Dimplex Langbrook LBK5 Instruções de Operação descarregar pdf (Página 6)

Flue Deposits

If the chimney was previously used as an open re, it is possible

that the higher ue gas temperatures generated by the stove

may loosen deposits that were previously adhered to the inner

surface of the ue pipe which could cause blockage of the ue

pipe. 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.

Flue Draught

The chimney should be checked before the stove is installed to

ensure that there is adequate ue pull. The draught can be checked

initially by using a smoke match close to the ue opening. If the

chimney doesn’t pull the smoke it may suggest that the chimney

needs further attention. Any remedial work to the chimney ue

should be carried out by a suitably Qualied Engineer.

A ue draught of minimum 12 Pascal to maximum 25 Pascal is

required for satisfactory appliance performance. The ue draught

should be checked under re at high output and if it exceeds the

recommended maximum a ue draught stabiliser (or ue damper

as it is also known) must be tted so the rate of burning can be

controlled and prevent overring.

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 ue draught stabiliser

has been tted. The required open air vent sizes are as follows:

Table 4 - Additional Room Ventilation Required

Standard build dwellings {air permeability >5.0m³ /(h.m²)}

No Flue Stabiliser 2 cm²

With Flue Stabiliser 18 cm²

Airtight build dwellings {air permeability ≤5.0m³ /(h.m²)}

No Flue Stabiliser 29 cm²

With Flue Stabiliser 45 cm²

An extractor fan must not be used in the same room as this

appliance.

Floor Protection & Installation Clearances

In all instances the stove should be positioned on a non-

combustible hearth. The construction of the hearth must conform

to Building Regulations, must be rm, non-combustible and capable

of supporting the stove. Care should be taken to ensure the stove

is level and the hearth is secure.

The stove can be installed in suitably sized recess, either purpose

built or an existing replace. In this instance a solid constructional

hearth of minimum 125mm must be used, including the thickness

of the floor and any decorative top surface (e.g. tiling). We

recommend a permanent free air gap of at least 150mm should

be left around the sides where possible and 300mm around the

top to obtain maximum heat output and for access to the rear of

the stove. Place the product in the desired location on reproof

hearth taking note of installation clearances from adjacent walls

(Fig 4). Adjust the screws on the bottom of the feet to ensure the

stove is level and steady (see ‘A’ Fig 2).

The stove can also be installed freestanding in the room. In this

instance a reduced thickness hearth may be used, which must

be made from non-combustible board, sheet or tiles of minimum

thickness12mm. (Fig 5) shows the minimum distances required

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from the hearth edge to the sides of the stove.

In all cases allow an apron of at least 300mm at the front of the

stove in case of spills when de-ashing.

Table 5 shows the minimum safe distances to combustable

materials which must be observed. Any surrounding combustible

material should not exceed 80°C.

Table 5 Sides Rear

Langbrook 5kW 500mm 650mm

Flue Pipes

The ue pipe used to connect to the stove should be made of cast

iron, 316 grade stainless steel or vitreous enamelled steel, nominal

thickness 1.2mm. The diameter of the ue pipe should be 125mm

(5”) for the Langbrook 5kW model.

Connect the ue pipe to the stove making sure that it ts snugly

into the base of the ue collar . Seal the collar and ue connection

with re cement or with other suitable high temperature sealant.

Add ue sections as required; note that all ue sockets must face

upwards. Ensure that the ue pipe end is no closer than 76mm

to the side or rear of the chimney walls. It is essential that all

connections between the stove and the chimney ue are sealed

and made airtight.

Avoid using bends greater than 45° to the vertical (Fig 6). All ue

pipes should be as close to vertical where possible. For rear ue

connection the length of the horizontal run of the ue pipe should

not exceed 150mm (Fig 7). Both chimney and ue pipe must be

accessible for cleaning and if ALL parts of the chimney cannot be

reached, a soot door must be tted to enable this to be done.

This product should not be installed on a shared ue.

Existing Fireplace

An existing replace opening can be bricked up or sealed with a

ue pipe may then be used to connect the stove to the chimney.

Ideally the old replace should be lled in so that there is a smooth

streamlined entry into the ueway. (Fig 7)

Typical installation for Inglenook Fireplaces

Inglenook replaces can have very large bore chimneys (Fig 8).

Check with your installer – you may need a stainless steel exible

ue liner for solid fuel tting.

Flue Damper (Not Supplied)

When burning wood, a ue damper may be tted 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 ow through the stove and

ue. Shutting the damper restricts the ow, slowing the rate of

burning. The damper should be tted to the stove ue and should

be the same size as the ue pipe. As a rule it should be tted no

closer than 700mm from the ue outlet of the appliance.

A ue damper should not be tted when burning solid fuels

other than wood.

Commissioning

Upon completion of installation, the stove and ue system should

be tested by a suitably qualied 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 ue with a blowlamp or similar for about 10 minutes.

Place a lit smoke pellet on the centre of the grate with the air

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Dimplex Langbrook LBK5 Instruções de Operação Página 6

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