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STACKED UNITS
IMPORTANT: If the top level shipping split arrives separately,
do not assemble until you have completed the installation of the
lower level shipping splits. This will ease the assembly process.
1.
For lower level shipping split, follow Steps 1 through 8 on
page 92 for non-stacked units.
2.
Refer to Fig. 33. If the split in the lower level section is under
the top section, the top horizontal frame of the vertical dis-
charge section will not have the rectangular brackets.
3.
Attach the lower level shipping splits from the inside of the
bottom vertical discharge section using the AB 1/4 — 3/4
screw as shown in Fig. 33, Detail A. Typically this screw is
installed above the coil and under the fan sled, depending on
the configuration of the unit.
UPSTREAM SECTION
DETAIL B
SEE DETAIL A
DO NOT REMOVE
CENTER SUPPORT
39MW ROOF CURB
Fig. 32 — 39MW Split Assembly
SEE DETAIL A
Fig. 33 — Attaching Split Sections — Stacked Units
4.
After completing the lower level shipping splits assembly,
proceed to the upper level shipping split installation using the
provided washers, gasket and self-locking nuts.
5.
Fully tighten all bolts starting from the base rails and moving
to the top.
6.
If unit has single point power, verify that the upper level sec-
tion has split tags for the power plug connectors.
7.
Verify that the labels on the power plug connectors (Fig. 34)
and, if used, the labels on the control plug connectors on both
sections match.
8.
Detach harness(es) from shipping restraints, connect power
poles for each harness as shown in Fig. 35.
Duct Connections
Refer to submittal drawing and Fig. 36 and 37 for dimensions.
DETAIL A
SLIDE
BRACKET
ROOF CAP
INSULATION
TAPE
DETAIL B
AB SCREW 1/4 - 3/4
95
a39-4332
DO NOT REMOVE
ANGULAR BRACE
ROOF CAP
BRACKET
CAULK AREA TO
ELIMINATE WATER
INTRUSION
a39-4231
SCREW WITH
RUBBER SEAL
DETAIL A
a39-4293
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