McQuay IM 672-7
9
Mechanical Installation
Figure 13: Base Section Detail
10
Using appropriate safety equipment if necessary, remove
the fastener in each of the channel corners on the top
between the two parallel sections and discard.
11
Use the 2 x 2 holed splice plate with 2 x 5/16”-18 x 1”
screws and 2 x ¼” drill screws. The 2 x 5/16”-18 x 1”
screws will go into the frame channel holes and the 2 x ¼”
drill screws will go into the heatwheel frame channel as
show in
Figure 14
.
Figure 14: Frame Channel Detail
Internal Section-to-Section Mounting
If desired, shipping sections can be fastened together
internally. To fasten internally, run field-provided #10 sheet
metal screws or drill screws (4" long maximum) through the
interior frame channel of one unit into the splice joint of the
neighboring section.
The section-to-section splice joint is always provided on the
leaving air side of a shipping section and seals against the
frame channel on the entering-air side of the adjoining section.
Align the splice joint to seat into the mating gasket to provide
an air seal. If the splice joint was bent during shipping or
rigging, restore it to its original position (
Figure 16
).
For Vision
Plus
units, ensure that the D-gasket is attached to
the entering air side frame channel (
Figure 15
). If it has
dislodged during shipping, restore to original location.
Figure 15: D-Gasket Placement Detail (Vision Plus Units
only)
Figure 16: Internal Fastening
V i e w A
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 .
