Installation Requirements - Worcester Greenstar Heatslave 12/18 Technical Information

Option 1
Top outlet
Maximum total straight flue length
80/125mm dia. 100/150mm dia.
Heatslave 5,000mm
Heatslave External** –
Flue components required
Flue Diameter Description Quantity Worcester Part No.
Greenstar Heatslave
125mm Vertical External Flue Kit 1 7 716 190 053
125mm External Flue Extension up to 5 7 716 190 054
125mm External 45º Bends (pair) 1 7 716 190 056
Option 2
Side outlet
Maximum total straight flue length
80/125mm dia. 100/150mm dia.
Heatslave 4,000mm
Heatslave External 4,000mm
Flue components required
Flue Diameter Description Quantity Worcester Part No.
Greenstar Heatslave
125mm Vertical External Flue Kit 1 7 716 190 053
125mm External Flue Extension up to 4 7 716 190 054
125mm External 90º Bend 1 7 716 190 055
Greenstar Heatslave External
125mm Vertical External Flue Kit 1 7 716 190 053
125mm External Flue Extension up to 4 7 716 190 054
125mm External 90º Bend 1 7 716 190 055
**Top outlet not available on Greenstar Heatslave External models.
Note: For satisfactory flue performance it is recommended that no more than
2m of the vertical flue is run horizontally.
28
Option 3
Rear outlet
Maximum total straight flue length
80/125mm dia. 100/150mm dia.
Heatslave 5,000mm
Heatslave External 5,000mm
–
–
Flue components required
Flue Diameter Description Quantity
Greenstar Heatslave
125mm Vertical External Flue Kit 1
125mm External Flue Extension up to 5
Greenstar Heatslave External
125mm Vertical External Flue Kit 1
125mm External Flue Extension up to 5
–
–

Installation requirements

Installation regulations
The appliance should be installed by a competent person.
The person installing the appliance should be aware of the
Health and Safety at Work Act and take appropriate action to
–
ensure that the regulations are adhered to. In order to give
–
optimum efficiency and trouble-free operation the appliance
must be commissioned by a qualified OFTEC engineer.
Worcester Part No.
The compliance with a British Standard does not, of itself,
7 716 190 053
confer immunity from legal obligations. In particular the
7 716 190 054 installation of this appliance must be in accordance with the
relevant requirements of the following British Standards and
regulations in respect of the safe installation of equipment.
7 716 190 053
7 716 190 054
BS 5410: part 1 & 2: Code of Practice for Oil Fired Boilers.
BS 799: part 5: Specification for Oil Storage Tanks.
BS 7593: Code of Practice for treatment of water in
domestic hot water central heating systems.
BS 5449: part 1: Specification for forced circulation hot
water central heating for domestic premises.
BS 5955: part 8: Specification for the installation of
thermoplastic pipes and associated fittings for use in
domestic hot and cold water services and heating systems.
BS 7291: Thermoplastic pipes and associated fittings for hot
and cold water for domestic purposes and heating
installations in buildings.
BS 7074: part 1: Application, selection and installation of
expansion vessels and ancillary equipment for sealed water
systems.
BS 7671: IEE Wiring Regulations, current edition.
The Building Regulations Part J and L1 England and Wales;
Part F and Part J Section III Scotland; Part L and Part F
Northern Ireland.
Local water company bye-laws.
The Control of Pollution (Oil) Regulations.
OFTEC Standards
To ensure that the installation will perform to the highest
standards, the system and components should conform to
those mentioned in these instructions.
Sealed system installation
The Greenstar Heatslave, designed for sealed systems,
incorporates a pre-plumbed expansion vessel, pressure
relief valve set to 3bar, automatic air vent and pressure
gauge. The expansion vessel fitted to the appliance will
accommodate differing system volumes depending on initial
charge pressure and system pre-pressurisation. Under
certain circumstances the system volume may be in excess
of that catered for by the expansion vessel provided. In this
instance an additional vessel should be fitted as close as
possible to the return connection of the appliance. Filling of
the system can be from a make-up vessel, fitted with a
non-return valve and mounted above the highest point in
the system. Alternatively, and to comply with the new Water
Authority requirements, the system may be filled through a
temporary hose connection to the mains water supply
provided that a double check valve assembly and test point
are fitted on the system side of the temporary connection.
Radiator valves
Loss of water and drop in pressure from a sealed primary
system will necessitate a continuous cycle of recharging
with fresh water and consequential introduction of air –
a corrosive element – into the system. In order to minimise
leakage and prevent early corrosion it is important that all
joints are good and all components are suitable for use in a
sealed system. Particular care should be exercised when
fitting radiator valves and only those of high quality to
BS 2767:10 should be used.
29