40 FAXA-SVX01B-EN
Installation
installation
procedure
Rigging and Placement
Before Rigging and Lifting the Unit
1. Verify the roof curb is installed properly
and has the prooper gaskets installed
and is level and square to ensure
adequate curb-to-unit seal.
2. Attach adequate strength lifting cables
to the lifting lugs. See Tables I-DW-1 & I-
DW-2 on page 32 for unit & component
weights. See Figure I-PC-4 on page 32
for the proper unit lifting procedure. To
lift the unit, use spreader bars to protect
the unit and ensure uniform lift. Note
that the minimum distance between the
lifting hook and the top of the unit
should be seven feet.
3. Test-lift the unit at a minimum height
above the ground to verify all rigging
Figure I-IP-1. Fresh air unit center of gravity and weight distribution
equipment operates properly and the
unit is properly balanced.
4. Lift the unit and position it over the roof
curb. Align the unit base rails with the
roof curb.
5. Lower the unit onto the curb. Make
sure the curb gasket remains intact
when positioning the unit.
Center of Gravity and Weights
Center of gravity dimensions and corner
weights are approximate. Approximate
unit shipping weight is the sum of the four
corner weights. Reference unit weights in
the Dimensions and Weights section on
page 32. See Figure I-IP-1 for fresh air
unit center of gravity and for corner
weights.
unit center of gravity max operational typical point loading — weight, lbs.
size X (in) Y (in) weight (lbs) A B C D E F G H I J
units without total energy wheel
031 90 50 4934 905 1692 1562 775
040 90 50 5194 953 1781 1644 816
051 100 51 6190 1392 1931 1703 1164
066 100 51 6722 1512 2097 1849 1264
units with total energy wheel
031 123 50 6394 1023 1023 1088 1151 1088 1023
040 123 50 6718 1075 1075 1075 1142 1142 1142
051 130 51 8081 1051 1212 1374 1616 1455 1455
066 130 51 8663 1126 1300 1473 1819 1559 1386
D
E
F
C
B
A
unit without TE wheel option
unit with TE wheel option
G
H
J
I
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