Greenheck DG/DGX Pilot Ignition (470651_IOM) - Manual (Page 6)

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).
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.
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.
2. Apply Sealant
Apply an appropriate sealant around the
airstream opening to create an airtight seal.
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.
Installing Supply Unit
Complete Combination Installation
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 the evaporative cooling
module.
NOTE
When mounting the evaporative cooler, it is
important that it is level to ensure proper operation
and water drainage.
Metal Cover
Equipment
Support
Roof Curb
Equipment Support
Placing Evaporative Module
Sealant
Sealant
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.
5. Seal Evaporative Module Seam
Using an appropriate sealant, seal the seam between
the evaporative cooling module and the unit.
Securing
Evaporative Module
Installation of Evaporative Cooling
Module (optional)
NOTE
Small evaporative coolers ship attached to the base
unit and require no additional mounting.
Model DG / DGX Pilot Ignition Make-Up Air 6
®