Air Cooled Liquid Chillers (Trane Company (The))

Electrical Data - 60 Hz

10-60 Tons

Table 26-1 — Electrical Data

Tons	Model Number	Unit Wiring					Motor data
		Nameplate Voltage	Voltage range	MCA	Max fuse Size	Rec. Dual Element	Compressor (Ea)			Fans (Ea)
		Nameplate Voltage	Voltage range	MCA	Max fuse Size	Rec. Dual Element	Qty.	RLA	LRA	Qty.	KW	FLA
10	CGA120B1	208-230/60/1	187-254	71.0	90		2	28.9	150	1	.95	6.0
	CGA120B3	208-230/60/3	187-254	48.3	60		2	18.8	118	1	.95	6.0
	CGA120B4	460/60/3	414-506	25.2	35		2	10.0	71	1	.95	2.7
	CGA120BW	575/60/3	518-632	17.3	20		2	6.8	43	1	.95	2.0
15	CGA180B3	208-230/60/3	187-254	72.6	90		2	29.5	179	2	1.03	3.1
	CGA180B4	460/60/3	414-506	33.6	40		2	13.5	90	2	1.03	1.6
	CGA180BW	575/60/3	518-632	26.7	35		2	10.8	72	2	1.03	1.2
20		200/60/3	180-220	98	125	110	2	39.4	269	2	0.9	4.1
		230/60/3	208-254	98	125	110	2	39.4	251	2	0.9	4.1
	CGAF-C20	460/60/3	416-508	44	60	50	2	17.2	117	2	0.9	1.8
		575/60/3	520-635	33	45	40	2	13.2	94	2	0.9	1.4
25		200/60/3	180-220	124	175	150	2	39.3,56.9	269,409	3	0.9	4.1
		230/60/3	208-254	124	175	150	2	39.3,56.9	251,376	3	0.9	4.1
	CGAF-C25	460/60/3	416-508	56	80	70	2	17.1,25.4	117,178	3	0.9	1.8
		575/60/3	520-635	44	60	50	2	13.8,20.2	94,143	3	0.9	1.4
30		200/60/3	180-220	146	200	175	2	56.9	409	4	0.9	4.1
		230/60/3	208-254	146	200	175	2	56.9	376	4	0.9	4.1
	CGAF-C30	460/60/3	416-508	65	80	80	2	25.1	178	4	0.9	1.8
		575/60/3	520-635	51	70	60	2	19.9	143	4	0.9	1.4
40		200/60/3	180-220	187	225	200	4	39.4	269	4	0.9	4.1
		230/60/3	208-254	186	225	200	4	39.4	251	4	0.9	4.1
	CGAF-C40	460/60/3	416-508	82	90	90	4	17.2	117	4	0.9	1.8
		575/60/3	520-635	62	70	70	4	13.2	94	4	0.9	1.4
50		200/60/3	180-220	224	250	250	4	35.5,55.5	269,409	6	0.9	4.1
		230/60/3	208-254	223	250	250	4	35.5,55.5	251,376	6	0.9	4.1
	CGAF-C50	460/60/3	416-508	98	110	110	4	15.5,24.2	117,178	6	0.9	1.8
		575/60/3	520-635	77	90	90	4	12.4,19.4	94,143	6	0.9	1.4
60		200/60/3	180-220	270	300	300	4	56.9	409	6	0.9	4.1
		230/60/3	208-254	269	300	300	4	56.9	376	6	0.9	4.1
	CGAF-C60	460/60/3	416-508	120	125	125	4	25.4	178	6	0.9	1.8
		575/60/3	520-635	95	110	100	4	20.2	143	6	0.9	1.4

Notes:

1. MCA: Minimum Circuit Ampacity is 125% of the largest compressor RLA plus 100% of the other compressor(s) RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more

2. Maximum Fuse Size: 225% of the largest compressor RLA plus 100% of the other compressor(s) RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more

3. Recommended Dual Element Fuse Size: 150% of the largest compressor RLA plus 100% of the other compressor(s) RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more.

4. RLA: Rated in accordance with UL standard 1995.

5. Local codes may take precedence.

6. All units are across the line starting. Compressors will never start simultaneously.

7. One 115/60/1, 15 AMP jobsite provided power connection is required to operate the evaporator heat tape.

Load Definitions

LOAD1 = Current of the largest motor — compressor or fan motor

LOAD2 = Sum of the currents of all remaining motors

LOAD3 = Current of electric heaters

LOAD4 = Any other load rated at 1 amp or more

MCA = (1.25 x LOAD1) + LOAD2 + LOAD4

MOP = (2.25 x LOAD1) + LOAD2 + LOAD4

Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size as listed in NEC 240-6, select the next lower standard fuse rating.

NOTE: If selected MOP is less than the MCA, then reselect the lowest standard maximum fuse size which is equal to or larger than the MCA, provided the reselected fuse size does not exceed 800 amps.

RDE =(1.5 x LOAD1) + LOAD2 + LOAD4

Select a fuse rating equal to the RDE value. If the RDE value does not equal a standard fuse size as listed in NEC 240-6, select the next higher standard fuse rating.

NOTE: If the selected RDE is greater than the selected MOP value, then reselect the RDE value to equal the MOP value.

DSS =1.5 x (LOAD1 + LOAD2 + LOAD3 + LOAD4)

Select a disconnect switch size equal to or larger than the DSS value calculated.

Air Cooled Liquid Chillers - Page 25