How to model a Hot Air Source in Energyplus.

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I am considering that I will direct the Hot air directly to a thermal Zone. It is similar to throwing exhaust air of compressor into a zone during winter.

Where is the hot air coming from? You said the air source will be outdoor air. Is it coming from outside, or is it coming from a different thermal zone?

The air is coming from exhaust of an Air Compressor. The zone where air compressor is situated is not considered into the modeling. I am seeking ways to incorporate that Hot exhaust air into a room for heating purpose. How can I model that? If I consider it as Outdoor air, then how to make sure a high temperature air is coming? It should be turned off during summer. That means I need to have fresh outdoor air intake during summer. Alternatively, if I have an AirLoop with fan, how can I heat the supply air using a air-to-air heat exchanger. One side supply air, other side hot air from compresor

I would model an unconditioned zone for where the air compressor is located and use an OtherEquipment object to characterize the heat gains from the compressor. Then, use ZoneMixing to simulate the interaction between the two zones.

That is a wise way to do. Thanks for the idea. I will try that.

In the mean time, I edited the comments and add second question.