Step 5 - Field Fabricate Ductwork; Step 6 - Rig And Place Unit - Bryant LEGACY 580J*16 Series Installation Instructions Manual

SLAB MOUNT (HORIZONTAL UNITS ONLY) —
Provide a level concrete slab that extends a minimum of 6 in. (150
mm) beyond unit cabinet. Install a gravel apron in front of con-
denser coil air inlet to prevent grass and foliage from obstructing
airflow.
NOTE: Horizontal units may be installed on a roof curb if re-
quired.
ALTERNATE UNIT SUPPORT (IN LIEU OF CURB OR
SLAB MOUNT) — A non-combustible sleeper rail can be used
in the unit curb support area. If sleeper rails cannot be used, sup-
port the long sides of the unit with a minimum of 3 equally spaced
4-in. x 4-in. (102 mm x 102 mm) pads on each side.
Step 5 — Field Fabricate Ductwork
NOTE: Cabinet return-air static pressure (a negative condition)
shall not exceed 0.35 in. wg (87 Pa) with economizer or
0.45 in. wg (112 Pa) without economizer.
For vertical ducted applications, secure all ducts to roof curb
and building structure. Do not connect ductwork to unit.
Fabricate supply ductwork so that the cross sectional dimen-
sions are equal to or greater than the unit supply duct opening di-
mensions for the first 18 in. (458 mm) of duct length from the unit
basepan.
Insulate and weatherproof all external ductwork, joints, and
roof openings with counter flashing and mastic in accordance with
applicable codes.
Ducts passing through unconditioned spaces must be insulated
and covered with a vapor barrier.
If a plenum return is used on a vertical unit, the return should
be ducted through the roof deck to comply with applicable fire
codes.
A minimum clearance is not required around ductwork.
"B"
REQUIRED
SPREADER
BARS
UNIT
LB
580J*08N/P 1295
580J*09N/P 1335
580J*12N/P 1435
580J*08D/F/K/M 1445
580J*09D/F/K/M 1565
580J*12D/F/K/M 1605
580J*14D/F/K/M 1760
580J*16D/F/K/M 2130
NOTES:
1. SPREADER BARS REQUIRED FOR SIZES 08-14 — Top damage will occur if spreader bars are not used. Not required for size 16.
2. Dimensions in () are in millimeters.
3. Hook rigging shackles through holes in base rail, as shown in detail "A." Holes in base rails are centered around the unit center of gravity. Use wooden
top to prevent rigging straps from damaging unit.
36"- 54"
(914-1371)
"C"
"A"
SEE DETAIL "A"
MAX WEIGHT
KG LB
588 88.0
606 88.0
651 88.0
657 88.0
711 88.0
730 88.0
800 88.0
968 116.0
Fig. 10 — Rigging Details
Failure to follow this caution may result in damage to roof-
ing materials.
Membrane roofs can be cut by sharp sheet metal edges. Be
careful when placing any sheet metal parts on such roof.
Step 6 — Rig and Place Unit —
not drop. Spreader bars are required for 08-14 size units; size 16
units do not require spreader bars. Rollers may be used to move
unit across a roof. Level by using unit frame as a reference. See
Table 2 and Fig. 10 for additional information.
Lifting holes are provided in base rails as shown in Fig. 10. Re-
fer to rigging instructions on unit.
Rigging materials under unit (cardboard or wood to prevent
base pan damage) must be removed PRIOR to placing the unit on
the roof curb.
When using the standard side drain connection, ensure the red
plug in the alternate bottom connection is tight. Do this before
setting the unit in place. The red drain pan can be tightened with a
/ -in. square socket drive extension. For further details see Step
1
2
11 — Install External Condensate Trap and Line on page 24.
Before setting the unit onto the curb, recheck gasketing on
curb.
Failure to follow this caution may result in equipment dam-
age.
All panels must be in place when rigging. Unit is not
designed for handling by fork truck.
PLACE ALL SEAL STRIP IN PLACE
BEFORE PLACING UNIT ON ROOF CURB.
DUCT END
DIMENSIONS
A
KG LB
2235 42.0
2235 41.5
2235 42.5
2235 43.0
2235 42.5
2235 42.0
2235 29.5
2945 60.5
16
CAUTION
Keep unit upright and do
CAUTION
DETAIL "A"
B
KG LB
1065 41.5
1055 49.5
1080 49.5
1090 41.5
1080 49.5
1065 49.5
750 53.0
1535 59.5
C
KG
1055
1255
1255
1055
1255
1255
1345
1510