Rinnai E110CN, E110CP, E75CN, E75CP user manual Commissioning, Notice Notice Danger

12 Commissioning

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NOTICE

NOTICE

DANGER

Work on the boiler must be carried out by a competent person, using correctly calibrated instruments with current test certification.

These installation instructions are intended for professional installers, who have the necessary knowledge and are approved for working on heating and gas systems.

Before the boiler is fired, ensure that the boiler and the system are well de-aerated and free of air. Purge the gas line between the gas meter and the boiler.

The boiler and its individual shut off valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 PSI (3.5kPa).

To commission the boiler the casing has to be removed.

-remove the 4 screws A,B,C and D in the quick releases of the casing (figure 17);

-remove the screw E behind the door on the front of the casing (figure 17);

-remove it towards the front.

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 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 once-only, which means that adjusting of these values is unnecessary. Only in case of replacing of the gas valve, venturi and/or fan, the zero pressure and the incorrect O2 adjustment has to be checked and, if necessary, adjusted at the right value.

Always check the installation of all parts through which gas flows (by bubble test using leak-search spray)

During the commissioning of the boiler the Rinnai Installation, Commissioning, and Service card must be filled out.

Installation & Servicing Instructions Rinnai E-Series

Removing casing figure 17

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