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LT 7941 Issue No 3 (04/22) 

800 HD with UBL SERVICE / FAULT FINDING INSTRUCTIONS

   
 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for 800 HD UBL

Page 1: ...ndfuturereference IMPORTANT This appliance is guaranteed for 12 months subject to conditions The 5 year extended parts warranty will only be valid if the annual service recommended in this manual has...

Page 2: ...our statutory rights Your warranty commences from the date of purchase and you must retain your receipt or invoice as proof of a purchase date THIS EXTENDED WARRANTY SPECIFICALLY EXCLUDES GLASS AND SO...

Page 3: ...es All installations must be notified to Local Area Building Control either directly or through a Competent Persons Scheme A Building Regulations Compliance Certificate will then be issued to the cust...

Page 4: ...s of heating products we take every care to ensure that the design and construction has to meet the general safety requirements when properly used and installed To this end our products are thoroughly...

Page 5: ...is harmless and will disappear after a short period of time During the normal operation of the fire some black staining may appear on some parts of the fuel bed This is quite normal However if excessi...

Page 6: ...UNLOCK graphic Fig 2 prompting the button to be pressed simultaneously Whilst both are pressed a progress bar Fig 3 will complete If either button is released before the progress bar has completed the...

Page 7: ...nce off press and hold down until the progress bar has completed If the is released before the progress bar has completed the operation will cancel Mode select With the fire running on manual operatio...

Page 8: ...any time Selecting auto control The auto function can only be selected once the appliances has been started and initiated into manual mode Once in manual mode press and release the button to enter th...

Page 9: ...lector wheel to change the minutes Press the button to alternate hours and minutes to make any other alterations Finally press the button to save the clock setting Display Temperature display units us...

Page 10: ...ess to awaken the handset from its dormant sleep mode at any time The Under Bed Light effects can be accessed in three operating modes Access 1 Standby fire off 2 Manual fire on 3 Auto fire on OFF EMB...

Page 11: ...atteries are inserted the handset will attempt to pair Notes If no command is entered within 15 seconds whilst in the LIGHT function the handset will return to the main operating screen Brightness alt...

Page 12: ...ver tighten the glass as this will result in the glass breaking The glass is not covered by warranty Note Never operate the appliance when the glass panel is removed or broken The glass may discolour...

Page 13: ...h great care They can be brushed very gently with a soft brush to remove dust or any deposits A vacuum cleaner may only be used after the loose components and moulded shapes have been removed from the...

Page 14: ...P a g e 12 LT 7941 Issue No 3 04 22 800 HD with UBL USERS INSTRUCTIONS...

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Page 19: ...P a g e 17 LT 7941 Issue No 3 04 22 800 HD with UBL USERS INSTRUCTIONS Silver Birch Fuel Bed...

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Page 24: ...measured as specified in BS7977 1 2009 A1 2013 and the net efficiency rate is 73 1 for natural gas and 76 0 for LPG The gross calorific value of the fuel has been used for this efficiency calculation...

Page 25: ...t Gas Safe installation and user Regulations All relevant parts of the local and national building regulations and all relevant recommendations of the following British standards Failure to do so coul...

Page 26: ...ry fire surround with a 150 degree C minimum rating is required Class One That is a conventional brick or stone chimney as used for a solid fuel appliance with an effective cross sectional dimension o...

Page 27: ...surround design Check the fireplace details first Slide the fire box back into the catchment area and secure the fire box against the front face of the chimney breast Fit the fire place frame to the...

Page 28: ...26 LT 7941 Issue No 3 04 22 800 HD with UBL INSTALLATION INSTRUCTIONS A B C Builder s opening aperture size when fitting hole in the wall boarded edge or slips A Hole in the wall using none combustibl...

Page 29: ...one combustible slips can now be fitted up to the edge of the fire place frame B Dry lined hole in the wall Using superlux heat proof board up to the edge of the fireplace frame The top shaded area be...

Page 30: ...gs and wood screws New plaster board can now be fitted to cover the exposed metal work making sure that no plater joints are positioned directly above the unit as highlighted in the Fig 2 above C Wet...

Page 31: ...ening Installation with a flexible liner The 800 HD with UBL is designed for installation within the masonry chimney with or without a flexible line If the flexible liner option is required the follow...

Page 32: ...r the fire box assembly within the masonry aperture at the same time guiding the gather hood within the guides situated on the top of the fire box Please see Fig 2 Engage the hood studs within the slo...

Page 33: ...the appliance Gas inlet isolation device is located on bottom left hand side of the fire box the gas supply entry point is positioned at the rear bottom on left hand side With the appliance fixing ki...

Page 34: ...ng the cable through the side of the chimney breast It is good practice to run the cable within a sleeve of at least 15mm internal diameter sealing the sleeve using a suitable sealant at the point the...

Page 35: ...ation Note When installing the appliance with a 3 inch 75mm rebated surround the optional 30mm spacer frame Part No 7571 will be required The fire box assembly can be retained using the following two...

Page 36: ...me is supplied with the slip guides attached To improve the overall appearance of the appliance the guide brackets can be detached by removing the No 6 shelf tapping screws from within the fireplace f...

Page 37: ...heck the pressure test point for soundness with detection fluid Refit the gas cover as shown in Fig 4 page 32 Fuel Bed Layout Fuel bed layout should be fitted using the guidance stipulated on pages 13...

Page 38: ...nlet air channel All smoke must be drawn into the inlet channel if the spillage test is satisfactory If spillage occurs wait a further five minutes and repeat the test Repeat the test with doors open...

Page 39: ...frame Slide the glass in front of the frame and push in to place making sure that the glass is pushed in to the glass channel properly and sits in the bottom of it and that the inner frame is still c...

Page 40: ...dance with the Service instruction section Point out the position of the power source for the appliance plus demonstrate using the additional battery holder and adaptor lead the battery backup option...

Page 41: ...ay To undertake this check the following procedure should be followed Remove the four M4 nuts fixing the glass clamp to the glass panel See Fig 8 on page 11 With the nuts removed pull the glass clamp...

Page 42: ...ny restrictions Re assemble in reverse order Pilot Linting Check the pilot aeration hole for linting use a vacuum clearer nozzle taking care not to damage the pilot head Do not blow compressed into th...

Page 43: ...P a g e 41 LT 7941 Issue No 3 04 22 800 HD with UBL SERVICE FAULT FINDING INSTRUCTIONS Fault Finding Charts...

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Page 45: ...P a g e 43 LT 7941 Issue No 3 04 22 800 HD with UBL SERVICE FAULT FINDING INSTRUCTIONS...

Page 46: ...P a g e 44 LT 7941 Issue No 3 04 22 800 HD with UBL SERVICE FAULT FINDING INSTRUCTIONS Wiring Diagram Attach to the Oxy Pilot...

Page 47: ...e four screws retaining the gas inlet plate and the ECU cover Shut off the restrictor elbow and disconnect the 8mm inlet nut Switch off the mains supply from the main supply plug socket Undo the M3 nu...

Page 48: ...do the compression nut on the supply pipe Remove the two screws retaining the burner assembly to the carrier and lift away from the injector Unscrew the locking nut holding the injector and silencer b...

Page 49: ...g the burner tube to the centre bracket With the fixing pin remove lift off the retaining bracket from the main assembly Finally disengage the burner tube from the injector tip Clean or replace the bu...

Page 50: ...e UBL Drive Board Disconnect the three leads into the UBL Drive Board Replace and re assemble in reverse order Replacement of the LED Strip Switch off the mains supply from the main supply plug socket...

Page 51: ...paired again to the ECU unit Press and hold approx 5 seconds until the menu graphic Completes see Fig 3 This will access the menu see Fig 4 Use the selector wheel and select the gas fire option Press...

Page 52: ...Front Injector Mrk 72 8197 Side Injector Mrk 79 x 2 8198 ODS Unit oxy Pilot 7280 Control Valve 6590 Electrical Control Unit ECU 7150 LED driver 7835 LED Board 7836 Ignition Lead 6646 9V transformer 7...

Page 53: ...P a g e 51 LT 7941 Issue No 3 04 22 Glass panel NON reflective 7599 Standard 7475 Rear glass liner 7725 Ceramic liner behind glass 7723 Side glass liner 7726 Ceramic liner behind glass 7724...

Page 54: ...P a g e 52 LT 7941 Issue No 3 04 22 Register your appliance online today to activate your warranty...

Page 55: ...the manufacturer s instructions Hearth Requirements where fitted Is the hearth constructed from non combustible material Is the hearth a minimum of 12mm thick with a minimum floor to top surface of 5...

Page 56: ...e the manufacturer s specified spare part when replacing controls SERVICE 01 Date Engineer name Company name Telephone No Gas safe register No Comments Signature SERVICE 02 Date Engineer name Company...

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Page 60: ...fitted A 0791 Vermiculite liners fitted Pre Fix TD Data Badge On Plate Burner Tray Firebox Assembly Air test Completed Grommet 1092 Glass Panel Silicone Strip 4818 Liners sides rear top AAA Batteries...

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