Greenheck Fan Outdoor Air Ventilator - Manual (Page 6)

6
GREENHECK
®
Before beginning this installation:
Make sure that there is room to access the unit from all sides.
Make sure inlet of unit is located well away from any
exhaust fans.
Installation Instructions for:
SLAB, RAIL, AND CURB MOUNTING
NV-90 and NV-120
w/Horizontal Discharge
Lifting Lugs (4)
Spreader Bar
NV Unit
Intake
1a. Slab Construction
Recommended Size: 1ft. wider and
longer than total unit size.
Recommended Material: Concrete at
least 4" thick.
Slab should be set and leveled on a
sufficient bed of gravel for proper
drainage.
1b. Install Unit
Use a crane and spreader bar to
prevent damage to unit. Lifting lugs are
provided as shown in illustration.
Its is highly recommended that all
accessory items be lifted separately
and attached after the NV unit is in
place.
Unit may be fastened to slab through
lifting lugs.