7
removal, to allow service access and to insure proper venti-
lation and condenser airflow. The unit must not be installed
beneath any obstruction. The unit should be installed re-
mote from all building exhausts to inhibit ingestion of exhaust
air into the unit fresh air intake.
INSULATED
PANELS
ROOF CURB INSTALLATION
ROOF CURB POST-INSTALLATION
CHECKS
After installation, check the top of the curb, duct connection
frame and duct flanges to make sure gasket has been ap-
plied properly. Gasket should be firmly applied to the top of
the curb perimeter, duct flanges and any exposed duct con-
nection frame. If gasket is loose, re-apply using strong
weather resistant adhesive.
P
ROTRUSION
Inspect curb to ensure that none of the utility services (elec-
tric) routed through the curb protrude above the curb.
I
F
PROTRUSIONS
EXIST
,
DO
NOT
ATTEMPT
TO
SET
UNIT
ON
CURB
.
I
NFORMATION
SHOWN
.
CAUTION
ROOF TOP DUCT CONNECTIONS
Install all duct connections on the unit before placing the unit
on rooftop.
RIGGING DETAILS
T
O
PREVENT
PROPERTY
DAMAGE
,
THE
UNIT
SHOULD
REMAIN
IN
AN
UPRIGHT
POSITION
DURING
ALL
RIGGING
AND
MOVING
OPERATIONS
.
T
O
FACILITATE
LIFTING
AND
MOVING
WHEN
A
CRANE
IS
USED
,
PLACE
THE
UNIT
IN
AN
ADEQUATE
CABLE
SLING
.
WARNING
D
O
NOT
LIFT
UNITS
TWO
AT
A
TIME
.
P
ROVISIONS
FOR
FORKS
HAVE
BEEN
INCLUDED
IN
THE
UNIT
BASE
FRAME
.
M
INIMUM
FORK
LENGTH
IS
72”
TO
PREVENT
DAMAGE
TO
THE
UNIT
.
CAUTION
Provisions for forks have been included in the unit base frame.
No other fork locations are approved.
T
O
PREVENT
POSSIBLE
EQUIPMENT
DAMAGE
,
PROPERTY
DAMAGE
,
PERSONAL
INJURY
OR
DEATH
,
THE
FOLLOWING
BULLET
POINTS
MUST
BE
OBSERVED
WHEN
INSTALLING
THE
UNIT
.
WARNING
•
Unit must be lifted by the four lifting holes located at
the base frame corners.
•
Lifting cables should be attached to the unit with
shackles.
•
The distance between the crane hook and the top of
the unit must not be less than 60”.
•
Two spreader bars must span over the unit to prevent
damage to the cabinet by the lift cables. Spreader
bars must be of sufficient length so that cables do not
come in contact with the unit during transport.
Remove wood struts mounted beneath unit base
frame before setting unit on roof curb. These struts
are intended to protect unit base frame from fork lift
damage. Removal is accomplished by extracting the
sheet metal retainers and pulling the struts through
the base of the unit. Refer to rigging label on the unit.
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.
