Instructions For Use; Warnings; Refilling Procedure - Biasi ADVANCE 25S User Manual

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.
If the pressure reading on the pressure gauge
is below that shown in Fig. 2.2, then the sys-
tem will require topping up. A filling loop is
normally provided by the Installer for this pur-
pose.
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
- 12 -
INSTRUCTIONS FOR USE
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 "Switching off" on page 15.
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 on the filling loop and, at
the same time, check the heating circuit
pressure on the pressure gauge. The cor-
rect pressure value when the system is cold
must be within the first green bar on the
pressure gauge quadrant (Fig. 2.2).
Fig. 2.2
Once done, close the valves on the filling loop.
If you experience any difficulty with the op-
eration of the boiler, switch off the boiler
immediately at the fused spur isolation
switch and contact your Installer or an ap-
Control
valve
Double
check valve
Temporary
connection
Control valve