Rinnai RHFE-431FA - Manual (Page 55)

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1. How to connect exhaust pipes
2. How to connect air intake hose
To connect the exhaust pipes, fit the male end into the female end and clamp with pipe stopper A to prevent
slipping. The exhaust pipe can be telescoped to the required length; do not cut it.
Screw hose joint half of its length onto the air intake hose, then screw another air intake hose into the joint.
The hose can be cut to the required length.
IMPORTANT: The PVC air line is longer than the exhaust line and may need to be cut to size. Be sure,
however, to thoroughly deburr all rough edges.
Set the air intake hose and exhaust pipe into the pipe
clamps, screw the clamp onto the wall fixture, and affix
to the wall with screw B.
The air intake hose and exhaust pipe can also be
screwed onto the wall using the pipe clamp and
the nut.
With the exhaust pipes inserted into the ends, bend
the bent pipe to the angle reguired for installation.
This part is mainly used for curves and for connection
to vent terminal.
3. Affixing the air intake hose and exhaust pipe 4. How to use the bent pipe
Female end
Exhaust pipe
Pipe stopper B
Male end
Pipe stopper B
Pipe stopper A
Female end Male end
Exhaust pipe
Fit inside
Pipe stopper A
Fit inside
Connect bent pipe
Female end Male end
Main unit air intake hose
Air intake hose
Hose joint
Screw in counterclockwise
Air intake hose
Air intake elbow
Screw B
Wall
Air intake
hose
Screw A Pipe clamp
Exhaust pipe
Wall fixture
Wall
Air intake
hose
Screw A
Nut
Pipe clamp
Exhaust pipe
Adjust the angle
NOTE: Maintain 1" clearance between exhaust pipe
and combustible materials (0" clearance between
exhaust pipe and non-combustible materials).