CW-5200 Industrial Water Chiller, 2.28HP 3.43gpm Cooling System with Built-in Compressor 7L Water Tank Capacity for 40w-150w CO2 Laser Engraving & Cutting Machines

This refrigerating chiller is priced practically the same as models that simply circulate water through a heat sink with fans, so it's clearly a bargain. Does it work? In one word, yes... If you're willing to take the time to sit down and figure out the manual, written in extremely approximative English.It took me quite a while to find out the factory password: 50. Without it, you're stuck with the default behavior (lowest temperature is 20C) which is way too high for a CO2 laser.Once you figure out how to enter the factory parameter programming mode (you have to switch it on while pressing three keys simulatenously for 5 seconds: Up, Down and RST, then use the up/down keys to display the password -- 50 -- and SET) you can start updating the F1, F2... parameters. Of course, you need to look at the manual for the meaning of all these. Then, press RST to store the settings.On one hand, it really is a "set it and forget it" device. On the other, it really should not be so hard to configure! But at least you know that the settings won't be changed by accident.There are two error conditions for a variety of failures (temperature out of range, insufficient flow...) and there is a 3-wire port on the back to connect it to some emergency stop on your cutter, it even comes with a connector to wire. Unfortunately the manual contains absolutely no information on the wiring. It should be easy to figure out, but honestly, come on, one diagram and paragraph? Please?The chiller's tank fills up from the top of the unit (make sure to use a funnel!) pulls air from both sides through removable, cleanable filters, and hot exhaust is in the back, which also features barbed inlet and outlet ports, alarm connector, and power connector.TL;DR: You need to read the (poorly translated) manual carefully, but once you get a hang of it, it does a great job at an unbeatable price. The compressor is noisy.

I bought this system to replace the fish tank pump that used to operate my "cooling" for my 60 watt CO2 laser table. It works great, the only complaint I have is that it's actually built better than my Laser table, when I applied the new chiller the flow was so high compared to the old pump that it blew all the water lines inside the table off of their connections which were just "slip fit" on, so I dumped about 3 gallons of water inside the table, and then I had to buy hose clamps and clamp everything inside.Overall very happy with the product. The alarms are loud and I know it will protect my system better.

The media could not be loaded. I purchased this chiller to replace a Vevor 5200 chiller that I bought in September from another site, which was defective on arrival, and found Vevor will not repair or replace the chillers as warranty requires, claiming they couldn't get in touch with the supplier. They continually tried to get me to agree to accept a partial refund instead of having my chiller repaired or replaced. I refused, so they quit answering my messages. I have dozens of pages of my conversations with Vevor and their refusal to honor the warranty, as well as their attempts to trick me into accepting a partial refund. During my fight with Vevor, I found that local appliance repair companies said the cost of a new compressor and installation labor cost more than I paid for the chiller.After 3 weeks of fighting Vevor, I had to have a new chiller, so I bought the BestEquipt chiller here. I use it rarely, to cool a laser engraver that I make items to help with medical expenses. I maybe have 10-12 hours of run time on it, when the alarm started making odd noises, and the Normal operation indicator light flickered and went out. I have owned it 39 days, 9 past the return window.When I contacted Amazon to find out how to get warranty work done, they said to call Vevor, the manufacturer. My heart sank, shocked that it is made by the same company who refuses to honor my first chiller's warranty.I've emailed Amazon's warranty department in hopes that they will help me to get this chiller's warranty honored. I am relying on the logic that it would not be acceptable to them to have a company so disreputable that it does not honor warranty policies.If I can add the final outcome of my chiller problem, I will let you know what happens.

The parts and the design of this chiller are the same as the S&A version. However the quality of construction (tin solder joints here, silver solder in S&A) is evident everywhere. Neither have service ports so both are very difficult to repair. With the S&A at $650 and this at $400 the $250 is more than half way to a replacement unit when they fail. Be aware this ships in "Intelligent" mode which is not likely the mode you what your want for Co2 laser coolant. Default Intelligent mode just keeps the coolant 2°C below the room temperature.

This unit is able to keep my laser water at 75 degrees despite the room temperature of 90 degrees. I was pleasantly surprised that it only takes 5 minutes to chill the water down to operating temperatures. If this unit keeps up this good service for a few years, I’d buy another one.

A bit tricky to setup for an alternative purpose, and would like to know if there is a work around to set temperature to -5C (glycol use), looks like the lowest setting is +1C and I would like it colder. Working ok after 24 hours.

I had an issue with the original chiller that was sent to us. The compressor would not turn on and therefore it would not chill the water. The seller was contacted and they were very nice and easy to deal with. Over a few emails and even a FaceTime live chat, we started out by trying to do some self diagnosing to see if it was something that could easily be fixed on our end, but when we were not getting any results, they immediately shipped out another chiller no questions asked. The new chiller arrived and so far it is working perfectly.

Using this at 9C on some PC radiators to cool a 4x8 cellar to 54F, works great and been running for 2 months now no issues. it is a little loud on fan noise indoors, but that's not really what its for.