Ideal Boilers Classic LXRS 245 P Installation And Servicing

18 Classic LXRS, RS - Propane InstallationSERVICINGSERVICINGHeat Input / Setting PressureAfter each occasion of servicing, reference should bemade to Table 2, which quotes details of the rated output,with the related burner setting pressure and the heat input.35 PILOT BURNER CHECKING33 CLEANING THE BURNER & PILOTASSEMBLY.Refer to Frame 31 for illustration of the procedure below.1. Brush off any deposits that may have fallen onto theburner head, ensuring the flame ports are unobstructed,and remove any debris that may have collected.Note. Brushes with metallic bristles MUST NOT be used.2. The main burner injector can be removed, checked andcleaned or replaced as required. Ensure an approvedjointing compound is used, sparingly.3. Inspect the pilot burner, thermocouple and sparkelectrode; ensure they are clear and in good condition.Check that:a. The pilot burner injector is not blocked or damaged(refer to Frame 39 for removal details).b. The pilot burner is clean and unobstructed.c. The spark electrode is clean and undamaged.d. The spark lead is in good condition and securelyconnected.e. The spark gap is correct. Refer to Frame 35.f. The thermocouple tip is not burned or cracked.g. The position of the thermocouple relative to the pilotburner is correct. Refer to Frame 35.h. The thermocouple terminal at the gas valve is clean.4. Re-assemble the burner / air box assembly in reverseorder. Ensure that the burner tab is correctly located.Refer to Frame 31.Note.The pilot shield is positioned around the pilot assemblybracket and is located by the electrode retaining nut.Detail of pilot burner flame1. Turn on the gas supply.2. Light the pilot (refer to Frame 25) and check that thepilot flame envelopes the tip of the thermocoupleand isapproximately 25mm (1") long. Thepilot is factory setto maximum andno furtheradjustment shouldbe necessary.However, if thepilot flameappears small,check the pilotinjector. Refer toFrame 39.Re-assemble in reverse order to that shown in Frames 30to 33.1. Refit the flue baffles and retain with the spring clips.2. Refit the collector hood, replacing any damaged ordeteriorating gaskets.Note.Ensure rear vertical hood retaining screws are tightenedbefore rear horizontal screws and the tie rods are located intothe holes in the base of the combustion chamber3. Refit the burner and air box assembly. Ensure the burnertab is correctly located (refer to Frame 31).4. Refit the burner support.5. Refit the control box assembly.6. Turn on the gas supply.7. Ensure the sightglass in the boiler casing is clean andundamaged .8. Deluxe Model (LX) - Refit the boiler casing. Tighten the 2lower captive casing screws. Push the sliding catch in andlower the glass fascia to the closed position. Tighten theupper captive casing screw.Standard Model - Refit the boiler casing and tighten the 3captive screws. Close the pod door.9. Inspect the visible casing seal for correct fit.10. Deluxe Model (LX) - Push the sliding catch in and lowerthe glass fascia to the closed position.Standard Model - Close the controls pod door.34 RE-ASSEMBLY32 CLEANING THE FLUEWAYS1. Remove the collector hood by undoing the front tie rodnuts and releasing the tie rods from the combustionchamber. Withdraw the rods.2. Remove the 4 collector hood retaining screws andwashers.3. Unclip and remove the flue baffles from the heatexchanger.Note. There are no flue baffles in the RS 255P.4. Remove all loose deposits from the heat exchanger,particularly between the fins, using a suitable brush.