173858-YIM-A-0306
4
Unitary Products Group
should meet local codes and unit weight. Do not tie the
slab to the building foundation.
4.
For roof top installation, be sure the structure will support
the weight of the unit plus any field installed components.
Unit must be installed on a level roof curb or appropriate
angle iron frame providing adequate support under the
compressor/condenser section.
5.
Maintain level tolerance of unit to 1/8" maximum.
RIGGING OR HANDLING
Care must be exercised when moving the unit. Do not
remove any packaging until the unit is near the place of
installation. Rig unit with slings placed under the unit.
Spreader bars of sufficient length should be used across the
top of the unit.
BEFORE LIFTING A UNIT, MAKE SURE THAT ITS WEIGHT
IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT
WILL LIFT EVENLY.
Units may also be moved or lifted with a fork-lift. Slotted
openings in the skid are provided for this purpose. Forks
must pass completely through the base.
Refer to Table 2 for unit weights and to Figure 1 for approxi-
mate center of gravity.
CLEARANCES
All units require certain clearances for proper operation and
service. Refer to Figure 3 for the clearances required for
combustion, construction, servicing and proper unit opera-
tion.
DUCT WORK
These units are adaptable to downflow use as well as rear
supply and return air duct openings. To convert to downflow,
use the following steps:
1.
Remove the duct covers found in the bottom return and
supply air duct openings. There are four (4) screws
securing each duct cover (save these screws to use
later).
2.
Install the duct covers, removed in step one, to the rear
supply and return air duct openings. Secure with the four
(4) screws used in step one.
3.
Seal the duct covers with silicone caulking.
Downflow units must have an L-shaped supply duct without
any outlets or registers located directly below the supply out-
let of the unit.
TABLE 2: UNIT WEIGHTS AND CENTERS OF GRAVITY
SIZE
(Tons)
MODEL
UNIT WEIGHT
kg (lb)
CENTER OF GRAVITY
mm (in.)
4 POINT LOAD LOCATION
kg (lb)
Shipping
Operating
X
Y
A
B
C
D
036
(3.0)
DEB
150 (330)
147 (325)
610 (24)
597 (23.5)
35 (77)
35 (78)
39 (85)
38 (84)
048
(4.0)
DEB
179 (395)
177 (390)
610 (24)
597 (23.5)
42 (93)
43 (94)
46 (102)
46 (101)
060
(5.0)
DEB
222 (490)
220 (485)
572 (22.5)
610 (24)
57 (125)
51 (112)
53 (117)
60 (131)
FIGURE 1 - CENTER OF GRAVITY
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Do not permit overhanging structures or shrubs to
obstruct the condenser air discharge outlet.
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