26 | Fan Motor Options SV Heat PumpSeries
SV Heat Pump Series8 733 914 818 (2014?08) Subject to change without prior notice
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 SV 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)
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.
SV-048
1 1390 1370 1350 1320 - -- -----
2
1600 1580 1550 1530 1510 -- -----
3
1600 1730 1700 1670 1650 1630 1600 1580 1540 - ---
4
1830 1810 1780 1760 1740 1710 1670 1600 1520 ---
5
1930 1910 1880 1860 1830 1780 1720 1640 1540 1420 - -
SV-060
1 1900 1880 1860 1820 - -- -----
2
2000 1970 1950 1920 1890 1860 - -----
3
2000 2110 2090 2060 2030 2010 1970 1940 1910 1880 ---
4
2220 2200 2170 2140 2110 2080 2050 2060 2050 2000 1920 -
5
2340 2320 2290 2260 2230 2210 2180 2150 2110 2070 2000 1930
SV-070
1 2050 2010 1970 1930 - -- -----
2
2150 2120 2080 2030 1990 1960 - -----
3
2100 2270 2230 2200 2160 2120 2080 2040 2010 1980 ---
4
2390 2350 2320 2280 2250 2200 2160 2130 2100 2070 2030 -
5
2520 2480 2450 2420 2380 2330 2290 2260 2220 2170 2100 2020
Table 6: Constant Torque Blower Motor Data
Model
Fan
Spee
d
Rated
Airflow
0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20
To Next Page
Loading...
Need help?
General
