed as follows: DANGER Cut off the voltage from the main switch. › Grab at the same time the support brackets of the control panel (fig.

  • Page 59: System Emptying

    2. MAINTENANCE 2.2.15. SYSTEM EMPTYING HEATING SYSTEM EMPTYING Whenever you need to empty the system, proceed as follows: › switch the boiler to “WINTER” mode and activate it; › turn off the main power supply switch or unplug the appliance; ›...

  • Page 60: Boiler Maintenance

    2. MAINTENANCE 2.2.16. BOILER MAINTENANCE fig. 39 It’s necessary to check and replace the magnesium anode after a year or more frequently if the quality and the water worn require it. In order to check the anode functioning it’s necessary to open the cap ‘V’ (fig.39) situated on the top of the boiler.

  • Page 61: Fault Signalling Codes

    2. MAINTENANCE 2.2.17. FAULT SIGNALLING CODES To view the last 5 fault signalling codes chronologically, starting with the most recent one, activate the ‘OFF’ mode by pressing the FUNCTION ‘ ’ key and hold the key INFO ‘ ’ for 5 seconds. Use keys ‘ ’...
  • Page 62 2. MAINTENANCE CODE FAULT POSSIBLE CAUSE SOLUTION RESET WATER TEMP. HIGHT THERMOSTAT CABLE CHECK THE WIRING: MANUAL RESET LIMIT SWITCH DISCONNECTED; (PRESS THE RESET ‘ ’ KEY). BROKEN HIGH LIMIT. REPLACE IT. EXHAUST SAFETY HIGH HIGH LIMIT BROKEN; REPLACE IT; MANUAL RESET LIMIT SWITCH...
  • Page 63 2. MAINTENANCE CODE FAULT POSSIBLE CAUSE SOLUTION RESET COMBUSTION BLOWER COMBUSTION BLOWER REPLACE IT; AUTOMATIC. BOARD BROKEN; COMBUSTION BLOWER REPLACE IT; BROKEN; FAULTY POWER SUPPLY REPLACE IT. CABLE. INSUFFICIENT FAULTY POWER SUPPLY REPLACE IT. MANUAL RESET CIRCULATION CABLE OF THE CIRCULATOR (PRESS THE RESET PUMP.

  • Page 64: Active Functions Signalling Codes

    2. MAINTENANCE 2.2.18. ACTIVE FUNCTIONS SIGNALLING CODES CODE FUNCTION DESCRIPTION CHIMNEY SWEEP ACTIVE YOU CAN ACTIVATE IT BY HOLDING FOR 7 SECONDS THE RESET ‘ ’ KEY AND YOU CAN DEACTIVATE IT BY TURNING OFF THE BOILER. THIS FUNCTION BRINGS THE BOILER TO ITS MINIMUM AND MAXIMUM HEATING POWER FOR 15 MINUTES DEACTIVATING THE MODULATION FUNCTION.

  • Page 65: Conversion To Adifferent Gas Type

    2. MAINTENANCE 2.2.19. CONVERSION TO A DIFFERENT GAS TYPE ATTENTION Make sure that the gas induction tube is suitable for the new type of fuel with which the boiler is supplied. › loosen the two screws ‘1’ (fig. 40) from the fastening clamp, and remove the air suction tube;...

  • Page 66: Positions Of The Electrodes

    2. MAINTENANCE 2.2.20. POSITIONS OF THE ELECTRODES If the boiler does not restart, check the positions of the electrodes (especially the ignition electrode). LIGHT UP ELECTRODE DETECTION ELECTRODE 0.16" (3mm) LIGHT UP ELECTRODE LIGHT UP ELECTRODE DETECTION ELECTRODE fig. 43 R2KA 34 /20 - RAD - ING - Inst.Manual - 2002.1_CSA...
  • 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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