Rheem 627 series Owner's Manual And Installation Instructions page 67

Note: Steps 10 to 14 can only be conducted whilst the water heater is off the wall.
Connect the 90° Bend (PN 295118) to the water heater flue
10.
outlet so it is orientated behind the water heater.
Fit the end of the bend 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 bend is fully engaged on the water heater flue
outlet.
Secure the bend to the outlet with the screws provided.

Fit the 300 mm Straight Length (PN 295126) of flue to the
11.
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
12.
90° Bend or 300 mm Straight Length of flue.
13. Secure each flue component using the sheet metal screws
provided.
Fit a Trim Ring over the last section of flue.
14.
15. Rehang the water heater on the wall, carefully inserting the
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 30 mm
can be made and may assist with flue fitment and alignment.
Check the end of the outer skin of the flue terminal extends a
16.
minimum of 75 mm from the face of the external wall.
Apply an adequate bead of sealant around the flue assembly
17.
and exterior wall of the building, using a 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.
18. 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.
19. Apply an adequate bead of sealant around the flue assembly and interior wall of the building and on the
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
20.
hand corner of the water heater‟s front panel.
"Connections – Electrical"
Refer to
for the commissioning details of the water heater.
on page 76 electrical connection details and
67
FLUEING
flue components required
"Commissioning"
on page 89