Patent Number: 
Section: claims

1. A system for monitoring the health of a system comprising:a plurality of sensors for obtaining a plurality of data associated with at least one health condition of the system;a memory for storing the plurality of data and commands, wherein the commands in the memory comprise commands tostore, for each of a plurality of system capacity levels, first steady state data for a plurality of parameters associated with the at least one health condition of the system,obtain normal operations data corresponding to the plurality of parameters during a plurality of sample windows during steady state conditions of the system,associate the normal operations data with the first steady state data based upon a sample window system capacity level for each of the plurality of sample windows,compare, for each of the plurality of parameters, the normal operations data with the associated first steady state data, anddisplay the results of the comparison; anda processor for executing the commands. 2. The system of claim 1, wherein the at least one health condition of the system comprises one or more of:noncondensables in a chiller system;low refrigerant;oil in an evaporator;fouled condenser tubes;fouled evaporator tubes;low condenser water flow rate;low chilled water flow rate;water bypassing condenser tubes; andwater bypassing evaporator tubes. 3. The system of claim 1, further comprising:a network operably connecting the plurality of sensors and the processor for communicating the plurality of data associated with the at least one health condition of the system to the processor. 4. The system of claim 1, wherein:the commands in the memory for comparing comprise commands to identify each of the plurality of sample windows wherein the total number of parameters compared is the same as the total number of parameters indicative of the at least one health condition, anddetermine the percentage of the plurality of sample windows identified for a plurality of selected intervals; andthe commands in the memory for displaying comprise commands todisplay, for a selected timeframe, the percentage of the plurality of sample windows identified for each of the plurality of selected intervals.