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STD. UNIT WEIGHT
UNIT
Lb
Kg
551B036
435
197
551B048
445
202
551B060
465
211
551B072
520
236
CONNECTION SIZES
A
1
3
⁄
dia. [35] field power supply hole
8
B
2 dia. [51] power supply knock-out
C
1
⁄
dia. [44] charging port hole
3
4
D
7
⁄
dia. [22] field control wiring hole
8
E
3
⁄
-14 NPT condensate drain
4
F
2
1
⁄
dia. [64] power supply knock-out
2
VARISLIDE™
CORNER WEIGHT (A)
ECONOMIZER WEIGHT
Lb
Kg
Lb
34
15.4
124
34
15.4
127
34
15.4
133
34
15.4
149
Fig. 2 — Base Unit Dimensions
CORNER WEIGHT (B)
Kg
Lb
Kg
56.2
106
48.1
57.6
108
49.0
60.3
113
51.3
67.6
127
57.6
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), 0 in., on horizontal
discharge units with electric heat 1 in. clearance to ductwork for 1 ft.
b. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side
getting the greater clearance is optional.
c. Overhead, 60 in. to assure proper condenser fan operation.
d. Between units, control box side, 42 in. per NEC (National Electrical Code).
e. Between unit and ungrounded surfaces, control box side, 36 in. per NEC.
f. Between unit and block or concrete walls and other grounded surfaces, con-
trol box side, 42 in. per NEC.
g. Horizontal supply and return end, 0 inches.
6. With the exception of the clearance for the condenser coil and combustible
surfaces as stated in notes 5a, b, and c, a removable fence or barricade re-
quires no clearance.
7. Units may be installed on combustible floors made from wood or class A, B, or
C roof covering material.
8. The vertical center of gravity is 1 -6
rail.
—2—
CORNER WEIGHT (C)
CORNER WEIGHT (D)
Lb
Kg
Lb
95
43.1
110
97
44.0
113
101
45.8
118
112
50.8
132
⁄
[470] up from the bottom of the base
1
2
Kg
49.9
51.3
53.5
59.9
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