Carrier 50TFQ008-012 specifications OFM IFM Heat SIZE† Unit Size

Table 3B — Electrical Data (Units With Electrical Convenience Outlet) (cont)

			VOLTAGE		COMPRESSOR					ELECTRIC				POWER SUPPLY					DISCONNECT
50TFQ	NOMINAL	IFM	RANGE			(each)		OFM	IFM		HEAT*									SIZE†
UNIT SIZE	V-PH-Hz	TYPE	Min	Max	RLA		LRA	FLA	FLA	Nominal		FLA		MCA		MOCP		FLA			LRA
										kW**
										—		—		52.1/ 52.1		60/ 60††		55/ 55			300/300
										7.8/10.4		21.7/	25.0	79.2/	83.4	80/	90	80/	84		322/325***
		STD	187	254	17.2		124.0	1.4	5.8	12.0/16.0		33.3/	38.5	93.7/100.2		100/110		93/	99		333/338***
										24.0/32.0		66.6/	77.0	135.4/148.4		150/150		132/144			366/377***
										31.8/42.4		88.3/102.0		162.5/179.6		175/200		157/172			388/402***
										37.6/50.0		104.4/120.3		182.6/172.4		200/200		175/193			404/420***
										—		—		53.8/ 53.8		60/ 60††		57/ 57			319/319
										7.8/10.4		21.7/	25.0	80.9/	85.1	90/	90	82/	86		341/344***
	208/230-3-60	ALT	187	254	17.2		124.0	1.4	7.5	12.0/16.0		33.3/	38.5	95.4/101.9		100/110		95/101			352/357***
										24.0/32.0		66.6/	77.0	137.1/150.1		150/175		134/145			385/396***
										31.8/42.4		88.3/102.0		164.2/181.3		175/200		158/174			407/421***
										37.6/50.0		104.4/120.3		184.3/174.1		200/200		177/195			423/439***
										—		—		61.3/ 61.3		70/ 70		66/ 66			367/367
										7.8/10.4		21.7/	25.0	88.4/	92.6	90/100		91/	94		389/392***
		HIGH-STATIC	187	254	17.2		124.0	1.4	15.0	12.0/16.0		33.3/	38.5	102.9/109.4		110/110		104/110			400/405***
										24.0/32.0		66.6/	77.0	144.6/157.6		150/175		142/154			433/444***
										31.8/42.4		88.3/102.0		171.7/188.8		175/200		167/183			455/459***
										37.6/50.0		104.4/120.3		191.8/181.6		200/200		186/204			471/487***
										—		—		25.5		30††		27			145
										16.5		19.8		50.3		60††		50			165
		STD	414	508	8.6		59.6	0.7	2.6	27.8		33.4		67.3		70		65			178
										33.0		39.7		75.2		80		73			185
										41.7		50.2		88.3		90		85			195***
012										50.0		60.1		85.6		90		96			205***
(10 Tons)										—		—		26.3		30††		28			185
										16.5		19.8		51.1		60††		51			204
	460-3-60	ALT	414	508	8.6		59.6	0.7	3.4	27.8		33.4		68.1		70		66			218
										33.0		39.7		76.0		80		73			224
										41.7		50.2		89.1		90		86			235***
										50.0		60.1		86.4		90		97			245***
										—		—		30.3		35††		32			179
										16.5		19.8		55.1		60††		55			198
		HIGH-STATIC	414	508	8.6		59.6	0.7	7.4	27.8		33.4		72.1		80		71			212
										33.0		39.7		80.0		80		78			218
										41.7		50.2		93.1		100		90			229***
										50.0		60.1		90.4		100		102			239***
										—		—		20.5		25††		22			120
		STD	518	632	6.9		49.4	0.7	2.6	17.0		17.1		41.8		45††		41			137
										34.0		34.1		63.1		70		61			154
										51.0		51.2		71.7		80		80			171***
										—		—		21.1		25††		22			151
	575-3-60	ALT	518	632	6.9		49.4	0.7	3.4	17.0		17.1		42.5		45††		42			168
										34.0		34.1		63.7		70		62			185
										51.0		51.2		72.3		80		81			202***
										—		—		24.3		25††		26			146
		HIGH-STATIC	518	632	6.9		49.4	0.7	7.4	17.0		17.1		45.7		50††		46			163
										34.0		34.1		66.9		70		65			180
										51.0		51.2		75.5		80		85			198***

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

*Heaters are field installed only.

†Used to determine minimum disconnect size per NEC.

**Heater capacity (kW) is based on heater voltage of 208 v, 240 v, 480 v, and 575 v. If power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly.

††Fuse or HACR circuit breaker.

***Optional disconnect switch is unavailable.

NOTES:

1.In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device 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 percent of voltage imbalance.

%Voltage Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

452 + 464 + 455

Average Voltage =

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.

% Voltage Imbalance = 100 x	7
	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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