question about aquanetics chiller

[Tangboy]

I have a 120G tank set up with a 1/5 hp in-line chiller. The tank uses a Mag 9.5 as a return pump from the wet/dry, and the chiller is fed by a Mag 5 also from the wet/dry. Water is returned to the wet/dry after passing through the chiller. The chiller should be functioning properly as it was just serviced (new freon etc) however the tank will not get any cooler than 79 deg and it took 4 hours to go from 81 to 79. The chiller has a recommended flow rate of 400gph to 1000gph. Does anyone think that it might function better at a higher flowrate than 500gph or is the problem with my plumbing. Maybe I should connect the chiller to the return pump output that feeds back to the tank?

 

[Anonymous]

Where do you live? How hot is the weather (room)?

Does not sound anything obviously wrong with what you see. Check the thermostat. seting. Was the chiller running at 100% duty cycle and still can't lower the tank any more than 79F?

By using a pump with a higher flow rate, you will be able to make the chiller more efficient. However, keep in mind that pump will add heat, so don't over do it since it will do more harm than good. Flowrate of 700 gal/hr. may be even better, but make sure you use an efficient pump. Mount a Mag externally will help a bit.

 

[fungia]

very strange. i use 600gph on my chiller and it cools very fast, but it is 1/4 on a 100 gallon. i feed my chiller water back to the tank directly. i wonder if you need a bigger chiller but it sounds like something is not working like it should with the chiller you got now.

if the flow is too low sometimes the chiller chamber will start to freeze up like a popsicle and slows down the flow even more. i wonder if this happened.