Baxi Solo 2 60 RS Installation And Servicing Instructions
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Baxi Solo 2 60 RS Installation And Servicing Instructions

Wall mounted room sealed gas fired central heating boilers
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Baxi Solo 2 RS Range
Wall Mounted Room Sealed
Gas Fired Central Heating Boilers
Installation and

Servicing Instructions

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  • Page 1: Servicing Instructions

    Please leave these Instructions with the User. Baxi Solo 2 RS Range Wall Mounted Room Sealed Gas Fired Central Heating Boilers Installation and Servicing Instructions...
  • Page 2 Natural Gas Baxi Solo 2 60 RS G.C.No. 41 077 79 Baxi Solo 2 50 RS G.C.No. 41 077 78 Baxi Solo 2 40 RS G.C.No. 41 077 77 Baxi Solo 2 30 RS G.C.No. 41 077 76...
  • Page 3 Baxi UK Limited is one of the leading manufacturers of domestic heating products in the U.K. Our first priority is to give a high quality service to our customers. Quality is built into every Baxi product - products which fulfil the demands and needs of customers, offering choice, efficiency and reliability.

  • Page 4: Table Of Contents

    CONTENTS Introduction PAGE 5 Technical Data PAGE 6 - 7 System Details PAGE 8 - 11 Water Circulating Systems (and By-pass Requirements) System Controls Pipework Fully Pumped, Open Vented Systems Low Head Installation Sealed Systems Gravity Systems Hydraulic Charts Site Requirement PAGE 12 - 14 Location Clearances...

  • Page 5: Introduction

    INTRODUCTION Description The Baxi Solo 2 RS is a wall mounted gas fired room sealed natural draught central heating boiler with range rated outputs as shown in the table below. HEAT OUTPUT Model 6.15kW (21,000 Btu/h) 8.79kW (30,000 Btu/h) 9.09kW (31,000 Btu/h) 11.72kW (40,000 Btu/h)

  • Page 6: Technical Data

    TECHNICAL DATA 30 RS Lifting Weight 37.3 kg (82.1 lbs) Heat Input 11.00 7.69 Water Content 2.1 litres (0.46 gals) Btu/h 37,500 26,250 Static Head Heat Output metres 8.79 6.15 feet 3.25 Btu/h 30,000 21,000 Low Head Min 0.15m (6in) Burner Pressure System Design gravity hot water fully...
  • Page 7 50 RS Lifting Weight 37.3 kg (82.1 lbs) Heat Input 18.32 15.02 Water Content 2.1 litres (0.46 gals) Btu/h 62,500 51,250 Static Head Heat Output metres 14.65 12.02 feet 3.25 Btu/h 50,000 41,000 Low Head Min 0.15m (6in) Burner Pressure System Design gravity hot water fully 16.3 + 0.5...

  • Page 8: System Details

    SYSTEM DETAILS (and By-pass Requirements) Water Circulating Systems Examples of The appliance is suitable for use with fully pumped Open Circuits open vented systems (small bore and micro-bore), gravity domestic hot water with pumped central heating systems and sealed systems. The following conditions should be observed on all By-pass systems:...
  • Page 9 Copper Copper 0.5m 0.5m Flow System Controls Boiler Return Copper For optimum operating conditions, the heating system into which the boiler is installed should include a Copper Pipe In Non-Metallic System control system. Such a system will comprise of timer control and a separate room or cylinder thermostat as appropriate.
  • Page 10 Baxi Boilers water undertaking. For further details see BS 6798. Multiply Total...
  • Page 11 Gravity Systems When the boiler is to be installed to an existing or new gravity domestic hot water and pumped central heating system, the following considerations should be given to the design of the gravity domestic hot water flow and return pipes. The minimum circulating head should not be less than 1m (3ft) with a maximum horizontal run of 3m (10ft) when using 28mm pipes.

  • Page 12: Site Requirement

    SITE REQUIREMENTS Location The appliance may be fitted to any suitable wall with the flue passing through an outside wall and discharging to atmosphere in a position permitting satisfactory removal of combustion products and providing an adequate air supply. The appliance should be fitted within the building unless other-wise protected by a suitable enclosure ie.
  • Page 13 WARNING If a terminal is less than 2 metres (78 in) above a balcony, above ground or above a flat roof to which people have access then a suitable terminal guard must be provided. Likely positions requiring a flue terminal guard Terminal Position with Minimum Distance (mm) Directly below an openable window or other...
  • Page 14 Ventilation of Compartments Where the appliance is installed in a cupboard or compartment, air vents are required (for cooling purposes) in the cupboard or compartment at high and low level which may communicate with a room or direct to outside air. Detailed recommendations for air supply are given in BS 5440: Part 2.
  • Page 15 INSTALLATION Initial Preparation Unpack the contents of carton leaving the combustion box and mounting plate assembled on the base tray. Place the outer case in a safe place until required. Detach the fixing template from the packaging. Remove the two wing nuts securing the combustion box to the mounting plate.
  • Page 16 Flue Preparation Unpack flue duct, flue trim and air duct. Flue Trim Flue Duct Air Duct Measure overall wall thickness. If this is between Wall Thickness 280mm (11in) and 355mm (14in), use flue as supplied without alteration. For wall thickness between 102mm (4in) and 280mm (11in), air duct and flue duct are required to be shortened.
  • Page 17 Fitting the Wall Mounting Plate Secure plate to wall using 63mm (2 in) screws. From outside building, pass air duct through wall opening. The two tabs should be positioned at the bottom. Inner Duct Air Duct Slide air duct over inner duct until tabs contact wall surface.
  • Page 18 Fitting the Flue Duct Fit flue trim over air duct. Sealing Flue Trim Tape Air Duct Tabs Slide flue duct inside air duct to engage flue duct on boiler, noting correct positioning as labelled. Label Flue Duct Air Duct Secure flue duct, flue trim to air duct with four screws provided in the kit.
  • Page 19 Terminal Guard When codes of practice dictate the use of terminal guards, they can be obtained from most plumbers and builders merchants nationwide. When ordering a terminal guard, quote the appliance model number. The guard manufacturers listed below can be contacted for terminal sizes and guard model numbers.
  • Page 20 Fitting the Boiler When the boiler is to be used on a system with gravity D.H.W. it is necessary to disconnect the overheat thermostat by removing the wire with the black sleeve and attaching it to the wire with the red sleeve as shown.
  • Page 21 Water Connections The boiler is supplied ready for fully pumped and sealed systems. The boiler has 2 connection tails to accept capillary or compression fittings:- 22mm tail marked F for Flow. 22mm tail marked R for Return. Pipe Routes Pipework should be routed to the back plate. Pipes may also be routed to drop down within outer case.
  • Page 22 Gravity Hot Water System Injector For gravity domestic hot water and pumped central Washer heating system, connect tee supplied in kit to the tail marked R. Ensure that the injector washer is positioned correctly as shown. Failure to fit the injector washer will result in reverse circulation in the D.H.W.
  • Page 23 br - brown Electrical Supply blue g/y - green/yellow or - orange The electrical supply for this Solo 2 RS depends on the design of the central heating system i.e. white Gravity DHW and Pumped Central Heating - 3 core cable.
  • Page 24 Loosen the securing screw sufficiently for the electrical cover to be removed from the thermostat box. Bare back the input cable to the dimensions shown. Fit the electrical input cable as follows: Connect the switched live to the terminal marked S/L. Connect the permanent live to the terminal marked P/L.
  • Page 25 FOR GRAVITY D.H.W. AND PUMPED C. H. When the boiler is to be used on a system with gravity D.H.W. ensure that the overheat thermostat has been disconnected as shown. The overheat thermostat is now by-passed and will allow the appliance to perform satisfactorily on gravity circulation.

  • Page 26: Commissioning The Appliance

    COMMISSIONING THE APPLIANCE Fill the whole system in accordance with BS 7593: 1992 (See Treatment of Water Circulating Systems in the System Details section). Check for water leaks. Purge air from supply pipe at gas service tap (BS 6891). Turn gas service tap anticlockwise to ON position.
  • Page 27 Turn on main electricity supply. Light burner by turning thermostat knob to high setting (fully clockwise). Check pressure after 10 minutes. Adjust if necessary to the relevant figures for the corresponding model shown in the chart below. To set the main burner pressure adjust the throttle as shown.

  • Page 28: Fitting The Outer Case

    FITTING THE OUTER CASE Remove the lower door panel from the ready assembled outer case by following the sequence of diagrams. If the appliance is to be fitted on a gravity system remove the two infill panels. Offer the outer case up to the hooks on the top of the combustion box ensuring that it engages.

  • Page 29: Overheat Cut-Off Device

    OVERHEAT CUT-OFF DEVICE Operation The overheat cut-off device is of the manual reset type and therefore it is important that the user knows how to reset the control should it ever cut out. Remove the lower door panel by following the sequence of diagrams.

  • Page 30: Annual Servicing

    ANNUAL SERVICING Dismantling the Boiler To ensure the continued safe and efficient operation of the appliance, it is recommended that it is checked and serviced as necessary at regular intervals. The frequency of servicing will depend upon the particular installation conditions and usage but in general once per year should be adequate.
  • Page 31 Cleaning the Burner/Injectors Lightly brush any debris from top of burner blades and ensure that ports are free of obstructions. Remove the two nuts fixing the burner manifold to the burner feed pipe. Remove the two nuts fixing the burner manifold to the combustion chamber door.
  • Page 32 Cleaning the Combustion Box Slide baffle forward (30, 40 and 50 models only). Side insulation panels and rear insulation panel should be removed to avoid brush damage. To remove side panel, remove one screw per panel. Slide panel down and away from location.

  • Page 33: Changing Components

    CHANGING COMPONENTS Before changing any components please read the Important Information section on page 5. When changing components ensure that electrical and gas supplies are isolated before the work is started. Remove the outer case lower door panel by following the sequence of diagrams. Remove the outer case from the boiler by unscrewing the two screws and washers, lift the case to clear the two hooks at the...
  • Page 34 Eco Interrupter Leads Disconnect the leads at the overheat thermostat. One lead is removed by unscrewing the connection from the rear of the gas valve. The other lead can be removed after slackening off the thermocouple connection at the gas valve. Reassemble in reverse order.

  • Page 35: Thermocouple

    Thermocouple Release nuts holding thermocouple in place. Bend new thermocouple to required shape, fit in place and tighten retaining nuts. Caution: Do not overtighten nuts. Thermocouple Spark Electrode & Lead at Gas Valve Unclip the electrode from the pilot bracket and remove lead from piezo igniter.

  • Page 36: Overheat Thermostat

    Overheat Thermostat NOTE: On boilers converted for use with gravity D.H.W., the overheat thermostat will have been rendered inoperable and will never need changing. Loosen the screw on the capillary retaining washer, allowing the washer to move freely. Free the capillaries from the clips on the left hand side of the combustion box.

  • Page 37: Main Thermostat

    Main Thermostat Loosen the screw on the capillary retaining washer, allowing the washer to move freely. Free the capillaries from the clips on the left hand side of the combustion box. Withdraw both thermostat phials from the thermostat pocket. Disconnect the electrical plug and cable on the gas valve.

  • Page 38: Pump Overrun Timer

    Pump Overrun Timer To change circuit board proceed as if to change Main Thermostat 1 to 6 (page 37) then: Disconnect the molex plug from the circuit board. Remove the circuit board from the two supports. Fit the new circuit board to the mounting plate and reconnect the molex plug.

  • Page 39: Burner And Injectors

    Burner and Injectors Remove the two nuts fixing the burner manifold to the burner feed pipe. Remove the two nuts fixing the burner manifold to the combustion chamber door. Remove the two screws fixing the burner brackets to the combustion chamber door. Remove burner assembly, (noting position of pilot shield) 'O' ring and gasket.

  • Page 40: Insulation Panels

    Insulation Panels To replace the combustion chamber door insulation undo the five screws holding the insulation carrier assembly in place. Replace with new carrier assembly and reassemble in reverse order. To replace side insulation panels remove fixing screws. Slide panel down and away from location.
  • Page 41 FAULT FINDING...
  • Page 42 SHORT PARTS LIST Key Description Model G.C. Manuf'rs Part N Panel Front All models 364 983 233700 Panel Side (2 off) All models 364 984 230675 Panel Top All models 170 508 231770 45-46-47-48 Panel Bottom All models 364 986 230690 Panel Door Lower Assy All models 364 987...
  • Page 43 Baxi UK Limited manufacture a comprehensive range of products for the domestic heating market Gas Central Heating Boilers (Wall, Floor and Fireside models). Independent Gas Fires. Renewal Firefronts. Gas Wall Heaters. Solid Fuel Fires. If you require information on any of these products,...
  • Page 44 Comp N 232184 - Iss 11 - 6/00 The Baxi Helplines For General Enquiries +44 (0)8706 060 780 For After Sales Service +44 (0)8706 096 096 For Technical Enquiries +44 (0)8706 049 049 Baxi UK Limited Brownedge Road Bamber Bridge Preston...

This manual is also suitable for:

Solo 2 50 rsSolo 2 40 rsSolo 2 30 rs

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