Dimplex Westcott WST4i Instruções para o utilizador - Página 5
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Flue Deposits
If the chimney was previously used as an open fire, it is possible
that the higher flue gas temperatures generated by the stove may
loosen deposits that were previously adhered to the inner surface
of the flue pipe which could cause a blockage. We recommend
that in this situation a second sweeping of the chimney should be
carried out within one month of initial stove use after installation.
Stove Assembly
1.
Remove the straps and lift off the upper box
2.
Remove the plastic bag, Open the stove door and remove all
the contents including the fixing bar (Fig 4).
3.
Carefully tip the stove onto its back and remove the M8 screw
using a 14mm spanner (Fig 5).
4.
Secure the fixing bar using the hinge pins and after feeding
the tightening bar through the fixing bar, add the washers and
wingnut onto the end (1 & 2, Fig 6).
5.
Open the sealing kit supplied and glue sealing rope into the
channel on rear edge of appliance (3, Fig 7). Use suitable
protective gloves when handling glue to prevent contact. In
case of contact, wash immediately with plenty of water.
6.
Remove the grate and the baffle plate
inset stove into position in the fireplace and mark the intended
position of the fixing screw through the hole in the bottom of
the appliance (6, Fig 8). Remove the stove and drill a hole
then insert the rawl plug supplied. Re-position the stove and
screw into place.
7.
Create a seal with the fascia of the fireplace making sure
the rope seal comes into contact with the fascia. Place
hand through the stove collar and tighten the wingnut on
the tightening bar (7, Fig 7). The fixing bar creates pressure
when it contacts the chimney/lintel. The stove should be tightly
sealed to the fireplace fascia.
Room Ventilation
For safe operation this stove must be provided with combustion
air supply in addition to normal room ventilation, in accordance
with Building Regulations. Minimum ventilation requirements vary
depending on whether the dwelling is considered to be of standard
construction or of airtight construction, or if a flue draught stabiliser
has been fitted. The required open air vent sizes are as follows:
Standard build dwellings {air permeability >5.0m³ /(h.m²)}
No Flue Stabiliser
With Flue Stabiliser
Airtight build dwellings {air permeability ≤5.0m³ /(h.m²)}
No Flue Stabiliser
With Flue Stabiliser
Flue Draught
The chimney should be checked before the stove is installed to
ensure that there is adequate flue pull. The draught can be checked
initially by using a smoke match close to the flue opening. If the
chimney doesn't pull the smoke it may suggest that the chimney
needs further attention. Any remedial work to the chimney flue
should be carried out by a suitably Qualified Engineer.
A flue draught of minimum 12 Pascal to maximum 25 Pascal is
required for satisfactory appliance performance. The flue draught
should be checked under fire at high output and if it exceeds the
recommended maximum a flue draught stabiliser (or flue damper
as it is also known) must be fitted so the rate of burning can be
controlled and prevent overfiring.
An extractor fan must not be used in the same room as this
appliance.
(Fig 3).
(4 & 5, Fig 8). Place the
No additional vent required
13 cm²
24 cm²
37 cm²
- 2 -
Flue Damper/Draught Stabiliser (Not Supplied)
A flue damper may be fitted to reduce the draught through the
stove if the draught is too high. When the damper is set in the
open position the chimney draws at full draught, increasing the
volume of air flow through the stove and flue. Shutting the damper
restricts the flow, slowing the rate of burning.
The damper should be fitted to the stove flue and should be the
same size as the flue pipe. As a rule it should be fitted no closer
than 700mm from the flue outlet of the appliance.
A flue damper should not be fitted when burning fuels other
than wood.
Floor Protection & Installation Clearances
In all instances the stove should be positioned on a non-combustible
hearth and located in a suitable solid fuel fireplace recess. The
construction of the hearth and fireplace recess must conform to
Building Regulations, must be firm, made from non-combustible
materials and capable of supporting the stove. Care should be
taken to ensure the stove is level and the hearth is secure. The
hearth itself should not be less than 125mm thick, including the
thickness of the floor and any decorative top surface (e.g. tiling).
Allow an apron of at least 225mm at the front of the stove in case
of spills when de-ashing and 150mm on either side (Fig 9 & 10).
All walls adjacent to the hearth should be made from solid non
combustible material and be made with minimum thickness as
follows:
Appliance distance
Min Wall Thickness
X from wall
Y
less than 50mm
200mm
50mm and over
75mm
The minimum safe distances to combustable materials that
must be observed is 275mm to sides/front, 295mm to top.
Any surrounding combustible material should not exceed 80°C.
Commissioning
Upon completion of installation, allow a suitable period of time for
any fire cement or mortar to dry out. The stove and flue system
should then be tested by a suitably qualified person to make sure
it is safe for normal use. A smoke draw test should be completed
to check for soundness of joints and seals and also that all smoke
and fumes are taken from the appliance up the chimney and
emitted safely.
First warm the flue with a blowlamp or similar for about 10 minutes.
Place a lit smoke pellet on the centre of the grate with the air
controls open. Close the door – the smoke should be drawn up the
flue and be seen to exit from the flue terminal. Complete the test
with all windows and doors shut in the room where the appliance
is fitted. If a ceiling fan is present it must be operated on max for
the duration of the test. If there are any extraction fans in adjacent
rooms these too must be operated on maximum setting during the
test with the interconnecting doors open. If any spillage occurs,
recheck the suitability of the flue system making sure there is
adequate air supply to the room (as per Building Regulations).
Light the appliance and slowly increase the temperature to medium
operating levels. The stove should not be run at full output for the
first 3-4 burn cycles. Open the main fire door when the appliance
reaches normal operating condition and carry out a spillage test
using a smoke match or pellet around the door opening. If any
spillage occurs, open all windows, allow the fire to go out and
recheck the flue system and ventilation.
UK
Min solid wall height
3 0 0 m m a b o v e t h e
appliance and 1.2m
above the hearth