Enter your search terms Submit search form

Design Condition Air conditioning equipment is designed to operate at its rated capacity and efficiency at one set of design conditions. This design condition is generally considered to be at an outside temperature of 95 degrees Fahrenheit, and at an inside temperature of 80 degrees Fahrenheit, with a relative humidity of 50%. When a piece of equipment is rated at 3 tons, it will perform at a 3- ton capacity or 36,000 Btu/hr under the stated conditions. When these conditions change, so does the unit capacity, (net refrigerating effect). 1 ton of refrigeration = 12,000 Btu / Hr. 288,000 Btu / 24 Hr. 1 horsepower = 746 watts 3.413 Btu = 1 watt 1000 watts = 3,413 Btu

Home / My Links / HVAC News / Links / Organizations / DDC Glossary / Ohm's Law / Dip Switches / Puron / TCP/IP / Microzone II / Acronyms / Cat 5 / A/C Design Super Heat / Subcooling What You Should Know about Refrigerants When Purchasing or Repairing a Residential A/C System or Heat Pump       Sponsored Link R L W Woodworking   Are you having trouble with your Microzone II Controllers? RWGD1900 HVAC2000 Copyright © 1999/2000/2001/2002/2003/2004/2005/2006/2007/2008 All rights reserved / HVAC2000 went Online May 1999 UpDated May 8, 2008 E-Mail HVAC2000

a/c, absorption, acca, air conditioner, air conditioning, air quality, american standard, ari, ashrae, bac, bacnet, boiler, bryant, btu, btuh, building, building, owner, carrier, cfc, chiller, clean room, cold, comfort, comfortmake,r construction, contractor, control, controls, cool, cooling, cooling tower, ddc, dealer, duct, ecommerce, energy environment, environmental, evap, evaporative, facilities, facility, facility management, fan, furnace, grainge,r hcfc, heat, heat exchanger, heat pump, heating, hfc, hvac, hvac&r hvac/r, hvac2000, hvacr, iaq indoor, air quality, johnstone supply, lennox, maintenance, manufacturer, mcquay, mechanical, mestek, ozone, ozone depletion, plumbing, preston, psychometric, charts, pump, puron, r11, r-11, r12, r-12, r134a, r-134a, r22, r-22, recycle, refrigerant, refrigerants, refrigerate, refrigeration, retrofit, rheem, rses, seer, sheet, metal, software, swamp, thermal, thermostat, trane, vav, vvt, ventilating, ventilation, york