Carrier 30GTN015-035 installation instructions

Table 3B — Electrical Data — Unit with Factory-Installed Motormaster® I Control

UNIT				UNIT					CONTROL CIRCUIT
SIZE	Voltage	Supplied*		MCA	MOCP	ICF	Rec Fuse	V-Hz		Supplied		MCA and
30GTN	V-Hz (3 Ph)	Min	Max				Size	(Single Ph)		Min	Max	MOCP
	208/230-60	187	253	82.2	125	278.4	100	115-60		104	127	30
	460-60	414	506	38.3	60	129.3	45	115-60		104	127	30
015	575-60	518	633	30.8	50	105.6	40	115-60		104	127	30
	380-60	418	342	43.9	70	152.8	60	230-60		198	254	15
	380/415-50	342	440	51.9	80	181.5	70	230-50		198	254	15
	208/230-60	187	253	97.4	150	357.4	125	115-60		104	127	30
	460-60	414	506	49.6	80	182.3	60	115-60		104	127	30
020	575-60	518	633	42.0	70	129.6	50	115-60		104	127	30
	380-60	418	342	51.1	80	198.8	60	230-60		198	254	15
	380/415-50	342	440	63.0	100	231.5	80	230-50		198	254	15
	208/230-60	187	253	124.7	200	458.4	150	115-60		104	127	30
	460-60	414	506	60.7	100	232.3	80	115-60		104	127	30
025	575-60	518	633	51.5	80	173.6	70	115-60		104	127	30
	380-60	418	342	64.7	110	254.8	80	230-60		198	254	15
	380/415-50	342	440	71.0	110	261.5	90	230-50		198	254	15
	208/230-60	187	253	145.5	250	518.4	175	115-60		104	127	30
	460-60	414	506	68.7	110	262.3	90	115-60		104	127	30
030	575-60	518	633	54.0	90	185.6	70	115-60		104	127	30
	380-60	418	342	73.6	125	287.8	90	230-60		198	254	15
	380/415-50	342	440	90.3	150	353.5	110	230-50		198	254	15
	208/230-60	187	253	203.0	350	708.6	250	115-60		104	127	30
035	460-60	414	506	91.1	150	357.4	110	115-60		104	127	30
	575-60	518	633	80.7	125	289.0	100	115-60		104	127	30
	380-60	418	342	111.1	175	393.7	150	230-60		198	254	15

LEGEND

ICF — Maximum Instantaneous Current Flow during starting (the point in the starting sequence where the sum of the LRA for the starting compressor, plus the total RLA for all running compressors, plus the total FLA for all running fan motors is maximum).

MCA — Minimum Circuit Amps (complies with National Elec- trical Code [NEC, U.S.A.], Section 430-24)

MOCP — Maximum Overcurrent Protection

*Units are suitable for use on electrical systems where voltage sup- plied to unit terminals is not below or above listed minimum and maximum limits.

NOTE: Never operate a motor where a phase imbalance in supply voltage is greater than 2%. Use the following formula to determine the percent voltage imbalance.

Percent Voltage Imbalance

max voltage deviation from average voltage

= 100 x

average voltage

Determine maximum deviation from average voltage:

(AB) 243 – 239 = 4 v (BC) 239 – 236 = 3 v (AC) 239 – 238 = 1 v

Maximum deviation is 4 v. Determine percent voltage imbalance:

4

% Voltage Imbalance = 100 x

239

= 1.7%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

IMPORTANT: Contact your local electric utility company immediately if the supply voltage phase imbalance is more than 2%.

Example: Supply voltage is 240-3-60.

AB = 243 v

BC = 236 v

AC = 238 v

243 + 236 + 238

Average voltage =

3

=239 v

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