Constant Torque Motors (Ecm) - Bosch LV Series Installation And Maintenance Manual

26 | Fan Motor Options

Constant Torque Motors (ECM)

For installations where the efficiency of an
electronically commutated brushless DC motor
(ECM) motor is required, but the features of a
constant airflow motor are not required, the LV
series is offered with a constant torque ECM motor
option. These motors feature up to 90% thermal
efficiency combined with a flatter fan curve than a
PSC motor and simple operation. These motors
are provided with 5 speed taps to allow for a wide
range of air flow and external static options. To
change a speed tap follow the instructions below:
Table 6: Constant Torque Blower Motor Data
Rated
Model
Tap # Airflow
1
2
LV-015
3 500
4
5
1
2 650
LV-018
3
4
5
1
2
LV-024
3
4 850
5
1
2
LV-030
3 950
4
5
1
2
LV-036
3 1200
4
5
8 733 905 683 (2013/04)
0.10 0.20 0.30 0.40
480 440 410 370
530 490 450 420
600 560 510 470
650 600 560 520
710 660 620 580
630 590 560 530
720 700 670 630
790 770 750 710
910 890 850 810
1010 970 920 860
650 610 580 560
740 720 690 660
850 830 800 770
950 920 890 870
1160 1110 1050 990
1020 1000 970 920
1110 1060 1000 940
1120 1070 1010 960
1160 1080 1010 950
1150 1090 1020 960
1120 1090 1055 1030
1260 1230 1200 1170
1330 1293 1253 1210
1400 1357 1307 1250
1470 1420 1360 1290
Subject to change without prior notice
1. Disconnect power to the heat pump.
2. Remove the blower access panel.
3. Remove the speed tap wire from the terminal it
is currently connected to and connect it to the
terminal desired.
Refer to the constant torque motor performance
tables for heat pump blower performance with the
constant torque motor option.
0.50 0.60 0.70 0.80
340 - - -
380 340 - -
440 410 370 -
500 480 440 380
550 520 490 470
490 - - -
600 560 - -
670 620 560 -
740 670 590 520
810 750 660 530
520 - - -
620 570 - -
730 690 630 -
840 820 770 650
920 800 670 560
- - - -
880 850 - -
900 850 740 -
880 840 750 550
890 850 760 540
1000 - - -
1140 1080 - -
1167 1100 1030 -
1193 1120 1040 963
1220 1140 1050 970
LV Heat PumpSeries
0.90 1.00 1.10 1.20
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -
890 - - -
LV Heat Pump Series