First Co SPXA (cooling with electric heat) User Manual
Page 2
5. The front edge of the sleeve should protrude
1/4 to 1/2 from the finished outside surface
of the wall (Fig. 3).
6. Align the sleeve with the wall so that the
bottom pan is angled 1/2 bubble toward the
outside of the building (Fig. 3).
7. Fasten the sleeve to the wall studs at 3
locations on each side. See
Fig. 2
for
approximate locations. Note: It is
recommended to use fasteners with seal
washers to minimize the possibility of water
leakage into the wall.
8. Connect drain plumbing to the 3/4 pipe
nipple. Note: Drain line may need to be
trapped to prevent sewer gas from entering
the structure. Caution: Damage due to
water leakage will occur if the primary
drain line and secondary drain
passages are obstructed or clogged.
Therefore it is necessary to perform
periodic maintenance to ensure that
drains remain open.
9. Place a bead of silicone sealant or other
high grade non-hardening sealing
compound approved for exterior use to seal
the gap between the wall sleeve and both
the inside and outside wall surfaces (Fig.
3). Sealant should also be applied around
the heads of the fasteners used to secure
the sleeve.
Grille
SPU
Outside
Approximate
Fastener Locations
Wall Sleeve
Disconnect
Figure 2
Return Air
SPU Unit
To Condensate
Drain
6 Min.
1/4 Min.
Sealant
Figure 3
************* Warning *************
Ensure that the bottom of the sleeve
pan is pitched toward the outside to
ensure positive secondary drainage.
********* WARNING *********
Application of the sealant to both
inside and outside surfaces of the
sleeve is critical to prevent
infiltration of outside elements
from entering the structure.
Drain
1/2 Bubble
GRILLE INSTALLATION
1. Remove weather guard.
2. Install 6 threaded studs into the threaded
holes in the grille. Note: Studs, nuts
and washers may be attached to the
grille or may be found in bulk packaging
with the grille shipment.
3. Insert the threaded studs into the slotted
holes in the wall sleeve.
4. Secure grille with a washer and 10-32
nut on each stud.
Electrical
Service Knock-out
********* WARNING *********
The Architectural Grille must be
installed prior to the installation of
the SPU unit into the sleeve.