Rayburn Two-Oven Wartungshandbuch PDF herunterladen (Seite 13)

INSTALLATION INSTRUCTIONS

SITE REQUIREMENTS

1. GENERAL

1.1 These instructions relate to all oil fired Two and Four Oven

Traditional cookers with a conventional flue. These include

models with and without a hot water boiler.

1.2 The Two and Four Oven Traditional are normally delivered

in kit form for assembly on site by an engineer trained by

Redfyre Cookers. Please refer to the Build Instructions

which are supplied separately.

1.3 One very important point to note with the oil fired

models is that the oil control valve is fitted on the left-

hand side of the cooker. When fitting the cooker, extra

clearance is required for the control valve. (See

dimensions diagrams for all clearances).

2. FLUE SYSTEMS

NOTE: The first section of flue from the draught divert to the

sealing plate must be 102mmø (4”),

2.1 This appliance is designed to operate with a Class 2 flue,

nominally 125mm (5”) in diameter. To ensure correct

performance, both flue and termination should conform to

the relevant British Standards.

NOTE: COMBUSTION TESTING, FLUE GAS ANALYSIS

AND DRAUGHT MEASUREMENT MUST BE CARRIED

OUT ON SITE BY THE APPROVED COMMISSIONING

ENGINEER.

2.2 The quality of the flue is vital for satisfactory operation. A

thorough pre-installation check by a flue specialist is

advisable. If an existing flue is to be used, the specialist will

advise on re-lining and the correct choice of cowl or

terminal for site wind conditions etc.

2.3 Before installing the appliance into an existing flue, check

that:

• Theflueisclearofobstructions.Repairanystructural

damage.

• Theflueiscontinuous.Anybreaksinseals,fluelinersetc.

must be rectified. A flexible steel liner (oil grade), BS4543

Parts 1 & 3 is highly recommended.

• Thefluediameterisuniformoveritsentirelength.

• Theflueisnotservinganotherappliance.Neverconnectto

a shared flue.

• Theflueisnotconstructedwhollyofasingle-skinpipe.This

must not be used under any circumstances. It has minimal

heat retention properties, and will lead to an overall loss of

efficiency, as well as condensation in the flue and ovens.

• Vermiculitebackfill,ortheequivalent,isusedwhenevera

flexible liner is installed. It must be sealed top and bottom.

Salt-glazed clay or precast liners are acceptable.

3. FLUE HEIGHT

3.1 A minimum of 3 metres (10 feet) is required between the

cowl and the top of the cooker. This ensures that the flue

gases are vented into relatively still air, and is less affected

by nearby buildings or trees in certain circumstances, trees

or other obstructions may need to be removed.

3.2 Installation with flues in excess of 10 metres in height is not

recommended. Very tall flues are likely to exceed the

maximum flue draught specified in the technical data. High

flue draughts can cause problems with oven and hob

temperatures and increase running costs.

3.3 The cowl must be at least 1 metre above any obstruction

within 600mm, and the siting of the flue should comply

with OFTEC regulations.

4. HORIZONTAL RUNS

4.1 Horizontal runs of greater than 450mm (18”) should be

avoided. If the flue has to be offset, the recommended

angle is 60

. and the legal minimum 45

. Never use a bend

of 90

4.2 If the installation is using an existing flue, horizontal runs

should be avoided. A vertical rise of 600mm (24”) is the

mandatory minimum before turning into the flue. If it is

necessary to exhaust into an extended flue after the

mandatory 600mm rise, the horizontal run must not exceed

450mm.

NOTE: ALL FLUE CONNECTIONS MUST BE FULLY

SEALED AND INSPECTED BY THE INSTALLER ON

COMPLETION.

5. FLUE CLEANING

5.1 Annual inspection and cleaning of the flue is recommended.

Therefore a cleaning door, or some other means of access,

should be incorporated into the system.

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