UNIT
STD UNIT
ECONOMIZER
CORNER
CORNER
CORNER
CORNER
‘‘H’’
‘‘J’’
‘‘K’’
WEIGHT
WEIGHT
WEIGHT (A)
WEIGHT (B)
WEIGHT (C)
WEIGHT (D)
Lb
Kg
Lb
Kg
Lb
Kg
Lb
Kg
Lb
Kg
Lb
Kg
In.
mm
In.
mm
In.
mm
548C090
840
381
44
20
182
83
156
71
231
105
271
123
24
7
⁄
8
632
41
5
⁄
16
1050
33
11
⁄
16
856
548C120
940
426
44
20
204
93
174
79
259
117
303
137
14
7
⁄
8
378
49
5
⁄
16
1253
36
3
⁄
8
924
NOTES:
1. Dimensions in [
] are in millimeters.
2.
Center of gravity.
3.
Direction of airflow.
4. Ductwork to be attached to accessory roof curb only.
5. Minimum clearance (local codes or jurisdiction may prevail):
a. Bottom to combustible surfaces (when not using curb) 1 inch.
b. Outdoor coil, for proper airflow, 915 mm (36 in.) 1 side, 305 mm (12
in.) the other. The side getting the greater clearance is optional.
c. Overhead, 1525 mm (60 in.) to assure proper outdoor fan
operation.
d. Between units, control box side, 1065 mm (42 in.).
e. Between unit and ungrounded surfaces, control box side, 915 mm
(36 in.).
f. Between unit and block or concrete walls and other grounded sur-
faces, control box side, 1065 mm (42 in.).
g. Horizontal supply and return end, zero mm (zero in.).
6. With the exception of the clearance for the outdoor coil as stated in
Notes 5b and c, a removable fence or barricade requires no clearance.
CONNECTION SIZES
A
1
3
⁄
8
9
Dia [35] Field Power Supply Hole
B
2
1
⁄
2
9
Dia [64] Power Supply Knockout
C
1
3
⁄
4
9
Dia [44] Charging-Port Hole
D
7
⁄
8
9
Dia [22] Field Control Wiring Hole
E
3
⁄
4
9
-14 NPT Condensate Drain
F
2
9
Dia [51] Power Supply Knockout
Fig. 2 — Base Unit Dimensions
—2—
