ACR STOVES Woodpecker Stoves WP4LS Technical Manual - Page 5

Browse online or download pdf Technical Manual for Wood stove ACR STOVES Woodpecker Stoves WP4LS. ACR STOVES Woodpecker Stoves WP4LS 18 pages.

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Installation Instructions

Important information

Before installation and/or use of this

appliance please read these instructions

carefully to ensure that all requirements

are fully understood.

This appliance must be installed by a

registered engineer, or approved by

building control, failure to do so may

endanger life and property.

All the below instructions should work in

conjunction with building regulations

document J, if there is a variation the

most stringent requirement should be

adhered to. Each installation is unique

to the property, the information

contained in this manual may not give

exact installation requirements for your

installation.

The installation must comply with

Building Regulations, European

Standards and Local authority bylaws.

Location of the unit

The appliance must stand on a level,

non-combustible hearth with a minimum

thickness of 12mm.

The Woodpecker range of stoves has

been tested and approved for use with a

superficial hearth, therefore the hearth

temperatures are below 100°C and the

use of a constructional hearth is not

necessary.

The superficial hearth must extend fully

beneath the appliance and extend

150mm to either side and 225mm in

front of the appliance.

The hearth should also incorporate a

Metal Parts

This appliance may contain sharp metal

edges, take care when installing or

servicing this appliance to avoid

personal injury. Please use appropriate

personal protective equipment at all

times.

Fire Cement

Some types of fire cement are caustic

and should not be allowed to come into

contact with the skin. In case of contact

wash immediately with plenty of water.

Asbestos

This appliance contains no asbestos.

If there is the possibility of disturbing

any asbestos in the installation of this

appliance then specialist advice must

be sought and appropriate precautions

taken.

clearly defined edge (change of

level/clear demarcation line) to

discourage the placement of

combustible materials within the hearth

area.

The hearth and building construction

must be of a suitable material to comply

with current building and local authority

regulations.

The fabrication of the construction must

have a suitable load bearing capacity for

the appliance and hearth.

If in any doubt, please consult a

competent person for advice before

proceeding.

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Ventilation

Requirements

Building Regulations document J states

that purpose provided permanent

ventilation is not required in England

and Wales unless the appliance nominal

rated output is greater than 5kW.

The Woodpecker range of stoves have a

nominal output of 5Kw and therefore do

not require additional ventilation, unless:

• The air permeability of the building is

less than 5.0m³/ (h.m²), then 550mm

of permanent ventilation/Kw of the

nominal output is required as per

Building Regulations document J.

• If the appliance is installed into or

adjacent to, a room containing an

extractor fan then additional testing

and ventilation is required in line with

Approved Document (A.D.) 1.21

If difficulty in starting the fire or any

excessive fuming is experienced,

ventilation may be used in place as

required to eliminate these flue

problems.

If a flue draught stabiliser is fitted then

extra ventilation is required. See

Document J of the Building Regulations

for detailed guidance especially in new

build properties which often require

purpose provided ventilation be added.

Outside direct combustible air

connection

The Woodpecker range of stoves are

supplied with the ability of using a

dedicated 80mm diameter direct

connection duct through a suitable route

to the outside air. It can be connected to

the rear of the stove and should be

fitted at the time of stove installation.

Only the approved kit for ACR stoves

should be used (DA80 WP4 / DA100

WP5). This is designed to supply all the

necessary air (Primary, Secondary and

Tertiary) for safe combustion and

operation of the stove.

Providing there is no depressurisation of

the property by mechanical or other

types of ventilation, the flue, chimney

and ventilation duct are working

correctly, and properly maintained clear

of obstructions or leaks etc.

The kit supplies all the primary,

secondary and tertiary air to the stove

and may be used where mechanical

ventilation and heat recovery (MVHR)

units are used.

Some additional instructions for

installation are provided with the

dedicated kit supplied.

NOTE: in order to register the

installation with HETAS/Building

Control as of 2016 certain extra

testing and certification is required

if using an outside air connection.

Flue Draft

A flue draught at the flue collar of the

appliance with a minimum reading of

2.2mm to a maximum 3.5mm water

gauge (22 to 35 Pascals) is required for

satisfactory appliance performance.

This relates to 12-25 Pascals at the

tapping on EN13240/13229 test rigs

which is often quoted.

The Woodpecker range requires a

minimum of 12Pa within 3 minutes of

ignition (with the stove door closed) for

correct combustion.

The flue draught should be checked

under fire at start up and high output, if

the values fall outside of the stated

parameters then remedial works should

be carried out.

If it greatly exceeds the recommended

maximum, a draught stabiliser must be

fitted in line with building control

document J so that the rate of burning

can be controlled to prevent overfiring.

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