Carrier 48/50HJ004-014 specifications 68.0 420

Table 1G — Electrical Data (COBRA™ Energy Recovery 48HJ008-014 Units with 62AQ300)

	NOMINAL	IFM	CONV	62AQ	POWER SUPPLY		DISCONNECT SIZE*
UNIT						FUSE OR
	V-PH-Hz	TYPE	OUTLET	FLA	MCA		FLA	LRA
						HACR BKR
		STD	NO	29.8	68.0	80	75	420
	208/230-3-60	STD	YES	29.8	74.0	80	80	425
		HIGH STATIC	NO	29.8	71.1	80	78	445
48HJ008		HIGH STATIC	YES	29.8	77.1	80	84	449
		STD	NO	15.8	35.0	40	38	211
	460-3-60	STD	YES	15.8	37.7	40	41	213
		HIGH STATIC	NO	15.8	36.4	40	40	224
		HIGH STATIC	YES	15.8	39.1	45	43	226
		STD	NO	29.8	70.0	80	77	454
	208/230-3-60	STD	YES	29.8	76.0	80	82	459
		HIGH STATIC	NO	29.8	73.1	80	80	479
48HJ009		HIGH STATIC	YES	29.8	79.1	80	86	483
		STD	NO	15.8	37.3	40	41	233
	460-3-60	STD	YES	15.8	40.0	45	43	235
		HIGH STATIC	NO	15.8	38.7	45	42	246
		HIGH STATIC	YES	15.8	41.4	45	45	248
		STD	NO	29.8	82.8	90	90	519
	208/230-3-60	STD	YES	29.8	88.8	100	96	523
		HIGH STATIC	NO	29.8	87.2	100	95	542
48HJ012		HIGH STATIC	YES	29.8	93.2	100	101	547
		STD	NO	15.8	40.7	45	44	261
	460-3-60	STD	YES	15.8	43.4	45	47	263
		HIGH STATIC	NO	15.8	43.3	50	47	272
		HIGH STATIC	YES	15.8	46.0	50	50	274
	208/230-3-60	STD	NO	29.8	90.4	100	98	604
		STD	YES	29.8	96.4	100	104	609
48HJ014
	460-3-60	STD	NO	15.8	44.9	50	49	297
		STD	YES	15.8	47.6	50	51	299

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

UL — Underwriters’ Laboratories

*Used to determine minimum disconnect per NEC.

†Single point box CRSINGLE017A00 is part of base unit.

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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