Rinnai ENERGYSAVER EX08C Installation Fundamentals page 72

Vent Extension Installation Guidelines
CONNECTING THE AIR INTAKE EXTENSION
1. The air intake
extension is
connected
between the air
connection at the
rear of the heater
and the air intake
port on the flue
manifold.
2. Cut the air intake
extension to the
desired length.
The lengths of the
air intake hose
and the exhaust
pipe must be the
same in order for
the appliance to
operate properly.
Deburr all rough
NOTE: Never cut the hose
edges.
attached to the appliance!
3. Remove the air
intake elbow from
the furnace intake
hose (reverse
threaded). Move
this elbow to the
end of the air
intake extension.
4. Connect the air
intake hoses by
screwing (reverse
thread) the hose
joint half of its
length into the air
intake hose and
the screwing
another air intake
hose into the hose
joint.
Practice good safety habits when
CAUTION
using sharp tools!
Air
intake
elbow
Air
Hose
intake
Joint
hoses
72