Packaged Rooftop Ventilator
11
Installation
Lifting
1. Ensure that all shipping materials have been
removed from unit.
2. To assist in determining rigging requirements,
weights are provided in the Unit Weights &
Dimensions section of this manual.
3. Refer to submittal for unit weight before lifting.
Actual weights will vary based on unit configuration.
4. Unit must be lifted by all lifting lugs provided at top
for all housing sizes except the 75 which must be
lifted from the bottom.
5. Spreader bars must be 6-12” longer than the span
of the unit to prevent damage to the cabinet by the
lift cables.
6. Never rest the spreader bar on the unit.
7. Always test-lift the unit to check for proper balance
and rigging before hoisting to desired location.
8. Never lift unit by weatherhood.
9. Never lift units in windy conditions.
10. Preparation of curb and roof openings should be
completed prior to lifting unit to the roof.
11. Check to be sure that gasketing (supplied by others)
has been applied to the top of the curb prior to
lifting the unit and setting on the curb.
12. Do not use forklifts for handling unit on housing
sizes 25, 45, 75, or 110.
13. If using forklift on housing 10, use forks with 48-inch
length and ensure forks extend to opposite side of
unit using factory-installed forklift pockets at unit
base.
WARNING
Spreader bars are required to prevent damage to the
cabinet, failure to do so can result in damage that is
the installer’s responsibility.
Lifting Details for XRV 75
Applies to units with or without side air return
Lift from the bottom of
the unit 4 lifting points.
Lift from the top of
the unit 6 - 8 lifting points.
Lifting Details for XRV 110
Applies to units with or without side air return
Rail Mounting and Layout
• The units may be installed on rails provided and
installed by others. Ensure that rails are designed to
handle the weight of the unit and provide proper load
distribution on building supports.
• Make sure that rail positioning does not interfere with
the openings on the unit.
• Rails should run the length of the unit and extend
beyond the unit a minimum of 12 inches on each side.
• Unit weight and overall dimensions can be found in
the Unit Weights and Dimensions section.
• Set unit on rails, center the base rails of the unit on the
steel support rails.
Typical Unit Installed on Rails Supplied by Others
Lifting Details for XRV 10-45,
Applies to units with or without side air return
Lift from the top of
the unit 4 lifting points.
