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Lifting Points
Refer to
Figure 38
and
Figure 39
to determine wheterh a four or six point lift is required.
"X"
X = distance from the entering air end of the unit (or shipping
section) to the first lifting lug in the direction of air flow.
For all unit or shipping sections with outdoor air/return air
options, X = 48"
For shippings sections without outdoor air/return air options,
X = 0
"Y"
Y = distance from condenser or leaving air end of unit to the
last lifting lug.
For all units or shipping sections with condensers,
• Y = 36.5 (sizes 50-60) or
• Y = 30.0 (sizes 70-105) or
• Y = 38.0 (sizes 110–115).
For all units or shipping sections without condensers, Y = 0.
"Z"
Z = total base rail length of the units.
NOTE: Z excludes hoods and overhung parts extending past
base rails of the unit.
"A"
A = Z - X - Y
• If A < 288", 4-point lift is sufficient
• If a > 288", 6-point lift is required
"B"
B = distance from first lifting lug to middle lifting lug on units
with 6-point lift.
B = A / 2 +/- 48"
NOTE: Middle lifting lug may be installed on either side of
the midpoint to avoid interference with condensate
drains.
IM 926-3 • ROOFPAK APPLIED SYSTEMS
and the following calculations
Figure 38: Unit Type RPS/RDT Lifting Points
Figure 39: Unit Type RFS or RPS/RDT Factory Split at
Condenser
26
Mechanical Installation
RDT/RPS 015C–030C: "B" min. = 62" (1575 mm)
RDT/RPS 036C–040C: "B" min. = 84" (2134 mm)
RDT 045C–135C: "B" min. = 72" (1829 mm)
RPS 045C–090C: "B" min. = 96" (2348 mm)
RPS 105C: "B" min. = 120" (3048 mm)
015C–030C: "B" min. = 62" (1575 mm)
036C–040C: "B" min. = 84" (2134 mm)
045C–090C: "B" min. = 96" (2348 mm)
105C: "B" min. = 120" (3048 mm)
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