Codes Of Practice - Potterton Powermax HE 85 Litre Installation And Servicing Instructions

Codes of Practice

The appliance is suitable only for installation in GB and IE
and should be installed in accordance with the rules in
force.
In GB, the installation must be carried out by a CORGI
Registered Installer. It must be carried out in accordance
with the relevant requirements of the:
• Gas Safety (Installation & Use) Regulations.
• The appropriate Building Regulations either The
Building Regulations, The Building Regulations
(Scotland), Building Regulations (Northern Ireland).
• The Water Fittings Regulations or Water Byelaws in
Scotland.
• The Current I.E.E. Wiring Regulations.
Where no specific instructions are given, reference
should be made to the relevant British Standard Codes of
Practice.
In IE, the installation must be carried out by a Competent
Person and installed in accordance with the current
edition of I.S. 813 "Domestic Gas Installations", the
current Building Regulations and reference should be
made to the current ETCI rules for electrical installation.
Combustion
Analyser
Test Point
Heat Exchanger
3 Way
Diverter Valve
Condensate
Trap
Gas Cock
D.H.W. Sensor
CH
Flow
Publication No. 5106226
Schematic Diagram
Flue
Fan
A B
Automatic Bypass
Hot Water
Cylinder
CH Gas
Return
In GB the following Codes of Practice apply:
Standard
BS6891
BS5440 Pt.1
BS5440 Pt.2
BS5546
BS5449
BS6798
In IE:
I.S. 813 Domestic Gas Installations.
The following BS standards give valuable additional information:
BS6891
BS5546
BS5449
Return Sensor
Air
Isolation Valve
Primary Expansion Vessel
Flow Sensor
Automatic Air Vent
Pump
Gas
Valve
Primary
Relief
Valve
T.P.R.V. Isolation
Valve
Tundish
Double
Check
Valve
Filling Loop
DHW
Scope
Specification for low pressure gas pipework
in domestic premises.
Specification for installation of flues.
Specification for installation of ventilation for
gas appliances (except that compartment
ventilation is amended in section 8 of these
instructions).
Specification for installation of gas hot water
supplies.
Specification for forced circulation hot water
central heating systems.
Specification for installation of gas fired hot
water boilers of rated input not exceeding
70kW.
Specification for low pressure gas pipework
in domestic premises.
Specification for installation of gas hot water
supplies.
Specification for forced circulation hot water
central heating systems.
Secondary
Expansion
Vessel
Secondary
Relief
Valve
Stopcock &
Checkvalve
Tundish
Inlet
PRV & Strainer
Control
Group
COLD
(balanced pressure to shower)
Cold Main
Fig. 4
7
Introduction