6
McQuay IM 777-3
Installation Guidelines
Figure 6: Remove Vestibule Lifting Bracket
Figure 7: Fasten Bottom of Section
d
A length of “D” gasket is attached to each section
(Figure 7). This gasket MUST be installed to the unit
base section.
e
Handle units with curb-ready bases and vestibules so the
lifting bracket can be removed after the unit is placed on
the curbing.
– Remove the lifting bracket that projects inward over
the curbing. Save the self tapping screws.
– When the adjacent section is placed in position, use
self tapping screw to secure the bases together.
Figure 8: Internal Fastening
4
Check that the sealant is compressed between the mating
channels when the unit sections are joined. Touch up any
places where gaps are noted.
5
After sections are seated tightly together, slip the splice cap
over the top panel flanges. Bend the ends of the splice cap
down to secure in place.
6
Assemble the small splice plate at the top rail to secure the
sections together at the top. Use 5/16" bolts. See Figure 9
.
Figure 9: Splice Cap and Splice Plate
IMPORTANT
The gasket is to be installed in an arc shape with the ends
lower than the center, so that any moisture that may reach the
gasket will be drained to the outside of the unit.
R e m o v a b l e
L i f t i n g B r a c k e t
3/8" x 1" Bolt and Nut
“D”
Gasket
A
S p l i c e C o l l a r
m u s t b e a l i g n e d
t o s e a l t o g a s k e t .
5 / 1 6 - 1 8 N u t
S p l i c e
P l a t e
5 / 1 6 - 1 8 B o l t
S l i d e S p l i c e C a p o n
a n d b e n d e n d s d o w n
