Rinnai Q Premier QP85N Instructions D'installation Et D'entretien page 60

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Removing casing parts Q Premier
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WARNING
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DANGER
Pump commissioning
figure 31
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To commission the boiler parts of the casing has to be removed. (fi gure 30).
1. Open the smoke glass door;
2. Remove the 2 screws just below the upper edge;
3. Lift the front top part at the front;
4. Close the smoke glass door and pull the complete front panel at the top towards
you;
5. Remove the screw in the black frame around the control panel and take away the
black frame;
6. Pull down the bottom slide lock on the left side of the Control Tower;
7. Turn the Control Tower to the left;
Behind the casing you see the transparant air box.
Remove this airbox only in case for service or main-
tenance. See fi gure 30a.
8. Remove the transparant air box by unlocking the 6 snap
locks.
Store all removed parts during commissioning in a safe place.
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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 of the zero pressure, which is carried out at the factory
is once-only, which means that adjusting of this value is unnecessary. Only in case of
replacing of the gas valve, venturi and/or fan will the zero pressure adjustment have
to be checked and, if necessary, adjusted to the right value.
The venturi must always be checked and adjusted when it is out of range see
section 13.3 on O adjustment.
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Always check the installation of all parts through which gas fl ows (by bubble
test using leak-search spray).
Pump commissioning procedure should be followed before the boiler is fi red for the
fi rst time:
1. Remove the vent pump screw
2. Use a small fl at head screw driver to ensure the impeller spins freely.
3. When the impeller spins freely and water exits though the vent port the pump is
ready for operation.
4. Replace the vent screw
During the commissioning of the boiler the Rinnai Installation, Commissioning, and
Service card must be fi lled out.
OPEN
Removing casing figure 30a
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fi gure 30