Model IG / IGX Make-Up Air6
®
Installation of Roof Mounted Unit
Arrangement DBC,
continued
Supply Duct with
Duct Adapter Installed
Exhaust Duct Installed
Sealant
Sealing Ductwork
Installing Supply Unit
Complete Combination Installation
NOTE
Installing the exhaust fan prior to the supply unit will
allow for easier installation of options.
NOTE
NFPA 96 requires that the exhaust fan be hinged.
NOTE
The use of all lifting lugs and a set of spreader bars is
mandatory when lifting unit.
NOTE
Be sure to complete the outdoor venting installation
instructions.
NOTE
Some units come with the weatherhood attached and
Step 8 may not apply.
8. Assemble and Attach Weatherhood
The weatherhood can now be assembled and/or
attached to the unit. Detailed assembly instructions
can be found with the weatherhood. If the optional
evaporative cooling module was selected, this step
does not apply. Instead, refer to the installation
instructions for the optional Evaporative Cooling Module
section, page7.
9. Seal Weatherhood Seam
Using an appropriate sealant, seal the seam between
the weatherhood and the unit.
7. Install Supply Unit
Use a crane and a set of spreader bars hooked to
the factory lifting lugs to lift and center the unit on the
extension/equipment support(s).
Use self-tapping sheet metal screws to fasten the unit
to the extension/equipment support(s).
6. Install Exhaust Options
Install optional hinge kit with restraining cables and
grease trap with drain connection.
Exhaust Fan
Installing Exhaust Fan
5. Install Exhaust Fan
Fasten exhaust fan to curb extension with self-tapping
sheet metal screws.
4. Apply Sealant
Apply an appropriate sealant around the perimeter of
the curb and duct adapter(s) to isolate fan vibration and
prevent water penetration.
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