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OPT-AS3,4,5,8 (07-22) 160202-B
INSTALLATION
Install the evaporative cooling module as follows. Item numbers in parentheses refer to
⚠ CAUTION ⚠
• DO NOT mount the cooling module directly on soft tar roofs where the legs could sink and tilt
the cooling module. Provide a weather-resistant solid wood or metal base under the cooling
module support base.
• DO NOT install the cooling module and connecting duct while blowers are in operation.
NOTE: Before installation, make preparations for necessary supplies, tools, and manpower.
Pre-Installation Checklist
Ensure that installation complies with all local, utility, and federal building and safety codes and regulations.
Check module for shipping damage. If damage is found, document it with transporting agency and immediately
contact Distributor.
If module is being installed indoors (model SSCBL, PGBL, or ADF/ADFH 700/1200), outside makeup air must
be provided.
If optional shipped-separate equipment is required (i.e., drain and fill kit, freeze protection kit, moisture elimination
pads, and/or water hammer arrestor), check to ensure that these parts are available for installation.
Ensure that there is adequate clearance between bottom of reservoir and roof or platform to allow for drain and
overflow pipe connections (refer to
section).
Ensure that roof or platform is capable of handling additional load of cooling module with full reservoir (refer to
section).
Ensure that mounting surface for cooling module is level and free of debris.
Assemble Base
.
1. Assemble all four legs:
a. Secure each two-piece leg (3) together using four bolts (9) and nuts (10).
b. Top flange of assembled legs should be level with bottom of system cabinet. Adjust legs to proper height and
securely tighten bolts and nuts. Leg height is adjustable from 9–16 inches (229–406 mm).
c. Position four assembled legs approximately 2 feet (610 mm) from air inlet side of cabinet in rectangular
pattern corresponding to size of cooling module. Check again to ensure that top of legs are level with bottom
of makeup air system cabinet.
Figure 2. Base Assembly (Refer to
)
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