Introduction - Potterton Puma 100 Installation & Service Instructions Manual

Introduction - Page 4
Samples of the Puma 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, 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.
The Potterton Puma range of boilers are fully automatic, wall
mounted, fan assisted, room sealed combination boilers,
designed to operate on Natural Gas only. The range of consists
of permanent pilot and electronic versions in both 24 kW and 29
kW (100,000Btu/h) outputs.
The 100 and 100e models adjust automatically to provide
central heating outputs between 29 kW (98,980 Btu/h) and 11.5
kW (39,235 Btu/h) to suit the system requirements.
Domestic hot water has priority over the central heating system
and is generated instantaneously within the appliance.
The combination boilers are designed for use with fully pumped
sealed system only. This has the advantage that header tanks
and hot water storage cylinders are not required.
The range of horizontal and vertical flue systems with small
terminals simplify siting and installation.
They are supplied fully tested and assembled with a circulating
pump, diverter valve, pressure gauge, pressure relief valve, and
expansion vessels.
The appliances have two completely separate heating systems
embedded into a copper heat exchanger. Both systems are
completely independent.
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. 5.
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.
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.
At the minimum hot water draw-off rate the maximum
temperature is limited to 65°C by the modulating gas control.
The combination boiler has a white front case which can be
removed for servicing.
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.