Baxi Solo 2 RS Quick Start Manual

Please leave these Instructions with the User.Baxi Solo 2 RS RangeWall Mounted Room SealedGas Fired Central Heating BoilersInstallation and Servicing

Initial SystemPressure (Bar)Vessel ChargePressure (Bar)Multiply TotalWater Content OfSystem By (Litres0.0670.1120.2070.4410.0870.1520.3300.1250.2650.5

4.5 9.0 13.5 18.0 22.5(1) (2) (3) (4) (5)(12)30(8)20(4)100Water Flow litres/min (gal/minPressure Drop mbar (in wg)30 RS40 RS50 RS60 RSHydraulic Resist

SITE REQUIREMENTSLocationThe appliance may be fitted to any suitable wall withthe flue passing through an outside wall anddischarging to atmosphere in

Terminal Position with Minimum Distance (mm)A Directly below an openable window or otheropening, e.g. an air brick. 300B Below gutters, soil pipes or

Ventilation of CompartmentsWhere the appliance is installed in a cupboard orcompartment, air vents are required (for coolingpurposes) in the cupboard

Unpack the contents of carton leaving the combustionbox and mounting plate assembled on the base tray.Place the outer case in a safe place until requi

Flue PreparationUnpack flue duct, flue trim and air duct.Measure overall wall thickness. If this is between280mm (11in) and 355mm (14in), use flue ass

Fitting the Wall Mounting PlateSecure plate to wall using 63mm (21/2in) screws.From outside building, pass air ductthrough wall opening. The two tabss

Fitting the Flue DuctFit flue trim over air duct.Slide flue duct inside air duct toengage flue duct on boiler, notingcorrect positioning as labelled.S

Terminal GuardWhen codes of practice dictate the use of terminalguards, they can be obtained from most plumbers andbuilders merchants nationwide.When

2Natural GasBaxi Solo 2 60 RSG.C.No. 41 077 79Baxi Solo 2 50 RSG.C.No. 41 077 78Baxi Solo 2 40 RSG.C.No. 41 077 77Baxi Solo 2 30 RSG.C.No. 41 077

Fitting the BoilerWhen the boiler is to be used on a system with gravityD.H.W. it is necessary to disconnect the overheatthermostat by removing the wi

Water ConnectionsThe boiler is supplied ready for fully pumped andsealed systems.The boiler has 2 connection tails to accept capillary orcompression f

22Gravity Hot Water SystemFor gravity domestic hot water and pumped centralheating system, connect tee supplied in kit to the tailmarked R. Ensure tha

23Electrical SupplyThe electrical supply for this Solo 2 RS depends onthe design of the central heating system i.e.Gravity DHW and Pumped Central Heat

24Loosen the securing screw sufficiently for the electricalcover to be removed from the thermostat box.Bare back the input cable to thedimensions show

25FOR GRAVITY D.H.W. AND PUMPED C. H.When the boiler is to be used on a system with gravityD.H.W. ensure that the overheat thermostat has beendisconne

26Fill the whole system in accordance with BS 7593: 1992(See Treatment of Water Circulating Systems in theSystem Details section). Check for water lea

27Turn on main electricity supply.Light burner by turning thermostat knob to highsetting (fully clockwise).Check pressure after 10 minutes. Adjust if

28Remove the lower door panel from the readyassembled outer case by following thesequence of diagrams. If the appliance is to be fittedon a gravity sy

29OVERHEAT CUT-OFF DEVICEOperationThe overheat cut-off device is of the manual resettype and therefore it is important that the userknows how to reset

Baxi UK Limited is one of the leading manufacturers ofdomestic heating products in the U.K.Our first priority is to give a high quality service to our

30Dismantling the BoilerTo ensure the continued safe and efficient operationof the appliance, it is recommended that it is checkedand serviced as nece

31Cleaning the Burner/InjectorsLightly brush any debris from top of burner blades andensure that ports are free of obstructions.Remove the two nuts fi

32Cleaning the Combustion BoxSlide baffle forward (30, 40 and 50 models only).Side insulation panels and rear insulation panelshould be removed to avo

33CHANGING COMPONENTSBefore changing any components please read theImportant Information section on page 5.When changing components ensure that electr

34Eco Interrupter LeadsDisconnect the leads at the overheat thermostat.One lead is removed by unscrewing theconnection from the rear of the gas valve.

35ThermocoupleRelease nuts holding thermocouple in place. Bendnew thermocouple to required shape, fit in place andtighten retaining nuts. Caution: Do

36Overheat ThermostatNOTE: On boilers converted for use with gravityD.H.W., the overheat thermostat will have beenrendered inoperable and will never n

37Main Thermostat1Loosen the screw on the capillary retaining washer,allowing the washer to move freely. Free thecapillaries from the clips on the lef

38Pump Overrun TimerTo change circuit board proceed as if to change MainThermostat 1 to 6 (page 37) then:Disconnect the molex plug from the circuit bo

39Burner and InjectorsRemove the two nuts fixing the burner manifold to theburner feed pipe.Remove the two nuts fixing the burner manifold to thecombu

CONTENTSIntroductionTechnical DataSystem Details(and By-pass Requirements)Site Requirement InstallationCommissioning the ApplianceFitting the Outer Ca

40Insulation PanelsTo replace the combustion chamber doorinsulation undo the five screws holding theinsulation carrier assembly in place.Replace with

41FAULT FINDINGPOSSIBLE CAUSESLoose screws at joints or fittings - defective "O" ring -damaged valve casting at joint - defective burner fee

42SHORT PARTS LISTKey Description Model G.C. Manuf'rsNoPart No2 Panel Front All models 364 983 2337003 Panel Side (2 off) All models 364 984 2306

43Baxi UK Limited manufacture a comprehensiverange of products for the domestic heating marketGas Central Heating Boilers(Wall, Floor and Fireside mod

Baxi UK LimitedBrownedge RoadBamber Bridge PrestonLancashirePR5 6SNwww.baxi.comThe Baxi HelplinesFor General Enquiries+44 (0)8706 060 780For After Sal

INTRODUCTIONDescriptionThe Baxi Solo 2 RS is a wall mounted gasfired room sealed natural draught centralheating boiler with range rated outputs asshow

TECHNICAL DATA30 RS40 RSHeat Input Max MinkW 11.00 7.69Btu/h 37,500 26,250Heat Output Max MinkW 8.79 6.15Btu/h 30,000 21,000Burner Pressure Max Minmba

50 RS60 RSHeat Input Max MinkW 18.32 15.02Btu/h 62,500 51,250Heat Output Max MinkW 14.65 12.02Btu/h 50,000 41,000Burner Pressure Max Minmbar 16.3 +0.5

This system is unlikely torequire a By-pass unless allradiators are thermostaticallycontrolledWater Circulating SystemsThe appliance is suitable for u

BoilerPumpFlowReturn400mmMin Head22mmOpen Vent15mmColdFeed1000mmMin150mmMax500mm45oBoilerPumpFlowReturn22mmFeed & VentPipe200mmMinAirSeparatorBoil