Carrier PF4MNB Series Installation Instructions Manual page 10

PF4MNB, PF4MNP: Installation Instructions
Sizes 018 - 037
HEATER
ELEMENTS
0
1
2
3
4
Model & Size Blower Speed
Tap 5
Tap 4
Tap 3
PF4MNP 018
Tap 2
Tap 1
Tap 5
Tap 4
PF4MNP
Tap 3
024 / 025
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
PF4MNP 030
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
PF4MNP 036
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
PF4MNP 042
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
PF4MNP 048
Tap 2
Tap 1
Tap 5
Tap 4
Tap 3
PF4MNP 060
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.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 4 – Electric Heater Static Pressure Drop (in. wc)
EXTERNAL STATIC
kW PRESSURE
CORRECTION
0 +.02
3, 5 +.01
8, 10 0
9, 15 –.02
20 –.04
Table 5 – PF4MNP 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
HEATER
ELEMENTS
0
2
3
4
6
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
10
Sizes 042 - 061
EXTERNAL STATIC
kW PRESSURE
CORRECTION
0 +.04
8, 10 +.02
9, 15
20 –.02
18, 24, 30 –.10
0.50
620
436
537
436
228
763
706
706
537
472
1009
899
899
762
674
1176
1105
1105
966
899
1424
1279
1279
1093
1069
1610
1531
1531
1308
1142
1774
1693
1693
1518
1286
0
0.60
565
398
499
398
203
676
660
660
499
420
974
865
865
724
634
1121
1074
1074
930
865
1358
1239
1239
1052
1026
1574
1499
1499
1271
1101
1736
1655
1655
1474
1243