Indoor Unit - Greenheck DGX Installation, Operation And Maintenance Manual

Installation of Indoor Unit
1. Install Hangers
Install threaded hangers from ceiling supports. When
locating hangers, allow enough room to open access
panel(s). Be sure to allow for the recommended diffuser
height outlined in the Diffuser installation section,
page 6. Two nuts must be used on the end of each
threaded hanger. Ceiling supports are supplied by
others. Refer to diagram below.
NOTE
Refer to the Diffuser installation section, page 6, for
instructions on mounting the diffuser.
2. Install Unit
Using sheet metal screws, attach the weatherhood/
thru-wall/filter section to the blower/burner section.
The flange on the weatherhood/thru-wall/filter section
should overlap the flange on the blower/burner section.
NOTE
50/50 units are shipped with the louvered intake
assembled to the unit and do not require a thru wall
weatherhood.
Raise the assembled unit into place.
Using two nuts per hanger, fasten the unit supports to
the hangers under the unit. Appropriate unit supports,
such as the optional manufacturer hanging bracket kit,
or c-channel and angle iron (supplied by others), should
be used. Refer to the Indoor Mounting drawing.
In order to prevent the unit from swinging and to provide
a safe environment for service and maintenance,
additional measures must be taken to secure the unit in
all directions.
Ceiling Supports
Indoor Mounting
NOTE
Two nuts must be used on each end of each threaded
hanging rod for proper support.
4 DGX Industrial Space Heating
Diffuser
Hangers
Unit
Supports
NOTE
Good duct practices should be followed for all
ductwork. Ductwork should be installed in accordance
with SMACNA and AMCA guidelines, NFPA 96 and
any local codes. Reference the CAPS submittal for
duct sizes.
3. Seal Wall Opening
Apply sealant around the perimeter of the weatherhood
to prevent water penetration and drafts into the building.
Seal Wall Opening
Sealant
Sealant
®