Flue Instructions - Johnson & Starley RenoXtra 30CA Installation, Maintenance And Servicing Instructions

10.

FLUE INSTRUCTIONS

FOR A DETAILED INFORMATION MANUAL ABOUT THE FLUE SYSTEMS AVAILABLE
PLEASE REFER TO OUR RENO, CONCENTRIC & TWIN FLUE INSTALLATION INSTRUCTION
PUBLICATION No. ZZ1191.
10.1 The Reno Combi Boiler is certified as a heating boiler with corresponding flue systems
according to EU Directive 90/396/EEC on gas-fired devices. These installation instructions
are covered by this certification and are referred to in the design approval test certificate.
10.2 The installation of the boiler and flue system must be in accordance with the Gas Safety
(Installation and Use) Regulations 1998 and the Building Regulations. If no specific
instructions are given, reference should be made to the relevant codes of practice.
THESE RELEVANT STANDARDS SHOULD BE FOLLOWED
BS 5440:1 Flues and ventilation for gas appliances of rated heating input not
BS 5440:2 Flues and ventilation for gas appliances of rated heating input not
Ensure all legislation, regulations and directives mentioned are observed.
10.3 Two types of flue systems are available for the Reno Boiler Range. The standard
concentric flue system 60/100 (100mm diameter) and the concentric twin flue system
80mm which allows for longer flue duct lengths to be achieved.
10.4 The air/flue duct operates at very low temperatures therefore no clearance is necessary
between the air duct and the adjacent services.
10.5 Ensure while installation work is being carried out that no debris such as swarf, filings or
fragments of mortar are allowed to remain in the air/flue duct.
10.6 TYPE OF FLUE SYSTEMS
10.6.1 The standard concentric flue system 60/100 (100mm diameter)
10.6.2 The air/flue duct operates at very low temperatures therefore no clearance is
necessary between the air duct and the adjacent services.
10.7 FLUE TERMINAL POSITIONS
10.7.1 The following information provides the general requirements for siting flue
terminals. As part of the recommendation given in BS 1550 Part 1. For IE
recommendations, see the current issue of I.S. 813 "Domestic Gas Installations."
Also publication a "Guide for Gas Installations in Timber Framed Housing
DM2" or consult your local gas region, MUST be consulted when installing the
appliance into a timber-framed building.
NOTE: Due to the nature of the boiler, water vapour will discharge from the flue. This
should be taken into account when siting the flue
10.7.2 Both the horizontal and vertical terminals must be positioned on the outside of the
building and the free passage of air must be available at all times. It is not
recommended to position the terminal close to projections especially under a
balcony or near to a drainpipe.
10.7.3 Ensure that combustion products cannot enter the building where the heater is
installed or near to any other building where doors or windows may be open.
10.7.4 Recommended terminal positions for both horizontal and vertical flues are shown
and flue components and installation options are also detailed.
10.7.5 Where the lowest part of the flue terminal is located less than 2 metres above the
ground, a balcony or above a flat roof across which there is access, the terminal
MUST be fitted with a guard (Part No: 1000-0019710) which is available from
Johnson & Starley. The distance between the guard and the nearest part of the
terminal must not be less than 50 mm.
10.7.6 The Flue MUST NOT be installed under a car port.
10.8 PLUME TERMINAL OUTLETS
10.8.1 A flue duct outlet of an appliance should be at least 600mm from the boundary
line when facing it and at least 300mm from the boundary line when running
parallel to it. (see Fig 6)
NOTE: When the flow of products is at an angle to the boundary, the 600mm
dimension may be measured in the direction of the flow, as long as the terminal
is not less than 300mm from the boundary.
10.8.2 It is recommended the terminals are not sited within 2 m of an opening in an
adjacent building or within 2m of the boundary facing the terminal if the plume
is likely to cause a nuisance to a neighbour, e.g discharging over a walkway or
patio.
1
exceeding 70kW (net) : Flues
exceeding 70kW (net) : Air Supply
www.johnsonandstarley.co.uk