Airflow Performance Tables - Payne PF4MNA Installation Instructions Manual

Direct expansion fan coil unit
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MODEL
BLOWER SPEED
PF4MNA 018
PF4MNA 019
PF4MNA 024
PF4MNA 025
PF4MNA 030
PF4MNA 031
PF4MNA 036
PF4MNA 037
PF4MNA 042
PF4MNA 043
PF4MNA 048
PF4MNA 049
PF4MNA 060
PF4MNA 061
--- 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 18 thru 36, 3 ele-
ment heater sizes 42 thru 60). Airflow at 208 volts is approxi-
mately 10% lower for models 018, 024,030, 036, 042, 048 and
060. For models 019, 025, 031, 037, 043, 049 and 061, airflow
at 208 volts is approximately the same as 230 volts because the
X13 motor is a constant torque motor. The torque doesn't drop
off at the speeds the motor operates.
Table 2 – Air Delivery Performance Correction Component Pressure Drop (in. wc) at Indicated Airflow (Dry to Wet Coil)
Size
500
600
700
018, 019 0.034
0.049
0.063
024, 025 0.016
0.027
0.038
030, 031
--- ---
--- ---
--- ---
036, 037
--- ---
--- ---
--- ---
042, 043
--- ---
--- ---
--- ---
048. 049
--- ---
--- ---
--- ---
060, 061
--- ---
--- ---
--- ---

AIRFLOW PERFORMANCE TABLES

Table 1 – Airflow Performance (CFM)
0.10
High
816
Low
633
High
766
Medium
701
Low
614
High
1055
Low
934
High
941
Medium
823
Low
633
High
1070
Low
910
High
1130
Medium
1033
Low
840
High
1352
Low
1137
High
1437
Medium
1282
Low
1168
High
1720
Medium
1576
Low
1388
High
1616
Medium
1479
Low
1303
High
1902
Medium
1830
Low
1625
High
1805
Medium
1652
Low
1458
High
2128
Medium
1959
Low
1748
High
2057
Medium
1799
Low
1667
800
900
1000
1100
--- ---
--- ---
--- ---
--- ---
0.049
0.059
--- ---
--- ---
0.049
0.059
0.070
0.080
--- ---
--- ---
0.055
0.064
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
TOTAL EXTERNAL STATIC PRESSURE (in. wc)
0.20
0.30
795
753
620
588
739
706
659
619
572
530
991
926
878
818
905
868
786
747
583
533
1032
978
888
849
1097
1063
1028
1000
965
802
760
1316
1273
1223
1112
1081
1043
1398
1354
1308
1238
1192
1142
1118
1067
1014
1668
1602
1521
1540
1488
1421
1367
1330
1278
1578
1533
1480
1437
1392
1344
1258
1211
1161
1824
1743
1659
1763
1690
1611
1584
1531
1465
1772
1739
1704
1617
1581
1543
1418
1377
1335
2050
1965
1875
1898
1829
1750
1709
1659
1598
2024
1989
1954
1766
1731
1695
1633
1596
1558
2. 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 --- 060 sizes must have supply
static greater than 0.20 in wc.
3. Airflow above 400 cfm/ton on 048 ---060 size could result in con-
densate blowing off coil or splashing out of drain pan.
CFM
1200
1300
1400
1500
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
0.073
0.081
--- ---
--- ---
0.049
0.056
0.063
0.070
--- ---
--- ---
0.038
0.043
--- ---
--- ---
--- ---
--- ---
10
0.40
0.50
0.60
690
607
504
538
468
380
666
619
566
578
538
499
486
441
396
860
793
724
754
686
614
830
792
753
707
665
622
482
431
378
908
822
721
791
715
621
992
955
928
888
846
713
663
609
1167
1103
998
946
1257
1204
1090
1036
959
903
1426
1316
1338
1239
1209
1124
1420
1353
1293
1240
1108
1054
1571
1479
1527
1436
1387
1296
1669
1632
1504
1463
1292
1248
1778
1674
1663
1566
1525
1442
1916
1878
1658
1618
1517
1475
1600
1700
1800
1900
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
0.049
0.054
0.059
--- ---
0.027
0.031
0.035
0.039
2000
--- ---
--- ---
--- ---
--- ---
--- ---
--- ---
0.043

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