Bryant 558D Heating System User Manual


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Table 2 — Electrical Data (Cont)
UNIT
558D
NOMINAL
V-PH-Hz
IFM
TYPE
VOLTAGE
RANGE
COMPR
(each)
OFM IFM ELECTRIC HEAT* POWER SUPPLY
DISCONNECT
SIZE**
Min Max RLA LRA FLA FLA Nominal kW FLA MCA MOCP† FLA LRA
060
(5 Ton)
208/230-1-60
Std
187 254 28.8 147 1.4
5.9
— — 43.3/ 43.3 60/ 60 42/ 42 159/159
4.9/ 6.5 23.5/27.1 43.3/ 43.3 60/ 60 42/ 42 159/159
6.5/ 8.7 31.4/36.3 46.6/ 52.7 60/ 60 43/ 49 159/159
9.8/13.0 46.9/54.2 66.0/ 75.1 70/ 80†† 61/ 69 159/159
13.0/17.4 62.8/72.5 85.9/ 98.0 90/100†† 79/ 90 159/159
15.8/21.0 75.8/87.5 102.2/116.8 110/125†† 94/107 159/159
Alt 8.8
— — 46.2/ 46.2 60/ 60 45/ 45 162/162
4.9/ 6.5 23.5/27.1 46.2/ 46.2 60/ 60 45/ 45 162/162
6.5/ 8.7 31.4/36.3 49.9/ 55.9 60/ 60 46/ 52 162/162
9.8/13.0 46.9/54.2 69.3/ 78.3 70/ 80†† 64/ 72 162/162
13.0/17.4 62.8/72.5 89.2/101.3 90/110†† 82/ 93 162/162
15.8/21.0 75.8/87.5 105.5/120.0 110/125†† 97/110 162/162
208/230-3-60
Std
187 254 16.3 114 1.4
5.9
— — 27.7/ 27.7 35/ 35 27/ 27 126/126
4.9/ 6.5 13.6/15.6 27.7/ 27.7 35/ 35 27/ 27 126/126
7.9/10.5 21.9/25.3 34.7/ 38.9 40/ 40 32/ 36 126/126
12.0/16.0 33.4/38.5 49.1/ 55.5 50/ 60 46/ 51 126/126
15.8/21.0 43.8/50.5 62.1/ 70.5 70/ 80†† 57/ 65 126/126
19.9/26.5 55.2/63.8 76.4/ 87.1 80/ 90†† 70/ 80 126/126
Alt 5.8
— — 26.8/ 26.8 40/ 40 27/ 27 125/125
4.9/ 6.5 13.6/15.6 26.8/ 26.8 40/ 40 27/ 27 125/125
7.9/10.5 21.9/25.3 35.3/ 39.5 45/ 45 32/ 36 125/125
12.0/16.0 33.4/38.5 49.6/ 56.0 60/ 60 45/ 51 125/125
15.8/21.0 43.8/50.5 62.6/ 71.1 70/ 80†† 57/ 65 125/125
19.9/26.5 55.2/63.8 77.0/ 87.6 80/100†† 70/ 80 125/125
460-3-60
Std
414 508 7.4 64 0.8
3.2
— — 13.3 20 13 69
6.0 7.2 13.3 20 13 69
11.5 13.8 21.3 25 20 69
14.0 16.8 25.0 30 23 69
23.0 27.7 38.6 40 36 69
25.5 30.1 41.6 45 38 69
Alt 2.6
— — 12.7 20 12 70
6.0 7.2 12.7 20 12 70
11.5 13.8 21.0 25 19 70
14.0 16.8 24.8 30 22 70
23.0 27.7 38.3 45 35 70
25.0 30.1 41.3 45 38 70
575-3-60
Std
518 632 6.2 52 0.8࿣
3.2࿣ — — 11.8 15 12 57
Alt 2.6࿣ — — 11.2 15 12 59
072
(6 Ton)
208/230-3-60 Std 187 254 23.6 146.0 1.4 5.2
— — 36.1/ 36.1 45/ 45 35/ 35 191/191
4.9/ 6.5 13.6/15.6 36.1/ 36.1 45/ 45 35/ 35 191/191
7.9/10.5 21.9/25.3 36.1/ 38.1 45/ 45 35/ 35 191/191
12.0/16.0 33.4/38.4 48.2/ 54.6 50/ 60 44/ 50 191/191
15.8/21.0 43.8/50.5 61.2/ 69.6 70/ 70†† 56/ 64 191/191
19.9/26.5 55.2/63.8 75.6/ 86.2 80/ 90†† 70/ 79 191/191
460-3-60 Std 414 508 10.6 73.0 0.8 2.6
— — 16.7 20 16 90
6.0 7.2 16.7 20 16 90
11.5 13.8 20.5 25 19 90
14.0 16.8 24.3 25 22 90
23.0 27.8 37.8 40 35 90
25.5 30.7 41.6 45 38 90
575-3-60 Std 518 632 8.5 58.4 0.8࿣ 2.6࿣ — — 13.3 20 14 75
IMPORTANT: Optional, alternate evaporator-fan motor and drive are not available for
558D072 units. Contact your local representative for more information about field-
installed motors.
LEGEND
COMPR — Compressor
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
*Available for field-installed accessory heaters only. 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.
**Used to determine minimum disconnect per NEC.
††Fusing single-point box provides the required branch circuit protection.
࿣Ampacities are based on 460 v. MCA and MOCP are based on 575 v.
NOTES:
1. In compliance with NEC requirements for multimotor and combination load equip-
ment (refer to NEC Articles 430 and 440), the overcurrent protective device 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 percent 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
1371
=
3
= 457
NOTE: The 575-v units are Canada only.
Determine maximum deviation from average voltage.
(AB) 457 - 452=5v
(BC) 464 - 457=7v
(AC) 457 - 455=2v
Maximum deviation is 7 v.
Determine percent voltage imbalance.
7
% Voltage Imbalance = 100 x
457
= 1.53%
This amount of phase imbalance is satisfactory as it is below the maximum allow-
able 2%.
IMPORTANT: If the supplyvoltage phase imbalance is more than2%, contact your
local electric utility company immediately.
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