Baxi 741 Installer'S Manual Download | Manualshive

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3.20

The appliance is fitted with an A.S.D (Atmosphere sensing device). If the

appliance closes down after a period of operation for no apparent reason, the consumer
should be informed to stop using the appliance until the installation and appliance have
been thoroughly checked. The A.S.D will shut the appliance down if an unacceptable
amount of harmful products of combustion accumulate. Under no circumstances should
the A.S.D be altered or bypassed in any way. Only a genuine manufacturers replacement
part should be fitted. The individual A.S.D components are not replaceable.

3.21

A fireguard complying with BS 8423 should be fitted for the protection of young

children, the elderly, or the infirm.

Page 11

INSTALLER GUIDE

Figure 5. Appliance dimensions.

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Summary of Contents for 741

Page 1: ...l rates apply in the United Kingdom In the Republic of Ireland telephone 0044 8706 061 065 INSTALLER Please leave this guide with the owner Model 741 INSET LIVE FUEL EFFECT GAS FIRE Fitted with Blenheim or Sonnet fascia GC No 32 032 56 THIS APPLIANCE IS FOR USE WITH NATURAL GAS G20 WHEN CONVERTED USING CONVERSION KIT NO 0595211 THIS APPLIANCE IS FOR USE WITH PROPANE GAS G31 THIS APPLIANCE IS SUITA...

Page 2: ...s Division is a member of the Society of British Gas Industries which works to ensure high standards of safety quality and performance Careful Installation Baxi Fires Division is a CORGI registered company All our gas fires must be installed by a competent CORGI Registered Installer in accordance with our Installer Guide and should not be fitted directly on to a carpet or floor of combustible mate...

Page 3: ...et pressure check 23 11 CERAMIC WALLS INSTALLATION 23 12 FRONT FASCIA FITTING 24 13 CERAMIC COALS INSTALLATION 25 14 FIREFRONT CASTINGS INSTALLATION 27 15 FULL OPERATING CHECKS 27 15 1 Check the control settings 27 15 2 Check for spillage 28 15 3 Flame supervision and spillage monitoring system 29 16 FINAL REVIEW 30 17 SERVICING PARTS REPLACEMENT 31 17 1 Checking the aeration setting of the burner...

Page 4: ...hich are man made vitreous silicate fibres Excessive exposure to these materials may cause irritation to eyes skin and respiratory tract Consequently it is important to take care when handling these articles to ensure that the release of dust is kept to a minimum To ensure that the release of fibres from these RCF articles is kept to a minimum during installation and servicing we recommend that yo...

Page 5: ...codes of practice The relevant parts of the current editions of the following British Standards BS 715 BS 1251 BS 1289 Part 1 BS 1289 Part 2 BS EN 1806 BS 4543 Part 2 BS 5440 Part 1 BS 5440 Part 2 BS 5871 Part 2 BS 6461 Part 1 BS 6891 BS 8303 In England and Wales the current edition of the Building Regulations issued by the Department of the Environment and the Welsh Office Page 5 INSTALLER GUIDE ...

Page 6: ...round and hearth as shown in figure 1 and complying with BS1251 after removal of the fireback and sufficient material behind the fireback for a debris catchment space The required fireplace hearth debris catchment area and clearance dimensions are shown in figure 1 3 2 1 1 Hole in the wall installations It is recommended that a hearth should be installed as in figure 1 If a reduced depth hearth is...

Page 7: ...the opening This may cause cracking of the surround back or marble 3 3 Suitable flues and minimum flue sizes are as follows It should be noted that as with many appliances sharp bends or horizontal runs in metal flues at the top of the system can be a cause of problems in these types of installation 225mm x 225mm conventional brick flue 175mm diameter lined brick or stone flue 200mm diameter facto...

Page 8: ... the open position 3 7 If the appliance is intended to be installed to a chimney that was previously used for solid fuel the flue must be swept clean prior to installation All flues should be inspected for soundness and freedom from blockages 3 8 If the fireplace opening is an underfloor draught type it must be sealed to stop any draughts 3 9 The appliance must be mounted behind a non combustible ...

Page 9: ...ould be reasonably flat to ensure that a good seal with the hotbox can be made 3 11 The minimum height from the top surface of the hearth to the underside of any shelf made from wood or other combustible materials is shown in graph 1 3 12 Note that soft wall coverings e g embossed vinyl etc are easily affected by heat They may scorch or become discoloured when close to a heating appliance Please b...

Page 10: ...scia The cladding must also not touch the fasia See figure 4 We suggest that the actual fascia is used as a template to mark the area for combustible cladding removal and that this area is increased by at least 2mm all round 3 18 The minimum allowable distance from the outside of the appliance case to a corner wall having combustible material or any other combustible surface which projects beyond ...

Page 11: ...d The A S D will shut the appliance down if an unacceptable amount of harmful products of combustion accumulate Under no circumstances should the A S D be altered or bypassed in any way Only a genuine manufacturers replacement part should be fitted The individual A S D components are not replaceable 3 21 A fireguard complying with BS 8423 should be fitted for the protection of young children the e...

Page 12: ...al 1 Base coal 1 Pack of loose coals 2 Small U seals for hotbox side flanges 1 Strip of floor sealing tape 6 Fibre plugs 4 Woodscrews 2 Fire retaining cables 2 Cable clamps 4 Eyebolts 1 Rubber grommet 1 Smoke match tube 2 Fireback spacing brackets 1 Rear ceramic wall support bracket 1 Length of self adhesive foam seal 1 Literature pack Section 2 Fire Front contains 1 Firefront casting 1 Bottom fro...

Page 13: ...Page 13 INSTALLER GUIDE Figure 6 Pack contents ...

Page 14: ... also not touch the fascia See figure 4 We suggest that the actual fascia is used as a template to mark the area for combustible cladding removal and that this area is increased by at least 2mm all round 5 1 3 Soundness for appliance attachment Two primary methods of retaining the appliance are provided 1 By fixing to the fireplace front surround 2 Using concealed tension cables fixed to the rear ...

Page 15: ... 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 flow warm the flue for a few minutes and repeat the smoke pellet test If there is still no definite flow the flue may need remedial work Do not fit the appliance until there is a definite flow through the flue 6 IGNITION CHECK Before ...

Page 16: ...re 7 Note that the centre of the appliance inlet T connector is 25mm above the fireplace floor The inlet T connector should be fitted to the supply pipe at this stage 8 PREPARING APPLIANCE FOR INSTALLATION IMPORTANT Before continuing with the installation of this gas fire the aeration setting on the burner must be checked The aeration is factory set but will require adjustment See section 17 1 Ser...

Page 17: ...supplied with the fire 6 This appliance is supplied with a flue restrictor for use where the flue draught is excessive The restrictor must NOT be fitted where a precast flue or a flue liner is used For all other installations the restrictor should be fitted There may however be certain exceptional circumstances where fitting the restrictor causes the fire to fail the spillage test In such cases th...

Page 18: ...plied with a rear ceramic support bracket Fit this using two screws supplied See figure 14 9 HOTBOX INSTALLATION 9 1 Method 1 Front fixing to fireplace surround 1 Make sure that the fireplace front surround area is sound enough to take the fibre plugs and woodscrews If necessary make sound with a suitable cement 2 Place the hotbox centrally in the fireplace in the position in which it is to be per...

Page 19: ...rill four holes in the rear wall of the fireplace for the eyebolt plugs The holes should be drilled within the range of positions shown in figure 16 using a no 12 masonry drill The holes should be equidistant each side of the centre line of the fireplace to ensure that the appliance finishes centrally in the opening when tension is applied to the cables 3 Insert a fibre plug into each hole Use the...

Page 20: ...fireplace front surround 8 Drill a hole into the fireplace floor through each of the two holes in the base of the hotbox using a no 12 masonry drill See figure 19 9 Insert a fibre plug into each hole Use the fibre plugs supplied with this appliance Never use plastic plugs instead of the fibre plugs supplied Fit a woodscrew in each plug and tighten Always screw the base into position before applyin...

Page 21: ...justers clockwise as far as possible 14 Feed the free length of the cables into the gap between the inner and outer back panels so that they are available to allow easy removal and refitting of the appliance during subsequent service calls Do not cut off the free lengths of cable On precast flue installations feed the cables into the small holes at the base of the side panels See figure 20 9 3 Sea...

Page 22: ...peat this operation until a flame appears at the pilot There may be a delay before the pilot lights due to air being purged from the system When a flame appears at the pilot keep the control knob depressed and hold the pilot ignition position for five seconds When the control knob is released the pilot flame should remain lit 10 2 2 Operating the burner 1 When the pilot burner is operating properl...

Page 23: ...ut 2 After checking turn off the appliance Remove the pressure gauge and replace the test point sealing screw 3 Relight the appliance Turn to the maximum output position and test around the sealing screw for gas soundness with a suitable leak detection fluid 11 CERAMIC WALLS INSTALLATION 1 Fit the ceramic rear wall inside the L bracket on the back face of the burner compartment Push the ceramic wa...

Page 24: ...te each fascia trim should already be positioned on the rear of each trim Each fascia trim should have two magnets If the magnets are not fitted then locate one magnet centrally at each end of the trims 3 Locate the side fascia trims as in figure 25 4 Locate the top fascia trim as in figure 25 5 Fit the burner baffle to the front flanges of the burner To do this place the baffle against the front ...

Page 25: ... the ceramic front coal in position in front of the base coal The front of the ceramic coal should touch the front of the burner module See figure 28 The loose ceramic coals are supplied in three sizes There are two large ceramic coals three medium ceramic coals and 12 small ceramic coals When installing the ceramic coals smooth surfaces should be positioned to the bottom or rear unless stated oth...

Page 26: ... on top of the first row of ceramic coals See figure 30 6 Place a medium ceramic coal into the central valley in the rear ceramic base It is important that this medium ceramic coal has a space behind it Place a small ceramic coal each side of the medium ceramic coal It is important that these small ceramic coals have a space behind them See figure 31 7 Locate the remaining medium ceramic coals in ...

Page 27: ...edominantly blue When operating the fire for the first time some vapours may be given off which could set off smoke alarms in the vicinity These vapours are quite normal with new appliances They are totally harmless and will disappear after a few hours use 15 1 1 Lighting the burner 1 If closed open the isolating valve at the inlet T connector 2 Depress the control knob and rotate it anticlockwise...

Page 28: ...rcuitry and components as described in the servicing section of this guide While cooling the ceramic fuel effect may make some crackling noises This is quite normal 15 2 Check for spillage 1 Close all doors and windows in the room containing the appliance 2 Light the appliance and set the slide control to the maximum burning position 3 Leave the appliance on for five minutes 4 The smoke match shou...

Page 29: ... supervision and spillage monitoring system The pilot unit incorporates a system that 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 appliance Set at the HIGH position and leave for one minute Turn back to OFF to extinguish the pilot Note th...

Page 30: ...the authorised spares Warn that ignoring this advice could cause incomplete clearance of the products of combustion with consequent health hazards 6 Advise the customer that the appliance will operate to its maximum potential if the flue is primed during the first 20 30 minutes of use To do this simply turn the control knob to its highest setting This will also burn off any carbon deposits that ma...

Page 31: ... This is not classified as hazardous waste and may be disposed 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 ...

Page 32: ...ramic fuel effect 3 Support the inlet T connector to avoid straining the pipework and disconnect the appliance from the T connector 4 Detach the burner unit from the hotbox by removing two screws See figure 36 5 Replace in the reverse order 17 4 To remove the pilot unit 1 Remove the burner unit See section 17 3 2 Detach the pilot pipe from the pilot unit 3 Detach the thermocouple from the gas valv...

Page 33: ...7 6 To remove the piezo generator 1 Remove the gas valve as section 17 5 2 Make sure that the tap is in the off position 3 Remove the circlip holding the piezo unit to the tap Remove the piezo unit 4 Replace in the reverse order 17 7 To grease the control tap 1 Detach the gas valve and remove the piezo generator as section 17 6 making sure that the valve is in the off position 2 Remove the two scr...

Page 34: ...nd lift clear 5 Refit in reverse order 17 9 To remove the main burner injector See figure 40 1 Remove the burner See section 17 8 2 Remove the burner clamping screw See figure 40 3 Unscrew the injector from the burner 4 Refit in the reverse order 17 10 To remove the appliance from the fireplace 1 Remove the burner unit See section 17 3 2 If the fire retention is as method 1 See section 9 1 of this...

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