JOHNSON CONTROLS
108
FORM 160.81-O1 (1020)
ISSUE DATE 10/05/2020
SECTION 4 - PRINTERS
SI METRIC CONVERSION
The following factors can be used to convert from Eng-
lish to the most common SI Metric values.
MEASUREMENT MULTIPLY THIS BY ENGLISH VALUE BY TO OBTAIN THIS METRIC VALUE
CAPACITY TONS REFRIGERANT EFFECT (ton) 3.516 KILOWATTS (kW)
POWER
KILOWATTS (kW) NO CHANGE KILOWATTS (kW)
HORSEPOWER (hp) 0.7457 KILOWATTS (kW)
FLOW RATE GALLONS / MINUTE (gpm) 0.0631 LITERS / SECOND (L/s)
LENGTH
FEET (ft) 304.8 MILLIMETERS (mm)
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 / SQ. INCH (psi) 6.895 KILOPASCALS (kPa)
Temperature
To convert degrees Fahrenheit (°F) to degrees Celsius
(°C) subtract 32° and multiply by 5/9 or 0.5556.
To convert a temperature range (i.e., 10°F or 12°F
chilled water range) from Fahrenheit to Celsius, multi-
ply by 5/9 or 0.5556.
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