Carrier 48AW, 48EW, 48EY024-068, 48AY020-060, 48EK, 48AK, 48AJ, 48EJ specifications Unit

Table 8 — Electrical Data — 48EJ,EK,EW,EY Units (cont)

UNIT	NOMNAL	VOLTAGE		COMPRESSOR					OFM			IFM	POWER		COMBUSTION	POWER SUPPLY
SIZE	VOLTAGE	RANGE		No. 1		No. 2							EXHAUST		FAN MOTOR
48EJ,EK,	(3 Ph,
		Min	Max	RLA	LRA	RLA	LRA	Qty	Hp	FLA	Hp	FLA	FLA	LRA	FLA	MCA	MOCP*
EW,EY	60 Hz)
										(ea)
											25	74.6/	—	—	1.44	321.5/314.9	400/400
												68.0	35.4	62.4	1.44	356.9/350.3	450/450
	208/230	187	254	106.4	506	82.1	446	6	1	5.3	30	88.0/	—	—	1.44	334.9/326.9	400/400
												80.0	35.4	62.4	1.44	370.3/362.3	450/450
											40	114.0/	—	—	1.44	360.9/350.9	450/450
												104.0	35.4	62.4	1.44	396.3/386.3	500/450
											25	34.0	—	—	0.75	159.5	200
													18.9	35.4	0.75	178.4	225
064	460	414	508	52.6	253	43.6	223	6	1	2.7	30	40.0	—	—	0.75	165.5	200
													18.9	35.4	0.75	184.4	225
											40	52.0	—	—	0.75	177.5	225
													18.9	35.4	0.75	196.4	225
											25	27.0	—	—	0.75	126.5	150
													18.9	35.4	0.75	145.4	175
	575	518	632	40.4	176	34.6	164	6	1	2.4	30	32.0	—	—	0.75	131.5	150
													18.9	35.4	0.75	150.4	175
											40	41.0	—	—	0.75	140.5	175
													18.9	35.4	0.75	159.4	175
											25	74.6/	—	—	1.44	345.8/339.2	450/400
												68.0	35.4	62.4	1.44	381.2/374.6	450/450
	208/230	187	254	106.4	506	106.4	506	6	1	5.3	30	88.0/	—	—	1.44	359.2/351.2	450/450
												80.0	35.4	62.4	1.44	394.6/386.6	500/450
											40	114.0/	—	—	1.44	385.2/375.2	450/450
												104.0	35.4	62.4	1.44	420.6/410.6	500/500
											25	34.0	—	—	0.75	168.5	200
													18.9	35.4	0.75	187.4	225
068	460	414	508	52.6	253	52.6	253	6	1	2.7	30	40.0	—	—	0.75	174.5	225
													18.9	35.4	0.75	193.4	225
											40	52.0	—	—	0.75	186.5	225
													18.9	35.4	0.75	205.4	250
											25	27	—	—	0.75	132.3	150
													18.9	35.4	0.75	151.2	175
	575	518	632	40.4	176	40.4	176	6	1	2.4	30	32	—	—	0.75	137.3	175
													18.9	35.4	0.75	156.2	175
											40	41	—	—	0.75	146.3	175
													18.9	35.4	0.75	165.2	200

	LEGEND
FLA	— Full Load Amps
HACR — Heating, Air Conditioning and Refrigeration
IFM	— Indoor (Evaporator) Fan Motor
LRA	— Locked Rotor Amps
MCA — Minimum Circuit Amps
MOCP— Maximum Overcurrent Protection
NEC	— National Electrical Code	or
OFM — Outdoor (Condenser) Fan Motor
RLA	— Rated Load Amps

*Fuse or HACR circuit breaker per NEC.

NOTES:

1.In compliance with NEC requirements for multimotor and combi- nation load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. The Canadian units may be fuse or circuit breaker.

2.Unbalanced 3-Phase Supply Voltage

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

% Voltage imbalance

= 100 x	max voltage deviation from average voltage
	average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

Average Voltage = 452 + 464 + 455 3

1371

=

3

= 457

Determine maximum deviation from average voltage. (AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v (AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent 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.

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