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 29 Dia [51] Power Supply Knockout
Fig. 2 — Base Unit Dimensions
—2—
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