Rinnai RHFE-431WTA Cautions, How to connect air intake hose, Maximum extendable length

2. How to connect air intake hose

Air intake hose	Air intake hose
Hose joint
Screw in counterclockwise	Air intake elbow
Main unit air intake hose

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.

3. Affixing the air intake hose and exhaust pipe

Screw A	Pipe clamp	Screw A	Pipe clamp
Air intake	Air intake
	hose		Exhaust pipe
hose
Wall	Exhaust pipe Wall		Nut
Screw B	Wall fixture

NOTE: Maintain 1" clearance between exhaust pipe and combustible materials (0" clearance between exhaust pipe and non-combustible materials).

・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.

■CAUTIONS

1.Maximum extendable length

FOR BEST ROOM AIR HUMIDITY, KEEP WATER IN THE HUMIDIFIER TRAY.

2. To prevent water condensation

Condensed water may accumulate

here, and cause a blockage preventing combustion.

・13 feet, 2 bends

・The bend where the hose and pipes leave the body is not counted.

・The air intake hose should run along the exhaust pipe.

CAUTION

Never allow the exhaust pipe to sag, as condensed water may accumulate and cause incomplete combustion.

– 59 –