Installation Manual
INST ALLATION INSTRUCTIONS Fan Coils: FEM4X, FEM4P, REM4X, FXM4X
496 01 5503 01 15
Specifications are subject to change without notice.
FXM AIRFLOW PERFORMANCE - CFM at a given Speed and Static reading
Model Blower Speed
Measured Static Pressure, inlet to outlet (inches water column)
0.10 0.20 0.30 0.40 0.50 0.60
FXM4X1800
Tap 5 776 745 696 660 609 572
Tap 4 683 644 589 548 494 461
Tap 3 683 644 589 548 494 461
Tap 2 631 563 500 443 409 361
Tap 1 625 524 457 417 367 319
FXM4X2400
Tap 5 956 920 891 851 816 780
Tap 4 825 795 757 722 674 634
Tap 3 825 795 757 722 674 634
Tap 2 726 695 635 598 543 509
Tap 1 631 563 500 443 409 361
FXM4X3000
Tap 5 1189 1151 1104 1050 1003 959
Tap 4 1041 998 944 886 837 772
Tap 3 1041 998 944 886 837 772
Tap 2 924 876 817 752 704 660
Tap 1 779 693 628 571 526 476
FXM4X3600
Tap 5 1363 1332 1294 1253 1207 1157
Tap 4 1237 1206 1160 1121 1070 1013
Tap 3 1237 1206 1160 1121 1070 1013
Tap 2 1095 1058 1007 951 888 824
Tap 1 1014 885 773 673 609 549
FXM4X4200
Tap 5 1519 1490 1454 1419 1379 1332
Tap 4 1437 1403 1366 1333 1294 1245
Tap 3 1437 1403 1366 1333 1294 1245
Tap 2 1257 1226 1191 1141 1090 1033
Tap 1 1237 1206 1160 1121 1070 1013
FXM4X4800
Tap 5 1757 1725 1693 1653 1614 1576
Tap 4 1664 1626 1593 1552 1517 1477
Tap 3 1664 1626 1593 1552 1517 1477
Tap 2 1459 1420 1379 1336 1298 1259
Tap 1 1301 1241 1195 1150 1102 1039
FXM4X6000
Tap 5 2030 1995 1961 1927 1888 1842
Tap 4 1811 1775 1740 1703 1664 1613
Tap 3 1811 1775 1740 1703 1664 1613
Tap 2 1665 1632 1593 1556 1507 1453
Tap 1 1462 1418 1371 1327 1278 1228
NOTES:
1. Airflow based upon dry coil at 230v with factory approved filter and electric heater (2 element heater sizes 1800 through 3600, 3 element heater sizes 4200 through
6000).
2. Airflow at 208 volts is approximately the same as 230 volts because the ECM motor is a constant torque motor. The torque doesn’t drop off at the speeds the
motor operates.
3. To avoid potential for condensate blowing out of drain pan prior to making drain trap: Return static pressure must be less than 0.40 in. wc. Horizontal
applications of 4200 - 6000 sizes must have supply static greater than 0.20 in. wc.
4. Airflow above 400 cfm/ton on 4800 - 6000 size could result in condensate blowing off coil or splashing out of drain pan.
5. Not recommended for use above 0.60 inches water column external static pressure.
6. Shading - Airflow outside 450 cfm/ton.










