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Is there anything in the California Title 24 code which states how to handle large roll-up doors as far as the building envelope forms are concerned?

Thank you. R-22 is basically not allowed in California, which is where the project is. They do allow R-22, but if the unit is inside the building, the amount allowed in the system is very low.

I need help finding a company with split system air conditioners using any of the newer refrigerants (not R-22), in the 7.5 to 10 ton range.

Actually, I already did.

The point of the question was not to supply the minimum per code, but to make the warehouse more comfortable for the occupants.

I contacted Trane and had the rep just run the program they have.

I have a job in California, and need to know what the normal HVAC redundancy requirements are for low and medium switchgear buildings at a power plant. What is normal industry practice.

I'll answer my own question. At an outside air temperature of 55 degrees or lower, modulate dampers to maintain a supply air temperature of 55 degrees, for coolilng. For heating, drive outside damper...

Per the California Energy Code, the economizer should shut off, and minimum outdoor air should be used at 76 degrees OAT DB and above. The design heating temperature for the area is 30 degrees, and I...

The all time record after 92 years of record keeping is 87 degrees:
http://www.ncdc.noaa.gov/oa/climate/online/ccd/extrememax.html

What is the recommended temperature on the low end, to use the minimum quantity of outdoor air, when controlling with outdoor air dry bulb temperature?

No one has answered the original question yet.

Look in ASHRAE. It is 70, and the site I am designing for is less than 0.25 miles from the coast.

Eureka, California. The main cooling load is the equipment load in the building. 64 percent of the total cooling load is equipment and lighting load.

How do the ratings of split system air conditioning systems vary from the published values of total and sensible capacity (which are generally published at ratings of 85 to 105 degrees F) if the...

What air cleaners are available to clean air from galley, and laundry areas sufficiently to recirculate the air back to a centralized system?

I just answered my own question, which i should not have asked. It is obvious in the program.

How do you size a 100% OA unit using the Carrier HAP program?

In a warehouse what would a typical ridge vent velocity range be?

No problem really with the R-22 phase out. Just replace it with R-422B. Here is the info: http://www.icorinternational.com/nu22b.html

The Carrier book was probabally the very first book I bought when I was just starting.

I also found a good answer in the Carrier "Handbook of Air Conditioning System Design" on page 1-94, table 43c: It lists the values of infiltration to use for a shipping room door per square foot for...

Does anyone have a good method of estimating the infiltration thru a loading dock roll up door?

Could someone please answer the question?

If you have an industrial warehouse, in a hot humid climate, and what is being stored is not sensitive to heat or humidity, then what air change rate would you use for ventilation? It is only to be...