Bryant 581B installation instructions Ð Base Unit Dimensions

	STANDARD		VARISLIDE™		CORNER		CORNER		CORNER		CORNER
UNIT	UNIT		ECONOMIZER		WEIGHT		WEIGHT		WEIGHT		WEIGHT
581B	WEIGHT		WEIGHT		``A''		``B''		``C''		``D''
	Lb	Kg	Lb	Kg	Lb	Kg	Lb	Kg	Lb	Kg	Lb	Kg
036	530	240	34	15.4	127	57.6	122	55.3	138	62.6	143	64.9
048	540	245	34	15.4	129	58.5	124	56.2	141	64.0	146	66.2
060	560	254	34	15.4	134	60.8	129	58.5	146	66.2	151	68.5
072	615	279	34	15.4	147	66.7	142	64.4	160	72.6	166	75.3

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of Gravity.

3. Direction of air¯ow.

4.On vertical discharge units, ductwork to be attached to accessory roof curb only. For horizontal discharge units ®eld-supplied flanges should be attached to horizontal discharge openings, and all duct- work should be attached to the ¯anges.

5.Minimum clearance (local codes or jurisdiction may prevail):

a.Between unit, ¯ue side and combustible surfaces, 48 inches.

b.Bottom of unit to combustible surfaces (when not using curb) 1 inch. Bottom of base rail to combustible surfaces (when not using curb) 0 inches.

c.Condenser coil, for proper air¯ow, 36 in. one side, 12 in. the other. The side getting the greater clearance is optional.

d.Overhead, 60 in. to assure proper condenser fan operation.

e.Between units, control box side, 42 in. per NEC (National Electrical Code).

f.Between unit and ungrounded surfaces, control box side, 36 in. per NEC.

g.Between unit and block or concrete walls and other grounded surfaces, control box side, 42 in. per NEC.

h.Horizontal supply and return end, 0 inches.

6.With the exception of the clearance for the condenser coil and combustion side as stated in Note 5a, b, and c, a removable fence or barricade requires no clearance.

7.Units may be installed on combustible ¯oors made from wood or Class A, B, or C roof covering material if set on base rail.

8.The vertical center of gravity is 1 -6 [457] up from the bottom of the base rail.

	CONNECTION SIZES
A	13¤8		Dia. [35]		Field Power Supply Hole
B	2 Dia. [51] Power Supply Knock-Out
C	13¤4		Dia. [44]		Charging Port Hole
D	7¤8		Dia. [22] Field Control Wiring Hole
E	3¤4	-14		NPT Condensate Drain
F	1¤2	-14		NPT Gas Connection
G	21¤2		Dia. [64]		Power Supply Knock-Out

BOTTOM POWER CHART,

THESE HOLES REQUIRED FOR USE WITH ACCESSORY PACKAGES Ð CRBTMPWR001A00 (1¤2 , 3¤4 )

THREADED	WIRE	REQUIRED SIZES
CONDUIT
	USE	(MAXIMUM)
SIZE
1¤2	24 V	7¤8	[22.2]
3¤4	Power	11¤8	[28.4]

Fig. 2 Ð Base Unit Dimensions

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