2.2. Flue connection
The Belfort balanced flue is approved to be vented to
outside through an adjacent exterior wall. The venting
system mu st comp rise of th e specified ve nting
components listed below.
To join the flue sections adopt the following. The
crimped section of the flue should always face outward.
The flue components listed in the above table must be
assembled as shown in the diagram (fig. 6).
When the stove is sited in a corner, the optional
balanced flue elbow 135° must be fitted on the stove
flue outlet (B, fig. 5).
2.2.1. Sealing the flue joints
The flue joints must be weather sealed to prevent
moisture entering the flue system. It is recommended
that the flue joints be sealed with a high temperature
tape, such as aluminium tape (fig. 5).
2.2.2. Vent terminal
The vent terminal must be located in accordance with
BS5440 : Part 1:1990 for natural draught balanced
flues. This standard is summarised in diagram (fig. 4).
Timber framed buildings : When installing the flue in
p r o p e r t i e s o f t i m b e r f r a m e d c o n s t r u c t i o n , t h e
regulations (BS 5440 : Part 1:1990) must be adhered to.
2.2.3. Post installation checks
Before leaving the appliance connected to the gas
supply, the installer is required to visually examine the
appliance and flueway to ensure that :
-
The seal between the combustion chamber and the
room is intact and in good condition.
-
The flue has been correctly sealed using the sealing
tape as recommended (rep. 23, p. 13).
-
There a re no debris con tained within the flue
assembly.
-
The joint between the terminal and the wall is
weatherproof.
-
All pipe work must be purged.
2.3. Ventilation (G.B. Only)
This balanced flue gas stove has no requirement for
additional ventilation in the room (in accordance with
BS 5871 part II).
2.4. Connecting the gas supply
Ensure that the gas supply pipework is capable of
delivering the required volume of gas in accordance
with the relevant British Standards.
Do not make any connections to the appliance until the
pipe work has been purged to expel any dust or debris.
Failure to do this may result in a blockage in the system
that will invalidate the guarantee.
Final connection should be made using 8 mm semi rigid
pipe no more than a metre in length from either ; left or
right utilising the 8 mm elbow supplied.
The gas supply to the stove should terminate with a
standard type safety/restrictor tap.
A gas soundness test must be carried out before
operating the stove.
The 8 mm diameter semi rigid gas inlet pipe should be
connected to the inlet of the gas valve using the nut and
8 mm olive supplied. Support the control whilst finally
tightening the supply pipe. The gas supply to the fire
should be terminated near the fireplace with a safety
type service tap.
2.5. Pressure testing
The gas pressure to the stove must be measured at the
burner test nipple.
-
For Propane this is 35.5 mbar measured with the
appliance in the full rate position.
-
For Natural gas this is 18,5 mbar measured with the
appliance in the full rate position.
The pressures measured at this point must be equal to
the Burner Pressure as shown in the table on page 3. A
tolerance of +/- 0.5 mbar is allowable.
Model. 154 05 06 / 154 05 07
Balanced flue Gas stove
Technical manual
7
