Indoor Dual-Path Split Dehumidification Unit (Sdu)/Winterizer Assembly - Trane Performance Climate Changer Installation, Operation And Maintenance Manual

Figure 31. Hood installation
AHU outdoor roof
Screw self-driller
10-16 x .750
Butyl caulk tape
1.00 W x .125T.
Nut-Hex .31-18
Bolt .313-18 x .750 Hex
Bracket Support
Angle Hood Support
(when required)
Bolt .313-18 x .750 Hex
Indoor Dual-Path Split Dehumidification Unit (SDU)/Winterizer
Assembly
Heavy Objects!
Do NOT stack air handlers unless factory-designed and factory-approved. When stacking units,
factory-designed unit support brackets must be used. Stacking units without factory-approval
and without using factory-provided support brackets could result in the base unit collapsing
under the weight of the top unit which could result in death, serious injury and equipment
damage.
A dual-path, SDU/winterizer air handler consists of two units that are stacked together in a draw-
thru arrangement that share one supply fan. The unit on the first level (primary unit) is designed
to handle the return air and is larger than the unit on the second level (secondary unit), which is
designed to handle outside air.
Factory-designed unit support brackets are provided with all factory-approved, dual-path SDUs or
winterizer air handlers.
•
•
CLCH-SVX07C-EN
Detail A
WARNING
A horizontal SDU/winterizer dual-path air handler incorporates a horizontal supply fan on the
first level with a top opening in the primary unit that aligns with a bottom opening in the
secondary unit.
A vertical SDU/winterizer dual-path air handler incorporates a vertical supply fan on the second
level with a back opening that aligns with a front opening in the secondary unit.
Butyl caulk tape
1.00 W x .125T.
Hood
Nut-Hex .31-18
Installation - Mechanical
43