Field glossaryTon12,000 BTU per hour of cooling, the unit of plant and chiller capacityUsed across 3 Anvilfield field guides, most in HVAC. Also defined as12,000 BTU per hour of heating or cooling capacity Where this shows upHVACChiller plant sequencing optimizationHVACHVAC system types field guideHVACChiller plant startup commissioning Related termskW/tonLiftApproachDelta-TDOASIPLV / NPLVLead-lagLow delta-T Back to the full field glossary