JOHNSON CONTROLS
190
Form 201.47-ICOM1
Issue date: 17/11/2022
The following factors can be used to convert from
English to the most common SI Metric values.
Table 40 - SI metric conversion
Measurement Multiply English unit By factor To obtain metric unit
Capacity Tons refrigerant eect (ton) 3.516 Kilowatts (kW)
Power Horsepower 0.7457 Kilowatts (kW)
Flow rate Gallons/Minute (gpm) 0.0631 Liters/Second (l/s)
Length
Feet (ft) 0.3048 Meters (m)
Inches (in.) 25.4 Millimeters (mm)
Weight Pounds (lb) 0.4536 Kilograms (kg)
Velocity Feet/Second (fps) 0.3048 Meters/Second (m/s)
Pressure drop
Feet of water (ft) 2.989 Kilopascals (kPa)
Pounds/Square Inch (psig) 6.895 Kilopascals (kPa)
Temperature
Example: (45.0°F - 32°) x 0.5556 = 7.22°C.
To convert a temperature range (that is a range of 10°F)
from Fahrenheit to Celsius, multiply by 5/9 or 0.5556.
Example: 10.0°F range x 0.5556 = 5.6 °C range.
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