Rayburn Heatranger 480GB, Servicing Instructions

Page 1: ...WARNING This information is a copy of an original archive therefore Aga cannot be held responsible for its continued accuracy...

Page 2: ...g Instructions Heatranger 480GB At the Heart of your Home DESN 511653 P A T A P P 2 2 8 0 7 4 7 A N D O T H E R G B I E P A T E N T S P E N D I N G 10 99 EINS 511382 PLEASE READ THESE INSTRUCTIONS BEF...

Page 3: ...to ensure that the necessary personal protective clothing is worn when handling where applicable the pertinent parts that contain any of the listed materials that could be interpreted as being injurio...

Page 4: ...service visit In your own interest and that of safety to comply with the law all gas appliances must be installed maintained by a competent person in accordance with the current gas safety installatio...

Page 5: ...PPLIES TO THE APPLIANCE HAVE BEEN ISOLATED SEE FIG 1 1 Open up burner access door Remove door and put in a safe place 2 Remove the 4 inner panel securing screws and remove panel 3 Remove the 3 plinth...

Page 6: ...urn off gas cock 2 Break gas cock union connection 3 Disconnect the 5 pin plug underneath the burner SEE FIG 3 4 Undo the burner central locking nut 5 Remove 2 fan mounting plate nuts SEE FIG 4 6 With...

Page 7: ...in between hotplate ribs on underside 2 Examine soft rope seal located around hotplate aperture in top plate Replace if frayed or damaged 3 Replace hotplate ensuring the underside ribs lie over the ov...

Page 8: ...burners mixed up 1 Clean heads with soft brush and inspect for damage or wear 1 Clean between the blades of the fan impeller with a small brush and tip upside down to remove any residue 2 Spin the mo...

Page 9: ...et button COOKER BURNER Follow procedure as above for boiler burner BOILER BURNER Reset the control box open the gas inlet cock allowing the burner to restart When the burner is in run condition close...

Page 10: ...ecified CO 93 ppm MAX CO2 8 5 9 0 Cooker Burner Switch off the boiler burner and repeat the above procedure with the cooker burner To sample the flue gases from the cooker burner lift up the R H insul...

Page 11: ...Steps 1 to 3 and BURNER REMOVAL Steps 1 to 6 1 Remove 8 burner head securing screws 2 Disconnect plug on fan mounting plate SEE FIG 12 Follow instructions in sections BURNER ACCESS Steps 1 to 3 BURNER...

Page 12: ...See Fig 14 NOTE DO NOT OVER TIGHTEN ELECTRODE CLAMP SEE FIG 13 Follow instructions in sections BURNER ACCESS Steps 1 to 3 BURNER REMOVAL Steps 1 to 6 and DISMANTLE BURNERS Steps 1 to 2 1 Remove securi...

Page 13: ...ove ignitor 8 Fit new ignitor re assemble in reverse order SEE FIG 16 Follow instructions in sections BURNER ACCESS Steps 1 to 3 and BURNER REMOVAL Steps 1 to 3 1 Remove control boxes 2 Break 2 gas pi...

Page 14: ...l fixing screws 4 Remove cover panel It will be necessary to disconnect the push on tags from the selector switch SEE FIG 19 5 Remove the four control panel fixing screws 6 Tilt the chassis forward fr...

Page 15: ...Replacement of parts Electrical FIG 20 DESN 511140 14...

Page 16: ...t The thermostat should be mounted with tag P at the right hand side looking from back Take care to push thermostat phial correctly into the pocket provided 4 Re connect push on connector wires The wh...

Page 17: ...capillary which pass into the oven at the top left hand corner The thermostat phial is located in a slot at the top front of the oven 4 Slacken the single screw where the phial passes through the roa...

Page 18: ...e programmer inserting the top base with the bottom clip 6 Refix the mounting brackets to the control chassis To complete follow instructions in section RE ASSEMBLE Steps 3 to 6 SEE FIG 27 Follow inst...

Page 19: ...an assembly 5 Remove 2 venturi securing screws 6 Remove fan venturi assembly and gasket from fan 7 Fit new fan re assemble in reverse order SEE FIG 29 1 Remove 2 fan cover securing screws remove cover...

Page 20: ...he chassis backwards into position with the four screws 3 Thread the two wires for the selector switch through the aperture and connect them onto the rear of the selector switch fitted in the outer pa...

Page 21: ...65 C then the pump overrun thermostat operates and switches on the pump until the overrun thermostat switches back BOILER This thermostat is a safety cut out device which is intended to operate if th...

Page 22: ...CYLINDER STAT ZONE VALVE S ETC IF FITTED PUMP SUPPLY THE CIRCULATING PUMP MUST BE CONNECTED DIRECTLY TO THIS SUPPLY PUMP SUPPLY THE CIRCULATING PUMP MUST BE CONNECTED DIRECTLY TO THIS SUPPLY 3 AMP PE...

Page 23: ...Electrical Controls 22 CONTROL CIRCUIT BOILER FIG 30...

Page 24: ...Electrical Controls 23 CONTROL CIRCUIT COOKER FIG 31...

Page 25: ...Electrical Controls 24 WIRING DIAGRAM BURNER ONLY FIG 32...

Page 26: ...25 WIRING DIAGRAM APPLIANCE Electrical Controls FIG 33...

Page 27: ...individual controls refer to the section on Replacement Parts and for wiring continuity checks refer to Figs 32 33 34 and 35 for detailed and schematic wiring layouts 1 To check out the electrical wir...

Page 28: ...STAT ACTIVATED IS THERE 230V BETWEEN COOKER OVERHEAT STAT AND NEUTRAL REPLACE COOKER OVERHEAT STAT RESET OVERHEAT THERMOSTAT THERMOSTAT OR WIRING FAULT YES NO NO YES NO YES CHANGE CIRCULATING PUMP IS...

Page 29: ...ESTABLISHED CONTROL BOX GOES TO LOCKOUT 1 Check polarity of wiring for Live and Neutral to control box base live to terminal 1 Neutral onto terminal 2 at control box base 2 Check flame detection probe...

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