Greenheck Fan HRE-20 - Manual (Page 3)

INSTALLATION
The system design and installation should follow
accepted industry practice, such as described in the
ASHRAE Handbook.
Adequate space should be left around the unit for
piping coils and drains, filter replacement, and
maintenance. Sufficient space should be provided on
the side of the unit for routine service and component
removal should that become necessary.
See pages 6 and 7 for more detail on appropriate
clearances.
LIFTING
Units must be lifted as it ships from the factory. All
units are equipped with lifting lugs. THE USE OF ALL
LIFTING LUGS IS MANDATORY WHEN LIFTING.
Lifting should only be done with all access doors
closed to avoid damaging the unit. To prevent
damage to the unit cabinetry, use spreader bars.
Spreader bars must be in position to stop cables from
rubbing the frame or panels. Before hoisting into
position, test lift to insure stability and balance. Avoid
twisting or uneven lifting of the unit. Never lift units by
weatherhoods.
Lift using lifting
lugs and
spreader bar
FIGURE 1
Unit Size Approx. Weight (lbs)
HRE-20 1500
HRE-45 2300
HRE-55 3000
HRE-90 5000
UNIT WEIGHTS (dry weights)
RECOMMENDED ROOF OPENING
EXHAUST
INLET
SUPPLY
OUTLET
V
U
Model U V
HRE-20 46 37
HRE-45 54 39
HRE-55 65 47
HRE-90 85 49
All dimensions shown are in inches.
FIGURE 2
3