Catalogue

UNT-PRC001-EN 57
Electrical Data
Minimum Circuit Ampacity (MCA) and Maximum Fuse Size (MFS) Calculations
for Fan-Coils: (Motors only, No Electric Heat)
MCA = (1.25) x [Largest Motor Amperes (FLA)] + Second Motor Amperes (FLA) (Size 10 and 12 only)
MFS or HACR
1
Type Circuit Breaker = 15 Amps for all Fan-Coils without Electric Heat (see previous
Electrical Data for units with Electric Heat.)
Table 43. Lowboy vertical free discharge electrically commutated motors (ECMs) programmed
with reduced FLA mode
Unit Size
115 Volt RPM
FLA HP H M L
3 0.5 0.22 1090 770 560
4 0.8 0.22 1090 750 560
6 1 0.22 1115 760 560
Note: Actual rpm will vary with application and configuration.
Table 44. Unit RPM
Unit
Size
Free Discharge—Units with 2-Row Coils Free Discharge—Units with 3- and 4-Row Coils
HML H M L
2 980 840 655 980 840 655
3 980 780 580 1080 800 600
4 1050 780 580 1080 800 600
6 1030 780 580 1080 800 600
8 1080 800 600 1080 800 600
10 1050 780 580 1080 800 600
1030 780 580 1080 800 600
12 1050 780 580 1080 800 600
1080 800 600 1080 800 600
Unit
Size
High Static—Units with 2-Row Coils High Static—Units with 3- and 4-Row Coils
HML H M L
2 1480 1110 865 1480 1110 865
3 1400 1175 860 1500 1355 1110
4 1475 1315 1070 1580 1375 1240
6 1400 1070 855 1475 1285 975
8 1475 1285 975 1475 1285 975
10 1475 1315 1070 1580 1375 1240
1400 1070 855 1475 1285 975
12 1475 1315 1070 1580 1375 1240
1475 1285 975 1475 1285 975
Note: Actual rpm will vary with application and configuration.
1
HACR (Heating, Air-Conditioning and Refrigeration) type circuit breakers are required in the branch circuit wiring for all size 10 and
12 fan-coils.
UNT-PRC001-EN.book Page 57 Tuesday, May 8, 2012 10:54 AM