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2
INSTRUCTIONS FOR USE
2.1
Warnings
Biasi UK Ltd support the Benchmark
initiative. The Benchmark Log Book is
located at the back of this manual and
should be completed by the Installing/
Commissioning Engineer and handed
over to the User for future reference by
other visiting Engineers.
Also included is the Service Interval
Record card that should be completed
by the Service Engineer following the
annual service maintenance of the boiler
and system.
All Gas Safe Registered Installers carry
a Gas Safe ID card, and have a registra-
tion number. Both should be recorded
in your Benchmark Log Book. You can
check your Installer is registered by call-
ing Gas Safe direct on 0800 408 5500,
or go on line at www.GasSafeRegister.
co.uk.
In order to guarantee safety and correct op-
eration, it is essential that all the tests are
carried out by a competent and responsi-
ble service engineer before lighting up the
boiler.
The tests are described in the installation
instructions in section 7 commissioning.
Ensure that the c.h. circuit is regularly fi lled
with water (even if the boiler is only used for
d.h.w. supply) checking that the pressure in-
dicated on pressure gauge is not lower than
that shown in Fig. 2.2 .
If the pressure reading on the pressure
gauge is below that shown in Fig. 2.2 , then
the system will require topping up. A fi lling
loop is normally provided by the Installer for
this purpose.
If you are in any doubt regarding this
- 12 -
INSTRUCTIONS FOR USE
procedure you are advised to contact
your Installer or an Approved Engineer.
This appliance is provided with a built in
anti-freeze system that operates the boiler
when the temperature is below 5 °C.
Therefore, when the boiler is not lit or used
in cold weather, with consequent risk of
freezing do not switch off the boiler at the
fused spur isolation switch or close the gas
inlet cock.
When you do not expect to use the boiler
for a long period and the boiler is not to be
used for frost protection then follow the in-
structions given in section "Extinguishing"
to page 14 .
2.2
Refi lling procedure
• Isolate the boiler from the electrical sup-
ply at the fused spur. Reconnect the fi lling
loop as demonstrated in Fig. 2.1 .
Supply pipe
(cold water
inlet)
C.h. return pipe
Fig. 2.1
• Open the valves of the fi lling loop and
watch the gauge until it reaches normal
fi lling pressure as shown in Fig. 2.2 .
Fig. 2.2
Control
valve
Double
check valve
Temporary
connection
Control valve
Normal
fi lling
pressure
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