Product data

22 Catalog 724-2
Electrical Data
Electrical Data
MCA (Minimum Circuit Ampacity), MOP (Maximum
Overcurrent Protection) or MFS (Maximum Fuze Size)
Calculations
The minimum circuit ampacity (MCA) is the minimum
wire size required for a eld-wired product. The maximum
overcurrent protection (MOP), or maximum fuse size (MFS)
is the maximum fuse or circuit breaker size required to
properly protect the equipment.
Select a standard fuse size or HACR type circuit breaker
equal to the MOP. Standard Fuse Sizes are: 15, 20, 25, 30,
35, 40, 45, 50, 60 amps. Use the next larger standard size if
the MOP does not equal a standard size. See Table 8 through
Table 10 for motor FLAs.
HACR (Heating, Air-Conditioning and Refrigeration) type
circuit breakers are required in the branch circuit wiring for
all fan coils with electric heat.
NOTE: MCA and MOP ratings are based on the unit and
electric heat power supply having the same voltage. If
the electric heat power supply is different, a separate
circuit breaker may be required. Follow local codes.
Heater Amps =
(Heater kW × 1000)
Heater Voltage
NOTE: Use 120V heater voltage for 115V units. Use 240V
heater voltage for 230V units.
MCA = 1.25 × (heater amps + all motor FLAs)
MOP or MFS = (2.25 x Largest Motor FLA)
+ Second Motor FLA
+ Heater Amps
[If Applicable]
Electric Heaters
Table 9: Electric heat kW*
Motor Electrical Data
Table 10: PSC motor; hideaway plenum, standard TA lter; 3 row coil; 0.05 external static pressure
Table 11: ECM motor; hideaway plenum, standard TA lter; 3 row coil; 0.30 external static pressure
Unit
Size
Unit
Voltage
kW
02
115 1.0 1.5 2.0
230 1.0 1.5 2.0
277 1.0 1.5 2.0
208† 0.8 1.2 1.6
03
115 1.0 1.5 2.0 2.5
230 1.0 1.5 2.0 2.5
277 1.0 1.5 2.0 2.5
208† 0.8 1.2 1.6 2.0
04
115 2.0 2.5 3.0
230 2.0 2.5 3.0
277 2.0 2.5 3.0
208† 1.6 2.0 2.5
06
115 2.0 2.5 3.0
230 2.5 4.0 5.0 6.0
277 2.5 4.0 5.0 6.0
208† 2.0 3.3 4.1 4.9
Note: *Electric heat MBh = (Heater kW) x(3.413)
† 208/1/60 V heater capacity is derated from 230/1/60
Unit
Size
Unit
Voltage
kW
08
115 2.0 3.0
230 2.5 4.0 6.0 7.0
277 2.5 4.0 6.0 7.0
208† 2.0 3.3 4.9 5.7
10
115 2.0 3.0
230 3.0 5.0 6.0 7.0
277 3.0 5.0 6.0 7.0
208† 2.5 4.1 4.9 5.7
12
115 2.5 3.0
230 3.0 5.0 6.0 8.0
277 3.0 5.0 6.0 8.0 10.0
208† 2.5 4.1 4.9 6.5
Motor Voltage
Motor
Speed
Size 02 Size 03 Size 04 Size 06 Size 08 Size 10 Size 12
Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM
115
High 0.596 65.5 951 1.175 129 1190 0.747 79.2 928 1.45 147 1080 1.48 150 1072 2.53 263 1119 2.965 310.7 1068
Medium 0.49 52.6 856 0.726 77.4 851 0.602 62.25 785 1.05 103.1 888 1.13 111 799 1.89 185 997 2.218 222.1 840
Low 0.381 39.5 780 0.49 50.2 633 0.450 43.95 640 0.87 82 734 0.91 83 674 1.63 154 856 1.833 172.9 660
230
High 0.3 66 908 0.548 123.4 1152 0.372 86.2 909 0.657 150.6 1096 0.69 158 1085 1.19 269 1128 1.306 297.7 1105
Medium 0.247 56.5 825 0.323 74 830 0.309 70.8 750 0.449 101.5 950 0.5 108 887 0.814 180.1 1024 0.86 195 969
Low 0.2 46 704 0.211 46.2 628 0.251 55.9 628 0.358 76.5 777 0.38 77 720 0.663 142 840 0.69 154 844
277
High 0.303 65.1 988 0.431 110.1 1121 0.348 82.3 885 0.513 142.4 1091 0.54 151 1082 0.936 258 1124 0.997 280 1112
Medium 0.228 57.2 866 0.24 65.5 838 0.259 67.6 762 0.371 101.6 945 0.39 106 877 0.66 178.5 1014 0.713 199 970
Low 0.177 47.3 743 0.152 42.2 651 0.196 53.6 650 0.302 81.9 796 0.31 82 737 0.562 150 891 0.625 166 784
Motor Voltage
Motor
Speed
Size 02 Size 03 Size 04 Size 06 Size 08 Size 10 Size 12
Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM Amps Watts RPM
115
High 1.20 65 1258 1.42 71.8 1294 1.64 89 1269 2.46 156 1363 2.92 196 1456 3.72 255 1407 4.54 321 1460
Medium 0.94 46 1158 0.11 52 1240 1.14 62 1155 1.74 99 1220 2.24 152 1323 2.66 176 1294 3.12 208 1331
Low 0.70 35 1099 0.86 38 1086 0.90 47 1106 1.14 67 1145 1.80 119 1263 2.00 126 1159 2.40 157 1260
230
High 0.60 65 1258 0.71 71.8 1294 0.82 89 1269 1.23 156 1363 1.46 196 1456 1.86 255 1407 2.27 321 1460
Medium 0.47 46 1158 0.55 52 1240 0.57 62 1155 0.87 99 1220 1.12 152 1323 1.33 176 1294 1.56 208 1331
Low 0.35 35 1099 0.43 38 1086 0.45 47 1106 0.58 67 1145 0.90 119 1263 1.00 126 1159 1.20 157 1260
277
High 0.50 65 1258 0.59 71.8 1294 0.68 89 1269 1.02 156 1363 1.21 196 1456 1.54 255 1407 1.88 321 1460
Medium 0.39 46 1158 0.46 52 1240 0.47 62 1155 0.72 99 1220 0.93 152 1323 1.10 176 1294 1.30 208 1331
Low 0.29 35 1099 0.36 38 1086 0.37 47 1106 0.48 67 1145 0.75 119 1263 0.83 126 1159 1.00 157 1260