Bryant 558F User Manual
Page 50
ELECTRICAL DATA — 558D036-072 (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
Quantity
Hp
FLA
FLA
Nom kW**
FLA
MCA
MOCP††
FLA
LRA
060
(5 Ton)
208/230-1-60
Std
187
254
28.3
141
1
1
⁄
4
1.4
5.9
—
—
42.7/ 42.7
50/ 50
43/ 43
155/155
4.9/ 6.5
23.5/27.1
42.7/ 42.7
50/ 50
43/ 43
6.5/ 8.7
31.4/36.3
46.6/ 52.7
50/ 60
46/ 49
9.8/13.0
46.9/54.2
66.0/ 75.1
70/ 80
64/ 69
13.0/17.4
62.8/72.5
85.9/ 98.0
90/100
82/ 90
15.8/21.0
75.8/87.5
102.2/116.8
110/125
97/107
Alt
8.5
—
—
48.3/ 48.3
60/ 60
47/ 47
178/178
4.9/ 6.5
23.5/27.1
48.3/ 48.3
60/ 60
47/ 47
6.5/ 8.7
31.4/36.3
50.3/ 56.3
60/ 60
47/ 52
9.8/13.0
46.9/54.2
69.7/ 78.7
70/ 80
64/ 72
13.0/17.4
62.8/72.5
89.5/101.6
90/110
82/ 93
15.8/21.0
75.8/87.5
105.8/120.4
110/125
97/111
208/230-3-60
Std
187
254
17.7
110
1
1
⁄
4
1.4
5.9
—
—
29.4/ 29.4
35/ 35
29/ 29
124/124
4.9/ 6.5
13.6/15.6
29.4/ 29.4
35/ 35
29/ 29
7.9/10.5
21.9/25.3
34.7/ 38.9
40/ 40
32/ 36
12.0/16.0
33.4/38.5
49.1/ 55.5
50/ 60
46/ 51
15.8/21.0
43.8/50.5
62.1/ 70.5
70/ 80
57/ 65
19.9/26.5
55.2/63.8
76.4/ 87.1
80/ 90
70/ 80
Alt
8.5
—
—
32.0/ 32.0
40/ 40
29/ 29
145/145
4.9/ 6.5
13.6/15.6
32.0/ 32.0
40/ 40
29/ 29
7.9/10.5
21.9/25.3
38.0/ 42.2
45/ 45
32/ 36
12.0/16.0
33.4/38.5
52.3/ 58.7
60/ 60
45/ 51
15.8/21.0
43.8/50.5
65.3/ 73.8
70/ 80
57/ 65
19.9/26.5
55.2/63.8
79.7/ 90.3
80/100
70/ 80
460-3-60
Std
414
508
8.6
55
1
1
⁄
4
0.8
3.2
—
—
14.8
20
15
63
6.0
7.2
14.8
20
15
11.5
13.8
21.3
25
20
14.0
16.8
25.0
30
23
23.0
27.7
38.6
40
36
25.0
30.1
41.6
45
38
Alt
4.5
—
—
16.1
20
14
73
6.0
7.2
16.1
20
14
11.5
13.8
22.9
25
19
14.0
16.8
26.7
30
22
23.0
27.7
40.2
45
35
25.0
30.1
43.2
45
38
575-3-60
Std
518
632
6.4
44
1
1
⁄
4
0.8
3.2
—
—
12.0
15
12
52
Alt
2.6
—
—
11.4
15
12
62
072
(6 Ton)
208/230-
3-60
Std
187
254
20.9
142
1
1
⁄
4
1.4
5.8
—
—
33.3/ 33.3
40/ 40
32/ 32
187/187
4.9/ 6.5
13.6/15.6
33.3/ 33.3
40/ 40
32/ 32
7.9/10.5
21.9/25.3
33.3/ 38.8
40/ 40
32/ 36
12.0/16.0
33.4/38.4
48.9/ 55.4
50/ 60
45/ 51
15.8/21.0
43.8/50.5
62.0/ 70.4
70/ 80
57/ 65
19.9/26.5
55.2/63.8
76.8/ 86.9
80/ 90
70/ 80
460-3-60
Std
414
508
9.9
72
1
1
⁄
4
0.8
2.6
—
—
15.6
20
15
94
6.0
7.2
15.6
20
15
11.5
13.8
20.5
25
19
14.0
16.8
24.3
25
22
23.0
27.8
37.8
40
35
25.5
30.7
41.6
45
38
575-3-60
Std
518
632
7.9
58
1
1
⁄
4
0.8
2.6
—
—
14.6
15
12
76
LEGEND AND NOTES FOR ELECTRICAL DATA TABLES ON PAGES 49-54
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, 480 v, and
575 v. Heaters are rated at 240 v, 480 v, and 575 v. If power distribution voltage to unit
varies from rated heater voltage, heater kW will vary accordingly. To determine heater
capacity at actual unit voltage, multiply 240 v, 480 v, or 575 v capacity by multipliers
found in Electric Heat Multiplication Factors table on page 48.
†Used to determine minimum disconnect size per NEC.
**Heaters are field installed only.
††Fuse or HACR circuit breaker.
Fusing in single point box provides the required branch circuit protection.
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. The 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.
max voltage deviation from average voltage
% Voltage Imbalance =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
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.
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.
3. MCA calculation for 558F180-300 units with electric heaters over 50 kW =
(1.25 x IFM amps) + (1.00 x heater FLA).
036-150 Only
036-072 Only
090-150 Only
180-300 Only
180-300 Only
50