Bryant 558J Fan User Manual


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Table 37 – MCA/MOCP DETERMINATION W/ PWRD C.O.
UNIT
V --- PH --- HZ
IFM
TYPE
ELECTRIC HEATER w/ PWRD C.O.
kW FLA
NO P.E. w/ P.E. (pwrd fr/unit)
MCA MOCP
DISC. SIZE
MCA MOCP
DISC. SIZE
FLA LRA FLA LRA
558J*05
208/230---1---60
STD
--- --- 44.0 60 43 155 45.9 60 45 157
4.9/6.5 23.5/27.1 44.0/46.0 60/60 43/43 155/155 45.9/48.4 60/60 45/45 157/157
6.5/8.7 31.4/36.3 51.4/57.5 60/60 47/53 155/155 53.8/59.9 60/60 49/55 157/157
9.8/13.0 46.9/54.2 70.8/79.9 80/80 65/73 155/155 73.1/82.3 80/ 90 67/76 157/157
13.1/17.4 62.8/72.5 90.6/102.8 100/110 83/95 155/155 93.0/105.1 100/110 86/97 157/157
15.8/21.0 75.8/87.5 106.9/121.5 110/125 98/112 155/155 109.3/123.9 110/125 101/114 157/157
MED
--- --- 46.1 60 45 180 48.0 60 48 182
4.9/6.5 23.5/27.1 46.1/48.6 60/60 45/45 180/180 48.0/51.0 60/60 48/48 182/182
6.5/8.7 31.4/36.3 54.0/60.1 60/70 50/55 180/180 56.4/62.5 60/70 52/58 182/182
9.8/13.0 46.9/54.2 73.4/82.5 80/90 68/76 180/180 75.8/84.9 80/ 90 70/78 182/182
13.1/17.4 62.8/72.5 93.3/105.4 100/110 86/97 180/180 95.6/107.8 100/110 88/99 182/182
15.8/21.0 75.8/87.5 109.5/124.1 110/125 101/114 180/180 111.9/126.5 125/150 103/116 182/182
208/230---3---60
STD
--- --- 30.7 45 31 131 32.6 45 33 133
4.9/6.5 13.6/15.6 30.7/31.6 45/45 31/31 131/131 32.6/34.0 45/45 33/33 133/133
7.9/10.5 21.9/25.3 39.5/43.8 45/45 36/40 131/131 41.9/46.1 45/ 50 39/42 133/133
12.0/16.0 33.4/38.5 53.9/60.3 60/70 50/55 131/131 56.3/62.6 60/70 52/58 133/133
15.8/21.0 43.8/50.5 66.9/75.3 70/80 62/69 131/131 69.3/77.6 70/80 64/71 133/133
19.9/26.5 55.2/63.8 81.1/91.9 90/100 75/85 131/131 83.5/94.3 90/100 77/87 133/133
MED
--- --- 31.0 45 31 149 32.9 45 33 151
4.9/6.5 13.6/15.6 31.0/32.0 45/45 31/31 149/149 32.9/34.4 45/45 33/33 151/151
7.9/10.5 21.9/25.3 39.9/44.1 45/45 37/41 149/149 42.3/46.5 45/ 50 39/43 151/151
12.0/16.0 33.4/38.5 54.3/60.6 60/70 50/56 149/149 56.6/63.0 60/70 52/58 151/151
15.8/21.0 43.8/50.5 67.3/75.6 70/80 62/70 149/149 69.6/78.0 70/80 64/72 151/151
19.9/26.5 55.2/63.8 81.5/92.3 90/100 75/85 149/149 83.9/94.6 90/100 77/87 151/151
HIGH
--- --- 33.3 45 34 175 35.2 50 36 177
4.9/6.5 13.6/15.6 33.3/34.9 45/45 34/34 175/175 35.2/37.3 50/50 36/36 177/177
7.9/10.5 21.9/25.3 42.8/47.0 45/50 39/43 175/175 45.1/49.4 50/ 50 42/45 177/177
12.0/16.0 33.4/38.5 57.1/63.5 60/70 53/58 175/175 59.5/65.9 60/70 55/61 177/177
15.8/21.0 43.8/50.5 70.1/78.5 80/80 65/72 175/175 72.5/80.9 80/90 67/74 177/177
19.9/26.5 55.2/63.8 84.4/95.1 90/100 78/88 175/175 86.8/97.5 90/100 80/90 177/177
460--- 3 --- 60
STD
--- --- 14.7 20 15 62 15.7 20 16 63
6.0 7.2 14.7 20 15 62 15.7 20 16 63
11.5 13.8 22.6 25 21 62 23.9 25 22 63
14.0 16.8 26.4 30 24 62 27.6 30 25 63
23.0 27.7 40.0 45 37 62 41.3 45 38 63
25.5 30.7 43.8 45 40 62 45.0 50 41 63
MED
--- --- 15.2 20 15 71 16.2 20 16 72
6.0 7.2 15.2 20 15 71 16.3 20 16 72
11.5 13.8 23.3 25 21 71 24.5 25 23 72
14.0 16.8 27.0 30 25 71 28.3 30 26 72
23.0 27.7 40.6 45 37 71 41.9 45 39 72
25.5 30.7 44.4 45 41 71 45.6 50 42 72
HIGH
--- --- 16.0 20 16 84 17.0 20 17 85
6.0 7.2 16.0 20 16 84 17.3 20 17 85
11.5 13.8 24.3 25 22 84 25.5 30 23 85
14.0 16.8 28.0 30 26 84 29.3 30 27 85
23.0 27.7 41.6 45 38 84 42.9 45 39 85
25.5 30.7 45.4 50 42 84 46.6 50 43 85
575--- 3 --- 60
STD --- --- 11.5 15 12 48 13.4 15 14 50
MED --- --- 12.4 15 13 65 14.3 20 15 67
HIGH --- --- 12.4 15 13 65 14.3 20 15 67
LEGEND:
CO --- Convenient outlet
DISC --- Disconnect
FLA --- Full load amps
IFM --- Indoor fan motor
LRA --- Locked rotor amps
MCA --- Mi nimum circuitamps
MOCP --- Maximum over current protection
PE --- Power exhaust
UNPWRD CO --- Unpowered convenientoutlet
NOTES:
1. In compliance with NEC requirements for multimotor and combina-
tion l oa d 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
percentage of voltage imbalance.
%VoltageImbalance =100x
max voltage de viationfromaveragevoltage
averagevoltage
Example: Supply voltage is 230-3-60
AB = 224 v
BC = 231 v
AC = 226 v
AverageVoltage =
(224+231 +226)
=
681
3
3
= 227
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v Maximum deviation is 4 v.
(BC) 231 – 227 = 4v Determine percent of voltage imbalance.
%VoltageImbalance =100 x
4
227
=1.76%
This amount of phase imbalance issatisfactory as it is below the maximum
allowable2%.
IMPORTANT: If the supply voltage phaseimbalance is more than 2%, con-
tact your local electric utility company immediately.
558J
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