21
5 SERIES 500A11 INSTALLATION MANUAL
5-Speed ECM Constant Torque Motors
The 5-Speed ECM is a ‘Constant Torque’ ECM motor and
delivers air flow similar to a PSC but operates as efficiently as
an ECM Motor. Because it’s an ECM Motor, the 5-Speed ECM
can ramp slowly up or down like the ECM motor. There are 5
possible speed taps available on the 5-Speed ECM motor with
#1 being the lowest airflow and #5 being the highest airflow.
These speed selections are preset at the time of manufacture
and are easily changed in the field if necessary.
If more than one tap are energized at the same time, built
in logic gives precedence to the highest tap number and
allows air flow to change with G, Y1, Y2 and W signals or
with Fan, CC, CC2, and E1 output signals. Each of those
5 speeds has a specific ‘Torque’ value programmed into
the motor for each speed selection. As static pressure
increases, airflow decreases resulting in less torque on the
rotor. The motor responds only to changes in torque and
adjusts its speed accordingly.
The 5-Speed ECM motor is powered by line voltage but the
motor speed is energized by 24 VAC.
5-Speed ECM Benefits:
-
High
efficiency
-
Soft
start
- 5 speeds with up to 4 speeds on-line
- Built in logic allows air flow to change with G, Y1, Y2
and W signals
- Super efficient low airflow continuous blower setting (G)
Single Speed Unit with 5-Speed ECM Motor
Model
Motor
Speed
Motor
Tap
T’stat
Cnct.
Blower
Size
Motor
HP
Airflow (cfm) at External Static Pressure (in. wg)
0
0.05
0.10
0.15
0.20
0.25
0.30
0.35 0.40 0.45 0.50 0.60 0.70 0.80 0.90
1.00
022
High
5
W
9 x 7
1/2
980
960
940
930
920
905
890
875
860
840
820
800
745
-
-
-
Med High
4
Y1
890
878
865
845
825
813
800
785
770
753
735
710
665
-
-
-
Med
3
830
815
800
788
775
755
735
723
710
690
670
640
600
-
-
-
Med Low
2
G
780
760
740
703
665
653
640
620
600
585
570
-
-
-
-
-
Low
1
625
593
560
535
510
495
480
455
430
410
390
-
-
-
-
-
030
High
5
9 x 7
1/2
1407
1381
1354
1327
1300
1267
1233
1201
1168
1131
1094 1009
-
-
-
-
Med High
4
W
1146
1134
1122
1111
1099 1085
1071
1062
1052 1042
1031
966
-
-
-
-
Med
3
Y1
1023
1012
1001
985
969
959
949
937
925
913
901
-
-
-
-
-
Med Low
2
978
962
946
934
922
907
891
882
872
858
843
-
-
-
-
-
Low
1
G
795
777
759
748
737
718
698
686
673
650
626
-
-
-
-
-
036
High
5
W
11 x 10
1/2
1530
1503
1476
1453
1429
1413
1397
1376
1355
1342
1329
1276
1231
1173
-
-
Med High
4
Y1
1413
1388
1363
1342
1321
1303
1285
1263
1240
1226
1212
1173
1016
946
-
-
Med
3
1355
1325
1294
1276
1258
1235
1212
1188
1164
1144
1123
982
909
883
-
-
Med Low
2
1336
1299
1261
1242
1222
1202
1181
1157
1132
1111
1090
937
874
830
-
-
Low
1
G
1243
1182
1121
1061
1000
964
928
856
784
744
703
647
592
-
-
042
High
5
11 x 10
1
1934
1910
1886
1871
1855
1827
1799
1780
1760
1747
1734
1700 1659
1617
-
-
Med High
4
W
1799
1783
1767
1744
1720
1693
1666
1649
1631
1617
1603 1560 1530
1492
-
-
Med
3
1694 1680 1666
1642
1617
1592
1567
1552
1537
1519
1500 1453
1421
1372
-
-
Med Low
2
Y1
1575
1560 1540 1520
1502
1487
1471
1448
1424 1409
1393
1351
1308
1266
-
-
Low
1
G
1454 1406
1358
1333
1308
1285
1261
1239
1217
1198
1179
1072
1002
988
-
-
048
High
5
11 x 10
1
1934
1910
1886
1871
1855
1827
1799
1780
1760
1747
1734
1700 1659
1617
-
-
Med High
4
W
1799
1783
1767
1744
1720
1693
1666
1649
1631
1617
1603 1560 1530
1492
-
-
Med
3
Y1
1694 1680 1666
1642
1617
1592
1567
1552
1537
1519
1500 1453
1421
1372
-
-
Med Low
2
1575
1560 1540 1520
1502
1487
1471
1448
1424 1409
1393
1351
1308
1266
-
-
Low
1
G
1454 1406
1358
1333
1308
1285
1261
1239
1217
1198
1179
1072
1002
988
-
-
060
High
5
W
11 x 10
1
2245 2230 2214
2194
2173
2155
2136
2120
2103 2087 2070 2032 1998
1957
1910
1825
Med High
4
2092 2073 2054 2035 2015
1995
1975
1958 1940
1922
1904 1880
1843 1806
1767
1728
Med
3
1951
1931
1910
1889
1868
1850
1831
1812
1793
1774
1755
1722
1688
1654
1612
1562
Med Low
2
Y1
1812
1796
1780
1761
1741
1718
1695
1682
1668
1651
1633
1591
1555
1518
1480 1433
Low
1
G 1682
1661
1640
1616
1591
1573
1555
1533
1510
1495 1480
1441
1400
1351
1316
1263
070
High
5
W
11 x 10
1
2472 2454 2435 2414 2393
2371 2349 2328 2306 2289 2271 2230 2189
2121
2033 1936
Med High
4
Y1
2271 2248 2225 2205 2184
2166
2147
2129
2110 2094 2078 2039
2011
1977
1930 1846
Med
3
2133
2115
2096 2072 2047 2030 2013
1996
1979
1965
1950 1909
1873
1837
1793
1748
Med Low
2
2008 1985
1962
1939
1915
1898
1880
1862
1843
1828
1812
1774
1742
1703
1669
1635
Low
1
G
1806
1784
1761
1742
1722
1696
1669
1656
1642
1625
1607
1564
1527
1490 1443 1404
Factory speed settings are in Bold
Air flow values are with dry coil and standard filter
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]).
Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12in. wg., and 500 fpm
by 0.16 in. wg.
Highest setting is for auxiliary heat (W) and lowest setting is for constant blower (G). The “Y1” and “Y2” settings must be between the
“G” and “W” settings.
The gray wire is not factory wired to the motor and is tied to the wire harness. This wire can be field connected and can be used with
3ht/2cl thermostats or IntelliZone2 to deliver the required air flow for the Y2 signal.
6/14/12
Blower Performance Data cont.
Содержание 500A11
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