Carrier FB4CNF Installation Instructions Manual page 10

FB4CNF, FB4CNP, FX4D: Installation Instructions
Model & Size Blower Speed
Tap 5
Tap 4
FB4C 018 Tap 3
Tap 2
Tap 1
Tap 5
Tap 4
FB4C 024 / 025 Tap 3
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
FB4C 030
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
FB4C 036
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
FB4C 042
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
FB4C 048
Tap 2
Tap 1
Tap 5
Tap 4
FB4C 060 Tap 3
Tap 2
Tap 1
Tap 5
Tap 4
FB4C 061 Tap 3
Tap 2
Tap 1
- Shading - Airflow outside 450 cfm/ton.
Notes:
1.Airflow based upon dry coil at 230v with factory-approved filter and electric heater (2 element heater sizes 018 through 036, 3 element heater sizes 042 through 061).
2.For FB4C models, airflow at 208 volts is approximately the same as 230 volts because the multi-tap 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 042 - 061 sizes must have supply static greater than 0.20 in. wc.
4.Airflow above 400 cfm/ton on 048-061 size could result in condensate blowing off coil or splashing out of drain pan.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Table 5 – Airflow Performance (CFM)
0.10 0.20
767 739
614 569
701 660
614 569
410 350
969 936
826 795
826 795
701 660
617 592
1108 1090
1026 1000
1026 1000
909 873
825 795
1301 1276
1227 1191
1227 1191
1087 1062
1026 1000
1560 1544
1419 1397
1419 1397
1249 1220
1242 1205
1743 1712
1669 1634
1669 1634
1452 1413
1300 1256
1897 1867
1817 1785
1817 1785
1657 1621
1443 1412
2030 1995
1811 1775
1811 1775
1665 1632
1462 1418
10
0.30 0.40
702 669
534 486
616 581
534 486
304 261
892 835
766 743
766 743
616 581
552 507
1065 1034
969 938
969 938
842 799
757 722
1245 1218
1169 1143
1169 1143
1030 1001
969 938
1507 1464
1358 1320
1358 1320
1184 1142
1158 1110
1679 1642
1599 1564
1599 1564
1377 1339
1221 1182
1836 1808
1757 1724
1757 1724
1589 1557
1377 1332
1961 1927
1740 1703
1740 1703
1593 1556
1371 1327
0.50 0.60
620 565
436 398
537 499
436 398
228 203
763 676
706 660
706 660
537 499
472 420
1009 974
899 865
899 865
762 724
674 634
1176 1121
1105 1074
1105 1074
966 930
899 865
1424 1358
1279 1239
1279 1239
1093 1052
1069 1026
1610 1574
1531 1499
1531 1499
1308 1271
1142 1101
1774 1736
1693 1655
1693 1655
1518 1474
1286 1243
1888 1842
1664 1613
1664 1613
1507 1453
1278 1228