Bryant 569J Installation, Start-Up And Service Instructions Manual page 23

UNIT
V--- Ph--- Hz
208/230---3---60
460--- 3--- 60
569J*12D/E
575--- 3--- 60
208/230---3---60
460--- 3--- 60
569J*14D/E
575--- 3--- 60
UNIT
V--- Ph--- Hz
208/230---3---60
460--- 3--- 60
569J*12D/E
575--- 3--- 60
208/230---3---60
460--- 3--- 60
569J*14D/E
575--- 3--- 60
NOTE: See "Legend and Notes for Tables 10 and 11" below
Legend and Notes for Tables 10 and 11
LEGEND:
FLA --- Full Load Amps
LRA --- Locked Rotor Amps
MOCP --- Maximum Over Current
Protection
NEC --- National Electrical Code
RLA --- Rated Load Amps
} Units are suitable for use on electrical systems where voltage
supplied to the unit terminals is not below or above the listed
limits.
NOTES:
1. The MCA and Fuse values are calculated in accordance with
The NEC. Article 440.
2. Motor RLA and LRA values are established in accordance
with Underwriters' Laboratories (UL). Standard 1995.
3. The 575--- v units are UL, Canada--- listed only.
4. 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 de-
termine the percentage of voltage imbalance.
Table 11 – Electrical Data — 569J*12- - 14D/E 60 Hz Units
WTIHOUT POWERED CONVENIENCE OUTLET
VOLTAGE COMPRESSOR
RANGE }
MIN MAX RLA
187 253 16
414 506 7.8
518 633 5.7
187 253 22.4
414 506 10.6
518 633 7.7
WTIH POWERED CONVENIENCE OUTLET
VOLTAGE COMPRESSOR
RANGE }
MIN MAX RLA
187 253 16
414 506 7.8
518 633 5.7
187 253 22.4
414 506 10.6
518 633 7.7
COMPRESSOR
1 2
LRA RLA LRA WATTS
110 16 110
52 7.8 52
39 5.7 39
149 22.4 149
75 10.6 75
54 7.7 54
COMPRESSOR
1 2
LRA RLA LRA WATTS
110 16 110
52 7.8 52
39 5.7 39
149 22.4 149
75 10.6 75
54 7.7 54
Example: Supply voltage is 230-3-60
% Voltage Imbalance = 100 x
AB = 224 v
BC = 231 v
AC = 226 v
(224 + 231 + 226)
Average Voltage =
=
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
(BC) 231 – 227 = 4 v
(AC) 227 – 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
% Voltage Imbalance
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.
23
POWER
OFM (ea)
SUPPLY
FLA MCA MOCP
325 1.5 40.6 60
325 0.8 22.5 40
325 0.6 16.4 30
325 1.5 53.4 60
325 0.8 25.4 30
325 0.6 18.5 25
POWER
OFM (ea)
SUPPLY
FLA MCA MOCP
325 1.5 43.8 50
325 0.8 21.3 25
325 0.6 15.7 20
325 1.5 58.2 80
325 0.8 27.7 35
325 0.6 20.2 25
max voltage deviation from average voltage
average voltage
=
3
227
4
= 100 x
227
= 1.76%
681
3