Air conditioners are rated by tonnage. One ton equals 12,000 BTU per hour.
Equipment heat output is rated in BTUs.
Conversion rates and guides can be found in the appendix.
Use this to size the cooling load!
Your air conditioner will fail. It is only a matter of when and whether you have one to back it up.
Emergency Fan ventilationEdit
Can you ventilate into the building or the outside? What is the outside summer temperature?
Multiple air conditionersEdit
Alarm fail over
Thermostatic fail over
Differential temperature settings
Layout your air conditioners to minimize temperature variation across the room.
Found in larger systems
Eliminates static problems
Requires addition of plumbing