13
Table 2A — Electrical Data (Without Convenience Outlet)
LEGEND
*Used to determine minimum disconnect per NEC.
†Fuse or HACR circuit breaker.
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. Canadian units may be fuse or circuit 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
Example: Supply voltage is 460-3-60.
AB = 452 v
BC = 464 v
AC = 455 v
= 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.
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allowable
2%.
3. For units with power exhaust: If a single power source is to be used, size wire to include
power exhaust MCA and MOCP. Check MCA and MOCP when power exhaust is pow-
ered through the unit (must be in accordance with NEC and/or local codes). Determine
the new MCA including the power exhaust using the following formula:
MCA New = MCA unit only + MCA of Power Exhaust
For example, using a 48TF006---5 unit with MCA = 28.9 and MOCP = 35, with
CRPWREXH030A00 power exhaust.
MCA New = 28.9 amps + 1.6 amps = 30.5 amps
If the new MCA does not exceed the published MOCP, then MOCP would not change.
The MOCP in this example is 35 amps, the MCA New is below 35, therefore the MOCP
is acceptable. If “MCA New” is larger than the published MOCP, raise the MOCP to the
next larger size. For separate power, the MOCP for the power exhaust will be 15 amps
per NEC.
UNIT
NOMINAL
VO LTAG E
IFM
TYPE
VOLTAG E
RANGE
COMPR
(ea)
OFM
(ea)
IFM
COMBUSTION
FAN MOTOR
FLA
POWER SUPPLY
DISCONNECT
SIZE*
Min Max RLA LRA Hp FLA FLA MCA MOCP† FLA LRA
48TF,TM004
(3 Tons)
208/230-1-60
Std
187 254 16.2 96.0
1
/
4
1.4
3.5
.6
25.2/25.2 30/30 24/24 106/106
Alt 4.9 26.6/26.6 35/35 26/26 111/111
208/230-3-60
Std
187 254 10.2 75.0
1
/
4
1.4
3.5
.6
17.7/17.7 25/25 17/17 85/ 85
Alt 4.9 19.1/19.1 25/25 19/19 90/ 90
High 5.2 19.4/19.4 25/25 19/19 109/109
460-3-60
Std
414 508 4.4 40.0
1
/
4
0.8
1.3
.3
7.6 15 7 44
Alt 2.1 8.4 15 8 48
High 2.6 8.9 15 9 57
575-3-60
Std
518 632 3.7 31.0
1
/
4
0.8
1.3
.3
5.5 15 6 35
Alt 2.1 6.0 15 7 37
High 2.6 6.3 15 7 56
48TF,TM005
(4 Tons)
208/230-1-60
Std
187 254 23.3 118.0
1
/
4
1.4
3.5
.6
34.0/34.0 40/40 32/32 129/129
Alt 4.9 35.4/35.4 45/45 34/34 133/133
208/230-3-60
Std
187 254 15.4 90.0
1
/
4
1.4
3.5
.6
24.2/24.2 30/30 23/23 101/101
Alt 4.9 25.6/25.6 30/30 25/25 105/105
High 5.2 25.9/25.9 30/30 25/25 124/124
460-3-60
Std
414 508 8.3 45.0
1
/
4
0.8
1.8
.3
13.0 20 13 51
Alt 2.1 13.3 20 13 53
High 2.6 13.8 20 13 62
575-3-60
Std
518 632 6.4 36.0
1
/
4
0.8
1.8
.3
9.2 15 10 41
Alt 2.1 9.3 15 10 42
High 2.6 9.7 15 10 49
48TF,TM006
(5 Tons)
208/230-1-60
Std
187 254 28.8 147.0
1
/
4
1.4
5.9
.6
43.3/43.3 60/60 42/42 161/161
Alt 6.6 44.0/44.0 60/60 42/42 184/184
208/230-3-60
Std
187 254 16.0 114.0
1
/
4
1.4
5.9
.6
27.3/27.3 35/35 27/27 128/128
Alt 5.2 26.6/26.6 35/35 26/26 148/148
High 7.5 28.9/28.9 35/35 29/29 174/174
460-3-60
Std
414 508 7.4 64.0
1
/
4
0.8
3.1
.3
13.2 20 13 71
Alt 2.6 13.5 20 13 81
High 3.4 13.5 20 13 93
575-3-60
Std
518 632 6.2 52.0
1
/
4
0.8
3.1
.3
9.7 15 11 58
Alt 2.6 9.9 15 11 65
High 3.4 9.9 15 11 76
48TF007
(6 Tons)
208/230-3-60
Std
187 254 20.6 146.0
1
/
4
1.4
5.2
.6
32.4/32.4 40/40 31/31 180/180
High 7.5 34.7/34.7 40/40 34/34 205/205
460-3-60
Std
414 508 9.5 73.0
1
/
4
0.9
2.6
.3
15.4 20 15 90
High 3.4 16.2 20 16 103
575-3-60
Std
518 632 7.6 58.4
1
/
4
0.6
2.6
.3
11.4 15 12 75
High 3.4 11.9 15 13 86
48TM007
(6 Tons)
208/230-3-60
Std
187 254 20.6 146.0
1
/
4
1.4
5.2
.6
32.4/32.4 40/40 31/31 180/180
High 7.5 34.7/34.7 40/40 34/34 205/205
460-3-60
Std
414 508 9.5 73.0
1
/
4
0.9
2.6
.3
15.4 20 15 90
High 3.4 16.2 20 16 103
575-3-60
Std
518 632 7.6 58.4
1
/
4
0.6
2.6
.3
11.4 15 12 79
High 3.4 11.9 15 13 86
FLA —
Full Load Amps
HACR —
Heating, Air Conditioning and Refrigeration
IFM —
Indoor (Evaporator) Fan Motor
LRA —
Locked Rotor Amps
MCA —
Minimum Circuit Amps
MOCP —
Maximum Overcurrent Protection
NEC —
National Electrical Code
OFM —
Outdoor (Condenser) Fan Motor
RLA —
Rated Load Amps
= 100 x
max voltage deviation from average voltage
average voltage
Average Voltage =
452 + 464 + 455
3
=
1371
3
% Voltage Imbalance = 100 x
7
457
IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact
your local electric utility company immediately.
POWER EXHAUST
PA R T N O.
MCA
(230 v)
MCA
(460 v)
MCA
(575 v)
MOCP
(for separate
power source)
CRPWREXH030A00
1.6 N/A 0.64 15
CRPWREXH021A00
N/A 0.9 N/A 15
CRPWREXH022A00
3.3 N/A 1.32 15
CRPWREXH023A00
N/A 1.8 N/A 15
CRPWREXH028A00
1.7 N/A 0.68 15
CRPWREXH029A00
N/A 1.0 N/A 15
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