8
Important: If using bottom discharge with roof curb, duct-
work should be attached to the curb prior to installing the
unit. Ductwork dimensions are shown in Roof Curb Installa-
tion Instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with the
National Roofing Contractors Association Manual.
Lower unit carefully onto roof mounting curb. While rigging
unit, center of gravity will cause condenser end to be lower
than supply air end.
To assist in determining rigging requirements, unit weights
are shown as follows:
CG
BD
AC
RETURN
SUPPLY
EVAPORATOR COIL
COMPRESSOR 1
COMPRESSOR 2
Y
X
CORNER & CENTER OF GRAVITY LOCATIONS
090/102 120 150
Corner Weigh t - A 195 23 0 335
Corner Weigh t - B 270 33 0 390
Corner Weigh t - C 240 28 0 295
Corner Weigh t - D 330 40 5 345
Unit Shipping Weight 1055 1275 1390
Unit Operating Weight 1030 1235 1365
X (Inches) 55 55 47
Y (Inches) 36 36 33.5
DATA CPG Weights (lbs)
T
O
PREVENT
SEVERE
DAMAGE
TO
THE
BOTTOM
OF
THE
UNIT
,
DO
NOT
FORK
LIFT
UNIT
AFTER
WOOD
STRUTS
HAVE
BEEN
REMOVED
.
CAUTION
Bring condenser end of unit into alignment with the curb. With
condenser end of the unit resting on curb member and using
curb as a fulcrum, lower opposite end of the unit until entire
unit is seated on the curb. When a rectangular cantilever
curb is used, care should be taken to center the unit. Check
for proper alignment and orientation of supply and return
openings with duct.
RIGGING REMOVAL
T
O
PREVENT
DAMAGE
TO
THE
UNIT
,
DO
NOT
ALLOW
CRANE
HOOKS
AND
SPREADER
BARS
TO
REST
ON
THE
ROOF
OF
THE
UNIT
.
CAUTION
Remove spreader bars, lifting cables and other rigging equip-
ment.
ELECTRICAL WIRING
HIGHVOLTAGE!
D
ISCONNECT
ALL
POWER
BEFORE
SERVICING
OR
INSTALLING
THIS
UNIT
.M
ULTIPLE
POWER
SOURCES
MAY
BE
PRESENT
.F
AILURE
TO
DO
SO
MAY
CAUSE
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
.
WARNING
HIGHVOLTAGE!
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
DO
NOT
TAMPER
WITH
FACTORY
WIRING
.T
HE
INTERNAL
POWER
AND
CONTROL
WIRING
OF
THESE
UNITS
ARE
FACTORY
‐
INSTALLED
AND
HAVE
BEEN
THOROUGHLY
TEST
PRIOR
TO
SHIPMENT
.C
ONTACT
YOUR
LOCAL
REPRESENTATIVE
IF
ASSISTANCE
IS
REQUIRED
.
WARNING
T
O
PREVENT
DAMAGE
TO
THE
WIRING
,
PROTECT
WIRING
FROM
SHARP
EDGES
.F
OLLOW
NATIONAL
ELECTRICAL
CODE
AND
ALL
LOCAL
CODES
AND
ORDINANCES
.D
O
NOT
ROUTE
WIRES
THROUGH
REMOVABLE
ACCESS
PANELS
.
CAUTION