Flue Manifold Installation - Rinnai ES08 Owner's Operation And Installation Manual

Flue Manifold Installation

• The flue manifold must exhaust to the outside. Do
not exhaust into other rooms.
• The flue is not designed to be positioned under
floors or below the heater.
1. Disassemble the flue manifold
The flue consists of 3 parts:
• sleeve
• inside connection
• outside terminal
Disassemble the flue manifold by first pulling
out the inside connection. To remove the
outer terminal pull and release the two
internal ties and then pull out the outer
terminal.
Clearance to combustibles for the sleeve and
flanges is zero inches.
2. Adjust the sleeve length
Measure wall thickness through previously
drilled 3 1/8 inch (80 mm) hole.
The end of the sleeve should protrude 3/16 -
3/8 inch (5-10 mm) from the outside wall.
The sleeve is threaded for adjustment. Adjust
the sleeve length to wall thickness plus 3/16 -
3/8 inch (5-10 mm).
NOTE: Do not extend beyond the red line.
For other than the "S" type flue manifold, if a
shorter length is necessary an extension can
be removed. Cut the plastic and remove the
extension.
3. Attach the sleeve
Attach to the inside wall using 3 screws
arranging the flange so that the marking
"TOP" is at the top.
The flange is offset 2° to allow the
condensate drain to the outside.
20
• This appliance can only be used with one of the five
types of Rinnai flue kits. The flue kits and their di-
mensions are listed in the Specifications section.
• Refer to the Flue Terminal Clearances section.
Inside Connection
3 screws
Rinnai Corporation ES08 Manual
Terminal
Sleeve
Remove extension
if necessary
sleeve should extend
3/16 - 3/8 in (5-10 mm)