Conversion Factors And Formulas; Conversion Factors; Formulas - HP rp4410 Manual

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
— 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 ⁄
• Single phase
kVA = V × A ⁄
1000

Formulas

• kVA = Voltage x current (amps)
• Watts = VA x PF
• BTU = Watts x 3.41
40
–4
tons
1000
Chapter 2