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Envelope & Lighting without Mechanical

I am working on an envelope & lighting only calculation and not modeling the HVAC system (no HVAC system is input). It is my understanding that when I do this, the heating and cooling are then given identical standard and proposed inputs by the software and therefore balance out and don't effect the calculations or the compliance.

What I am finding, is that the calculations show that I am taking a huge penalty for indoor fans (of which none are specified) and penalties for space heating and space cooling. Often, the collective penalties are enough to preclude compliance.

Am I doing something wrong? Why should indoor fans cause such a penalty if I am not modeling mechanical?

Envelope & Lighting without Mechanical

I am working on an envelope & lighting only calculation and not modeling the HVAC system (no HVAC system is input). It is my understanding that when I do this, the heating and cooling are then given identical standard and proposed inputs by the software and therefore balance out and don't effect the calculations or the compliance.

What I am finding, is that the calculations show that I am taking a huge penalty for indoor fans (of which none are specified) and penalties for space heating and space cooling. Often, the collective penalties are enough to preclude compliance.

Am I doing something wrong? Why should indoor fans cause such a penalty if I am not modeling mechanical?