Great video. If I could just correct him on one thing, The louvers above the fill are not inlet air louvers. They are drift eliminators. Their purpose is to collect water vapor so it can drip back down instead of going out the top through the fan.
Wow. That was very good. Maintenance is key to equipment longevity and preventing unplanned down time. Unfortunately companies under bid and don’t provide techs sufficient time to do the right thing. Over greasing is my biggest pet piv. Thank you for this presentation.
I wasn’t aware of over greasing being an issue. What could possibly happen to bearings if there over greased? What’s a good rule of thumb for how much grease to use? Thanks
I have seen some nasty towers over the years. I had one customer that had tower no sales and strainers so plugged, that the machine was doing a 28 degree temp rise on the condenser with the machine only loaded to 30 percent lmao
You guys touched on pretty much all service points. Just an FYI, a closed loop tower is commonly called a fluid cooler too. Which has many advantages over an open loop. The use of the fan without the water in the basin, use of the spray pump separately with no fan, or a combination of spray pump and fan for higher load days.
Really helpful and knowledgeable. I do not do chillers but am interested into getting into the field of it and this was really helpful. Keep up the good work 👍
I took over maintenance of a chiller and a tower in an 8-story apartment building. The residents had been complaining for a couple of years how warm it was. I went up into the shack and I just about quit then and there, but, I sometimes like a challenge and this was going to be one. The chiller was okay but the condenser was a disaster. The fan motor was out, The fan bearing was seized, the belt lay in pieces on the gravel, the waterfall and sump were totally blocked with scale-mr. fremont hadn’t been through in years. The pump in one leg of the building was burned out. Those residents were paying some pretty good money to live there too. Took me about four months to clean up and fix the mess and get the water back. Then it was time to start going through the blowers in all the apartments. The coils were plugged in all of them and I had to replace over 20 motors. A few of the squirrel cages were locked up. I moved on three years later leaving one sweet-running plant for the next guy. That was what I call a very satisfying job.
Hello I am a supermarket refrigeration service technician and looking to go for chiller service technician. What do I need to have to become chiller service technician and what is life compared to supermarket technician?
I agree ! Being in maintenance limits your training and knowledge base . I get information only if I shadow others that are “ ok “ with me shadowing them , otherwise my training was only in finishing, painting and drywall.
Damn 20 years? I did industrial and some commercial work for 3 years while I do appreciate that cooling towers fed me and bought me some toys I couldn’t stand it😂
Can Manny or yourself do a video on Well-Water systems? I am seeing these more often lately on accounts in the Caribbean. I’m sure it’s becoming more common due to advances in technology. 👍🏽👍🏽👍🏽 great work everyone!!!
Thank You ! Good Tech. INFO. In The Video, I See What Has Changed From My Time Water Treatment ? Reports ? Building Engineer / Help, Not Painting Pipe ? Cust / Bank Just Don't Care ALL Though Away World Now
Great vid. I see you standing inside the tower with a ladder next to you. Isn't that considered confined space are? I know it would be for us unless it was declassified, I would recommend replacement with all the structural cracks. Upsell!!!👍👍👍👍👍👍👍👍👍👍
After doing 2 years of light commercial. I applied for an entry level hvac position at a hospital. They have 2 cooling towers but unfortunately we do not service or mess with the chiller, Only the air handlers. I wish I can get my hands on the equipment
Manny did a great and through explanation. He knows what he is talking about. This channel's presenter is a novice. Manny is a pro and can explain everything.
Ok I don't hear nothing about the wet bulb temperature design, the approach temperature, blade tip clearance, density ratio, angle of the blade. I see that the tower has 5 blades, therefore angle of each blade should be 72°. He didn't speak on the importance of how to calculate evaporation rate etc.
I didn't hear anything about cooking tower effectiveness and how to determine the efficiency performance of a tower. Tower fan should not exceed 0.30kW/ton. Did he even mention tower approach. I can see in the video that the tower is not located in a good place, is boxed in surrounded by a wall & structure too close to it. Tower is located in a very low spot
I work for a company we pressure wash that whole unit and we treat the tower with are in house chemicals blends.we clean them out every 6 months to 1year we clean out alot dirt and algae off ....Apollo technology .. in California
The powerloss and inefficiency of a belt driven fan is insane. You lost almos 90% in the worst cases the power from the motor, it means your powerbill gets inflated and your building overheated. instead of a direct drive that has 0 power loss... thank god engineers noticed that... a little too late but they did notice.
Ok is it a counterflow tower or crossflow tower? Counterflow towers have spray nozzles. Crossflow towers Ave a pan at the top and the water comes down via gravity and condenser pump discharge force
Up by the motor and fan we call those mist eliminators. We also have lots of fluid coolers for towers. Most companies here have companies that specialize in towers perform the PM. We occasionally change the belts and fill and air inlet fill.
Yeah its definitely a crossflow cooling tower. Something which he made no mention of. This guy is collecting a paycheck and knows nothing about cooling tower. What hes speaking about are basic common sense knowledge of towers.
What are your thoughts on this industry as far as a later introduction to the trade ? I’ve been in the trades for decades and now maintenance for about 6 years. I learn readily but training g is limited unless I’m with a great tech . Would apprenticeship be the way to go ? I still have a lot of interest. Thanks
It is a very tough situation the trade is in as a whole. If you can find a really good company that has good techs to be an apprentice at that is very beneficial but that's not a whole lot different than just working with a company that has good techs. It really is one of our biggest issues right now, we've lost so much of our senior experience. Those of us that are left are having to train a large volume of people at a time and it is very difficult at every company. One great thing is there is a ton of opportunity in the trades right now to do just about anything you want, but it's because of the lack of experience as to why those opportunities are there. What this means is that those who are willing and capable will have to strike their own way more than they'll be able to be trained. I hope that makes sense. And is somewhat encouraging or gives some form of direction?
This is off topic, but I have a similar system and looking for ways to conserve power while tenants are not in the building (Fri-Sun). Can I turn the 4 AHU's off, there are 2 on each floor, 2 floors. If I turn the AHU off, what actually keeps the water circulating in the closed loop water chilled system? Thanks
If you turn the AHU off water will not flow through your coil cause your actuator will close but your circ pumps should stay on moving the water. Find out where your circ pumps are
If the pump fails the chiller would shut down on the safety flow switch. If the tower fan fails the chiller would shut down on pressure switches after a few minutes
Great post. Unless I missed it, our PVC? inlet air louvers are directional. Many different vendors have worked on both of our cooling towers due to emergency availability. When I started doing my own PMs I found them all installed so the water would be diverted to the outside of the tower. Not being able to find any firm answers from our local vendors, I turned them around. It would make sense to me that you’d want any splash or residual water going back into the tank not out. Did I do the right thing? Excellent info here.
