Installing A Tiered Ahu; Figure 42 - Corner Connector Hole Plug (P/N 021-19568-000); Figure 43 - Tiered Ahu; Figure 44 - Second Tier Tie-Down Fastener Pack (P/N 386-03419-000) - Pace PAI Installation And Assembly Manual

PACE │ Installation & Assembly Manual
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)

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

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.
Issue Date: 07/03/2018
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.
LD116514
Figure 44 - Second Tier Tie-Down Fastener Pack
(P/N 386-03419-000)
LD09624
Figure 45 - Apply Gaskets to Top Panel on Bottom
Tier
38
SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
3/8 x 3/4 in. Button
Head Screw
3/8 x 3/4 in. Button
Head Screw
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.
TOP TIER
TOP LEFT
TOP PANEL
RACEWAY
BOTTOM TIER
3/8 in. Lock Nut
LD11029a
TOP RIGHT
RACEWAY
LD09690
Form PA102.20-N1