Installation using a 5” Diameter Metal Flue Box
Important: The spigot restrictor marked ’B’ must be fitted. See page 7.
When the metal flue box is to be
It is important that both the back panel and the appliance are sealed to the metal flue box to prevent any leakage of flue products or reduction in the flue draught.
Installation of the Appliance
Check that the chimney conforms to the required specifications as previously stated. Examine the condition and carry out any remedial work necessary, if the flue has been used for solid fuel it should be swept and a smoke test carried out to check that satisfactory smoke clearance has been established. If all the smoke is not drawn into the flue,
GAS SUPPLY
BEFORE COMMENCING WORK, TURN OFF ANY APPLIANCES THAT ARE FED BY THE METER AND ISOLATE THE GAS SUPPLY BY TURNING OFF AT THE METER
The gas connection to this appliance is made with 8mm o/d rigid or semi rigid tube to a combined pressure test/ restrictor elbow situated on the R/H side of the burner. Provision is made i.e. knockout blanks for entry into the box in both L & R hand rear corners and at the L & R hand sides. Any pipe used under the tray must be in rigid tube such as bundy, A suitable piece of bundy is included in the fitting kit to assist the installer..
Where a concealed gas supply is used, the installer is reminded of the requirements of BS 6891 1988 dealing with enclosed pipes. The Standard requires that when a gas pipe is fed through a wall, the pipe should be enclosed in a tight sleeve to protect against failure caused by movement. It shall be constructed to prevent passage of gas either between the pipe and sleeve or sleeve and wall.
Where a gas supply pipe enters the box in any of the positions stated, the hole around the pipe should be sealed with a silicone sealant or similar to prevent Ingress of air into the flue. Permanent sealant e.g. fire cement etc should not be used as these would prevent removal of the firebox.
Dismantling the fire Prior to Installing
It will be necessary to dismantle the burner from the firebox before installing the box in the opening.
To remove the burner from the box unscrew the two screws at the base of the fascia panel and lift the assembly approximately 200mm at the front to clear the fixing flange. When refitting observe that the two feet at the rear of the assembly locate under the two lugs formed in the base of the box assembly.
If the installation has either a 5in (125mm.) or 7in (175mm) flue if will be necessary to select the appropriate restrictor, (See page 7). To insert the correct restrictor plate remove the centre screw securing the fibre retaining strip in position and slacken off the two outer screws to allow the two slots in the restrictor plate to slide behind the two screw heads and replace the centre screw and tighten the outer screws.
Important
THE RESTRICTOR PLATE 'A' AND 'B' (marked 1 dimple/2 dimples) MUST NOT BE USED WITH
The restrictor ‘A’ marked with 1 dimple is for use with 7in (175mm) diameter flues and the restrictor ‘B’ marked with 2 dimples is for use with 5in (125mm) diameter flues.
The appliance is supplied without any Flue Restrictor fitted in position i.e. suitable for
The correct fitting of the restrictor plate is carried out prior to installation. See Fig 4. Two
Page 6
