bsg Savio plus combi, User Manual And Instructions

Page: 11 / 20

SAVIO PLUS COMBI USER MANUAL 11
Instructions For Use 5.
Warnings: 5.1
In order to guarantee safety and correct operation, it is essential that all the tests are carried •
out by a competent and responsible licensed service person before lighting up the boiler.
The tests are described in the installation, operation and service instructions manual in Sec-
•
tion 15 Commissioning.
Ensure that the Central Heating circuit is regularly
fi lled with water checking that the pres- •
sure indicated on the temperature and pressure gauge (4 on fi gure 3.2) is not lower than 1
bar (14.5 psi) as shown on fi gure 5.1.
If the pressure reading on the pressure gauge is below 1 bar (14.5 psi), then the system will •
require fi lling. An automatic fi lling valve is normally provided by the installer for this purpose.
If you are in any doubt regarding this procedure you are advised to contact your In- •
staller or an Approved Service Person.
This appliance is provided with a built in anti-freeze system that operates the boiler when •
the temperature is below 41 °F
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 circuit breaker or close the gas inlet cock.
When you expect not to use the boiler for a long period follow the instructions given in sec- •
tion 5.6 on page 14.
Refi lling procedure: 5.2
Isolate the boiler from the electrical sup- •
ply at the circuit breaker.
The boiler should have been installed with
•
an automatic fi ll valve, external to the unit.
Open the cold water supply to the auto-
matic
fi ll valve.
The pressure should be 1 – 1,5 bar (14.5 •
– 22 psi).
The automatic
fi ll valve should maintain •
this pressure, but not exceed it.
Figure 5.1
0 4
2
3
1
Air introduced into the boiler during this fi lling process will vent through the automatic air purger
fi tted to the boiler. You may also fi nd it necessary to vent air from your heating circuit using the
installed vents, however be aware that excessive venting will cause the pressure in the system
to drop. Always ensure that the pressure gauge is set at the required pressure.