Rinnai EX11C Installation Manual download pdf (Page 21)

Rinnai Corporation EX08C, EX11C Manual 21

Flue Manifold Installation

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 outer plastic laminate

(with a utility knife or similar) and remove the

extension. The metal should not be cut.

• The flue manifold must exhaust to the outside. Do

not exhaust into other rooms.

• The flue manifold is not designed to be positioned

under floors or below the heater.

• The termination cannot be vertical.

• This appliance can only be used with one of the

five types of Rinnai flue kits. The flue kits and their

dimensions are listed in the Specifications section.

• Refer to the Flue Terminal Clearances section.

3 screws

sleeve should

extend 3/16 -

3/8 in (5-10

mm)

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.

Inside Connection

Sleeve

Terminal

Remove extension

if necessary

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Rinnai EX11C Installation Manual Page 21

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