mwcasale
04-26-2012, 08:38 AM
Perhaps an introduction is in order:
I work for an architect who has decided to incorporate HVAC systems design in office, and my experience of the sort is limited to six months self-taught training with no experienced HVAC personnel on-site for questioning; being tasked as the "Systems Designer" I ask that you bear with me if my approach seems novice.
We (architectural office) design high-end homes, typically more than 10,000 sq ft, in Florida, and have taken a liking to inverter-type HVAC systems such as the Mitsubishi City-Multi and Mr. Slim models; meaning that, per request of the architect, such systems are to be used for all of our projects.
For load calculations and duct sizing I use Wrightsoft software and am in the midst of performing my first project with no room for error.
QUESTION:
When accounting for internal loads (appliance equipment, lighting, persons, etc.) should allowances be made for each room or only the one or two rooms likely to be in use at peak hours? Please keep in mind that we are generally talking about a 10,000+ sq ft house with only 2 or 3 regular occupants, meaning that room use is often sporadic, appliances and lighting are numerous and high-end throughout the residence, and so forth.
In the most general terms please describe how to approach internal loads on a room by room basis.
I work for an architect who has decided to incorporate HVAC systems design in office, and my experience of the sort is limited to six months self-taught training with no experienced HVAC personnel on-site for questioning; being tasked as the "Systems Designer" I ask that you bear with me if my approach seems novice.
We (architectural office) design high-end homes, typically more than 10,000 sq ft, in Florida, and have taken a liking to inverter-type HVAC systems such as the Mitsubishi City-Multi and Mr. Slim models; meaning that, per request of the architect, such systems are to be used for all of our projects.
For load calculations and duct sizing I use Wrightsoft software and am in the midst of performing my first project with no room for error.
QUESTION:
When accounting for internal loads (appliance equipment, lighting, persons, etc.) should allowances be made for each room or only the one or two rooms likely to be in use at peak hours? Please keep in mind that we are generally talking about a 10,000+ sq ft house with only 2 or 3 regular occupants, meaning that room use is often sporadic, appliances and lighting are numerous and high-end throughout the residence, and so forth.
In the most general terms please describe how to approach internal loads on a room by room basis.