210.100-IOM (JUL 2021)
Page 20
AcuAir Hygienic Air Units
Installation
BASE CHANNEL
SPLIT COVER
BASE SKIN
CAULK EDGE OF COVER
AFTER ANCHORING
CAULK
Interior Finish Caulking
to be: DOW RTV-732
Food Grade Caulk
BASE
CHANNEL
3" x UNIT I.D.
SPLIT COVER
#12–24 x 1.25
TEK SCREW
W/EPDMWASHER
CAULK
BASE SKIN
C
L
SPLIT
.25" DIA CONTINUOUS
BEAD OF CAULK
TYP JOINT OF TWO SECTIONS WITH FLAT SURFACES
#12–24 x 1.25 TEK SCREW
W/EPDMWASHER
CAULK
BASE SKIN
BASE
CHANNEL
INTERNALWALL
FINISH BEAD
OF CAULK
C
L
SPLIT
1.5 X 1.5 X UNIT I.D.– 0.5
SPLIT COVER
SIDE VIEW WHEN INTERNAL WALL IS AT A SPLIT
Figure 15: Base split reassembly procedure
Food Grade connections
Installing the reconnect
1. Position sections on level surface.
2. Apply polyurethane caulk in two parallel continuous
beads on both faces as indicated in Figure 15, to Figure
17.
3. Attach hand winches to either side of the base using
relocated lifting lugs and pull the sections together.
Bolt the base anges as shown in Figure 15.
NOTICE
It may be advantageous to locate the rst AcuAir
®
unit section in its nal position and attach it to the
support structure before pulling the next section into
position against it.
4. The factory-installed unit reconnect anges are joined
using 1/4 in. bolts and nuts shipped loose in a container
in the blower section of the unit. All bolt holes require
a bolt.
If bolt holes do not align, it may be due to racking dur-
ing transit to job site. Use a jack to lift one side until
holes on the wall of the opposite side align. Bolt this
wall together and then remove jack from opposite side.
As the unit settles, the out-of-square racking caused
during transit realigns. Continue assembly with bolting
other side, base, and roof, making use of a drift pin to
align the holes. Bar clamps may be needed to align the
roofs together. If bar clamps are needed, use wood for
protection in between the bar clamp and unit.
5. Check to see if all bolts are secured correctly, and ap-
ply polyurethane caulk to all exterior seams as shown
in Figure 18.
NOTICE
Frick suggests that the base ange bolts be only
loosely tted before tting all 1/4 in. reconnect ex-
ternal ange bolts. After all of the 1/4 in. ange bolts
are in place, tighten the base ange bolts and nish
tightening all of the reconnect ange bolts. This se-
quence helps make alignment of the reconnect ange
holes a bit easier.
6. Apply two continuous 0.25 in. diameter beads of caulk
on either side of the oor section split. Reference either
the lower left or the lower right views of Figure 15.
7. Center the split cover over the oor split and two
parallel beads of caulk. Attach the split cover using
#12 TEK screws. It may be necessary to predrill holes
through the base ange for the TEK screws.
8. Seal the edges of the split cover with beads of caulk as
shown in Figure 15.
9. Inspect all splits to see if polyurethane caulk was ap-
plied and split was bolted correctly.
10. Reconnect all electrical conduit and wiring at the recon-
nect junction boxes. Use electrical conduit sealing putty
to seal all conduit openings into and out of the junction
3 IN. X UNIT I.D.
SPLIT COVER
0.25 IN. DIA CONTINUOUS
BEAD OF CAULK
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