Note: these instructions should be read carefully and retained for future reference. Please leave these instructions with the user. The Duet is available in a left and a right version. According to commonly accepted definitions in the Fire place business (in front view) the left version has a blinded side at the right and a right version has a blinded side at the left.
2 Safety and general information Before installation, ensure that the local distribution conditions (identification of the type of gas and pressure) and the adjustment of the appliance are compatible. This gas appliance is factory set and can not be adjusted. This appliance does not contain any component manufactured from asbestos or any asbestos related products.
The appliance is of the type C11/C31. The appliance will need to be supplied with the approved Faber flue pipes and terminal, it is not possible to supply your own. The minimum effective height of the flue system must be 1 meter.
Determine with the help of appendix A, B and C if the desired routing is possible. To establish this you will need to calculate: The effective height (this is the real difference in height between the upper side of the appliance and the terminal) The total horizontal extension.
Using an existing chimney. You can connect the appliance onto an existing chimney. The existing chimney then functions as air supply, where a flexible stainless steel liner (to BS715) of 100 mm performs the flue function. Requirements: • Any existing chimney used as an air supply must only service this appliance. •...
4 Instruction for Installation Gas Connection • Installation pipes should be in accordance with BS 6891. Pipe work from the meter to the appliance must be of adequate size. • The complete installation including the meter must be tested for soundness and purged as described in the above code.
• Push the glass upwards so that the bottom is free of the groove and now gradually tilt the glass inwards and downwards. (see fig. 4.2 and 4.3) Placing the appliance • Follow the instructions as indicated in the installation instructions before you continue installing.
bottom of the recess. (see fig. 1.2). This because of the extra height of the cover plate. • The chimney breast can be constructed in the same way as described in par. 4.5. • The cover plate can be placed onto the built-in rack now. Placing the side glas.
5 Commissioning (functional checks) For a pre-delivery check, carry out the following tests: 5.1.1 Check function and ignition pilot light and main burner. • Check whether the pilot light is not covered by chips, a log or pebbles. • Ignite the hearth as is described in the user’s manual. •...
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5.1.3 Checking the initial pressure and the burner pressure The appliance has been adjusted to the correct burner pressure. Adjustment of the burner pressure is not necessary. Because the initial pressure after DIY installation is not always correct, we recommend that the initial pressure is checked after installation and repairs. Measuring initial pressure: •...
6 Handing over (final check and customer briefing) Instruct the customer on the full operation of the appliance and the remote control, including replacement of batteries Advise the customer how to clean the appliance including the glass Hand over these instructions including the user guide to the consumer Recommend that the appliance should be serviced by a competent person at least once a year 7 Servicing...
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Attention: Before placing the glass: check the glass sealing rope is in good condition and makes an effective seal. Be sure that there are no fingerprints on the glass. It is not possible to remove those prints after you burn the appliance for a while (they are burnt in). Place the glass in front of the appliance and fix the glass frame or use the glass clamps.
Appendix A: Example calculation Calculation 1: Calculating horizontal extension fig. 2a: Flue length C + E = 1m + 1m Elbows D = 2m Total horizontal extension Measure or calculate effective height (Hvert) Flue length A Roof mounted terminal Total effective height Always check if the calculated situation is allowed (see appendix B: Flue restrictor) Calculation 2:...
Determine according to the table the right flue restrictor size • When meeting an X, and when the values are outside the table, the combination is not allowed • Normally the 30 mm flue restrictor is pre-installed Horizontal length (m) Duet > > > >...
Appendix C: Installation of the flue Connection with use of concentric duct material Make a hole of ø 153 mm for the wall or roof mounted terminal. The horizontal pipes need to rise away from the appliance at a rate of 3 degrees per metre Build the system starting from the appliance on.
Appendix D: Technical specifications Flatburner Flatburner Flatburner Country UK / IRL UK / IRL II 2E+3+ II 2H3+ Appliancetype C11 of C31 C11 of C31 Reference gas Input (nett) Efficiency class Inlet pressure mbar Gas rate* 1016 Gas rate* gram/h Working pressure (high) mbar 12.0...