Cyril Silberman
29-01-2011, 05:39 PM
Need advice, I have just completed installation of a data collection and monitoring system in a marine vessel. One of the monitored systems is the a/c compressors and the galley refrigeration. All a/c compressors are water source heat pumps with conventional hermetic compressors. The refrigeration is conventional air to air.
I have provided one thermocouple for each unit compressor and attached it to the suction line adjacent to the charging valve, I am reading temperature but I am struggling to devise a logic program that will deliver useful information to log history. The intent of this system is to assist in preventative maintenance and to see trouble coming before the vessel is cruising. I also log on off cycles, water temperature, inside air temp, etc.
Any suggestions would be appreciated, even if I must add additional probes. I am not prepared to cut into the existing system and add pressure switches to the ***** lines.
Thanks, Cyril
I have provided one thermocouple for each unit compressor and attached it to the suction line adjacent to the charging valve, I am reading temperature but I am struggling to devise a logic program that will deliver useful information to log history. The intent of this system is to assist in preventative maintenance and to see trouble coming before the vessel is cruising. I also log on off cycles, water temperature, inside air temp, etc.
Any suggestions would be appreciated, even if I must add additional probes. I am not prepared to cut into the existing system and add pressure switches to the ***** lines.
Thanks, Cyril