Rinnai RHFE-556FA Owner's Operation And Installation Manual page 60

• TYPES COMPATIBLE WITH EXTENSION SET
RHFE-431 FA II /556FAlFTRA •
INSTALLING AN EXTENSION KIT
Installing an extension kit requires construction of an air line and the exhaust line. The air line is connected
between the Air Supply Elbow at the rear of the heater and the air inlet port on the Flue pipe.
Similarly, the exhaust line is connected between the joint pipe at the rear of the heater, and the exhaust
port on the Flue pipe.
Caution: Check to see there is no debris inpipe or hose.
• HOW TO INSTALL
MODEL:RHFE-431 FA II /556FAlFTRA
Example:Using 2 sets of extension set and 1 bent set.
" r
Pipe stopper A
f
Pipe stopper A
-----------~
Pipe stopper B
:
~
Bent elbow
@ :
~~o-P;P'''Oppe'A
HOSejOint~
Air intake elbow
(comes with main unit)
cr-
Pipe stopper B
Vent manifold
(comes with main unit)
Exhaust pipe
HOSejOint~
Air intake hose
Example:Using 80 inches slide pipe set.
Vent manifold :- - - - - - - - - -:
(comes with main U . i t ) - - - : :
, @ :
,
,
Air intake elbow: :
(comes with main unit) '------~Pipe stopper A
Pipe clamp-""""L.L.L.J
o-Pipe stopper B
- Exhaust pipe
Pipe c1amp---uo
~
l>-Pipe stopper A
Pipe clamp--cDO
I-- 40 inch straight pipe
Pipe c1amp---ITD
Hose
jOint~
l>-Pipe stopper A
Air intake hose-
-==~t1:::!b:}-Pipe
stopper B
-58-