30
LT5052 (ISS 5)
INSTALLING THE PARAGON 2000 MANUAL TURBO INTO A TIMBER FRAME BUILDING OR WHERE
COMBUSTIBLE MATERIALS ARE USED IN THE CONSTRUCTION OF THE WALL.
These instructions are to serve as guidance only, since the construction of timber frame buildings varies from site to
site. It is important to note that where removal of any part of the inner timber leaf of the wall is involved the structural
integrity of the wall must be maintained and the advice of your local Building Control Department should be sought.
Guidelines should be sought from the British Gas Document DM2 and DM3 (Guide for Gas Installations in Timber
Framed Housing) or IGE/UP/7. If the property is under any form of N.H.B.C. cover, it is advised that their advice on this
modification to the property should also be sought.
Either of the two following methods of installation may be adapted for use in timber frame buildings providing extra
care is taken to protect combustible materials from contact with hot surfaces.
Special attention must be paid to the location of the studwork frames of the inner leaf and the appliance positioned
accordingly. Wires and pipes that run within the inner timber leaf must also be located and taken into account when
positioning the appliance.
Method 1: when using an extended fire surround or false chimney breast
The following amendments should be incorporated:
50mm clearance must be allowed from the appliance case sides, rear and base, and 100mm clearance from the
appliance top to any combustibles. These clearances must be maintained by the presence of a purpose provided
cavity box.
The cavity box should be constructed from 12mm “Superlux” or equivalent material and be fixed with an internal
opening height min. 700mm, internal opening width min. 470mm and internal opening depth min 225mm. A hole
of 200mm diameter must be cut in the back face of cavity box, which will be concentric with the flue when the
appliance is positioned.
A 200mm diameter metal sleeve concentric with the appliance flue must be provided to pass through all the non
combustible layers of the wall construction, this sleeve must be a tight fit into the hole at the rear of the cavity
box and must not overhang the cavity by more than 5mm.
The vapour barrier on the back of the inner timber leaf should be carefully cut and fixed to prevent ingress of
damp into the plasterboard layer.
The void around the appliance sides, back and flue when it is positioned inside the cavity box and sleeve must be
packed with “Rockwool”, the top must be packed with 100mm of “Rockwool” note the “Rockwool” must not
overhang the cavity.
The Fanbox must not be installed into any combustible materials if the outer layer of the wall is not brick, stone
or any other non combustible material then it must be surface mounted using the fan box spacer (this is not
supplied as standard) with a 12mm “Superlux” pad between the Fan box spacer and the outside surface of the
combustible wall. Further the 200mm diameter sleeve would need to be extended so that it finishes flush to the
outer surface of the wall.
