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Can someone once and for all help me understand the Sensible Heat Gain Summary table and how it relates to the end use table? Here are my questions:

1. What efficiencies are factored in from sensible gains HVAC heating/cooling numbers to get to end use table?

2. What is the difference between the first 2 columns and column 3-4 on sensible gain summary table? One says zone equipment and the other terminal units, I am not sure if that is trying to separate the AHU level from zone somehow?

3. On cooling columns, why is one number positive and one negative under "zone & other" and "terminal unit" columns?

The tables below are from a building with DOAS + FCUs, so it kinda makes sense to me if I read it as some cooling happens at AHU level (HVAC Zone Eq and Other sensible air) and some at terminal (HVAC terminal unit sensible air cooling). Not sure why I don't see terminal level heating with this example but that might be due to something wrong at terminal FCUs.

Gains Summary: C:\fakepath\Heat Gains.png

End uses: C:\fakepath\End uses.png

Can someone once and for all help me understand the Sensible Heat Gain Summary table and how it relates to the end use table? Here are my questions:

1. What efficiencies are factored in from sensible gains HVAC heating/cooling numbers to get to end use table?

2. What is the difference between the first 2 columns and column 3-4 on sensible gain summary table? One says zone equipment and the other terminal units, I am not sure if that is trying to separate the AHU level from zone somehow?

3. On cooling columns, why is one number positive and one negative under "zone & other" and "terminal unit" columns?

The tables below are from a building with DOAS + FCUs, so it kinda makes sense to me if I read it as some cooling happens at AHU level (HVAC Zone Eq and Other sensible air) and some at terminal (HVAC terminal unit sensible air cooling). Not sure why I don't see terminal level heating with this example but that might be due to something wrong at terminal FCUs.

Gains Summary: C:\fakepath\Heat Gains.png

End uses: C:\fakepath\End uses.png

Can someone once and for all help me understand the Sensible Heat Gain Summary table and how it relates to the end use table? Here are my questions:

1. What efficiencies are factored in from sensible gains HVAC heating/cooling numbers to get to end use table?

2. What is the difference between the first 2 columns and column 3-4 on sensible gain summary table? One says zone equipment and the other terminal units, I am not sure if that is trying to separate the AHU level from zone somehow?

3. On cooling columns, why is one number positive and one negative under "zone & other" and "terminal unit" columns?

The tables below are from a building with DOAS + FCUs, so it kinda makes sense to me if I read it as some cooling happens at AHU level (HVAC Zone Eq and Other sensible air) and some at terminal (HVAC terminal unit sensible air cooling). Not sure why I don't see terminal level heating with this example but that might be due to something wrong at terminal FCUs.

Gains Summary: C:\fakepath\Heat Gains.pngSummary:

End uses: C:\fakepath\End uses.png