Carrier specifications Wire Field Power Supply Connections, Chassis Electrical Data 50VS Unit

Step 6 — Wire Field Power Supply Connections

WARNING

Electrical shock can cause personal injury or death. When installing or servicing system, always turn off main power to system. There may be more than one disconnect switch.

ELECTRICAL–LINE VOLTAGE — All field-installed wir- ing, including electrical ground, must comply with the National Electrical Code (NEC) as well as all applicable local codes. Re- fer to Tables 4 and 5 for fuse sizes. Refer to Table 6 for blower speed wiring. See Fig. 10 for field connections or the electrical diagram located on the back of the electrical compartment front panel. All electrical connections must be made by the installing (or electrical) contractor. All final electrical connections must be made with a length of flexible conduit to minimize vibration and sound transmission to the building.

General Line Voltage Wiring — Be sure the available power is the same voltage and phase shown on the unit

serial plate. Line and low voltage wiring must be done in accordance with local codes or the NEC, whichever is appli- cable.

POWER CONNECTION

Units Equipped with Disconnect — Connect incoming line voltage to the disconnect switch and ground wire to the ground lug provided inside the electrical compartment.

Units without Disconnect — Line voltage connection is made by connecting the incoming line voltage wires to the line side(s) of the contactor.

208/230-VAC OPERATION — All commercial 208/230-v units are factory wired for 208-v single-phase operation. For 230-v single-phase operation the primary voltage to the trans- former must be changed. Remove the red lead from the com- pressor contactor capping it with a wire nut and connecting the orange 230-vac lead wire from the transformer to the compres- sor contactor.

NOTE: Failure to change the primary voltage lead when using 240-vac line voltage may result in electrical component dam- age and intermittent system failure.

→											Table 4 — Cabinet Electrical Data — 50VS Unit
							SUPPLY					MOTOR				FAN MOTOR										MIN CIRCUIT
	UNIT					VOLTAGE						VOLTAGE									MOTOR POWER (W)										MAX FUSE SIZE (A)
																	FLA (A)										AMP
							V-Hz-Ph					V-Hz-Ph
	50VSA,B				208/230-1-60						208/230-1-60						0.30					130					6.2					15
	50VSC,D				208/230-1-60						208/230-1-60						0.40					142					8.3					15
	50VSE,F				208/230-1-60						208/230-1-60						0.88					180					13.3					25
	50VSG,H				208/230-1-60						208/230-1-60						1.18					240					13.6					25
	50VSI,J				208/230-1-60						208/230-1-60						1.60					304					15.1					25
	50VSK,L				208/230-1-60						208/230-1-60						1.80					368					22.4					35
	50VSM,N				208/230-1-60						208/230-1-60						2.06					442					25.3					40
	LEGEND
	FLA — Full Load Amps
→											Table 5 — Chassis Electrical Data — 50VS Unit
	UNIT			SUPPLY					MIN		MAX FUSE		COMPRESSOR					COMPRESSOR				COOLING		MAX COOLING					HEATING			MAX HEATING
				VOLTAGE				CIRCUIT				SIZE		(LRA)					(RLA)			CURRENT			CURRENT			CURRENT				CURRENT
				V-Hz-Ph					AMP			(A)										(A)				(A)				(A)		(A)
	50VSA,B			208/230-1-60					6.2		15			20					4.7			3.27				4.0			3.75			4.60
	50VSC,D			208/230-1-60					8.3		15			27					6.3			4.40				4.0			5.25			6.25
	50VSE,F			208/230-1-60					13.3		25			42					9.9			6.30				5.4			7.07			8.80
	50VSG,H			208/230-1-60					13.6		25			42					9.9			6.70				7.6			7.50			9.00
	50VSI,J			208/230-1-60					15.1		25			46					10.8			8.20				8.0			9.20			11.70
	50VSK,L			208/230-1-60					22.4		35			70					16.5			11.00				10.4			12.20			14.10
	50VSM,N			208/230-1-60					25.3		40			79					18.6			12.70				16.0			13.65			16.50
	LEGEND
	LRA — Locked Rotor Amps
	RLA — Rated Load Amps
								Table 6 — 50VS Unit Blower Performance and Speed Wiring
	UNIT	FAN SPEED					RATED			MIN									EXTERNAL STATIC PRESSURE (in. wg)
		AND WIRING					CFM			CFM		0	0.01		0.05		0.1			0.15		0.2	0.25			0.3	0.35			0.4		0.45	0.5
	50VSA,B	LOW (Black)					360			260		361	358		341		321			294		268	235			177
				HI (Blue)								316	310		294		278			262		233	206
	50VSC,D	LOW (Blue)					420			300		424	421		398		376			350		315	280			240
				HI (Red)								361	358		341		321			305
	50VSE,F	LOW (Black)					540			390		551	549		535		521			509		490	476			460	441			420		400
				HI (Blue)								470	465		455		439			428		412	397
	50VSG,H	LOW (Blue)					630			455		626	622		604		592			577		561	548			530	513			495		476
				HI (Red)								551	549		535		521			509		490	476			460
	50VSI,J	LOW (Orange)					820			600		821	817		814		812			802		790	775			747	684			654		621
			HI (Brown)									768	765		762		759			751		742	722			683	653			625
	50VSK,L	LOW (Black)					1080			780		1081	1075		1070		1049			1024		931	880			843	801
				HI (Blue)								956	951		942		928			911		835	809
	50VSM,N	LOW (Blue)					1220			850		1222	1219		1194		1160			1129		1088	1057			1017	961
				HI (Red)								1102	1096		1091		1070			1044		949	897			860

NOTE: Operation not recommended in shaded area.

13 311