Specifications

Installation & Servicing Instructions E-Range

12 Isolating the boiler

In some situations it may be that the entire boiler must be switched off. By switching

off the three keys with the lamps for central heating and pump program ( or ),

the boiler is switched off. Leave the 230V mains supply switched on so as the circulation

pump is activated once every 24 hours in order to prevent jamming.

In the event of frost danger it is advisable to drain the boiler and/or the

installation.

13 Commissioning

Work on the boiler must be carried out by a competent person, (Ref: Gas

Safety, Installation & Use Regulations ) using correctly calibrated instruments

with current test certification.

To commission the boiler the casing has to be removed.

Remove the lower part of the casing which covers the expansion vessel (if present)

forward. The casing is fixed by 4 quick release clamps and 5 screws (4x 1 clamp and 1

behind door). After removing the screws, unlock the clamps, now the casing can be

removed forward.

The boiler settings, such as burner pressure and adjustment of the air quantity are

unnecessary, due to the fact that the boiler operates with a so-called zero pressure

control. This means the correct gas quantity is controlled by the suction operation of the

fan. The fine adjustment which is carried out at the factory is one off, which means that

adjusting of these values is unnecessary. Only when replacing the gas valve, venturi and/

or the fan, does the zero pressure and the incorrect CO2 adjustment have to be checked

and, if necessary, adjusted to the correct value.

Always check the installation of all parts through which gas flows (using leak

detection spray)