Bryant 764A - Manual (Page 10)

Table 2 — Electrical Data
UNIT
564A/764A
NOMINAL
VOLTAGE
(V-Ph-Hz)
VOLTAGE
RANGE
COMPRESSOR OFM IFM ELECTRIC HEAT POWER SUPPLY
DISCONNECT
SIZE
Min Max RLA LRA FLA FLA
Nominal
kW*
FLA MCA MOCP FLA LRA
024 208/230-1-60 187 254 10.9 61.0 0.9 2.4
—/— —/— 16.9/ 16.9 20/ 20 16/ 16
68 3.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.1/ 55.1 50/ 60 44/ 51
030 208/230-1-60 187 254 15.2 69.4 1.5 2.4
—/— —/— 22.9/ 22.9 30/ 30 22/ 22
79
3.8/ 5.0 18.1/20.8 25.6/ 29.0 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.1/ 55.1 50/ 60 44/ 51
11.3/15.0 54.2/62.5 70.7/ 81.1 80/ 90† 65/ 75
036
208/230-1-60 187 254 15.9 86.0 1.5 2.8
—/— —/— 24.2/ 24.2 30/ 30 23/ 23
96
3.8/ 5.0 18.1/20.8 26.1/ 29.5 30/ 30 24/ 27
7.5/10.0 36.1/41.7 48.6/ 55.6 50/ 60 45/ 51
11.3/15.0 54.2/62.5 71.2/ 81.6 80/ 90† 66/ 75
15.0/20.0 72.2/83.3 93.6/107.7 100/110† 86/ 99
208/230-3-60 187 254 8.9 64.5 1.5 2.8
—/— —/— 15.4/ 15.4 20/ 20 15/ 15
74
3.8/ 5.0 10.4/12.0 16.5/ 18.5 20/ 20 15/ 17
7.5/10.0 20.8/24.1 29.6/ 33.6 30/ 35 27/ 31
11.3/15.0 31.3/36.1 42.6/ 48.6 45/ 50 39/ 45
15.0/20.0 41.7/48.1 55.6/ 63.6 60/ 70† 51/ 59
042
208/230-1-60 187 254 18.5 97.6 1.5 2.8
—/— —/— 27.4/ 27.4 35/ 35 26/ 26
107
3.8/ 5.0 18.1/20.8 27.4/ 29.5 35/ 35 26/ 27
7.5/10.0 36.1/41.7 48.6/ 55.6 50/ 60 45/ 51
11.3/15.0 54.2/62.5 71.2/ 81.6 80/ 90† 66/ 75
15.0/20.0 72.2/83.3 93.8/107.7 100/110† 86/ 99
208/230-3-60 187 254 10.9 73.0 1.5 2.8
—/— —/— 17.9/ 17.9 25/ 25 17/ 17
83
3.8/ 5.0 10.4/12.0 17.9/ 18.5 25/ 25 17/ 17
7.5/10.0 20.8/24.1 29.6/ 33.6 30/ 35 27/ 31
11.3/15.0 31.3/36.1 42.6/ 48.6 45/ 50 39/ 45
15.0/20.0 41.7/48.1 55.6/ 63.6 60/ 70† 51/ 59
048
208/230-1-60 187 254 21.3 107.0 1.5 4.2
—/— —/— 32.3/ 32.3 40/ 40 31/ 31
121
3.8/ 5.0 18.1/20.8 32.3/ 32.3 40/ 40 31/ 31
7.5/10.0 36.1/41.7 50.4/ 57.3 60/ 60 46/ 53
11.3/15.0 54.2/62.5 72.9/ 83.4 80/ 90† 67/ 77
15.0/20.0 72.2/83.3 95.5/109.4 100/110† 88/101
208/230-3-60 187 254 12.3 73.0 1.5 4.2
—/— —/— 21.1/ 21.1 25/ 25 21/ 21
87
3.8/ 5.0 10.4/12.0 21.1/ 21.1 25/ 25 21/ 21
7.5/10.0 20.8/24.1 31.3/ 35.3 35/ 40 29/ 32
11.3/15.0 31.3/36.1 44.3/ 50.4 45/ 60 41/ 46
15.0/20.0 41.7/48.1 57.4/ 65.4 60/ 70† 53/ 60
060
230-1-60 207 254 26.9 128.0 1.4 6.2
— — 41.2 50 40
141
5.0 20.8 41.2 50 40
10.0 41.7 59.8 60 55
15.0 62.5 85.9 90† 79
20.0 83.3 111.9 125† 103
208/230-3-60 187 254 17.7 128.0 1.4 6.2
—/— —/— 29.7/ 29.7 35/ 35 29/ 29
146
3.8/ 5.0 10.4/12.0 29.7/ 29.7 35/ 35 29/ 29
7.5/10.0 20.8/24.1 33.8/ 37.8 35/ 40 31/ 35
11.3/15.0 31.3/36.1 46.8/ 52.9 50/ 60 43/ 49
15.0/20.0 41.7/48.1 59.9/ 67.9 60/ 70† 55/ 62
460-3-60 414 508 9.0 63.0 0.7 3.2
— — 15.2 20 15
71
5.0 6.0 15.2 20 15
10.0 12.0 19.0 20 18
15.0 18.0 26.6 30 24
20.0 24.1 34.1 35 31
LEGEND
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
*Heater capacity (kW) is based on heater voltage of 208 v, 240 v, or
480 v. If power distribution voltage to unit varies from rated heater voltage, heater
kW will vary accordingly.
†Fuse or HACR circuit breaker.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load and
equipment (refer to NEC Articles 430 and 440), the overcurrent protective de-
vice for the unit shall be fuse or HACR 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 percentage of voltage
imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
= 100 x
average voltage
EXAMPLE: Supply voltage is 460-3-60
AB = 452 v
BC = 464 v
AC = 455 v
452 + 464 + 455
Average voltage =
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 percentage of voltage imbalance:
7
% Voltage imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum
allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than 2% contact
your local electric utility company immediately.
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