Chillers come in different shapes and sizes, but every chiller unit has one thing in common — a nameplate that helps you analyze, optimize and economize your performance.
The serial number is unique to each unit. Some manufacturers code the year made into it, but not all do and there is no standard. The model number also contains a hidden code. The cooling capacity of the unit in tons is usually the first two numbers that appear. It also tells you the evaporator and condenser shell size and type. The factory charged information will not only tell you how much refrigerant is in your unit, but also the type.
The run load amperage is the electric current needed to run the fan and pumps, and the compressor motor speed once started. The locked rotor amperage is the short-term surge of energy needed to start up the compressor.
Minimum circuit ampacity and maximum current overcurrent rating come in handy when installing a new unit to ensure the breaker and wiring are properly sized.
You can often find the date manufactured on the nameplate. The required voltage, frequency in hertz and the number of phases will be clearly marked. And the name of the manufacturer can also be found.
Solve problems, analyze upgrade opportunities and estimate energy consumption, all with the help of your chiller nameplate.