Pace PAI, Installation And Assembly Manual

Page: 38 / 108

SECTION 3 - HANDLING, STORAGE, AND INSTALLATION PACE │ Installation & Assembly Manual
Issue Date: 07/03/2018
38
Form PA102.20-N1
14. Repeat this procedure for each additional section.
15. For AHUs or sections without base rails, install the
corner connector hole plugs (P/N 021-19568-000)
as shown in Figure 42 on page 38 on the bot-
tom raceway corners.
Figure 42 - Corner Connector Hole Plug (P/N 021-
19568-000)
LD116514
Installing a Tiered AHU
A tiered AHU, as shown in
Figure 43 on page 38,
may not be factory assembled. Field assembled AHUs
are shipped with the top tier segment skidded.
Figure 43 - Tiered AHU
LD09624
This top-tier segment is equipped with brackets bolted
to the bottom raceway as shown in Figure 44 on page
38 . The bottom-tier segment is equipped with brack-
ets bolted to the top raceway, and are used to secure
the top segment to the bottom segment.
After final alignment, bolt the two brackets with the
hardware supplied fastener pack (P/N 386-03419-000)
as shown in Figure 44 on page 38 .
3/8 in. Lock Nut
3/8 x 3/4 in. Button
Head Screw
3/8 x 3/4 in. Button
Head Screw
Figure 44 - Second Tier Tie-Down Fastener Pack
(P/N 386-03419-000)
LD11029a
1. Verify the correct sections and orientation of the
top and bottom tiers.
2. Remove cross brace(s) (shipping supports) from
the top tier.
3. Remove the plastic shipping covers and supports.
4. Make sure all wiring and/or control tubing connec-
tion pigtails are secured out of the path of the mat-
ing surfaces to prevent damage during rigging.
5. Make sure the neoprene gasket (P/N 028-15954-
010) is properly installed on the bottom tier. If the
top tier is shorter in the direction of airflow than
the bottom tier, apply the gasket material on the
top panel of the bottom tier from raceway to race-
way, but not on top of the raceways as shown in
Figure 45 on page 38 .
Figure 45 - Apply Gaskets to Top Panel on Bottom
Tier
LD09690
TOP TIER
TOP LEFT
RACEWAY
TOP PANEL
BOTTOM TIER
TOP RIGHT
RACEWAY