CAPTIVE AIRE MAKEUP AIR UNIT NOT WORKING

[@alexdavis2082]

Great video, I have been using collapsible hoses for a few seasons, so much lighter then regular especially for roof work. I coil them up into 5 - 7 gallon buckets with spin on lid adapters, a 100 ft will fit snug into a 5 gallon, use the 7 if you want to store the coil gun and other accessory's. The material quality has improved in resent years, the ones i have came with a 5 year warranty.

[@williegillie5712]

I’m glad to see you diagnose the problem. Seeing the unit run after the fix would be great.

[@brianprelgo4553]

Great step by step troubleshooting you’re making me a better tech every video! 👍🏼

[@pigup2]

Not a tech, but I think this guy's professionalism and workmanship are inspiring to any one who does work.. I definitely think "what would Chris do?" while I'm doing a job and it helps me choose to do things as a professional as I can.

[@101pirate2]

I recently finished my training school and your videos are very helpful for troubleshooting it gives me new ideas new ways of looking at problems thanks 🙏

[@rgould85]

Great video showing troubleshooting, rather then just replacing random parts. My experience with captiveaire is that they plug up the mister, plug up the pads, then leak all over the roof.

[@shanebehm8251]

We'll done! I just learned a huge amount about those mau's. They used to really intimidate me.

[@HVACRVIDEOS]

I will be going live on KZbin this evening 11/25/19 @ 5:PM (pacific time) to discuss my most recent uploads, and answer questions from email’s , KZbin comments, and the Live chat come on over and check it out if you can. kzbin.infolive

[@cbcb4946]

That is an excellent example of troubleshooting keep them coming thank you

[@DamonW95]

I've been in school for a few weeks for HVAC/R and I've been worried about my capability of becoming a good technician, but watching you has helped tremendously you make everything seem so simple!

[@RodrigoRamirez-fc5hv]

They need to show your videos in schools as training.

[@RodrigoRamirez-fc5hv]

I think your troubleshooting skills are very good.

[@reza49363]

I love your videos, your videos are like a professional school, God bless you, It is realy not easy to make these videos while you are working, I do this every day I can tell how hard is to documents all these information and experiences for other techs for FREE MILLIONS THANKS TO YOU👍❤👌👍👍👍👍👍👍👍👍👍👍

[@deoranferguson5657]

I must say I love ya KZbin channel for a young HVACR tech you make it very easy to understand and the video helps me a lot

[@JohnDoe-pn6sf]

Man what a great video. Worked in hotel maintenance and saw these bad boys installed in a new hotel. Opened them up to catalog for spare parts. Just recently quit and got into the trade and watching you walkthrough and diagnose has helped tremendously in learning the trade. Work, drive home listen to Brian Orr, hit the RACT manual, drive to class listen to Brian Orr, class, drive back, watch your KZbin videos then hit the bed and repeat. My mentors always told me those first couple of years you will eat, live, breathe refrigeration and he's wasn't lying. I'm finding so much passion in this trade more than any other job in my life it's insane. Just hope I don't burn out or end up hating it later

[@R-8.0]

John Doe HVAC/R is a great trade to be in. I do residential HVAC for a living and been doing it for 10 years. Do some light commercial at times but not a lot of commercial and industrial like this channel is. Which this channel is awesome. I’m on a commission base pay with residential, commercial calls it’s just hourly pay and with the commission I’m making a killing and really not having to up sale a bunch of stuff unless it’s needed just doing my job and I’m upwards of 70-100k a year. It’s a very rewarding trade to be in and learn and it’s one you have to want to do. Definitely stick with it

[@fabianodasilva]

I see your videos very much I'm from Brazil and I work in the refrigeration area too and I learn a lot with you thanks for the videos

[@j.f.3980]

Thanks a lot buddy I fix same issue because of your step by step troubleshooting again thanks

[@RJMaker]

The only thing I would have done (and you may have) was to check the pressure switch hoses/ports for blockages.

[@AG-tg9in]

Those damn spider eggs lol it’s a habit once I found out that it happens regardless if new or old. Hint hint people’s this mans giving you people tips. Nice video :)

[@richardsegui1128]

Sunday Afternoons has some great Sun/UV protective hats. They also cover the neck. Some have air vents that don’t let the sun in.

[@noctilucent8241]

Great job as always. I enjoyed seeing you go through the schematic and everything! Good job!

[@HVACRVIDEOS]

Thanks bud

[@HamiltonMechanical]

we have nothing like this in east tennessee lol. What a neat unit. That timer mounts with the same hardware a PLC does. Your videos are very inspiring. I may have to take up hvac repair as a side hustle. I've been repairing the electrical side of residential units for my friends for years now, currently in school for industrial electricity.

[@fokuspimp360]

One of the best step by step videos I have seen. Good job man, I really, really enjoyed the explanation from the ladder diagram to the SP test.. keep it up, I’m subscribing to your channel

[@HVACRVIDEOS]

Thanks bud

[@boveh5323]

Great content. Thanks for the videos man, they do help a lot! Hope to keep seeing more.

[@jccenteno8940]

Good call on shutting off the gas line , thanks !!

[@Eddy63]

Good troubleshooting Chris ...

[@eddiewhaler1]

Good Lord... You even cleaned up the roof after washing those filters. That's Professional.

[@jessecheverria5617]

Your a great technician and ur videos are great thank you for sharing

[@funkybioped]

Thanks for the tips and sharing the experience.

[@oac66]

Thanks for the info. Didn’t know how these unit work

[@snoopyjc]

I have that flex hose on my back deck - so lightweight and versatile. I had bought an older one that blew out but the black one seems to work well - I’m into my second year with it.

[@jameswasher3938]

Ok, a third comment from me. Sorry, but.. I just wanted to say how much I liked this video. Excellent job explaining everything, great camera work. It's a pleasure to see some of this large (for me) equipment. I especially like that you took the time to go to the schematic and show how it is wired, and then go to debug steps. Very nice.

[@zambouraymond5071]

That was a very interesting video and very educating, you look so pro on your work, l also like the you explained to help viewers understand. Keep it up👌👌🙏

[@chriscooley906]

Great work Chris, it’s hard to improve on the work your doing, because you prove your theory. Appreciate you.

[@MRICE-qe4sv]

There’s a customer in Houston that uses only captive air and it uses a split style A/C system to cool/dehumidify the make up air. Condensers mounted ontop on MUA unit.

[@tarunm4534]

I liked the new technique very helpful indeed

[@crusherbarny]

I liked this one! Lots of detail and the new way for your camera is great!

[@donnierobertson3088]

Great job again like always

[@HVACRVIDEOS]

Thanks bud

[@walkingfreak]

i would have put some degreaser on those filters just to get them a little more cleaner. Always mind blowing how much crap comes off them either way.

[@miguelrojas3394]

It would be cool if you make more videos about makeup air,so we can understand little bit more about it thanks so much.🙏🙏🙏🙏🙏🙏🙏

[@mychoclabwinston]

This is over my head, never worked on something like this

[@Tonyhvac]

Wow u a 20 out of 10 on my book u a bad boy Chris 👍🏽

[@akhermit5213]

Interesting. I have worked on countless Captive Air units, but have not seen any with evaporative coolers. All of the ones here are heat only.

[@FlyEaglesFly19111]

Diddo

[@alexanderlewis239]

i have never come across an evaporative cooling AHU,,,.... must work on the principal of a cooling tower ,, .. nice video, thank you.

[@SeanMackBuffaloStyle]

The inlet and outlet of the blower would be external static. I have seen static jump around on long duct runs with bends, very turbulent. I would check there are no fire dampers partially closed or the plenum diffusers are partially closed off.

[@steve19841117]

thank you for share Mr. Stephen good job

[@sterlingarcher46]

Those orange Belimo damper motors are all over the place over here , I didn't know you guys used 'em as well , nice to see a familiar face !

[@jameswasher3938]

Just wondering, you first thought perhaps the dirty filters might have been causing the issue. Good guess. Did you disable the unit before removing the filters? I ask, because if you didn't then one would expect the evaporative unit to spring to life when the filters where removed.

[@geraldschilli8870]

Speaking of garden hoses, on your contract customers, have you ever considered just leaving hoses on the roof permanently so you don’t have to take the time to bring hoses up from the truck & then take more time to put them away? I did that on many occasions & believe me the time you save by keeping hoses on the roof definitely justifies the cost of the hoses.

[@HVACRVIDEOS]

I will discuss this on my Livestream tonight 3/15/21 @ 5:PM (pacific) On KZbin come check it out kzbin.info/www/bejne/qIuQpHedg9CfnKs

[@wh1zkidd]

Your videos are great!!!

[@HVACRVIDEOS]

Thanks

[@knighthvac4876]

Great video and information!

[@movax20h]

I like this unit. So clean and nicely laid cables and panels. The temperature controllers are a bit old school, but otherwise it is a nicely designed on. You mentioned in another video that it gets a big winds into inlet side which might result in problems. Any plans to fix it? (shade it, rotate, or something).

[@RJMaker]

DUDE! Fantastic Video. Thank You!

[@Android_Warrior]

When I grow up I want to be like Chris!!!!(and I am 64! 🤭 🤭 🤭 )

[@prophetfgsm]

There are typically dampers on the burner that can be adjusted. You should adjust those instead of the pressure switch. Some of them also have dampers on springs that automatically adjust the air pressure, perhaps springs are weak cause the dampers to not adjust properly?

[@prophetfgsm]

on 2nd tought the weak springs would cause to low a drop, not to high drop. Perhaps rusted up hardware if it's a spring type damper preventing it from opening or loose dampers that moved around if they're fixed?

[@JD_Infante]

Awesome vid.. anyone else catch the sediment trap on the gas line that was piped wrong? Things like this drive me nuts.

[@versacecooks9080]

Very good video.

[@briancarlisi2224]

I learned a ton from you on this one! Why not remove all the screens before cleaning to test if the switch reset? Just wondering. Also, did you leave a tag on the internal gas valve about the adjustment to the pressure switch in the event another company comes out to work on the unit? Maybe you did and did not mention. Again just wondering.

[@HVACRVIDEOS]

No I didnt but that would have been a good idea. I am the only person to work on this unit. They wont use anyone else

[@Guyhakverdi]

Pressure tubes were clear right ?

[@hangngoaigiare]

Those two ports test pressure drop across the burner

[@MMAisBESTT]

I was in Palm Springs last week. It was ungodly hot

[@MrReedZachari]

When that pressure switch @ 11 minutes trips it sends power to that terminal? It was strange seeing basically 120v on the meter & it being an open circuit? What did I miss?

[@MegaDee911]

Good job.

[@danpmatz]

so it does not have refrigerant it just uses water to cool air? like a swamp cooler?

[@HVACRVIDEOS]

Correct but it adds a large amount of humidty so it will only work in dry climates

[@mrbyamile6973]

When I got started in the trade I lived in Washington State (high humidity) it wasn't uncommon to find evaporative coolers in MAU with no water plumbed to them.

[@shadowsiren3058]

One major flaw about this unit is there is no recirculation pump. Your just wasting water

[@jaymesrod4209]

in my experience all the CaptiveAire MAU are like that. Pretty dumb indeed.

[@mojoemurphy]

Well, avoid water cooled ice machines then #triggered lol

[@MattTrevett]

Where does the water go? Just a short burst onto the media.. perhaps a little ends on the bottom, doesn't that also evaporate?

[@robertwheeler8476]

What you are saying is that you want to breed legionaire's spores

[@Caleb.0714]

That unit looks pretty new

[@throttlebottle5906]

ditto on the something is wrong to make the pressure switch trip... didn't see/pay attention to the full layout of unit, but wouldn't a dirty evaporator cell cause high static pressure and trip that pressure switch?

[@FlyEaglesFly19111]

WOW a ice piece of equipment.. still shiney. You guys do the install? Still under warranty? Good stuff chris.. keep safe and hydrated brotha. Come to the East coast..you'll be soaked in minutes from our humidity.

[@HVACRVIDEOS]

Yeah I would lose my mind in real humidity

[@FlyEaglesFly19111]

I bring like 3-4 shirts a day..thank goodness for UR..freebies. love them bright yellow safety shirts for roofs.

[@Eman5697]

Do you run your own company? If so do you guys do installs also? Or mainly just maintenance stuff.

[@Gcanno]

Thank you

[@IFIXCASTLES]

Good job!

[@dodgerblue182able]

Just curious, why didn't you pull the metal mesh and see if the pressure switch closed. Then know it is the mesh, clean them, etc.

[@coolezum]

Good job. What type of facility is this equipment for?

[@HVACRVIDEOS]

Restaurant

[@Guillotines_For_Globalists]

Does that gas trap on the horizontal run actually do anything?

[@frankmashione139]

Good video

[@joshuapearson2857]

So, I'm not an HVACR tech, but I find it fascinating. If I may ask, what could happen if you left the gas on, and the system made a call for heat, brought the direct fired gas heat online with the pressure switch adjusted out of factory spec? Risk of monoxide poisoning, fire...? Thanks for posting!

[@HVACRVIDEOS]

The pressure switch is a safety device that was factory set. Once you adjust it out of the factory specs you are setting yourself up for a liability if something bad happens such as a fire

[@jameswasher3938]

Looks like you have the same manometer as I do. Do you ever use the pump to determine the switch activation pressures? I've only attempted to do so once, and the switch never toggled. Bad switch.

[@jrsmyth9761]

Why are you at top end of the pressure switch/static range? If your specs are .15 - .80 and you are at .75 consistently I would question initial start up and air delivery. Pressure switches have some range of open/close and maybe you are in that range. Initially it was not a problem, but time on that pressure switch has fatigued it. I would also have removed the hoses going to the pressure switch to see what it was actually reading. As others stated, maybe there is a blockage. Is the burner clean? Is the damper fully open? Did someone block the outlet? If a restaurant, is the indoor grill(s) full of grease?

[@farmerhunterjr]

This I what I was thinking. Ive seen those dampers mess up and cause those pressure switches to shut it down.

[@HVACRVIDEOS]

Yeah you made some good points about being at the high end or the pressure safeties, the dampers were working properly when I was there. And the tesp was well within range so that's why I leaned towards a faulty switch. When I go back to replace it i will dig in a little further. Thanks for leaving some feedback!!

[@throttlebottle5906]

not sure of the airflow direction, but I'm thinking the evaporator cell is dirty and can cause the back pressure

[@EGeminis]

a our r e best even my costumer r not in this level is better knowing this trouble shooter thanks

[@MartinMartinez-sc3ko]

Why you don’t check the belimo actuator

[@jeffgrant6914]

Nice video

[@lee-johnson]

What are the factory settings of pressure switch, or does the book say?

[@HVACRVIDEOS]

It said the range both pressure switches would operate in but It did not say the actual cut in and cut out. I will do some research and find out more when i get the new switch.

[@lee-johnson]

Sometimes it’s on the switch itself.

[@HVACRNorth]

great job.

[@tallbrian100]

Those pressure swiches are crap, had one of those that had bad switch on a brand new unit.

[@christianlords1340]

We just opened a restaurant using a captive air supply unit without heat. Can we add just a heat unit to this? Do the systems are modular?

[@HVACRVIDEOS]

Possibly, you would need to get ahold of captiveaire and see if your system is compatible with a direct fired system

[@garypoplin4599]

0:11 - “Makeup” in this context is one word, not two. So, why are there three letters in its abbreviation there on the unit?!

[@The495marauder]

Where’s that unit installed? Iran?

[@The495marauder]

Curious George your helper?

[@nathancrosswhite8292]

You know alot about this unit. Did you learn all this one the job? Or have you worked on these same units in the past?

[@ryanlockhart2255]

It seems to run on some form of electricity 😂🤣

[@julianfigueroa9525]

How do I know everything you know, without costing customers money or the company money by making mistakes cause I’m a amateur? I work with a company that just trained me for 2 weeks but I still having trouble understanding I really want to know. Have you been thru this, without getting fired or upsetting the customer?

[@HVACRVIDEOS]

You need more time as an apprentice, you cant learn it all in 2 weeks

[@julianfigueroa9525]

The company I work for it feels like they think I should know everything cause I went to hvac trade school I want to be as professional as you. I really want to know. Thanks 🙏

[@shadowsiren3058]

When is your next stream Chris?

[@HVACRVIDEOS]

Monday at 5pm Pacific if work doesnt get in the way

[@Penkazo34]

Wouldn't those metal panels be piping hot because of the sun?

[@mysock351C]

They do get hot from my experience popping panels on rooftop units, but not so hot that you cant handle them for periods of time. Also helps that this one is unpainted and looks to be galvanized steel or something similar that's reflective.

[@FlyEaglesFly19111]

Yes they get hot..sometimes to hot to touch.. and as you see blinding from the sun. As the zinc coating wears down it gets slightly better.

[@nathanbelden8269]

What is brand/model for microphone

[@HVACRVIDEOS]

Rode Pro Caster

[@OldManBadly]

Giant swamp cooler.

[@ray77j]

Total external static pressure? Total pressure: in & out of fan, external pressure: in & out of unit. fyi

[@ray77j]

Nice videos!

[@shadowsiren3058]

I mean it is only meant for dry climates. You shouldn’t use for cooling because it creates humidity. Just call it a commercial humidifier.

[@vondarkmoor1]

commercial swamp cooler :P

[@shadowsiren3058]

Ether way

[@mrtodd3620]

I don't do hvac. Can someone give me an overview of what a makeup air unit does?

[@HVACRVIDEOS]

Ok so if you take a paper bag and put it over your mouth and suck it will collapse right? .... so in a restaurant we have exhaust fans that pull the smokey air out of the kitchen that is produced by all the cooking appliances and those exhaust fans are pulling so much air that they are actually pulling all the doors to the building shut. So we use makeup air to replace the exhausted air so the building operates in a slightly positive pressure instead of a negative pressure. This is a crude explanation of building air balance. Make sense??

[@mrtodd3620]

@@HVACRVIDEOS Yes, makes sense. I had an idea of what the makeup air did, but I couldn't think what it was needed for, so it makes sense that the fans in a restaurant would create a need for makeup air. So I am guessing that the makeup air unit is creating cooled air through an evaporative process. Does it also use normal refrigeration to cool the air as well?

[@harrydickson4575]

👍👍👍👍

[@shadowsiren3058]

What state is it?

[@russell4309]

👍

[@shadowsiren3058]

Because I’m in a different country then I normally would

[@mysock351C]

7:00 Stupid comment but his finger looks like its CGI green screen for some reason. Matrix glitch lol.

[@movax20h]

Not for me. KZbin tells me I am using vp09.00.51.08.01.01.01.01 (247) / opus (251), 1280x720@30 codecs and size. Maybe it have some minor corruption in other file or something.

[@throttlebottle5906]

lol, it does look odd, just the camera being too close can do that

[@mysock351C]

@@throttlebottle5906 Yeah think its the focus combined with the satin plastic coating on the schematics.

[@wazza33racer]

HOLY BEEJEESUS! A unit that doesnt look 1000 years old....................

[@vondarkmoor1]

you probably coulda saved some time and tested if the filters were the problem by just removing them during troubleshooting

[@DJSubAir]

He most certainly could have done that, but his point is how to troubleshoot the electrical side of things and to trace out why the particular circuit doesn't have power to make it function. Remeber that this is for educational purposes for us who want to learn and his own technicians who watch the videos as well. Remeber the bigger picture is always most important