Line Set Cover Installation Instructions

LEN
GROOVES
Flexible duct / LFJ adaptor Flexible duct / LWF wall flange LEN End fitting LG Gusset
LEN end fitting provides
critical support to the
lineset duct cover.
Without this fitting, the
duct cover can slide out
of place.
To adjust the opening to
suit lineset size, simply
snip the end fitting along
the desired groove, and
break off unwanted
sections.
The LJ coupler can also
be utilized at the duct
end for larger lineset fill.
LG Gussets are used
for horizontal line duct
installations, adding
additional support to
the duct.
(1) After installing the
line duct base plate
horizontally on a wall,
identify where the
gussets will be installed
on the duct.
(Recommendation -
install gussets every
16” center on stud or as
needed on the install)
(2) Screw gussets into
the top portion of the
Fortress Line duct as
shown. Screws not
provided.
INLINE COUPLING
(1) Secure fitting and duct bases to structure.
(2) Cut LF duct to length and place in LFJ adaptor.
(3) Secure LF duct with split cap and two
stainless steel screws.
(4) Secure LF duct into
adaptor by fitting
second part of cap.
WALL CONNECTION
(1) Seal and attach LWF wall flange to
structure.
(2) Place LF duct into LWF wall flange.
(3) Clamp LF duct with cap and two
stainless steel screws.
Specialty fitting installation instructions
Ducting (90" lengths) LD
Coupler LJ
Wall Inlet LW
Soffit Inlet LP
End Fitting LEN
90° Flat Ell LK
45° Flat Ell LKF
90° Inside Vertical Ell LCI
90° Outside Vertical Ell LCO
45° Inside Vertical Ell LCFI
45° Outside Vertical Ell LCFO
Tee LT
Reducer LDR
90° Sweep Ell LKS
Flexible Ell LF
Flexible Adaptor LFJ
Flexible Wall Flange LWF
45˚-90˚ Adjustable Outside Vertical Ell LCA
45˚-90˚ Adjustable Flat Ell LKA
Twistlock Lineset clips* LDC
Gussets* LG
RIBS
LFJ
LF
RIBS
LWF
LF
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®
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RectorSeal reserves the right to change specications without prior notice. ©2022 RectorSeal. All rights reserved. R50870-0522
LCI92 LCI122
LCFO92 LCFO122
LT92 LT122
LRD12292
LKS92 LKS122
LCI92 LCI122
LW92 LW22
LEN92 LEN122
LP92 LP122
LKF92 LKF22
LK92 LK122
LJ92 LJ122
LD92 LD122
LWF92 LWF122
LCA92 LCA22
LKA92
LKA122
LFJ92 LFJ122
LF92
LF122
LCO92 LCO122
Fitting List Available in WHITE, IVORY, BROWN and GRAY. Sizes 3 1/2” (92mm) or 4 1/2” (122mm).
DUCT BASE PLATE
SCREW
not provided
LG
*internal ducting accessories available in white only. For use on both 3½ & 4½ duct sizes.