Potterton Combi 80, Installation & Service Instructions Manual

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Introduction Page 3
SAFETY, PERFORMANCE & QUALITY
This appliance has been assessed by a Government
appointed Notified Body and shown to meet the '‘ssential
Requirements’ of the European Gas Appliance Directive
The Directive lays down requirements for the safety and
efficiency of the appliance, together with its design,
construction, and use of materials.
It also requires the production process to be covered by an
approved and monitored system of quality assurance.
About the Boiler
•
The Combi 80 adjusts automatically to provide central
heating outputs between 24 kW (81,880 Btu/h) and 10.4
kW (35,480 Btu/h) to suit the system requirements.
•
The boiler is designed for use with fully pumped sealed
system only.
•
It is supplied fully tested and assembled with a
circulating pump, diverter valve, pressure gauge,
pressure relief valve, and expansion vessels.
IMPORTANT
This appliance has been certified for safety. It is therefore
important that no external control device (e.g. flue dampers,
economisers, etc.) be directly connected to the appliance
unless covered by these Installation & Service Instructions or
otherwise recommended in writing.
Any direct conenction of a control device not approved by
Potterton Limited, could invalidate the CE Certification and
normal appliance warranty.
•
The appliance has two completely separate heating
systems embedded into a copper heat exchanger. Both
systems are completely independent.
Central Heating : A central heating switch controls the
choice of service between central heating and hot water
only. The boiler water flow system is shown in Fig. 1.
With the central heating switch set to 'Off' and the boiler
switch set to 'On', the combination boiler fires only when
hot water is drawn off.
Codes of Practice
•
The boiler must be installed in accordance with: The
Gas Safety (Installation & Use) Regulations 1998 and
the current issue of:-
The Building Regulations, Building Standards (Scotland)
Regulations, Local Building Regulations, Model & Local
Water Undertaking Bye Laws. I.E.E Regulations, Health
and Safety Document No.635. (The Electricity at Work
Regulations 1989), BS. 6891, BS. 6798, BS. 5449, BS.
5546, BS. 5440:1, BS. 5440:2, BS 7593 & BG. DM2.
•
Samples of the Combi 80 combination boiler have been
examined by Gastec, a Netherlands Notified Body. The
range is certified to comply with the essential
requirements of the Efficiency Directive 92/42/EEC, the
Gas Appliance Directive 90/396/EEC, the Low Voltage
Directive 72/23/EEC and shows compliance with the
Electro Magnetic Compatibility Directive 89/336/EEC
and are therefore permitted to carry the CE Mark.
•
The appliance has been tested and approved by the
WRc as meeting the requirements of G3 and L of the
Building regulations and water Bylaws Scheme -
Approved Products.
With the central heating switch set to 'Timed' the boiler
will operate the central heating for the time periods set
on the optional internal or externally mounted
timeclocks. If 'Constant' is selected the boiler will
operate continuously.
The central heating is supplied at a pre-set temperature
determined by the central heating thermostat setting.
If domestic hot water is drawn off while the central
heating is running the combination boiler will
automatically transfer the boiler heat output to the
domestic hot water supply.
Domestic Hot Water : Domestic hot water has priority
over the central heating system and is generated
instantaneously within the appliance.
At the minimum hot water draw-off rate the maximum
temperature is limited to 70 °C by the modulating gas
control.
•
Data plates are positioned on the front of the air box
door and a boiler serial badge is on the underside of the
air box. A duplicate serial badge is positioned on the
underside of the case base for customer reference.