Figure 46 - Guide Brackets Together; Figure 47 - Lights Tier Transition Drawing - Pace PAI Installation And Assembly Manual

SECTION 3 - HANDLING, STORAGE, AND INSTALLATION
6. Apply the second layer of gasket (P/N 028-15954-
010) over top of the gasket applied in Step 5, but
include the raceways. Steps 5 and 6 are neces-
sary because the top panel of the bottom tier is
slightly recessed below the height of its raceways.
7. If the top tier has shipping splits, refer to Installing
Indoor AHU on page 33 for the correct assem-
bly procedure.
Make sure all of the electrical or control
wires or tubes in both tiers are clear.
8. Install four shackles, one in each bottom corner
connector or raceway lifting lug. Refer to the prop-
er lifting procedure for the specific shackles under
Proper Lifting with Shackles on page 22.
9. Fasten the sling/chain to the shackles and the
other end of the sling/chain to the spreader bar
(as needed).
10. Lift the top tier assembly with a crane or overhead
lift.
11. Feed the electrical and control connections from
the top tier to bottom tier, and make sure that they
will be accessible after the sections are joined. If
any connections will not be accessible, assemble
the electrical connectors and/or pneumatic tubes
according to the labels before joining the top and
bottom tiers.
12. Lower the top tier onto bottom tier so that mount-
ing brackets mate. Guide the brackets together,
using rods or drift pins through the bolt holes as
shown in Figure 46 on page 39.

Figure 46 - Guide Brackets Together

Form PA102.20-N1
Carefully place each section of the top tier without dis-
turbing the gaskets on the bottom tier.
13. Secure the top tier to bottom tier with 3/8 in. x 0.75
14. Install the corner connector hole plugs (P/N 021-
Lights for Tiered AHU (If Applicable)
If the AHU is equipped with lights, the following parts
are shipped loose on a tiered unit, as shown in Figure
47 on page 39.

Figure 47 - Lights Tier Transition Drawing

LD09626
39
Installation & Assembly Manual │ PACE
in. allen head bolts.
19568-000) as shown in Figure 42 on page 38
onto the bottom raceway corners.
• Conduit (P/N 025-39024-001)
• SJO Cord (P/N 025-35746-01)
JUMPER
CONDUIT
3
LD16602
Issue Date: 07/03/2018