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"B"
REQUIRED
SPREADER
BARS
"A"
MAX WEIGHT
UNIT
LB
558J*04
740
558J*05
795
558J*06
865
558J*07
1040
NOTES:
1. SPREADER BARS REQUIRED — Top damage will occur if spreader bars are not used.
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.
Positioning on Curb —
Position unit on roof curb so that the following clearances
are maintained: 1/4 in. (6.4 mm) clearance between the
roof curb and the base rail inside the front and rear, 0.0 in.
clearance between the roof curb and the base rail inside on
the duct end of the unit. This will result in the distance
between the roof curb and the base rail inside on the
condenser end of the unit being approximately equal to
Fig. 3, section C- - C.
Although unit is weatherproof, guard against water from
higher level runoff and overhangs.
CAUTION
!
UNIT DAMAGE HAZARD
Failure to follow this caution may result in
equipment damage.
All panels must be in place when rigging. Unit is not
designed for handling by fork truck.
After unit is in position, remove rigging skids and
shipping materials.
Step 7 — Convert to Horizontal and Connect
Ductwork (when required)
Unit is shipped in the vertical duct configuration. Unit
without factory- - installed economizer or return air smoke
detector option may be field- - converted to horizontal ducted
configuration. To convert to horizontal configuration,
36"- 54"
PLACE ALL SEAL STRIP IN PLACE
(914-1371)
BEFORE PLACING UNIT ON ROOF CURB.
"C"
SEE DETAIL "A"
A
KG
IN
336
74.5
361
74.5
393
74.5
473
74.5
Fig. 5 - - Rigging Details
DUCT END
DIMENSION
B
MM
IN
MM
1890
38
1890
38
1890
38
1890
38
remove screws from side duct opening covers and remove
covers. Using the same screws, install covers on vertical
duct openings with the insulation- - side down. Seals around
duct openings must be tight. See Fig. 6.
Fig. 6 - - Horizontal Conversion Panels
Field- - supplied flanges should be attached to horizontal
duct openings and all ductwork should be secured to the
flanges. Insulate and weatherproof all external ductwork,
joints, and roof or building openings with counter flashing
and mastic in accordance with applicable codes.
Do not cover or obscure visibility to the unit's informative
data plate when insulating horizontal ductwork.
9
DETAIL "A"
C
IN
MM
965
33.5
850
965
33.5
850
965
33.5
850
965
41.5
1055
C11292
C06108
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