Calculation formulas
Current:
The phase current I in amps (A) is equal to the real power P in watts (W), divided by the product of the power factor PF and the RMS voltage V in volts (V): I = P / (PF * V) The phase current I in amps (A) is equal to the apparent power S in volt-amps (VA), divided by the RMS voltage V in volts (V): I = S / V
Convert tons to amps, you must first convert tons to BTUs per hour, after which you can convert this value to watts, then use the formula amps = watts / volts to solve for amps. Convert tons to BTUs per hour by multiplying it by 12,000. Given an air conditioner with 2 tons of. RLA stands for Rated Load Amps (not Running Load Amps). This value is recorded when the system is tested @ ARI standards. Also, I was at a Carlyle compressor class and the instructor showed two different compressors where amps or HP doesn't correlate to BTU/H. Of course, that was on semi's, but I would think that hermatics would be the same.
Apparent Power:
The apparent power S in volt-amps (VA) is equal to the product of the voltage V in volts (V) and the current I in amps (A): S = V * I The apparent power S in volt-amps (VA) is equal to the real power P in watts (W) divided by the power factor PF: S = P / PF
Active or Real Power:
The power P in watts (W) is equal to the product of the phase current I in amps (A), the RMS voltage V in volts (V), and the power factor PF: P = I * V * PF The real power P in watts (W) is equal to the product of the apparent power S in volt-amps (VA) and the power factor PF: P = S * PF
Btu To Amps Calculator
Convert Btu To Amps
Heating/Cooling:
The formula to convert power in watts (W) into BTU(IT) per hour (BTU/h): P(BTU/h) = 3.412141633 * P(W) The formula to convert power in BTU(IT) per hour (BTU/h) into tons of refrigeration (TR): P(TR) = P(BTU/h) / 12000