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electrical Connections
Special Applications
If the HVAC System this motor is applied to uses a separate speed for
each heating and/or cooling demand including two-stage systems, this
page is not needed.
Systems that require the same speed for heating and/or cooling demands.
For Example:
• Heat Pump Systems with or without emergency electric strip heat.
• Air Conditioning Systems with electric heat.
• Large furnaces connected to a small air conditioning or heat pump.
• Systems with multiple stages and overlapping airflow requirements.
To allow the motor to operate at the same speed from two different
thermostat demands, the special
y-adapter included in the box must be
used. Do Not attempt to use any other method to wire two thermostat lines
to the same speed. The Y-adapter is specially designed for this application
to prevent voltage feedback, and the operation of multiple demands at the
same time.
only the meD-HI and loW speeds can be used with the y-adapter. If HI
or MED-LOW is found to be the required airflow for two system demands
another speed will have to be used for one of the demands, or the evergreen
Im should not be applied to that system. In most cases the speeds of the
Evergreen IM are close enough in airflow range to select another speed for
one of the demands.
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Evergreen IM manual 01-13.indd 15
2/13/13 11:12 AM
