Rheem 27 Owner's Manual And Installation Instructions page 65

Note: Steps 10 to 15 can only be conducted whilst the water heater is off the wall.
10. Connect the Water Heater Flue Adapter (PN 295121) to the
water heater flue outlet.
Fit the end of the adapter down over the water heater
flue outlet as far as it will go.
Ensure there is a minimum 35 mm and maximum 42 mm
overlap, the rubber seal on the inner flue is well seated
and the adapter is fully engaged on the water heater flue
outlet.
Tighten the ring clamp provided with a screw driver.
Fit the 90° Bend (PN 295118) to the Water Heater Flue
11.
Adapter.
12. Fit the 300 mm Straight Length (PN 295126) of flue to the
90° Bend, if required.
Note: A total wall thickness of greater than 170 mm will
require a 300 mm Straight Length of flue.
Fit the Horizontal Terminal (PN 295116) to either the
13.
90° Bend or 300 mm Straight Length of flue.
14. Secure each flue component using the sheet metal screws
provided.
Fit a Trim Ring over the last section of flue.
15.
Rehang the water heater on the wall, carefully inserting the
16.
flue assembly through the wall penetration.
The water heater should be installed in its final location and
fixed in position before completing the flue installation.
Securely fasten the water heater to the wall at each of the
Wall Bracket mounting points.
Adjust the mounting brackets at the top and bottom of the
water heater if required. Bracket adjustment of up to 50 mm
can be made and may assist with flue fitment and alignment.
17. Check the end of the outer skin of the flue terminal extends a
minimum of 75 mm from the face of the external wall.
Apply an adequate bead of sealant around the flue assembly and exterior wall of the building, using a
18.
general purpose silicone sealant suitable for outdoor application.
Failure to properly seal the flue penetration through the wall will result in long term damage due to
weather conditions.
19. Apply an adequate bead of sealant on the rear face of a Trim Ring, using a general purpose silicone
sealant suitable for outdoor application.
Fit the Trim Ring over the flue terminal and press against the wall.
Apply an adequate bead of sealant around the flue assembly and interior wall of the building and on the
20.
rear face of the Trim Ring, using a general purpose silicone sealant suitable for indoor application.
Press the Trim Ring against the wall.
Upon completion of the secondary flue installation, remove the warning label adhered to the top left
21.
hand corner of the water heater's front panel.
Refer to "Connections – Electrical"
for the commissioning details of the water heater.
on page 74 electrical connection details and
65
FLUEING
flue components required
"Commissioning" on page 86