IM 893-10 • ROOFPAK SINGLEZONE UNITS 24 www.DaikinApplied.com
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Post and Rail Mounting
CAUTION
The unit must be level side to side and over the entire length.
Equipment damage can result if the unit is not level.
When mounting by post and rail, run the structural support the
full length of the unit. Locate the structural member at the base
of the unit as shown in
supported by the structural member.
If resilient material is placed between the unit and the rail,insert
a heavy steel plate between the unit and the resilient material
to distribute the load. Seal cabinet penetrations (electrical,
piping, etc.) properly to protect against moisture and weather.
Figure 26: Post and Rail Mounting
Table 7: Post and Rail Mounting Dimensions
Unit Size
15–42
45–140
A
Condensing Unit
99"
99"
Air Handler
94"
B
—
93"–94"
97"
Rigging and Handling
CAUTION
Use all lifting points. Improper lifting can cause severe
personal injury and property damage.
CAUTION
Lifting points may not be symmetrical to the center of gravity
of the unit. Ballast or unequal cable lengths maybe required.
Lifting brackets with 2ʺ (51 mm) diameter holes are provided
on the sides of the unit.
Use spreader bars, 96ʺ to 100ʺ (2438 to 2540 mm) wide to
prevent damage to the unit cabinet. Avoid twisting or uneven
lifting of the unit. The cable length from the bracket to the hook
should always be longer than the distance between the outer
lifting points.
If the unit is stored at the construction site for an intermediate
period, take these additional precautions:
1. Support the unit well along the length of the base rail.
2. Level the unit (no twists or uneven ground surface).
3. Provide proper drainage around the unit to prevent
flooding of the equipment.
4. Provide adequate protection from vandalism, mechanical
contact, etc.
5. Securely close the doors.
6. If there are isolation dampers, make sure they are properly
installed and fully closed to prevent the entry of animals
and debris through the supply and return air openings.
7. Cover the supply and return air openings on units without
isolation dampers.
shows an example of the rigging instruction label
shipped with each unit.
Figure 27: Rigging and Handling Instruction Label
A
B
MAX.
MAX.
* Beam can extend beneath unit no more than 5" to allow adequate space
for duct connections and electrical entry.
Unit has either four or six lifting points (four-point shown below).
Rigging cables must be at least as long as distance “A”
Spreader bars
required
Lift only as indicated
Caution:
Lifting points may not
be symmetrical to center of
gravity of unit. Balast or unequal
cable lengths may be required.
A
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