Frequency Simulation - Fresh Air Ventilation / Multi Zone Air Flow Model

Hi All,

I am carrying out a frequency simulation calculation and want to add in an amount of fresh air to see the effect this has on overheating - either via air change rate or fresh air for occupants.

I know that the methodology for this is either to:

- click 'use equipment for fresh air ventilation only' under equipment simulation

or

- click additional fersh air (and then adjust the air change rate)

I also know that the multi zone air flow model must be selected under 'design data' too.

My questions are

1) Is there a preferred methodology?

2) When the fresh air or air change rate is added - what condition does hevacomp assume this air is at? i.e. room temp / 12 degrees etc? and how are these conditions adjusted?

I'd appreciate the help.

Regards

Kevin