Installing Ceiling Suspended Ahus; Figure 17 - Ceiling Suspended Ahu On Structural Steel - Pace PAI Installation And Assembly Manual

SECTION 3 - HANDLING, STORAGE, AND INSTALLATION

Installing Ceiling Suspended AHUs

It is recommended that support is struc-
turally engineered to prevent flexing,
sagging or twisting of the AHUs.
Use the following instructions to prepare the site for
ceiling suspended AHUs. Refer to Figure 17 on page
27 for proper support in the direction of airflow, and/
or if the AHU is positioned perpendicular to the direc-
tion of the air flow.
Structure Positioned in Direction of
Airflow
The AHU base must be supported continuously on
both sides.
STRUCTURE PARALLEL TO AIRFLOW
(units under 60" wide)
Fan Section
Plain View
MC RF
Fan Section
Elevation View

Figure 17 - Ceiling Suspended AHU on Structural Steel

Form PA102.20-N1
Air Flow
MB
27
Installation & Assembly Manual │ PACE
Structure Positioned Perpendicular to
Airflow
The AHUs must be supported (at a minimum) at the
following locations:
• Both ends
• At each shipping split, if applicable
• Upstream and downstream of each cooling coil
segment
• Under heavy components like fans, attenuators,
and heating segment.
• As a general rule, cross members should be
placed every 96 in., in addition to each shipping
split.
DO NOT obstruct the door operation,
filter access, piping, electrical or control
connections with suspension members.
STRUCTURE PERPENDICULAR TO AIRFLOW
(units over 60" wide)
Fan Section
Plain View
CC
Fan Section
Elevation View
Air Flow
RF
MB
Issue Date: 07/03/2018
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