Worcester GB162-65 Installation And Servicing Instruction page 8

KEY TO SYMBOLS AND SAFETY INSTRUCTIONS
IMPORTANT
The service engineer must complete the Service Record
on the Installation Checklist after each service.
INSTALLATION REGULATIONS
Current Gas Safety (Installation & Use) Regulations:
All gas appliances must be installed by a competent
person in accordance with the above regulations.
Failure to install appliances correctly could lead to
prosecution.
The appliance must be installed in accordance with, and
comply to, the current: Gas Safety Regulations, IEE
Regulations, Building Regulations, Building Standards
(Scotland) (Consolidation), Building Regulations
(Northern Ireland), local water by-laws, Health & Safety
Document 635 (The Electricity at Work Regulations
1989) and any other local requirements.
Directives:
• 2009/142/EEC gas appliance directive
• 92/42/EEC boiler efficiency directive
• 73/23/EEC low voltage directive
• 89/336/EEC EMC directive
• 97/23/EC pressure equipment directive
• any relevant requirement of the local authority.
British Standards:
Where no specific instruction is given, reference should
be made to the relevant British Standard codes of
Practice.
BS4814:1 Specification for expansion vessels using an
internal diaphragm, for sealed hot water
heating systems.
BS5482 Code of practice for domestic butane- and
propane gas-burning installations.
Installations at permanent dwellings,
residential park homes and commercial
premises, with installation pipework sizes
not exceeding DN 25 for steel and DN 28 for
corrugated stainless steel or copper.
BS6281:1 Devices without moving parts for the
prevention of contamination of water by
backflow. Specification for type A air gaps.
BS6282:1 Devices with moving parts for the prevention
of contamination of water by backflow.
Specification for check valves of nominal
size up to and including DN 54.
BS6283:4 Safety and control devices for use in hot
water systems. Specification for drop-tight
pressure reducing valves of nominal size up
to and including DN 50 for supply pressures
up to and including 12 bar.
8
BS6880 Code of practice for low temperature hot
water heating systems for output greater
than 45 kW.
BS6891 Installation of low pressure gas pipe work up
to 35 mm (R1¼") in domestic premises (2nd
family gas).
BS7074:1 Code of practice for domestic and hot water
supply
BS7671 Requirements for Electrical Installations IEE
Wiring Regulations seventeenth edition.
BS EN 303-7 Heating boilers. Gas-fired central heating
boilers equipped with a forced draught
burner of nominal heat output not
exceeding 1000 kW.
CISBE Guide Reference sections B7, B11 and
B13.
CP 342-2 Code of practice for centralized hot water
supply. Buildings other than individual
dwellings.
IGE/UP/2 Gas installation pipework and
compressors on industrial and
commercial premises
IGE/UP/10 Installation of gas appliances in industrial
and commercial premises, part 1: flued
appliances
EN12828 Central heating for domestic premises
Installation not exceeding 70 kW rated input
BS5440:1 Flues and ventilation for gas appliances of
rated heating not exceeding 70kW (net) :
Flues
BS5440:2 Flues and ventilation for gas appliances of
rated heating not exceeding 70kW (net) : Air
Supply
BS5449 Specification for forced circulation hot
water central heating systems for domestic
premises.
BS5546 Installation of gas hot water supplies for
domestic purposes
BS6798 Installation of gas fired boilers of rated input
up to 70kW (net)
BS7593 Treatment of water in domestic hot water
central heating systems
BS EN 483 Gas-fired central heating boilers. Type C
boilers of nominal heat input not
exceeding 70 kW.
BS EN 677 Gas-fired central heating boilers. Specific
requirements for condensing boilers with
a nominal heat input not exceeding
70 kW.
6 720 648 726 (2011/07)