User manual

Installation & Servicing Instructions Rinnai Q-Series

13 Commissioning

Work on the boiler must be carried out by a competent person, using

correctly calibrated instruments with current test certiﬁ cation.

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 ﬁ red, 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. The casing is locked with

a screw behind the door on the front (ﬁ gure 19) and the top of the casing is hooked

behind a locking edge. After removing this screw the casing must be lifted at the

bottom by which means it is released from the locking edge. Then the casing can be

removed forward.

Behind the casing you see the transparant air box.

Remove this airbox only in case for service or maintance. See ﬁ gure 19.

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

unnecessary in most cases, 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 ﬁ ne 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 O

adjustment has

to be checked and, if necessary, adjusted at the right value.

Always check the installation of all parts through which gas ﬂ ows (by bubble

test using leak-search spray).

During the commissioning of the boiler the Rinnai Installation, Commissioning, and

Service card must be ﬁ lled out.

DANGER

Removing casing  gure 19

OPEN

NOTICE