Bryant DURAPAC PLUS SERIES 542J - Manual (Page 3)

— 3 —
Outlet grilles must not lie directly below unit discharge.
NOTE: A 90-degree elbow must be provided in the ductwork
to comply with UL (Underwriters Laboratories) codes for use
with electric heat.
IV. STEP 4 — MAKE UNIT DUCT CONNECTIONS
Unit is shipped for thru-the-bottom duct connections. Duct-
work openings are shown in Fig. 6. Field-fabricated concen-
tric ductwork may be connected as shown in Fig. 7 and 8.
Attach all ductwork to roof curb and roof curb basepans.
Refer to installation instructions shipped with accessory roof
curb for more information.
V. STEP 5 — TRAP CONDENSATE DRAIN
See Fig. 4 or 5 and 9 for drain location. Plug is provided in
drain hole and must be removed when unit is operating. One
3 /
4
-in. half coupling is provided inside unit indoor air section
for condensate drain connection. An 8 1 /
2
in. x 3 /
4
-in. diameter
nipple and a 2-in. x 3 /
4
-in. diameter pipe nipple are coupled
to standard 3 /
4
-in. diameter elbows to provide a straight path
down through holes in unit base rails (see Fig. 10). A trap at
least 4-in. deep must be used.
WARNING: For vertical supply and return units,
tools or parts could drop into ductwork and cause an
injury. Install a 90-degree turn in the return ductwork
between the unit and the conditioned space. If a
90-degree elbow cannot be installed, then a grille of
sufficient strength and density should be installed to
prevent objects from falling into the conditioned space.
Due to electric heater, supply duct will require
90-degree elbow.
23"
14 3/4"
6"
3 1/2"
FULLY INSULATED
SUPPLY PLENUM
1" INSULATION
1 1/2 # DENSITY,
STICK PINNED & GLUED
2" X 1/4
SUPPORT TYP.
STITCH WELDED
12" WIDE STANDING
SEAM PANELS
NOTE: CRRFCURB013A00 is a fully factory preassembled horizontal
adapter and includes an insulated transition duct. The pressure drop
through the adapter curb is negligible.
For horizontal return applications: The power exhaust and barometric
relief dampers must be installed in the return air duct.
Fig. 2 — Horizontal Supply/Return Adapter Installation
ACCESSORY
PACKAGE NO.
CURB
HEIGHT
DESCRIPTION
CRRFCURB013A00
1
′
-11
″
(584)
Pre-Assembled, Horizontal
Adapter Roof Curb
NOTES:
1. Dimensions in ( ) are in millimeters.
2. Refer to Table 1 for unit operating weights.
3. Remove boards at ends of unit and runners prior to rigging.
4. Rig by inserting hooks into unit base rails as shown. Use corner
post from packaging to protect coil from damage. Use bumper
boards for spreader bars.
5. Weights do not include optional EconoMi$erIV. See Table 1 for
EconoMi$erIV weight.
6. Weights given are for aluminum indoor coil plate fins and copper
outdoor coil plate fins. Weights of other metal combinations are
listed in Table 1.
Fig. 3 — Rigging Details
UNIT 542J
MAXIMUM
SHIPPING WEIGHT
DIMENSION A
lb kg ft-in. mm
150 1895 860 3-1 948
180 2205 1000 3-6 1059
CAUTION: All panels must be in place when rigging.