Bryant 764A installation instructions Ð Electrical Data, Ð10Ð

Table 2 Ð Electrical Data

	NOMINAL	VOLTAGE		COMPRESSOR		OFM	IFM	ELECTRIC HEAT				POWER SUPPLY						DISCONNECT
UNIT		RANGE																	SIZE
	VOLTAGE
564A/764A	(V-Ph-Hz)	Min	Max	RLA	LRA	FLA	FLA	Nominal		FLA		MCA			MOCP			FLA		LRA
								kW*
024								Ð/Ð		Ð/Ð	16.9/ 16.9			20/	20		16/	16
	208/230-1-60	187	254	10.9	61.0	0.9	2.4	3.8/	5.0	18.1/20.8	25.6/		29.0		30/	30		24/	27	68
								7.5/10.0		36.1/41.7	48.1/		55.1		50/	60		44/	51
								Ð/Ð		Ð/Ð	22.9/ 22.9			30/	30		22/	22
030	208/230-1-60	187	254	15.2	69.4	1.5	2.4	3.8/	5.0	18.1/20.8	25.6/		29.0		30/	30		24/	27	79
								7.5/10.0		36.1/41.7	48.1/		55.1		50/	60		44/	51
								11.3/15.0		54.2/62.5	70.7/		81.1		80/	90²		65/	75
								Ð/Ð		Ð/Ð	24.2/ 24.2			30/	30		23/	23
								3.8/	5.0	18.1/20.8	26.1/		29.5		30/	30		24/	27
	208/230-1-60	187	254	15.9	86.0	1.5	2.8	7.5/10.0		36.1/41.7	48.6/		55.6		50/	60		45/	51	96
								11.3/15.0		54.2/62.5	71.2/		81.6		80/	90²		66/	75
036								15.0/20.0		72.2/83.3	93.6/107.7			100/110²				86/	99
								Ð/Ð		Ð/Ð	15.4/ 15.4			20/	20		15/	15
								3.8/	5.0	10.4/12.0	16.5/		18.5		20/	20		15/	17
	208/230-3-60	187	254	8.9	64.5	1.5	2.8	7.5/10.0		20.8/24.1	29.6/		33.6		30/	35		27/	31	74
								11.3/15.0		31.3/36.1	42.6/		48.6		45/	50		39/	45
								15.0/20.0		41.7/48.1	55.6/		63.6		60/	70²		51/	59
								Ð/Ð		Ð/Ð	27.4/ 27.4			35/	35		26/	26
								3.8/	5.0	18.1/20.8	27.4/		29.5		35/	35		26/	27
	208/230-1-60	187	254	18.5	97.6	1.5	2.8	7.5/10.0		36.1/41.7	48.6/		55.6		50/	60		45/	51	107
								11.3/15.0		54.2/62.5	71.2/		81.6		80/	90²		66/	75
042								15.0/20.0		72.2/83.3	93.8/107.7			100/110²				86/	99
								Ð/Ð		Ð/Ð	17.9/ 17.9			25/	25		17/	17
								3.8/	5.0	10.4/12.0	17.9/		18.5		25/	25		17/	17
	208/230-3-60	187	254	10.9	73.0	1.5	2.8	7.5/10.0		20.8/24.1	29.6/		33.6		30/	35		27/	31	83
								11.3/15.0		31.3/36.1	42.6/		48.6		45/	50		39/	45
								15.0/20.0		41.7/48.1	55.6/		63.6		60/	70²		51/	59
								Ð/Ð		Ð/Ð	32.3/ 32.3			40/	40		31/	31
								3.8/	5.0	18.1/20.8	32.3/		32.3		40/	40		31/	31
	208/230-1-60	187	254	21.3	107.0	1.5	4.2	7.5/10.0		36.1/41.7	50.4/		57.3		60/	60		46/	53	121
								11.3/15.0		54.2/62.5	72.9/		83.4		80/	90²		67/	77
048								15.0/20.0		72.2/83.3	95.5/109.4			100/110²				88/101
								Ð/Ð		Ð/Ð	21.1/ 21.1			25/	25		21/	21
								3.8/	5.0	10.4/12.0	21.1/		21.1		25/	25		21/	21
	208/230-3-60	187	254	12.3	73.0	1.5	4.2	7.5/10.0		20.8/24.1	31.3/		35.3		35/	40		29/	32	87
								11.3/15.0		31.3/36.1	44.3/		50.4		45/	60		41/	46
								15.0/20.0		41.7/48.1	57.4/		65.4		60/	70²		53/	60
								Ð		Ð	41.2				50			40
								5.0		20.8	41.2				50			40
	230-1-60	207	254	26.9	128.0	1.4	6.2	10.0		41.7	59.8				60			55		141
								15.0		62.5	85.9				90²			79
								20.0		83.3	111.9				125²			103
								Ð/Ð		Ð/Ð	29.7/ 29.7			35/	35		29/	29
060								3.8/	5.0	10.4/12.0	29.7/		29.7		35/	35		29/	29
	208/230-3-60	187	254	17.7	128.0	1.4	6.2	7.5/10.0		20.8/24.1	33.8/		37.8		35/	40		31/	35	146
								11.3/15.0		31.3/36.1	46.8/		52.9		50/	60		43/	49
								15.0/20.0		41.7/48.1	59.9/		67.9		60/	70²		55/	62
								Ð		Ð	15.2				20			15
								5.0		6.0	15.2				20			15
	460-3-60	414	508	9.0	63.0	0.7	3.2	10.0		12.0	19.0				20			18		71
								15.0		18.0	26.6				30			24
								20.0		24.1	34.1				35			31

LEGEND

EXAMPLE: Supply voltage is 460-3-60

FLA	Ð	Full Load Amps
HACR	Ð	Heating, Air Conditioning and
		Refrigeration
IFM	Ð Indoor (Evaporator) Fan Motor
LRA	Ð	Locked Rotor Amps
MCA	Ð Minimum Circuit Amps
MOCP Ð Maximum Overcurrent Protection

AB = 452 v

BC = 464 v

AC = 455 v

Average voltage =

452 + 464 + 455

3

NEC	Ð	National Electrical Code
OFM	Ð Outdoor (Condenser) Fan Motor
RLA	Ð	Rated Load Amps
*Heater	capacity (kW) is based on heater voltage of 208 v, 240 v, or

480 v. If power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly.

²Fuse or HACR circuit breaker.

NOTES:

1.In compliance with NEC requirements for multimotor and combination load and equipment (refer to NEC Articles 430 and 440), the overcurrent protective de- vice for the unit shall be fuse or HACR breaker.

2.Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percentage of voltage imbalance.

% Voltage Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

= 457

Determine maximum deviation from average voltage: (AB) 457 − 45 2 = 5 v

(BC) 464 − 45 7 = 7 v

(AC) 457 − 45 5 = 2 v

Maximum deviation is 7 v.

Determine percentage of voltage imbalance:

7

% Voltage imbalance = 100 x 457 = 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2% contact your local electric utility company immediately.

Ð10Ð