A-8
• Make allowances for heat dissipation by equipment to be added during any planned future 
expansion.
• Calculate the heat dissipated by any other factors not considered above. These factors include 
situations particular to the site and room loss factors.
Table A-7. System Heat Dissipation Worksheet.
Factor BTUs/Hour (Watts)
System Heat Dissipation
Site Variables
Interface Auxiliary Equipment
Lights
Personnel
Future Expansion
Other Factors
Total Heat Dissipated
Total heat dissipation in tons of AC
(1 ton = 12,000BTU)