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Page 12
A
DJUSTING THE
A
IRFLOW
(2000
UNITS
)
The belt drive system is adjustable to provide a wide range of airflow. Each motor is equipped with a variable
pitch sheave that permits an independent airflow adjustment. The sheaves have been factory set to provide
the optimum airflow without exceeding the amp draw on the motor for normal applications. The pitch
diameter may be decreased to reduce the airflow provided by the blower. To decrease the pitch diameter,
remove the setscrew on the sheave furthest from the motor and rotate half the sheave in a counter-clockwise
direction. Tighten the setscrew and adjust the tension in the belt. This technique can be used instead of
dampers to efficiently balance the HRV system. Each motor should never draw more than the rated amps (see
table below) with the doors of the unit closed and attached to the duct system.
Unit
Voltage (Vac) Rated Amps for Motors
MCA
MOP
One
Two
2000IFD
240
9.0
18.0
22.5
30
2000IFD-208
208
3.0
6.0
14.75
20
2000IFD-208SP
208
10.4
20.8
26
30
2000IFD-460
460
2.6
5.2
6.5
15
2000IFD-575
575
2.0
4.0
5
15
2000EFD
240
9.0
18.0
22.5
30
2000EFD-208
208
3.0
6.0
14.75
20
2000EFD-208SP
208
10.4
20.8
26
30
2000EFD-460
460
2.6
5.2
6.5
15
2000EFD-575
575
2.0
4.0
5
15
Warning
•
If adjustments are made to the pitch diameter, AMP readings must be made to ensure the MAX amp
load per motor is not exceeded. Refer to the table to obtain the motor amp load for the unit.
Содержание 1500E-ECM
Страница 1: ......
Страница 10: ...www lifebreath com 4 DIMENSIONAL DRAWINGS 1500I ECM Dimensions 1500E ECM Dimensions ...
Страница 11: ...www lifebreath com 5 DIMENSIONAL DRAWINGS 2000IFD Dimensions 2000EFD Dimensions ...
Страница 12: ...www lifebreath com 6 DIMENSIONAL DRAWINGS 2500IFD Dimensions 2500EFD Dimensions ...
Страница 39: ...www lifebreath com Page 20 WIRING DIAGRAMS 1500I ECM E ECM ...
Страница 40: ...www lifebreath com Page 21 WIRING DIAGRAMS 2000IFD EFD 208 ...
Страница 41: ...www lifebreath com Page 22 WIRING DIAGRAMS 2000IFD EFD 208SP ...
Страница 42: ...www lifebreath com Page 23 WIRING DIAGRAMS 2000IFD EFD 460 ...
Страница 43: ...www lifebreath com Page 24 WIRING DIAGRAMS 2000IFD EFD 575 ...
Страница 44: ...www lifebreath com Page 25 WIRING DIAGRAMS 2500IFD EFD ...
Страница 45: ...www lifebreath com Page 26 WIRING DIAGRAMS 2500IFD EFD 208 ...