Rinnai Q130SN - Manuel (Page 55)

Installation & Servicing Instructions Rinnai Q-Series
55
13 Commissioning
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. The casing is locked with
a screw behind the door on the front (figure 24) 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 figure 24.
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 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 O
2
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.
! DANGER
Removing casing figure 24
NOTICE
i
NOTICE
i
2
3
1
OPEN
2
3
1