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iNSTALLATiON
IMPORTANT:
Do not lift the unit without test lifting for
balance and rigging.
Do not lift the unit in windy conditions
or above personnel.
Do not lift the unit by attaching
a
clJvus, hooks,
pins, or bolts to the unit casing, casing
hardware, corner lugs, angles, tabs, or flanges.
Failure to
observe these warnings may result in equipment damage.
4. When the curb and air ducts have been properly installed, the
unit is ready to be hoisted to the roof and set in position.
IMPORTANT:
"Spreader
Bars" must be used when hoist-
ing the unit.
5 IMPORTANT:
The unit must be lowered into position. The
P.V.C. rubber tape on the curb flange permits the unit to be
repositJoned
if required without destroying the P.V.C. rub-
ber seals affixed
to the mounting curb.
©
PLACING THE UNiT ON A MOUNTING CURB
1. The unit is designed with a perimeter drip lip that is lower that
the unit base bar, see Figure 7, inset A.
2.
Position the unit drip lip down over and in contact with the
outside corner of the curb, as illustrated in Figure 8, insert A.
Continue to lower the unit on top of the curb, with the unit drip
lip astraddle and in contact with both the end and side rail of the
curb. The unit should now rest on top of the curb.
3. Take the two (2) hold-down brackets shipped with the curb and
secure the unit to the curb with hold-down brackets as illustrated
in Figure 8, insert A.
SPREADER BARS
OUTDOOR
COIL
END
OF UNIT
iIBn
DRIP_
BA_ L_OO,
A
DIMPLE
LIFTING LUGS
NOTE:
THE
INNER
PERIMETER
OF THE
DRIP
LIP ON ALL UNITS
SHOULD
BE FLUSH
WITH
THE OUTER
PERIMETER
OF THE
CURB ON THE TWO SIDES SHOWN
HERE
SEE FIGURE
2 FOR
THE LOCATION
OF THE UNIT OVERHANG
ON THE YCZO36-O60F
MODELS
BASE
OF
UNIT
DRIP
LIP ON
REST
ON TOP OF
PERIMETER
OF UNIT
CURB
RAILS
CURB
CORNER
J
®
FLANGE
OF
CURB
EXISTING
SHEET
METAL
I
SCREW
HOLD-DOWN
BRACKET
WITH
CURB
!
Page 9
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