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Rinnai Corporation RHFE-750ETRA 21
2. Assemble and Adjust the Sleeve Length
Measure wall thickness through previously drilled
3 1/2 inch (90 mm) hole.
The end of the sleeve should protrude 3/16 - 3/8
inch (5-10 mm) from the outside wall.
In the FOT-203 (Vent Kit A) there are 4 parts
provided with which to assemble the sleeve. Use
the table to determine which pieces to assemble.
In both kits, two parts are threaded for additional
adjustment.
Adjust the sleeve length to wall thickness plus
3/16 - 3/8 inch (5-10 mm).
Sleeve Parts
a
b
c
For wall thickness plus 3/16 - 3/8 in (5-10 mm) Assemble these parts (“A” Vent Kit)
4 1/3 - 6 1/8 in (110 - 155 mm)
6 1/8 - 7 3/4 in (155 - 195 mm)
7 3/4 - 9 1/2 in (195 - 240 mm)
a
b
+
a
b
c
++
a
b
c
++
c
+
Venting
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 to
drain to the outside.
4. Install the Terminal
Check that the terminal seal is in place. For
weatherboard or vinyl siding, add the second seal
next to the terminal seal to compensate for the
angle.
From the outside insert the terminal into the
sleeve with the marking “TOP” at the top. The left
hand side locking tie should be marked “LEFT”.
3 screws
sleeve should extend
3/16 - 3/8 in (5-10 mm)
Locking tie
Terminal
Terminal seal