Pace PAI, Installation And Assembly Manual

Page: 32 / 108

SECTION 3 - HANDLING, STORAGE, AND INSTALLATION PACE │ Installation & Assembly Manual
Issue Date: 07/03/2018
32
Form PA102.20-N1
Pulling the AHU Sections Together
Use the following instructions to pull the sections to-
gether.
1. Attach the come-a-longs to the far end of the next
section as shown in Figure 26 on page 32 .
Figure 26 - Come-A-Long Attached to a Section
LD13775
COME-A-LONG
Make sure the chain does not apply
pressure to the drain connection. Im-
proper positioning of the chain may
cause damage to the AHU.
2. Start pulling the sections together evenly on both
sides.
a. Make sure all electrical or control wires or
tubes are clear.
b. Guide the top raceways together by placing
the rods or drift pins through the holes in the
top guide angles. When the raceways are
together, install the long bolts provided as
shown in Figure 27 on page 32 .
Figure 27 -
Bring Shipping Splits Together
LD13775
SHIPPING-
SPLIT
c. Guide the bottom raceway/base rails togeth-
er, using rods or drift pins through the holes
in the lifting lugs on opposite sections simul-
taneously.
d. If there is any difficulty aligning the sections,
due to racking of one section or the other,
use a come-a-long diagonally on the inside
of that section at the shipping split or across
the tops of the opposite sections.
e. If there is any difficulty aligning the sections
due to the top and bottom not pulling together
simultaneously, apply shims under the sec-
tions as needed to compensate for uneven
placement area.
3. Complete pulling the sections together, using the
come-a-longs. The bolts hold the sections tight af-
ter they are pulled together.
4. Fasten the bottom lifting lugs together with the 1/2
in. x 4 in. bolts in fastener packet (P/N 386-03418-
000).
5. Fasten the top raceway bracket with the 1/2 in.
x 5-1/2 in. bolts provided in fastener packet (P/N
386-03418-000).
6. Apply a 1/4 in. bead of caulking to exterior of the
seam on the roof and both sides as shown in Fig-
ure 28 on page 32 . Repeat the process for the
seam on the floor inside the AHU.
Figure 28 - Applying Caulk to Seams
LD13776
7. Apply neoprene gasket (P/N 028-15954-010) to
the underside of the seam caps, and install them
over the joints with hex head screws (P/N 386-
04747-000) as shown in Figure 29 on page 33 .
Painted seam caps are applied over the joints on
the sides and roof of the exterior, and galvanized
seam caps are applied on the interior floor only.