Bryant 551B Series, Installation, Start-Up And Service Instructions Manual

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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
8
-6 1 ⁄
2
9
[470] up from the bottom of the base
rail.
UNIT
STD. UNIT WEIGHT
VARISLIDE™
ECONOMIZER WEIGHT
CORNER WEIGHT (A) CORNER WEIGHT (B) CORNER WEIGHT (C) CORNER WEIGHT (D)
Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg
551B036 435 197 34 15.4 124 56.2 106 48.1 95 43.1 110 49.9
551B048 445 202 34 15.4 127 57.6 108 49.0 97 44.0 113 51.3
551B060 465 211 34 15.4 133 60.3 113 51.3 101 45.8 118 53.5
551B072 520 236 34 15.4 149 67.6 127 57.6 112 50.8 132 59.9
CONNECTION SIZES
A 1 3 ⁄
8
9
dia. [35] field power supply hole
B 2
9
dia. [51] power supply knock-out
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 1 ⁄
2
9
dia. [64] power supply knock-out
Fig. 2 — Base Unit Dimensions
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