Stacked Units; Duct Connections - Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual

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 86 for non-stacked units.
2. Refer to Fig. 27. If the split in the lower level section is
under the top section, the top horizontal frame of the
vertical discharge section will not have the rectangular
brackets.
UPSTREAM SECTION
DETAIL B
SEE DETAIL A
DO NOT REMOVE
CENTER SUPPORT
39MW ROOF CURB
Fig. 26 — 39MW Split Assembly
SEE DETAIL A
Fig. 27 — Attaching Split Sections — Stacked Units
3. Attach the lower level shipping splits from the inside
of the bottom vertical discharge section using the AB
/ — / screw as shown in Fig. 27, Detail A. Typical-
1 3
4 4
ly this screw is installed above the coil and under the
fan sled, depending on the configuration of the unit.
4. After completing the lower level shipping splits as-
sembly, proceed to the upper level shipping split in-
stallation using the provided washers, gasket and self-
locking nuts.
5. Fully tighten all bolts starting from the base rails and
moving to the top.
Duct Connections —
Fig. 28 and 29 for dimensions.
DETAIL A
SLIDE
BRACKET
ROOF CAP
INSULATION
TAPE
DETAIL B
AB SCREW 1/4 - 3/4
88
Refer to submittal drawing and
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