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CONSOLE INSTALLATION, CAVITY TWIN SKIN FLUE
1. GENERAL
•
Depth of cavity wall must be at least 75 mm.
•
Select position of heater and locate studs. There
must be a minimum distance of 345 mm and a
maximum distance of 550 mm between studs.
•
Ensure ceiling and roof structure will not obstruct
flue.
2. CUT OPENING IN WALL
•
The wall box measures 330 mm x 100 mm but the
opening required is 335 mm x 160 mm. This is to
allow for ventilation around the wall box.
•
Failure to cut the correct sized hole may lead to
excessively high wall temperatures.
3. RUN GAS SUPPLY
•
The gas supply should be run before installing the
heater. The easiest way is to run the supply, leaving
the end of the copper flare as shown in the
diagrams, then attach the elbow / union to the
copper supply when the heater is installed.
•
Refer to an approved pipe sizing chart such as the
one in AS/NZS 5601 'Gas Installations' if in doubt
about size of supply pipe.
4. CUT AWAY THE TOP PLATE AND ANY NOGGINS BETWEEN STUDS
Fit flue housing into prepared opening:
•
Tabs should be fitted tightly against the plaster
board.
•
Drill through flanges at stud centres and fix to wall
with 4 screws.
•
The housing must be secured to the studs to allow
the outlet to protrude back into the cavity, giving the
twin skin flue a minimum clearance from plaster
board of 10 mm, excluding spacers.
5. LOWER TWIN SKIN FLUE DOWN CAVITY
•
Straighten tabs at bottom of twin skin flue assembly
and lower down wall cavity to housing.
•
Insert tabs in slots in housing then bend tabs to
secure flue to housing.
6. INSTALL FLUE SUPPORT
•
Drop top plate flue support over top of flue, position
centrally in space between studs and secure
support in position.
7. FIT SEALING PLATE
•
If flue protrudes more than 65 mm above top plate,
adaptor supports must be screwed to the flue, and
positioned so that when the sealing plate is fitted it
is 50 mm from the top of the flue.
Rinnai Australia
20
Ultima II Installation Manual
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