Site Requirements - Dovre 425 Instructions For Use Installation And Servicing

Installation Instructions
1. Flue & Chimney Requirements
1.1 The chimney or flue system must comply with the rules in
force, and must be a minimum of 127mm in diameter. (5").
1.2 The minimum flue height for the appliance must be 3
metres (10ft). Any horizontal flue run from the rear outlet
must not exceed 100mm from the back of the appliance.
1.3 The chimney or flue must be free from any obstruction. Any
damper plates must be removed or secured in the fully
open position, and no restrictor plates fitted.
1.4 The chimney must be swept prior to the installation, but it
need not be swept if it can be seen the chimney is clean
and unobstructed throughout its entire length.
1.5 A5" (127mm) liner must be used if fitting the appliance into
an existing brick built chimney.
Larger lined flues can work, but in some instances could
cause cold start flue problems resulting in nuisance
shutdown. Lined flues above 7" (175mm) are not
recommended.
1.6 Due to recent changes to European chimney standards,
new flues and chimneys are described by their temperature,
pressure and resistance to corrosion, condensation and fire.
To assist in identifying the correct flue system, the minimum
flue specification is shown in the Technical Specification.
Existing chimneys are not covered by this system.
2. Flue Options
A range of Vitreous Enamel Gloss Black flue pipe is
available to compliment the Dovre 425. Please contact
your Dovre retailer for further information.
3. Gas Supply
THIS APPLIANCE IS INTENDED FOR USE ON A GAS
INSTALLATION WITH A GOVERNED METER.
3.1 Before installation, ensure that the local distribution
conditions (identification of the type of gas and pressure)
and the adjustment of the appliance are compatible.
3.2 Ensure the gas supply delivers the required amount of gas
and is in accordance with the rules in force.
3.3 You can use soft copper tubing on the installation and soft
soldered joints outside the appliance and below the fire.
3.4 A means of isolating the gas supply to the appliance must
be provided independent of any appliance control.
3.5 All supply gas pipes must be purged of any debris that may
have entered prior to connection to the appliance.
3.6 The gas supply must be installed in a way that does not
restrict the removal of the appliance for servicing and
inspection.
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Site Requirements

IMPORTANT: Ensure any national ventilation
requirements are taken into account during installation
of the appliance.
UK ONLY:
The Dovre 425 has a nominal input not exceeding 7.0kW
and does not normally require any additional permanent
ventilation.
FOR THE REPUBLIC OF IRELAND REFER TO THE
RULES IN FORCE FOR VENTILATION REQUIREMENTS.
5.1 Building Regulations state this appliance must stand on a
non-combustible hearth that is at least 12mm thick and
projects 50mm minimum from the base of the appliance in
all directions, however Dovre recommend the hearth
extends to the following dimensions, see Diagram 1.
1
MINIMUM CLEARANCE
5.2 The appliance is not suitable for installation against a
combustible wall. All combustible materials must be
removed from behind the appliance.
5.3 Ensure that all minimum clearances to combustible
materials are complied with, see Diagrams 2 & 2A.
The specified clearances provide the minimum distance to
combustible materials. If the appliance is intended to be
installed into a non-combustible opening the clearance to
the sides and above the appliance can be reduced.
However, it is recommended that the specified clearances
are maintained irrespective of the materials used in the
construction of the opening to allow adequate air flow and
access to controls. The clearance at the rear of the
appliance must always be a minimum of 50mm.
4. Ventilation
5. Appliance Location
A = 908mm
B = 469mm
C = 12mm