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2
INSTRUCTIONS FOR USE
2.1
Warnings
Biasi UK Ltd support the Benchmark initia-
tive. The Benchmark Checklist is located
at the back of this manual and should be
completed by the Installing/Commission-
ing Engineer and handed over to the User
for future reference by other visiting Engi-
neers.
Also included is the Service Interval Re-
cord card that should be completed by the
Service Engineer following the annual ser-
vice maintenance of the boiler and system.
All Gas Safe Registered Installers carry a
Gas Safe ID card, and have a registration
number. Both should be recorded in your
Benchmark Checklist. You can check your
Installer is registered by calling 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 responsible
service engineer before lighting up the boiler.
The tests are described in the installation in-
structions in section 7 commissioning.
Ensure that the c.h. circuit is regularly filled
with water (even if the boiler is only used for
d.h.w. supply) checking that the pressure in-
dicated on the bottom part of the display Fig.
2.2.
In the case of incorrect pressure the value is
visualised with a
flashing symbol (Fig. 2.2).
high pressure: > 2.8 bar ON, 2.6 bar OFF;
intermediate pressure:
0.15 < P < Pon rising
0.15 < P < (Pon-0.2) decreasing;
critical pressure (too low): 0.00 < P < 0.15
bar
- 14 -
INSTRUCTIONS FOR USE
If you are in any doubt regarding this pro-
cedure you are advised to contact your In-
staller 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 instructions
given in section "Extinguishing" to page 23.
2.2
Refilling procedure
• Isolate the boiler from the electrical supply
at the fused spur. Reconnect the filling loop
as demonstrated in Fig. 2.1.
Supply pipe
(cold water
inlet)
C.h. return pipe
Fig. 2.1
• Open the valves of the filling loop and watch
the display until it reaches normal filling
pressure as shown in Fig. 2.2.
Fig. 2.2
Control
valve
Double
check valve
Temporary
connection
Control valve
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