HP 9000 rp4410-4 Site Preparation Guide, Third Edition - HP 9000 rp4410/rp4440 - Page 40

General Site Preparation Guidelines Conversion Factors and Formulas Conversion Factors and Formulas The conversion factors provided here are intended to ease data calculation for systems that do not conform specifically to the configurations listed in this Site Preparation Guide. Listed below are the conversion factors used in this document, as well as additional conversion factors which may be helpful in determining those factors required for site planning. Conversion Factors • Refrigeration - 1 watt = .86 kcal/h - 1 watt = 3.412 Btu/h - 1 watt = 2.843 x 10-4 tons - 1 ton = 200 Btu/min. - 1 ton = 12,000 Btu/h - 1 ton = 3,517.2W • Metric Equivalents - 1 centimeter = 0.3937 in. - 1 meter = 3.28 ft. - 1 meter = 1.09 yds - 1 in. = 2.54 cm - 1 ft. = 0.305m - 1 CFM = 1.7 m3/h • kVA Conversions Three phase kVA = V × A × √3 ⁄ 1000 • Single phase kVA = V × A ⁄ 1000 Formulas • kVA = Voltage x current (amps) • Watts = VA x PF • BTU = Watts x 3.41 40 Chapter 2