Installation
Mandatory Requirements
Connection to an appliance which is not connected to the fuel supply, may be carried out by a competent person. However, connection to an appliance that is connected to the fuel supply must be carried out by a CORGI (gas) or OFTEC (oil) registered installer.
The flue system must be installed to comply with Building Regulations Document J (in England, Wales & Northern Ireland) Regulations for Scotland. The installation must also comply with BS7566 pts 1,2,3,4 for oil flues and BS5440 pt 1: 2000 for gas flues up to70kw.
Jointing
The components are joined simply by pushing the engineered tolerance male spigot and female socket together until the stop is reached. No sealant is required. Use of a locking band is optional if greater joint security is felt to be required. The female socket should be installed uppermost to ensure any condensate drains smoothly down inside the flue. Terminals should be secured by a locking band or self-tapping screws.
Any flue pipe (i.e. single wall) connection to the chimney must be made in the same room as the appliance. The chimney must project at least 150mm below the ceiling.
Condensing gaskets should be fitted dry and lubricant applied to the female socket (Prima Plus and Prima+ 1mm only).
Adjustable Length
Exact length can be obtained by use of the adjustable pipe and also the 0-90° extendable adjustable bend. Adjustable pipes are not loadbearing therefore adequate support for the system must be provided immediately above.
Adjustable Bend
Adjustable 0-90° bends enable rapid installation and alignment of the flue between appliance and chimney.
Connection to Appliance
Always use an appliance connector, sealed using fire rope and fire cement or high temperature sealant. Connection to a condensing appliance the correct sealant must be used.
Appliance Removal
Use of an adjustable length immediately above the appliance enables removal of the appliance later without dismantling the full system.
Painting
If required to be painted, simply clean the surface with a solvent cleaner (White Spirit), apply a coat of primer and a top coat of high temperature paint that can withstand 550°C. Extreme care
must be taken when cleaning with solvent to ensure that it does not come into contact with the gasket if fitted.
Installation of Prima Plus or a Prima Plus 1mm as a Liner
The liner is lowered into the masonry stack a section at a time using either a lowering pipe or drain support to take the load. It is recommended that pipes are secured to each other using a locking band, or alternatively in non-condensing applications with self-tapping screws or rivets.
The liner requires support at the base of the stack using a wall support, gather unit or drain support. Access to the base of the stack may well be required to fix the support as well as components such as tees and drain caps. Access will also be required to fix any bends necessary in the system. Intermediate support is required if the chimney length exceeds that given in the load-bearing data table. If insulation is required, normally granules such as Vermiculite should be poured in at this stage after fitting a suitable debris plate at the bottom of the system. Alternatively a solid tube of insulation can be used. To weather the top of the chimney stack and seal any gaps between the liner and the chimney pot appropriate acid-resistant mortar should be used.
