Aarrow Fires Becton 7 mk3 Installation Hearth Requirements, Connecting the GAS Supply

INSTALLATION

HEARTH REQUIREMENTS

To comply with current Building Regulations the fire must stand on a fireproof hearth, which has an upper fireproof layer of 12mm non-combustible material. If the rear of the fire is to be pushed up against a surface it must be of a non-combustible material.

The hearth must protrude at least 25mm in front of the glass window and 150mm either side.

The hearth must not be capable of inadvertent covering by a carpet or rug. This should be achieved by either:

The hearth being 50mm above the level of the room floor. A 50mm high fender or kerb being fixed around the edge of the hearth.

CONNECTING THE GAS SUPPLY

Once the fire is in place it is then possible to connect the gas supply. The gas supply point is located at the rear of the appliance and should be connected in accordance with the following requirements.

Check that the appliance is suitable for the gas supply; refer to data labels on packaging and/or the fire for gas type. Note: Natural gas and Propane (LPG) models are not interchangeable.

The gas installation must be in accordance with the current issue of BS6891.Gas supply pressure at the fire should be 20mbar for natural gas.

The gas supply should be connected with the 1/4"BSP nut and olive with 8mm tubing.

A maximum pipe run of 1.5 meters (or 5 feet) should be adhered to and copper tubing may be used provided a distance of 25mm is maintained between pipe-work and any surface of the fire. A gas service cock should be fitted adjacent to the fireplace to enable safe removal of the appliance for servicing. After fitting the supply, operate the gas cock (supplied) and check all joints up to the termination of the supply pipe for gas tightness using a soap/water solution and the pressure drop method.

To check the pressure to the burner it is necessary to ignite the appliance and set to 'high rate'.

This is carried out by following instructions on pages 9 and 10.

Cold setting pressures are in the Technical data section on page 6.

The pressure test point is located through the hole in the valve bracket marked 'test point',

See Fig.8 below.

Pressure test point

Fig. 8

TEST SEQUENCE

ENSURE FIRE IS OFF

1.Open control door.

2.Loosen test point screw.

3.Connect hose of test equipment to test point through the test point hole in bracket. (If necessary open fire door and remove coal set, base matrix plate and heatsheild. Close door on completion)

4.Turn on fire and set flame on high.

5.Take reading.

6.Turn fire off.

7.Remove test equipment hose.

8.Re-tighten test screw (If necessary replace heatsheild, matrix plate and coal set.

Becton Bunny & Becton 7 mk3 Gas stoves 15