Carrier 50RTP03-20 specifications Electrical Data

Example: Supply voltage is 460-3-60.

AB = 452 volts

BC = 464 volts

AC = 455 volts

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 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%.

Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electri- cal components.

NOTE: If more than 2% voltage imbalance is present, contact local electric utility.

208-VOLT OPERATION — All 208-230 volt units are factory wired for 208 volts. The transformers may be switched to 230-volt operation (as illustrated on the wiring diagram) by switching the red (208 volt) wire with the orange (230 volt) wire at the L1 terminal.

BLOWER SELECTION — All water source heat pumps are factory set with the appropriate motor and sheave combination to achieve the desired airflow performance. Performance is selected by matching the desired performance with the appro- priate region in Tables 4-12.

NOTE: Factory-installed sheaves are field adjustable. Refer to Tables 4-12 for adjustment points.

Table 3 — Electrical Data

50RTP	VOLTAGE	VOLTAGE	MIN/MAX	BLOWER		COMPRESSOR				MOTOR		TOTAL		MAX
												UNIT	MCA	FUSE/
UNIT SIZE	CODE	(V-Ph-Hz)	VOLTAGE	OPTION	Qty		RLA	LRA	Qty	FLA	Hp
												FLA		HACR
	5	208-3-60	197/254	A,B,C	1		10.4	73.0	1	4.0	1.0	14.4	17.0	25
03	6	460-3-60	414/506	A,B,C	1		5.8	38.0	1	2.0	1.0	7.8	9.3	15
	1	575-3-60	518/633	A,B,C	1		3.8	36.5	1	1.4	1.0	5.2	6.2	15
	5	208-3-60	197/254	A,B,C	1		13.7	83.1	1	4.0	1.0	17.7	21.1	35
				D,E	1		13.7	83.1	1	5.0	1.5	18.7	22.1	35
04	6	460-3-60	414/506	A,B,C	1		6.2	41.0	1	2.0	1.0	8.2	9.8	15
				D,E	1		6.2	41.0	1	2.4	1.5	8.6	10.1	15
	1	575-3-60	518/633	A,B,C	1		4.8	33.0	1	1.4	1.0	6.2	7.4	15
				D,E	1		4.8	33.0	1	1.9	1.5	6.7	7.9	15
	5	208-3-60	197/254	A,B,C	1		15.6	110.0	1	4.0	1.0	19.6	23.5	40
				D,E	1		15.6	110.0	1	5.0	1.5	20.6	24.5	40
05	6	460-3-60	414/506	A,B,C	1		7.8	52.0	1	2.0	1.0	9.8	11.8	15
				D,E	1		7.8	52.0	1	2.4	1.5	10.2	12.2	15
	1	575-3-60	518/633	A,B,C	1		5.8	38.9	1	1.4	1.0	7.2	8.7	15
				D,E	1		5.8	38.9	1	1.9	1.5	7.7	9.2	15
	5	208-3-60	197/254	A,B,C	1		20.5	155.0	1	5.0	1.5	25.5	30.6	50
				E	1		20.5	155.0	1	6.2	2.0	26.7	31.8	50
06	6	460-3-60	414/506	A,B,C	1		9.6	75.0	1	2.4	1.5	12.0	14.4	20
				E	1		9.6	75.0	1	3.1	2.0	12.7	15.1	20
	1	575-3-60	518/633	A,B,C	1		7.6	54.0	1	1.9	1.5	9.5	11.4	15
				E	1		7.6	54.0	1	2.3	2.0	9.9	11.8	15
	5	208-3-60	197/254	A,B,C	2		13.7	83.1	1	6.2	2.0	33.6	37.0	50
				E	2		13.7	83.1	1	9.2	3.0	36.6	40.0	50
08	6	460-3-60	414/506	A,B,C	2		6.2	41.0	1	3.1	2.0	15.5	17.0	20
				E	2		6.2	41.0	1	4.3	3.0	16.7	18.3	20
	1	575-3-60	518/633	A,B,C	2		4.8	33.0	1	2.3	2.0	11.9	13.1	15
				E	2		4.8	33.0	1	3.4	3.0	13.0	14.2	15
	5	208-3-60	197/254	A,B,C	2		15.6	110.0	1	9.2	3.0	40.4	44.3	60
				E	2		15.6	110.0	1	14.1	5.0	45.3	49.2	60
10	6	460-3-60	414/506	A,B,C	2		7.8	52.0	1	4.3	3.0	19.9	21.9	25
				E	2		7.8	52.0	1	7.0	5.0	22.6	24.6	30
	1	575-3-60	518/633	A,B,C	2		5.8	38.9	1	3.4	3.0	15.0	16.5	20
				E	2		5.8	38.9	1	5.2	5.0	16.8	18.3	20
	5	208-3-60	197/254	A,B,C	2		20.5	155.0	1	9.2	3.0	50.2	55.3	80
				D,E	2		20.5	155.0	1	14.1	5.0	55.1	60.2	80
12	6	460-3-60	414/506	A,B,C	2		9.6	75.0	1	4.3	3.0	23.5	25.9	35
				D,E	2		9.6	75.0	1	7.0	5.0	26.2	28.6	35
	1	575-3-60	518/633	A,B,C	2		7.6	54.0	1	3.4	3.0	18.6	20.5	25
				D,E	2		7.6	54.0	1	5.2	5.0	20.4	22.3	25

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