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OPT-AS3,4,5,8 (07-22) 160202-B
Connect Transition Duct to Blower Cabinet
1. Remove and save screws from along top rear lip of blower cabinet panel.
2. Slide transition duct flange underneath blower cabinet top edge and loosely insert two existing screws through
top edge, through transition duct flange, and into cabinet end panel.
3. If transition duct has duct extensions (11 or 12), insert duct extension mounting flanges into slots on blower
cabinet end panel.
Figure 4. Evaporative Cooling Module, Transition Duct, and Blower Cabinet (Refer to
)
Connect Transition Duct to Evaporative Cooling Module
1. With transition duct connected to blower cabinet, carefully tilt transition duct upwards to clear cooling module
reservoir pan and slide cooling module underneath catch pad mounting trough.
2. Squeeze cooling module and transition duct assembly into blower cabinet until tight fit is obtained.
3. Align holes in cooling module corner leg (3) with holes in transition duct sides and secure transition duct sides to
cooling module using screws (8)—five per side.
4. Secure transition duct flange to front top cover (4) using seven screws (8).
5. With cooling module and transition duct properly positioned on blower cabinet, tighten two screws that have been
loosely inserted. Re-insert and tighten existing screws in remaining holes along top edge of cabinet.
NOTE: It may be easier to connect the transition duct to the blower cabinet with the media pads
removed. If optional moisture elimination pads are included, media pads will have to be removed
to complete the installation (refer to
Installation/Replacement of Media Pads
section).
6. If there are no duct extensions (11 or 12) on transition duct, reach inside cooling module and secure module to
back of blower cabinet end panel using six screws (8). If there are duct extensions, reach inside cooling module
and secure duct extensions to back of blower cabinet end panel using four screws (8).
7. Secure bottom of transition duct to blower cabinet end panel using seven screws (8).
8. Ensure that all screws are in place and seal all corners of transition duct assembly using waterproof silicone
sealant to prevent moisture from entering cabinet.
COOLING MODULE
TRANSITION DUCT
FLANGE
BLOWER CABINET
11
OR
12
CATCH PAD
MOUNTING TROUGH
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