Gas Supply Pipe - Valor BR622 Installer's Manual

4.1.3 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 of the fireplace opening together
with secondary fixing to the fireplace floor.
The methods are detailed in section 7 of
this manual. Before selecting the retention
method, consult with the customer.
Method 2 is provided for instances where
drilling holes in the front surface of the
fireplace surround is unacceptable to the
customer or otherwise impractical. N.B. It
is unwise to attempt to drill into marble
without the proper tools and equipment.
If method 1 is chosen, make sure that the
front surround area is sound enough to
take the rawlplugs and woodscrews. If
necessary, make sound with a suitable
cement. If method 2 is chosen, make sure
that the areas at the back and towards the
centre of the fireplace floor are sound
enough to take the eyebolts and screws. If
these areas have deteriorated due to
prolonged use, they should be made
sound with a suitable cement.
4.1.4 Installations using a metal flue box
The whole of the top surface of the metal
flue box must be covered with a 100mm
layer of mineral wool or equivalent
insulation (see figure 2).
4.2 INSTALLATIONS REQUIRING SPACING
KIT 617K
The Valor accessory kit 617K must be
used for all installations described in
section 2.3 of this manual. Full
instructions for its installation are included
with the kit.
4.3 FIREPLACE FLUE PULL
After preparing the fireplace, carry out the
flue flow test as detailed in BS5440: Part 1.
Note - A 13 gramme smoke pellet will
generate the required volume of smoke,
anything smaller may give a false pass
result.
INSTALLER GUIDE
5.1
Page 10
Observe the smoke. If there is a definite
flow into the opening continue with the
installation. If there is not a definite flow,
preheat the chimney for ten minutes and
recheck If there is still no definite flow, the
chimney may need attention. Do not fit
the appliance. Seek expert advice.

5.GAS SUPPLY PIPE

A nut and olive are provided for an 8mm
pipe inlet connection to the elbow at the
bottom front of the appliance. The elbow
can be rotated to allow a connection from
any direction. The elbow includes a valve
for isolating the gas supply.
The supply pipe must be rigid material.
Flexible pipe must not be used.
CONCEALED SUPPLY PIPE CONNECTION
If a concealed connection from inside the
fireplace is required then, before the
appliance is fitted into the fireplace it
will be necessary to extend the supply line
so that it will project through the sealed
opening at the back of the convection box
and run to the elbow at the front. If the
installation includes the optional spacing
kit 617K, the kit and surround should be
installed before extending the supply line.
The pipe run from the supply line up to
the rear opening in the convection box
must be kept away from the area which
will be taken by the convection box when
it is installed (See figure 10).
Note that the centre of the appliance inlet
elbow is 25mm above the fireplace floor.
The inlet elbow should be removed from
the appliance and fitted to the supply pipe
at this stage.