Constant Airflow Motors (Ecm) - Bosch LV009 Installation And Maintenance Manual

30 | Fan Motor Options
Table 8: Constant Torque Blower Motor Data
Rated
Model
Tap # Airflow
1
2
LV-048
3 1600
4
5
1
2
LV-060
3 2000
4
5
1
2
LV-070
3 2100
4
5
updated 7/30/14

Constant Airflow Motors (ECM)

For installations where constant air delivery is critical or
where external static pressure drop can vary greatly
(such as with high MERV value filters) the LV series is
offered with a constant air flow ECM motor option. This
option provides ECM motor efficiency combined with a
constant air delivery across a wide range of external
static pressures. These motors dynamically adjust their
power output to precisely match the desired air flow on
a pre-programmed fan curve. Additionally these motors
feature:
1. A low CFM ventilation feature that circulates air at
70% of full load when fan only is called.
2. A passive dehumidification mode that reduces air
flow during a cooling call when dehumidification is
also required – this reduces the sensible heat ratio
of the cooling coil and extends cooling run time to
more effectively dehumidify. (refer to the ECM
Interface Board section of this manual)
3. 3 speed settings per model. Units are factory set to
"NORM" but can be field adjusted to "+" to increase
CFM by 15% or to "-"to reduce CFM by 15%. (refer
to the ECM Interface Board section of this manual)
4. A "TEST" mode that operates the motor at a 70%
torque setting. This setting can be used to diagnose
programming problems in the motor itself. (refer to
the ECM Interface Board section of this manual)
8 733 944 336 (2016/09)
0.10 0.20 0.30 0.40
1390 1370 1350 1320
1600 1580 1550 1530
1730 1700 1670 1650
1830 1810 1780 1760
1930 1910 1880 1860
1900 1880 1860 1820
2000 1970 1950 1920
2110 2090 2060 2030
2220 2200 2170 2140
2340 2320 2290 2260
2050 2010 1970 1930
2150 2120 2080 2030
2270 2230 2200 2160
2390 2350 2320 2280
2520 2480 2450 2420
Subject to change without prior notice
0.50 0.60 0.70 0.80
- - - -
1510 - - -
1630 1600 1580 1540
1740 1710 1670 1600
1830 1780 1720 1640
- - - -
1890 1860 - -
2010 1970 1940 1910
2110 2080 2050 2060
2230 2210 2180 2150
- - - -
1990 1960 - -
2120 2080 2040 2010
2250 2200 2160 2130
2380 2330 2290 2260
5. A CFM indicator light that provides a blink for each
100 CFM of air delivered (note that this blink code
is approximate and should not replace test and
balancing).
Refer to the constant air flow motor performance
tables for heat pump blower performance with the
constant air flow motor option.
LV Heat Pump Series
0.90 1.00 1.10 1.20
- - - -
- - - -
- - - -
1520 - - -
1540 1420 - -
- - - -
- - - -
1880 - - -
2050 2000 1920 -
2110 2070 2000 1930
- - - -
- - - -
1980 - - -
2100 2070 2030 -
2220 2170 2100 2020
LV Heat Pump Series