Unit Leveling Tolerances; Rigging Details; Step 5 - Field Fabricate Ductwork - Carrier 50TC Installation Instructions Manual

Fig. 6 - - Unit Leveling Tolerances
Step 5 — Field Fabricate Ductwork
Cabinet return-air static pressure (a negative condition)
shall not exceed 87 Pa (0.35 in. wg) with economizer or
112 Pa (0.45 in. wg) without economizer.
"B"
F A
N
S I
D E
MAX WEIGHT
UNIT
KG
50TC-A07 336
50TC-D08 641
50TC-D09 693
50TC-D12 711
NOTES:
1. Dimensions in ( ) are in inches.
2. 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.
MAXIMUM ALLOWABLE
DIFFERENCE IN. (MM)
A-B B-C A-C
0.5" (13) 1.0" (25) 1.0" (25)
C06110
914-1371
(36"-54")
SEE DETAIL "A"
"C"
"A"
LB MM
740 1890
1410 2235
1525 2235
1565 2235
Fig. 7 - - Rigging Details
For vertical ducted applications, secure all ducts to roof curb
and building structure. Do not connect ductwork to unit.
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.
For units with accessory electric
applications require a minimum clearance to combustible
surfaces of 25 mm (1- - in) from duct for first 305 mm (12- - in)
away from unit. Vertical applications do not require a
minimum clearance.
Minimum clearance is not required around ductwork.
PLACE ALL SEAL STRIP
IN PLACE BEFORE PLACING
UNIT ON ROOF CURB
DUCT END
DIMENSIONS
A B
IN MM
74.5 965
88.0 1040
88.0 1030
88.0 1015
10
heaters: Horizontal
DETAIL A
C
IN MM IN
38.0 850 33.5
41.0 1055 41.5
40.5 1255 49.5
40.0 1255 49.5
C09458