7
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, ductwork
should be attached to the curb prior to installing the unit. Ductwork
dimensions are shown in Roof Curb Installation Instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with the Na-
tional 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.
W
HEN
UNIT
IS
SUSPENDED
,
BOARDS
AND
SHIPPING
BRACE
WILL
DROP
WHEN
SCREWS
ARE
REMOVED
. T
O
PREVENT
PERSONAL
INJURY
, STAND CLEAR.
R
EMOVE
FORK
HOLE
BRACKETS
,
BOARDS
AND
SHIPPING
BRACE
FROM
BOTTOM
OF
UNIT
BEFORE
PLACING
UNIT
ONTO
CURB
.
CAUTION
To assist in determining rigging requirements, unit weights are
shown as follows:
COMPRESSOR 1
COMPRESSOR 2
CG
E
V
A
P
O
R
A
T
O
R
C
O
IL
S
A
B
C
X
D
Y
CORNER & CENTER OF GRAVITY LOCATIONS
Corner Weight - A
582
645
Corner Weight - B
475
527
Corner Weight - C
565
589
Corner Weight - D
461
481
Unit Shipping Weight
2198
2357
Unit Operating Weight
2083
2242
X (Inches)
65"
63"
Y (Inches)
40"
40"
DATA
DCG Weights
(lbs)
15 Tons
20 Tons
NOTE: These weights are without accessories installed.
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 align-
ment and orientation of supply and return openings with duct.
Содержание DCG Series
Страница 29: ...27 APPENDIX D WIRING DIAGRAMS...