035-16650-001-A-0202
2
Unitary Products Group
For rear air discharge on a vertical unit, assembly and mount-
ing of plenum shall be the same as outlined above except the
plenum must be positioned with the grille panel overhanging
the rear of the unit.
For horizontal air discharge on a horizontal unit, assemble
the panels as shown in Figure 2, using the No. 10 x 1-1/4"
tapping screws. Attach the support angles shown with the
No. 10 X 1/2" tapping screws.
Position the plenum over the supply air opening and secure
to the unit per the same procedure as outlined above for a
vertical installation.
SUPPLY AIR PLENUM ACCESSORY MODEL 1SP0452
This accessory consists of 6 panels and all the screws neces-
sary for assembling the plenum and for securing it to the unit.
For front air discharge on a vertical unit, assemble the panels
as shown in Figure 3 using the No. 10 x 1" tapping screws.
Position the plenum on top of the unit. Remove one of the
end panels from the plenum for access to the flanges inside.
Drill 5/32" holes through the unit cabinet using the holes in
the plenum flanges as templates. Secure the plenum to the
unit with the No. 10 x 1/2" tapping screws.
NOTE: The other end panel may be removed for easy
access to the flanges on the opposite end of
the plenum.
For rear air discharge on a vertical unit, rotate the blower sec-
tion 180° (end to end) before installing the plenum as outlined
above.
For horizontal air discharge on a horizontal unit, assemble
the panels as shown in Figure 4 using the No. 10 x 1" tapping
screws.
Position the plenum over the supply air opening and secure
to unit per the same procedure as outlined above for a verti-
cal installation.
FIGURE 1 :
PLENUM ACCESSORY MODELS 1SP0450
& 1SP0451 (VERTICAL UNIT WITH FRONT
AND REAR AIR DISCHARGE)
FIGURE 2 :
PLENUM ACCESSORY MODELS 1SP0450
&1SP0451 (HORIZONTAL UNIT WITH
HORIZONTAL AIR DISCHARGE)
1/2" Ref.
TOP PANEL
REAR PANEL
Mounting
Flange
(Part of
Rear Panel)
GRILLE PANEL
BASIC UNIT
SUPPORT
ANGLE
(2) END
PANELS
(2) END PANELS
TOP PANEL
(Top for Vertical Unit)
GRILLE PANEL
BOTTOM PANEL
(Rear for Vertical Unit)
BASIC
UNIT
SUPPORT ANGLE
1/2"
Ref.
MOUNTING FLANGE
(Part of Bottom Panel)
FIGURE 3 :
PLENUM ACCESSORY MODELS 1SP0452
(VERTICAL UNIT WITH FRONT OR REAR
AIR DISCHARGE)
FIGURE 4 :
PLENUM ACCESSORY MODEL 1SP0452
(HORIZONTAL UNIT WITH HORIZONTAL
AIR DISCHARGE)
NARROW
TOP PANEL
REAR PANEL
(2) END PANELS
BASIC UNIT
GRILLE PANEL
WIDE TOP PANEL
TOP PANEL
(Rear for
Vertical unit)
BASIC UNIT
(2) END PANELS
BOTTOM PANEL
(Wide Top Panel
for Vertical Unit)
GRILLE PANEL
FRONT PANEL
(Narrow Top Panel
for Vertical Unit)
