Wonderfire nexus BR648 VA Installer'S Manual Download

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As supplied, this appliance is for use with natural gas (G20)
When converted using conversion kit no. 591149 this
appliance is for use with propane gas (G31)
This appliance is for use in the United Kingdom (GB) and

the Republic of Ireland (IE) only.

600B731/02

Model BR648 VA

(G.C. 32-032-38)

INSTALLER’S GUIDE

We trust that this Installer Guide gives sufficient details to enable the appliance to

be installed and maintained satisfactorily. However, if further information is

required, our

AdviceLine

will be pleased to help.

Please telephone 0345 626341

(Local call rates apply in the United Kingdom).

In the Republic of Ireland call 353 183 75114.

INSTALLER: Please leave this guide with the owner

Summary of Contents for nexus BR648 VA

Page 1: ...731 02 Model BR648 VA G C 32 032 38 INSTALLER S GUIDE We trust that this Installer Guide gives sufficient details to enable the appliance to be installed and maintained satisfactorily However if further information is required our AdviceLine will be pleased to help Please telephone 0345 626341 Local call rates apply in the United Kingdom In the Republic of Ireland call 353 183 75114 INSTALLER Plea...

Page 2: ...tings 16 7 2 Check for Spillage 16 7 3 Flame Supervision Spillage Monitoring System 17 8 FINAL REVIEW 18 9 SERVICING PARTS REPLACEMENT 19 9 1 To Replace Burner Plaques 19 9 2 To Remove the Complete Burner Unit 20 9 3 To Remove the Pilot Unit 20 9 4 To Remove the Gas Tap 20 9 5 To Remove the Piezo Generator 21 9 6 To Grease the Control Tap 21 9 7 To Remove the Main Burner Elbow Injector 21 9 8 To R...

Page 3: ...aste Protective clothing is not required when handling these articles but we recommend you follow the normal hygiene rules of not smoking eating or drinking in the work area and always wash your hands before eating or drinking This appliance does not contain any component manufactured from asbestos or asbestos related products The appliance data label is on the control plate below the right side o...

Page 4: ...the current edition of the Building Regulations issued by the Department of the Environment and the Welsh Office In Scotland the current edition of the Building Standards Scotland Regulations issued by the Scottish Executive In Northern Ireland the current edition of the Building regulations Northern Ireland issued by the Department of the Environment for Northern Ireland In the republic of Irelan...

Page 5: ...t be installed in any room which contains a bath or shower or where steam is regularly present 2 9 In the United Kingdom as supplied this appliance can be installed in the following situations 2 9 1 A masonry chimney with a minimum diameter of 175mm 7 free from any obstruction and with any damper or restrictor plate in the chimney removed or secured and having a minimum effective flue height of 3m...

Page 6: ...cluding plaster surround etc must be not less than 118mm See figure 2 The current versions of BS1289 and BS EN 1806 recommend that there should be an air space or insulation between the flue blocks and the plaster because heat transfer may cause cracking on directly plastered flues However generally this appliance is suitable for installations under all circumstances unless there is a history of c...

Page 7: ...ght type it must be sealed to stop any draughts 2 12 An extractor fan may only be used in the same room as this appliance or in any area from which ventilation for the appliance is taken if it does not affect the safe performance of the appliance Note the spillage test requirements detailed further on in this manual If the fan is likely to affect the appliance the appliance must not be installed u...

Page 8: ...s appliances must not be installed in a room which is built entirely below ground level See BS 5871 Pt2 2 18 Proprietary terminals must comply with BS 715 or BS 1289 Any terminal or termination must be positioned in accordance with BS 5440 Part 1 to ensure that the products of combustion can be safely dispersed into the outside atmosphere Where the appliance is connected to an unlined brick chimne...

Page 9: ...to be installed After confirming with a match that smoke is drawn into the flue light a 13 gram smoke pellet and check that there is a definite flow through the flue Verify outside that the smoke exits from one terminal only and that the termination is suitable Observe where possible upstairs rooms and loft spaces for signs of escaping smoke indicating a defective flue If there is not a definite f...

Page 10: ...at all joints are butted together to prevent air gaps 3 4 The Gas Supply Pipe 8mm rigid tubing must be used to connect the gas supply to the appliance An olive and nut are provided for connection to the T connector on the appliance The connector can be rotated to allow connection from either side or the rear The connector includes a valve for isolating the gas supply 3 5 1 If a concealed connectio...

Page 11: ...plugs instead of the fibre plugs supplied Assemble one end of the cable to the top of the fire by passing it through the small round hole and locking by positioning the cable end in the adjacent slot Pass the other end of the cable through the eyebolt hole in the lower side of the appliance and fit adjusters as shown in figure 7 With the adjusters fully screwed in carefully manoeuvre the appliance...

Page 12: ...y be required to reach some joints 5 1 Preliminary Burner Checks Some burner operations can be checked at this stage Checking now will mean that less disassembly will be required if any problems are found A full check should still be made however after final installation If closed open the isolating valve at the T connection Depress the control knob and turn anticlockwise partially towards the PIL...

Page 13: ...d components as described in the servicing section of this manual 5 2 Reference Pressure Check The appliance is pre set to give the correct heat input at the inlet pressure shown in the Technical Specification section of this manual No adjustment is necessary Check the burner pressure by fitting a pressure gauge at the test point The test point is on the pipe situated below the bottom right corner...

Page 14: ...the sides and back of the firebox and its rear face should touch the firebox rear wall See figure 9 3 Place the front base coal in the firebox with its bottom front locating over the front rim of the firebox Pull the coal forward so that it locates immediately behind the front rim of the firebox See figure 10 4 There are two types of loose coals Type A coals have a prominent lip There are three co...

Page 15: ... resting against the centre coal of the rear base coal as shown in figure 14 8 Place the remaining type B coal at the right side of the firebox between the front and rear base coals Its two grooves should be on the top surface with the wide flat end to the front The coal should touch the right side of the firebox See figure 15 10 Place the remaining type A coal between the front and rear base coal...

Page 16: ...g There may be a delay of up to four seconds between the pilot lighting and ignition of the gas at the main burner This is normal and is due to the time required to fill the main burner compartment with sufficient gas for ignition When the burner is operating properly partially depress the knob and gradually turn it anti clockwise The burner flames should gradually increase until the knob reaches ...

Page 17: ...est is not satisfactory disconnect the appliance and advise the customer of the cause of failure 7 3 Flame Supervision Spillage Monitoring System The pilot unit incorporates a system which will automatically shut off the gas supply if the pilot flame goes out or if there is insufficient oxygen due to spillage or lack of ventilation Check that the system operates properly as follows Light the appli...

Page 18: ...erate to its maximum potential if the flue is primed during the first 20 30 minutes of use To do this simply turn the control to its highest setting This will also burn off any carbon deposits that may have formed during previous use If using the appliance for long periods it is beneficial to change between settings This will also help to remove any carbon deposits that may form during use Recomme...

Page 19: ...d of at a tipping site licensed for the disposal of industrial waste Protective clothing is not required when handling these articles but we recommend you follow the normal hygiene rules of not smoking eating or drinking in the work area and always wash your hands before eating or drinking Check that the appliance is clean and that soot or debris is not blocking the gaps between the coals causing ...

Page 20: ... from the hotbox by removing 1 screw As shown in figure 7 Replace in the reverse order 9 3 To Remove the Pilot Unit Remove the complete burner unit See section 9 2 Disconnect the electrode lead from the tab underneath the electrode Undo the thermocouple nut at the gas tap Disconnect the pilot pipe from the pilot unit elbow Remove the first screw securing the dust cage to the pilot unit burner brac...

Page 21: ... that the gas ports in the tap are not restricted by grease Push the plug into the tap body and position the slot in line with the mark previously made on the tap body Reassemble the niting head and spindle complete with collar and spring making sure that the components are correctly engaged Check the operation of the tap Refit the piezo generator 9 7 To Remove the Main Burner Elbow Injector Remov...

Page 22: ...ector Bray cat 15 size 170 For Propane Appliances 581199 B Gas tap spark generator 1 569429 C Spark generator 1 521069 D Control knob 1 545979 E Pilot unit For Natural Gas Appliances 1 540979 Pilot unit For Propane Appliances 544929 F Burner plaque gasket set 1 569439 G Front coal 1 579119 H Rear base coal 1 579129 J Pack of loose coals 1 579149 K Dust cage 1 567619 ...

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