Instructions For Use; Warnings; Refilling Procedure - Biasi M300V.2025 SM User Manual And Installation Instructions

2

INSTRUCTIONS FOR USE

2.1

Warnings

Biasi UK Ltd support the Benchmark
initiative. The Benchmark Checklist 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 Re-
cord card that should be completed by
the Service Engineer following the an-
nual 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 Checklist. 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 filled
with water (even if the boiler is only used for
D.H.W. supply).
If the pressure reading on the pressure
gauge is below that shown in Fig. 2.2, then
the system will require topping up. A filling
loop is normally provided by the Installer for
this purpose.
If you are in any doubt regarding this
procedure you are advised to contact
your Installer or an Approved Engineer.
This appliance is provided with a built in
- 14 -
INSTRUCTIONS FOR USE
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 "Switching off" on
page 18.
2.2

Refilling procedure

• Isolate the boiler from the electrical sup-
ply 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
• Press keys 15 and 16 at the same time
to access the "INFO" menu (information).
The index value "J00" will be shown on
the display in alternation with the pressure
value "13" (1.3 bar). The number indicat-
ing the pressure is displayed without a
decimal point, and the letter indicates the
unit of measure (bar) (Fig. 2.2).
Control
valve
Double
check valve
Temporary
connection
Control valve