Carrier 48HJD005-007 C - 48HJ High-Static Motor Units Without Electrical Convenience Outlet

Table 2C — 48HJ High-Static Motor Units Without Electrical Convenience Outlet

	NOMINAL	VOLTAGE		COMPRESSOR				COMBUSTION	POWER		MINIMUM UNIT
UNIT						OFM	IFM				DISCONNECT
	VOLTAGE	RANGE		(each)				FAN MOTOR	SUPPLY
48HJ												SIZE*
	(V-Ph-Hz)
		Min	Max	RLA	LRA	FLA	FLA	RLA	MCA	MOCP†	FLA		LRA
	208/230-3-60	187	254	10.3	77.0	0.7	5.8	0.6	19.4/19.4	25/25	19/19		120/120
004	460-3-60	414	508	5.1	39.0	0.4	2.6	0.3	9.4	15	9		60
	575-3-60	518	632	4.2	31.0	0.4	2.6	0.3	7.7	15	8		48
	208/230-3-60	187	254	13.5	99.0	0.7	5.8	0.6	23.4/23.4	30/30	23/23		142/142
005	460-3-60	414	508	7.4	49.5	0.4	2.6	0.3	12.3	15	12		71
	575-3-60	518	632	5.8	40.0	0.4	2.6	0.3	9.7	15	9		57
	208/230-3-60	187	254	17.3	123.0	1.5	7.5	0.6	30.6/30.6	35/35	30/30		187/187
006	460-3-60	414	508	9.0	62.0	0.8	3.4	0.3	15.5	20	15		94
	575-3-60	518	632	7.1	50.0	0.8	3.4	0.3	12.2	15	12		76
	208/230-3-60	187	254	20.5	156.0	1.4	7.5	0.6	30.6/30.6	35/35	30/30		187/187
007	460-3-60	414	508	9.6	70.0	0.6	3.4	0.3	15.5	20	15		94
	575-3-60	518	632	7.7	56.0	0.6	3.4	0.3	12.2	15	12		76

Table 2D — 48HJ High-Static Motor Units With Electrical Convenience Outlet

	NOMINAL	VOLTAGE		COMPRESSOR				COMBUSTION	POWER		MINIMUM UNIT
UNIT						OFM	IFM				DISCONNECT
	VOLTAGE	RANGE		(each)				FAN MOTOR	SUPPLY
48HJ												SIZE*
	(V-Ph-Hz)
		Min	Max	RLA	LRA	FLA	FLA	RLA	MCA	MOCP†	FLA	LRA
	208/230-3-60	187	254	10.3	77.0	0.7	5.8	0.6	25.4/25.4	30/30	25	124/124
004	460-3-60	414	508	5.1	39.0	0.4	2.6	0.3	12.1	15	12	63
	575-3-60	518	632	4.2	31.0	0.4	2.6	0.3	9.8	15	10	50
	208/230-3-60	187	254	13.5	99.0	0.7	5.8	0.6	29.4/29.4	35/35	29	146/146
005	460-3-60	414	508	7.4	49.5	0.4	2.6	0.3	15.0	20	14	73
	575-3-60	518	632	5.8	40.0	0.4	2.6	0.3	11.8	15	11	59
	208/230-3-60	187	254	17.3	123.0	1.5	7.5	0.6	36.6/36.6	40/40	36	192/192
006	460-3-60	414	508	9.0	62.0	0.8	3.4	0.3	18.2	20	18	96
	575-3-60	518	632	7.1	50.0	0.8	3.4	0.3	14.4	20	14	77
	208/230-3-60	187	254	20.5	156.0	1.4	7.5	0.6	40.5/40.5	45/45	39	224/224
007	460-3-60	414	508	9.6	70.0	0.6	3.4	0.3	18.7	25	18	104
	575-3-60	518	632	7.7	56.0	0.6	3.4	0.3	15.0	20	15	89

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

OFM — Outdoor (Condenser) Fan Motor

RLA — Rated Load Amps

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

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. UL, Canada 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.

= 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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