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3. Instructions for Use
•
In order to guaranty 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 Section 11 Start Up and
Check Out.
•
Ensure that the Central Heating circuit is regularly filled with water checking that the pressure indicated on the
pressure gauge is not lower than 1 bar (14.5 psi) as shown on Figure 3.1.
•
If the pressure reading on the pressure gauge is below 1 bar (14.5 psi), then the system will require filling. An
automatic filling 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 Installer or an Approved
Service Person.
•
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 section 3.4 on page 11.
•
Isolate the boiler from the electrical supply at the circuit breaker.
•
The boiler should have been installed with an automatic fill valve, external to the unit. Open the cold water supply
to the automatic fill valve.
•
The pressure should be 1 – 1.5 bar (14.5 – 22 psi).
•
The automatic fill valve should maintain this pressure, but not exceed it.
Air introduced into the boiler during this filling process will vent through the automatic air purger fitted to the boiler.
You may also find 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.
10
KAPPA R USER MANUAL
3.1 Warnings:
3.2 Refilling Procedure:
Figure 3.1 (Pressure gauge)
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