Bryant 558J Fan User Manual


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Table 39 – 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*07
208/230---1---60
STD
--- --- 38.5 60 38 138 40.4 60 40 140
3.3/4.4 15.9/18.3 38.5/38.5 60/60 38/38 138/138 40.4/40.4 60/60 40/40 140/140
6.5/8.7 31.4/36.3 51.4/57.5 60/60 47/53 138/138 53.8/59.9 60/60 49/55 140/140
9.8/13.0 46.9/54.2 70.8/79.9 80/80 65/73 138/138 73.1/82.3 80/ 90 67/76 140/140
13.1/17.4 62.8/72.5 90.6/102.8 100/110 83/95 138/138 93.0/105.1 100/110 86/97 140/140
15.8/21.0 75.8/87.5 106.9/121.5 110/125 98/112 138/138 109.3/123.9 110/125 101/114 140/140
MED
--- --- 38.5 60 38 138 40.4 60 40 140
3.3/4.4 15.9/18.3 38.5/38.5 60/60 38/38 138/138 40.4/40.4 60/60 40/40 140/140
6.5/8.7 31.4/36.3 51.4/57.5 60/60 47/53 138/138 53.8/59.9 60/60 49/55 140/140
9.8/13.0 46.9/54.2 70.8/79.9 80/80 65/73 138/138 73.1/82.3 80/ 90 67/76 140/140
13.1/17.4 62.8/72.5 90.6/102.8 100/110 83/95 138/138 93.0/105.1 100/110 86/97 140/140
15.8/21.0 75.8/87.5 106.9/121.5 110/125 98/112 138/138 109.3/123.9 110/125 101/114 140/140
208/230---3---60
STD
--- --- 28.3 40 29 104 30.2 40 31 106
4.9/6.5 13.6/15.6 29.1/31.6 40/40 29/29 104/104 31.5/34.0 40/40 31/31 106/106
6.5/8.7 18.1/20.9 34.8/38.3 40/40 32/35 104/104 37.1/40.6 40/45 34/37 106/106
12.0/16.0 33.4/38.5 53.9/60.3 60/70 50/55 104/104 56.3/62.6 60/70 52/58 106/106
15.8/21.0 43.8/50.5 66.9/75.3 70/80 62/69 104/104 69.3/77.6 70/80 64/71 106/106
MED
--- --- 28.3 40 29 104 30.2 40 31 106
4.9/6.5 13.6/15.6 29.1/31.6 40/40 29/29 104/104 31.5/34.0 40/40 31/31 106/106
6.5/8.7 18.1/20.9 34.8/38.3 40/40 32/35 104/104 37.1/40.6 40/45 34/37 106/106
12.0/16.0 33.4/38.5 53.9/60.3 60/70 50/55 104/104 56.3/62.6 60/70 52/58 106/106
15.8/21.0 43.8/50.5 66.9/75.3 70/80 62/69 104/104 69.3/77.6 70/80 64/71 106/106
HIGH
--- --- 28.6 40 29 122 30.5 40 31 124
4.9/6.5 13.6/15.6 29.5/32.0 40/40 29/29 122/122 31.9/34.4 40/40 31/32 124/124
6.5/8.7 18.1/20.9 35.1/38.6 40/40 32/36 122/122 37.5/41.0 40/45 35/38 124/124
12.0/16.0 33.4/38.5 54.3/60.6 60/70 50/56 122/122 56.6/63.0 60/70 52/58 124/124
15.8/21.0 43.8/50.5 67.3/75.6 70/80 62/70 122/122 69.6/78.0 70/80 64/72 124/124
460--- 3 --- 60
STD
--- --- 12.9 15 13 51 13.9 20 14 52
6.0 7.2 14.4 15 13 51 15.6 20 14 52
11.5 13.8 22.6 25 21 51 23.9 25 22 52
14.0 16.8 26.4 30 24 51 27.6 30 25 52
23.0 27.7 40.0 45 37 51 41.3 45 38 52
MED
--- --- 12.9 15 13 51 13.9 20 14 52
6.0 7.2 14.4 15 13 51 15.6 20 14 52
11.5 13.8 22.6 25 21 51 23.9 25 22 52
14.0 16.8 26.4 30 24 51 27.6 30 25 52
23.0 27.7 40.0 45 37 51 41.3 45 38 52
HIGH
--- --- 13.4 15 14 60 14.4 20 15 61
6.0 7.2 15.0 15 14 60 16.3 20 15 61
11.5 13.8 23.3 25 21 60 24.5 25 23 61
14.0 16.8 27.0 30 25 60 28.3 30 26 61
23.0 27.7 40.6 45 37 60 41.9 45 39 61
575--- 3 --- 60
STD --- --- 9.0 15 9 46 10.9 15 11 48
MED --- --- 9.0 15 9 46 10.9 15 11 48
HIGH --- --- 9.1 15 9 52 11.0 15 12 54
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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