Greenheck DGX Installation, Operation And Maintenance Manual page 7

Installation - Evaporative Cooler (Optional)
Small evaporative coolers ship attached to the base unit and require no additional mounting.
Step 1 Locate Equipment Support(s)
Position equipment support(s) on the roof (reference
the CAPS submittal for placement of equipment
support(s) in relation to the unit). Verify that all unit
supports are level, shim if necessary. Attach
equipment support to the roof, remove metal cover,
flash to wooden nailer and reinstall cover. Refer to
figure #14.
Step 2 Apply Sealant
Apply an appropriate sealant around the airstream
opening to create an air tight seal. See figure #15.
Step 3 Set Evaporative Cooling Module
Use a crane and a set of spreader bars hooked to the
factory lifting lugs to lift and center the module on the
equipment support(s). The flange on the evaporative
cooler should overlap the flange on the unit. See
figure #16.
NOTE!
The use of all lifting lugs and a set of spreader
bars is mandatory when lifting the evaporative
cooling module.
Step 4 Secure Cooling Module to Unit
Use self-tapping screws to fasten the cooling module
to the base unit along the top and down both sides.
Fasten at the top through the flanges. To fasten the
sides, the media must be removed. To remove the
media, first remove the access panel on the
evaporative module and disconnect the evaporative
pump(s). The media will now slide out. With the media
removed, you can access the side fastening points
inside the evaporative module. With all the screws in
place, reinstall the media, reconnect the pumps and
reinstall the access panel.
When mounting the evaporative cooler, it is important that it is level to ensure proper operation and
NOTE!
Figure 14. Equipment Support
Figure 15. Equipment Support
Figure 16. Placing Evaporative Module
Figure 17. Securing Evaporative Module
NOTE!
water drainage.
7
Metal Cover
Equipment
Support
Sealant