Ideal Boilers Classic RS 245 P, Installation And Servicing

Page 1: ...e No Classic RS 245 P 41 387 14 Classic RS 255 P 41 387 15 Propane Gas Models Only Deluxe models G C Appliance No Classic LXRS 245 P 41 387 37 Classic LXRS 255 P 41 387 38 CAUTION To avoid the possibility of injury during the installation servicing or cleaning of this appliance care should be taken when handling edges of sheet steel components ...

Page 2: ...so available as an optional extra suitable for standard boilers only G E N E R A L CONTENTS Air Supply 6 Boiler Assembly Exploded view 7 Boiler Clearances 4 Burner Assembly Exploded view 25 Electrical Connections 13 Electrical Diagram 13 Electrical Supply 6 Extension Ducts Fitting 12 Fault Finding 24 Flue Fitting 12 Flueing 5 Gas Safety Regulations 2 Gas Supply 5 Health Safety Document No 635 4 In...

Page 3: ...RS 245 P RS 255 P Boiler input kW 16 5 20 1 Btu h 56 250 68 600 Gas consumption l s ft3 h 0 17 22 5 0 21 27 5 Boiler output kW 13 2 16 1 Btu h 45 000 55 000 Burner Setting mbar 35 8 35 7 pressure HOT in w g 14 3 14 3 Inlet pressure mbar in w g 37 0 14 8 37 0 14 8 Seasonal Efficiency SEDBUK 72 2 71 1 Table 1 General Data G E N E R A L Table 2 Performance Data To obtain the gas consumption a For l s...

Page 4: ...boiler may be fitted on a combustible wall and insulation between the wall and the boiler is not necessary unless required by the local authority The boiler must not be fitted outside If using the Classic Sealed System Unit Standard models only then refer to the instructions packed with the unit for the necessary clearances Front clearance 450mm 17 3 4 from the front of the boiler casing Minimum f...

Page 5: ...low adequate space for servicing in front of the boiler and for air circulation around the boiler see section on Air Supply z z z z z For the minimum clearances required for safety and subsequent service see Frame 2 In addition sufficient boiler clearance may be required to allow lifting access to the wall mounting plate GAS SUPPLY A local propane supplier should be consulted at the installation p...

Page 6: ...c radiator valves are used the space heating temperature control over a living dining area or hallway having a heating requirement of at least 10 of the boiler heat output should be achieved using a room thermostat whilst other rooms are individually controlled by thermostatic radiator valves However if the system employs thermostatic radiator valves on all radiators or two port valves without end...

Page 7: ... 11 Control thermostat 12 Igniter button 13 Programmer optional 14 Interpanel 15 Thermostat pocket 16 Overheat thermostat if fitted 17 Main burner 18 Combustion chamber 19 Boiler drain point 20 Boiler thermostat 21 Heat exchanger 22 Flue baffles if fitted LEGEND 1 Collector hood 2 Boiler flue duct 3 Gravity flow pipe 4 Pumped return pipe 5 Gravity return pipe 6 Pumped flow pipe ...

Page 8: ...sing bottom panel 3 Remove the boiler from its packaging base The boiler may now be stood on its controls support protection frame to ease handling and installation 4 Unpack the boiler terminal box and if applicable the extension flue box es Hardware Pack z 50mm x No 14 wood screw 3 off z 50mm x No 10 wood screw 3 off z Wall plug 6 off z Data plate indicator arrow 1 off z Cover plate painted Optio...

Page 9: ...mum requirements to avoid cavitation Should these conditions not apply either lower the pump position or raise the cistern above the minimum requirement specified by Caradon Plumbing Ltd Note A cold water feed must be available back to the boiler when all automatic valves are in the closed position refer to BS 6798 and when close coupled the feed must not be in a vertical leg System return Connect...

Page 10: ...ree plastic plugs Drill the jacking plate screw and the top cover plate screw holes 7mm 9 32 and insert the plastic plugs 4 Remove the template from the wall NOTE THE WALL MUST BE OF SUITABLE LOAD BEARING CAPACITY 1 Cut the appropriate hole in the wall for insertion of the terminal assembly Note The terminal must not come into contact with a combustible material such as that used in the non standa...

Page 11: ...n the boiler back panel onto the angled tabs on the top of the wall mounting plate DO NOT USE THE BURNER ASSEMBLY FOR LIFTING 2 Adjust the flue to its horizontal position by tilting the boiler forward at the bottom then turning the jacking plate Release and check alignment with a spirit level Secure the jacking plate with a No 10 x 50 mm wood screw 3 Fit the top cover plate in position above the b...

Page 12: ...he remaining sachet of sealant provided 7 Fasten the terminal grille to the flue and air ducts using the 2 securing screws 6 provided INST ALLA TION INSTALLATION 13 FITTING THE FLUE ASSEMBLY Typical minimum overlap 50mm 2 5 Terminal grille 6 Terminal grille securing screws Legend 1 Boiler air duct 2 Boiler flue duct 3 Terminal air duct 4 Terminal flue duct Flue terminal assembly 3 Remove the termi...

Page 13: ...ead is longer than the live and neutral so that if the cable slips in its anchorage the current carrying conductors become taut before the earth conductor and that the cable is routed through the strain relief clamp Ensure all cables are secure and that no basic insulation is accessible outside of the control box 3 Controls that switch the circulation pump only ON and OFF e g a room thermostat MUS...

Page 14: ...tat should be wired into the system This is usually done at the programmer in which case the programme selector switches are set to Off and all other controls MUST be left in the running position The frost stat should be sited in a cold place but where it can sense heat from the system Wiring should be as shown with minimal disturbance to other wiring of the programmer Designation of the terminals...

Page 15: ...uoted in Table 2 page 3 The inlet pressure measured at the gas control valve must be 37mb 14 Set the boiler thermostat control knob to OFF Remove the pressure gauge tube and tighten the sealing screw in the pressure test point Relight and check for gas soundness at the pressure test point 15 Deluxe Model LX Refit the controls casing bottom panel and screws Standard Model Refit the controls pod and...

Page 16: ... the flame failure device to shut down identified by a click within the gas control valve b Open the gas service cock and relight the pilot 3 With the burner alight again turn the gas control knob clockwise until resistance is felt and then release it The burner and pilot flame should shut down immediately Note A latch in the gas control provides a safety delay period before the pilot can be relit...

Page 17: ...ox forward and downward to disengage 6 Pull off the electrode lead at the piezo unit 7 Open the clips retaining the thermocouple and HT lead Remove the air box assembly to a safe place for inspection and cleaning g If the appliance has been installed in a compartment check that the ventilation areas are clear The servicing procedures are covered more fully in Frames 30 to 35 and must be carried ou...

Page 18: ...e pilot refer to Frame 25 and check that the pilot flame envelopes the tip of the thermocouple and is approximately 25 mm 1 long The pilot is factory set to maximum and no further adjustment should be necessary However if the pilot flame appears small check the pilot injector Refer to Frame 39 Re assemble in reverse order to that shown in Frames 30 to 33 1 Refit the flue baffles and retain with th...

Page 19: ... Retighten the two nuts to ensure an airtight seal Do NOT overtighten 5 Replace the boiler casing Note Standard model illustrated REPLACEMENTOFP ARTS The boiler MUST NOT be operated if the casing is not fitted 3 7 SIGHTGLASS REPLACEMENT 3 8 PIEZO UNIT REPLACEMENT 1 Refer to Frame 36 2 Remove the control box fixing screw Pull the box forward and downward to disengage 3 Disconnect the ignition lead ...

Page 20: ...everse order Ensure that all of the electrical connections are correctly remade refer to Wiring Diagrams Frames 19 23 5 Refit the control box 6 Replace the boiler casing 7 Check the operation of the control thermostat 4 1 CONTROL THERMOSTAT REPLACEMENT 1 Refer to Frame 36 2 Unclip the thermostat capillary from the 2 clips situated on the back panel 3 Remove the thermostat phial from the pocket in ...

Page 21: ...nt peg on the thermostat sits in the small hole adjacent to the main fixing hole and re assemble in reverse order 8 Replace the boiler casing 9 Check the operation of the boiler 44 THERMOCOUPLE REPLACEMENT 4 5 MAIN BURNER AND MAIN BURNER INJECTOR REPLACEMENT 1 Refer to Frame 36 2 Remove the burner and air box assembly Refer to Frame 31 3 Remove the electrode retaining nut 4 Remove the pilot shield...

Page 22: ... the collector hood Refer to Frame 32 6 Remove the 4 screws retaining the flue duct and remove the duct 7 Remove the combustion chamber by unscrewing the four tie rods S E R V I C I N G 8 Unclip the thermostat capillary and remove the phial from the pocket Refer to Frame 41 9 Slacken 3 turns only the 4 screws retaining the heat exchanger interpanel assembly 10 Lift the heat exchanger inter panel a...

Page 23: ...er 6 Refit the boiler casing 7 Set the programmer to the desired programme and check the operation of the boiler 4 9 CASING SEAL REPLACEMENT 1 Refer to Frame 36 2 Remove the old seal from the casing surround 3 Thoroughly clean the casing surfaces and fit the adhesive seals 4 Replace the boiler casing Note Standard model illustrated Use the same procedure for casing seal replacement on the Deluxe m...

Page 24: ...rheat thermostat if fitted require resetting Does the pilot now stay alight YES NO Clean the contacts and reconnect securely Replace the overheat thermostat NO NO Replace the gas valve NO Have you confirmed that the system controls are Calling for Heat Note After any faults have been corrected return all thermostatic and other controls to the previously noted settings NO Check the boiler thermosta...

Page 25: ...b 16 Main burner injector 19 Pilot burner shield 20 Gas control valve 21 Gas service cock 106 Sealing gasket 13 Burner manifold 14 Air box pilot burner assy 15 Main burner LEGEND Numbers up to 44 relate to the B G spares list 5 4 BOILER ASSEMBLY Exploded view 28 Thermostat pocket 32 Wall mounting plate 33 Back panel 35 Balanced flue terminal 37 Programmer optional 39 Overheat thermostat if fitted ...

Page 26: ...te stove enamel with sightglass and foil insulation Standard model only 1 111 983 31 308 524 Controls casing door white plastic with Lighting Instructions Standard model only 1 079 937 34 308 329 Boiler sealing pack 1 079 594 39 308 507 Overheat thermostat RANCO LM 7 P 5054 sealed systems only 1 100 787 40 Boiler casing assembly white stove enamel with sightglass and foil insulation Deluxe model o...

Page 27: ...Classic LXRS RS Propane Installation 27 SHORTLISTOFP ARTS 5 6 SHORT PARTS 5 7 BOILER CASING ASSEMBLY Deluxe model Standard model ...

Page 28: ...251 Fax 01482448858 RegistrationNo London322137 RegisteredOffice NationalAvenue KingstonuponHull HU54JN AsubsidiaryofCaradonp l c THIS SYMBOL IS YOUR ASSURANCE OF QUALITY These appliances are designed for use with Natural Gas only They have been tested and conform with the provisions of BS 6332 and BS 5258 The Caradon Plumbing Limited Technical Training Centre offers a series of first class traini...