should be at least 4 in. above the highest expected water and runoff
levels. Do not use unit if it has been under water.
IV.
SELECT AND INSTALL DUCTWORK
The design and installation of the duct system must be in
accordance with the standards of the NFPA (National Fire Protec-
tion Association) for installation of nonresidence-type air condi-
tioning and ventilating systems, NFPA90A or residence type,
NFPA90B; and/or local codes and residence-type, NFPA90B;
and/or local codes and ordinances. Select and size ductwork,
supply-air registers and return-air grilles according to ASHRAE
(American Society of Heating, Refrigeration, and Air Condition-
ing Engineers) recommendations. The unit has duct flanges on the
supply- and return-air openings on the side of the unit. See Fig. 2-5
for connection sizes and locations. When designing and installing
ductwork, consider the following:
CAUTION:
When connecting ductwork to units, do not
drill deeper than 1/2–in. in shaded area shown or coil may
be damaged.
1. All units should have field-supplied filters or accessory
Fig. 5— 657A036-060 Unit Dimensions (with base rails)
UNIT
ELECTRICAL CHARACTERISTICS
UNIT WEIGHT
CORNER WT
LB/KG
CENTER OF GRAVITY
IN/MM
lb.
kg
A
B
C
D
X
Y
Z
657A036
208/230-1-60
336
153
51/23
108/49
86/39
91/41
21.0/535
20.5/521
16.4/418
657A042
208/230-1-60
336
153
51/23
108/49
86/39
91/41
21.0/535
20.5/521
16.4/418
657A048
208/230-1-60
379
172
94/43
86/39
118/54
81/37
19.6/498.3
20.6/524
17.3/440
657A060
208/230-1-60,
393
179
97/44
90/41
121/55
85/39
19.5/497.3
20.6/524
17.3/440
C95006
—5—
