Installation; Lifting; Unit Weights; Recommended Roof Openings - Greenheck HRE-20 Installation, Operation And Maintenance Manual

Heat recovery unit with evaporative cooling
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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.
UNIT WEIGHTS (dry weights)
Unit Size Approx. Weight (lbs)
HRE-20
HRE-45
HRE-55
HRE-90
RECOMMENDED ROOF OPENING
Model
HRE-20
HRE-45
HRE-55
HRE-90
All dimensions shown are in inches.
1500
2300
3000
5000
U
V
46
37
54
39
65
47
85
49
Lift using lifting
lugs and
spreader bar
FIGURE 1
V
EXHAUST
INLET
U
SUPPLY
OUTLET
FIGURE 2
3

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