For system loads less than 65–70% of full capacity, the load should be split equally between the two compressors. Once the system load is greater than 65–70% of full capacity, one compressor should be fully loaded and the other should meet the balance of the load.
Because screw compressor performance deteriorates at less than 50% full-load, try to avoid running any individual compressor at less than 70% load. For intermediate loads, the smaller compressor should be fully loaded. For large loads, the larger compressor should be fully loaded. Further research is needed to develop guidelines if the side-inlet economizer ports are active. However, the general rule still holds that these compressors should be as fully loaded as possible.
Screw Compressor Master and Slave(s) TCP/IP Settings.
The MicroController which will initiate all conversation on the network must be defined as node 100. This is defined as the master node. All other node numbers should be in the range of 101 through 174.