Greenheck MSX (470658) - Manual (Page 6)

6 Modular Supply Make-Up Air 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).
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, refer to the next section, Installation
of the Optional Evaporative Cooling Module.
9. Seal Weatherhood Seam. Using an appropriate
sealant, seal the seam between the weatherhood
and the unit.
NOTE
The use of all lifting lugs and a set of spreader bars is
mandatory when lifting unit.
NOTE
Some units come with the weatherhood attached and
Step 8 may not apply.
Installing Supply Unit
Complete Combination Installation
6. Install Exhaust Options. Install optional hinge kit
with restraining cables and grease trap with drain
connection.
5. Install Exhaust Fan. Fasten exhaust fan to curb
extension with self-tapping sheet metal screws.
Installing the exhaust fan prior to the supply unit
will allow for easier installation of options.
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.
NOTE
NFPA 96 requires the exhaust fan to be hinged.
Supply Duct with
Duct Adapter Installed
Exhaust Duct
Installed
Sealant
Sealing Ductwork
Model CUBE
Exhaust Fan
Installing Exhaust Fan