HVACR Videos Q and A livestream originally aired 2/28/2022 @ 5:PM (west coast time) where we will discuss my most recent uploads and answer questions from the Chat, YouTube comments, and email’s.
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So, ah, it's time to chill out and get ready for a mediocre q, a live stream if you're old enough grab yourself your favorite adult beverage and if you're not stick with apple juice, put your feet up and relax. If you have any questions, feel free to ask them in the chat and now, let's queue up the intro music yo. What is up everybody? Finally, finally, a live stream where i did something right and everything isn't screwed up, it's kind of nice, or at least i think, it's kind of nice. I guess the chat will tell me, but so far i know the chat heard the music, so that's a plus.

So i have a lot of stuff. To recap: a lot of things have been happening over the last couple weeks and it's been definitely an interesting roller. Coaster got ta, take a little time off, well kind of took some time off, went to the uh hvac school training symposium. That was really cool.

Gon na talk about that a bit on the stream tonight got a bunch of other stuff to talk about, and i definitely want to get to your guys's questions too. So remember, if you guys do have questions, make sure you throw them in caps lock. So that way, i can try to see them. If i miss any of your guys's questions, feel free to send me an email to hvacr videos, gmail.com, okay, so uh.

I hope everybody's doing well, hello to everybody. That's in the chat right now. It's awesome to see all these great normal, regular viewers and the new viewers, it's really cool. So for the new guys.

I like to do this every once in a while. So my name is chris and i am an hvacr service technician. I also run and operate a small refrigeration and air conditioning business in southern california, so um. You know i started making these videos as a training aid for my own employees and then it just kind of grew legs and turned into something that i never really planned.

On it, turning into so um, i am not the best at social media, i'm not the best at interacting with people. I try, but i'm trying to get better at it every single day. So bear with me. If i don't respond to emails fast enough or youtube comments fast enough know that you know when i release a video like, for instance, uh, yesterday's video.

Actually i released it on saturday, so it wasn't yesterday. But just out of curiosity, let's see the video that i released on um saturday evening because i released it early. Normally i do sunday, so it has 139 comments, and on top of that you got to figure. There's a couple hundred comments for the previous 200.

Something videos that are on my channel, so it's a little difficult for me to get and answer every single comment. I definitely try but uh. You know it's it's difficult! Okay. So if there's something pressing that i didn't answer in the youtube comments feel free to send me an email like i just mentioned a few minutes ago: hvacr videos at gmail.com.

So let me see what we got going on in here: hello to everybody. Welcome to the stream uh awesome it. You know it's really cool to get the support. Um i'd be kind of curious in the chat right now guys.
Do me a favor guys and girls uh. Let me know where you're from uh. I i'm curious in the chat. Go and just say, city and state, uh, city and country.

Whatever you know, let me know where you're from it's always interesting to see all the different places that these videos and these live streams reach it's very humbling to get all the feedback and the comments and different things like that um kind of makes me feel a Little kind of uh imposter-ish kind of an imposter syndrome thing because i you know when i get support and i get these emails and these comments i do feel a little inadequate like uh. I don't know if i'm quite the person to be answering these questions, but it is really cool so right on yeah, already people coming in there's people all over the place all over the states - oklahoma, california, virginia utah, arizona, huntington beach. California, that's right around the corner. From me, 25 miles from my house, i'm in riverside california, is where i'm at right on yeah awesome great people all over the country right now.

This is really really cool. Uh europe, hungry wow, that's awesome, it's so cool to see in the chat. This is amazing. Buffalo new york, quebec, canada, frisco texas, south florida just spent some time in central florida and i do have to say i kind of like the country, lifestyle of central florida.

I really do dig that so st lucia west indies, that's really cool um, boston, miami, florida, south florida, atlanta, georgia. I can't even read them all new brunswick, canada, grenada, that's really cool um wow! This is really cool. It's amazing! What what these videos and and the reach that i have just by posting some silly service calls that i perform on youtube. It's really really awesome.

This is really really cool australia. That is great. Actually, i do have quite a few viewers from australia, which is really interesting: um yeah people all over the place. This is really cool.

I really do appreciate all the support and the feedback, it's really great. So, as usual, i got a bunch of topics that i want to cover in front of me. I got like a bullet point list and then i want to get to your guys's questions. So if i uh, if you want to ask a question, make sure you put them in caps, lock and i'll try to scroll.

If i don't answer it right away, just keep reposting it until myself or one of the moderators says to stop okay, so um the uh. What is about a week ago, i was able to go with my friends, adam bill um and uh rick from the hvac survival youtube channel and then adam and bill from the hvac overtime youtube channel and we all got to meet in uh central florida. We went to the uh, the hvac school training, symposium uh, brian orr, put it on, and his great amazing staff did an amazing job. So the hvac training symposium, it's really interesting and the way that i described it to my wife is it's a bunch of people.
Just like me, the mindset that i have the you know, i'm hyper focused on my tasks and i and i i really delve deep into them. It was a bunch of people. I know he had 200 tickets sold, but i know there was more than 200 people there because you had uh. You know guests and different things like that, but it was over 200 like-minded people getting together to learn and help to educate each other.

Now i did a kind of a inspirational talk, kind of a thing you know the state of the industry was the title of my talk and i'm working on getting the footage. So once i get the footage, i will release that on my channel. It's it's a lengthy talk, but i i rewatched it and - and i didn't get too many douche chills. You know when i watch myself and i try to reach re-watch my stuff, i kind of get goosebumps and i get cringe.

I call it the douche chills um. I didn't get it too bad. There was a few of them like uh. You know i could have done that a little bit better yeah, you know, but for the most part it was interesting because when i got up there and started talking, i got in a zone and i genuinely had to re-watch it because i had no idea what I said i had general ideas that i covered this and i might have said this, but um you know uh rachel kaiser.

I believe it was rachel kaiser. Forgive me if i'm butchering your name, that's eric kaiser's wife. I believe her name is rachel kaiser. I hope i got that right, but um anyway.

She had walked up to me because i said some things about females and how females can help our industry and and how. I i'm kind of a little ashamed to say that you know i'm afraid for my daughters to get into the industry, because it's it's a predominantly male dominated industries, so it's a little difficult to bring females in and have them properly treated. So that's one of the things that i fear for the industry, but i know bringing more females into the industry, is a solution to our employee shortage so anyways. I had discussed that and she had walked up and said something to me and it was like she was saying you know she appreciated what i said and i genuinely didn't remember it.

It was kind of difficult and i hope i didn't butcher her name, i'm i'm pretty sure it was rachel kaiser. I hope it was um, but anyways uh. It was. It was really interesting and it was an amazing event.

So the cool thing about the hvac training symposium was this was the first time that i met bill, curious, hvac, guy, adam, a team adam and rick from hvac our survival and it's funny because we all rented an airbnb together and stayed with each other for three Nights um, but it was really cool. You know. We've been friends for a very long time. Pretty much.

All of us have been friends for about two years on on the internet. My wife calls them my fake internet friends right, but we've all in different aspects communicated with each other for the last two or so years, and it was really cool to be able to meet them. And then, on top of that, to be invited to be a speaker at brian orr's event and then get to meet all the other awesome content, creators and social media people educators. My gosh, i mean just to name a few eric kaiser um don gillis from emerson copeland.
You had trevor matthews from refrigeration mentor. You had ty branaman from his own social media platforms. Tai is an amazing educator and by the way, sitting down and talking with that, guy man, what an interesting guy, uh um trevor matthews getting to sit down trevor and i have been talking back and forth we're working on a few things. And it was awesome to be able to sit down and meet him in person getting to see brian orr nathan or his entire crew.

It was absolutely amazing, then there was a bunch of other amazing speakers and then there was vendors there. But the interesting thing about the hvac training symposium was everybody genuinely wanted to be there. It was so interesting, it was like a grassroots vibe, um and - and you know, there's there was this great great educational sessions. They had amazing talks right and he broadcast it live.

You could buy online tickets. I think you might still be able to buy online tickets to see all the footage and stuff, but it was amazing to be there. But honestly, the educational sessions were amazing and i haven't even watched them all yet, but the best part about the hvac training symposium was the breakaway conversations. My gosh, you started talking to one person.

Two other people walked up and before you know it, you had five people there and you're talking for 45 minutes, all vibing off of each other, feeding off of each other coming up with ideas, and this was happening in a bunch of different social groups and some Of the groups would get to bigger than five people. Some of them would stay with two people, but the breakaway conversations were absolutely my favorite part about the hvc training symposium. The educational sessions were also amazing, but the cool thing about the educational sessions is that if you bought a ticket you get access for, like i don't know 30 days or something like that after the event to watch all the educational sessions again, but the in-person conversations You know you don't get to do those again for another year until they have the event again. So the in-person conversations were my primary and the educational second sessions were my.

I was there to watch those, but then i can also watch those i'm already starting to watch them on video. You know, because i have access to that and if you guys, i i think you might still be able to buy the online tickets. Maybe you guys should definitely go to hvacschool.com or hvacrschool.com um. I do want to clarify something that a lot of people will confuse myself and brian.
We are two different people, we don't look anything alike, but people will confuse us and say hey chris great podcast and it's like i don't technically have a podcast, but i actually am working on something right now, but um sometimes they'll confuse the two of us and It's not a bad thing, because we both provide great content and stuff, but we do got to give credit where credit's due and brian orr is an amazing person. And i do have to say thank you so very much brian for inviting me to be a part of your event. Um and uh. Trusting me to be able to get up on stage and talk in front of people and not take my shirt off.

You know that kind of stuff and that that's kind of a funny joke at brian's brother, but you had to be there kind of a thing right so um so anyways it was amazing. So let me see what we got going on in the chat uh. I see jason johnson saying getting to see nathan without a shirt. That's right! It's amazing! Okay! I'm going through the chat right now, seeing what i'm missing, um hello to everybody.

That's in here right now, uh! Let me see um yeah! I hope i got that in um going through here right now. Don't forget rick sims. There were so many great people there. It's amazing guys, um also getting to see.

I already read that one uh, let's see when am i going to stop by new jersey, to give us some hvac classes. You know that is something that i'd be very interested in doing it's not very practical for me to do that right now, but uh. I would like to get into the training side of things, somehow it's difficult with my business, but i would love to be able to do in-person training with people. I see myself as kind of a ride-along person.

It would be really cool to go to other companies and or have companies come to me, send text to me and potentially work with me for a week or something like that, just to get some hands-on big picture experience kind of a thing. It's it's ideas that have crossed my mind for many many years now. I think the most practical way to do it. The difficult thing about doing that kind of stuff is like the insurance and the liability, but the most practical way would probably be to figure out a way that the technicians can come to me.

Spend a week with me. Travel with me on normal routine service calls six to seven hours a day. Doing you know, service calls and just kind of give them the whole big picture idea and how i look at things. Um it'd be very it's an interesting idea that i've thought about many times so um.

Let me go through the chat um. Let me see what we got going on in here. All right, so uh looks like um. It was really cool anthony to get to talk to.

I talked to so many different awesome people and it was really really cool, so um a couple things. So one thing i did see at the hvc school training symposium. There was a couple different um tool manufacturers. There and product manufacturers - everybody was displaying diversitech.
Was there um appion? Oh no appion was there no appion. Wasn't there diversitech field piece measure, quick refrigeration, technologies, inficon testo, um, to name a few copeland emerson, uh and i'm sure i'm missing a few of them. True tech tools was there um retro tech was there uh? There was a bunch of different great people, our energy conservatory was there, i think, not retro tech, but energy conservatory. Maybe i don't know anyways, but there's a lot of great people but um couple different products.

Takeaways, just for my, i didn't get to spend a lot of time looking at the the manufacturers or distributors that were there, but um two things number one, i'm very interested to find out that inficon who makes the inficon stratus or the detect stratus whatever they call It, which is that fancy really expensive leak detector - i didn't know this, but they actually make a replacement sensor for flammable refrigerants or hydrocarbons. So you can still use the stratus and you just pop this sensor in there and then now it becomes a flammable refrigerant leak. Detector, which i thought was really interesting - i'm really stoked about that. So i will be ordering one of those, so that's really cool and then there was another guy that i had met um his name was chris eeds.

I hope i pronounced that right and he came up and he was a you know, a service business owner and he came up with an idea and kind of went to market with it. It's really interesting uh. What you guys want to do is look up, ac, easy t, dot com, so a c e, a s y t e e dot com, a c e z t and what he did was - and i don't have video of it right now, but he took pvc T's but he made them with a cap on the end and he has an interesting system where you can clean the line. So this is more for the residential side, but i thought this was a very unique product that he had, and so it's a it's a three-quarter inch pvct and actually what you're buying is the teas.

You buy a case of teas and then it comes with the cleaning tools that will attach to your hose nozzle, but the tools, if you look at the videos on there, acezt.com and i've got no affiliation with them. I just thought his product was really cool, but the tools that he has will insert into the tee and blow the lines out. So you don't need multiple t people to clear a system. So you can clean and or vacuum just a drain.

Pan out, you can flush the lines out in one direction or the other direction. So it's a really interesting product so definitely check out acezt.com again i got no affiliation with the guy um. He was just a really cool guy and i thought he had a really great product, so um lots of emails that i want to cover. Let me look through the chat, real, quick uh.
Let's see, can you run a freezer compressor without a dtc valve uh? I'm gon na cover that right now, because i actually have that question on my stream right now. So i mean on my list of things to talk about something different. So what i want to talk about is liquid injection, so um. I actually have a question that mike had asked me so i'll go ahead and kind of lump the two questions together hunter, so uh copeland, scroll compressors.

What they have done is they have come up with a way to cool off low temperature compressors, because when you have low temperature, compressors you're going to have higher compression ratios right, you're going to have a lower saturation temperature and typically a higher discharge temperature right or Um condensing temperature, and when you have high compression ratios, you tend to have compressor cooling issues, especially on low temperature uh, especially on some of the newer blended refrigerants, like r448a, which is one of the newer refrigerants we're using on low temp systems. But you see it on 404 a2, so copeland has found that most of their compressors on the lower temp side. You should add some sort of compressor cooling. They call it liquid injection or a dtc valve discharge temperature controlled valve okay, dtc uh.

You can call it a temperature, responsive expansion valve copeland actually makes them. I think, they're why? Why 107, i don't remember what they are, but they're, why something or other valves, but look up: temperature, responsive expansion valve discharge temperature control valve dtc valve liquid injection different ways. So copeland, compressors uh, you know they actually have a rotolock fitting on the side of their compressor, where you can mount a dtc valve or a liquid injection and uh mike's question actually is on the uh heat craft, condensing unit, specifically heat craft. They manufacture their condensed units to where they're, shorter, okay and oftentimes there's, sometimes not enough clearance to mount a dtc valve discharge temperature controlled valve right, because the dtc valve uses a power.

Sensing element, a temperature element that goes in the head of the compressor. There's a little little spot for it. You push it down in there and sometimes on the heat craft, condensing units, there's not enough room between the top of the unit and the top of the compressor. So they will use a different valve.

They use a fixed, orifice metering device, um controlled by a solenoid valve and, if you've ever installed or worked on a heat craft condensing unit. If you look at the low temperature, compressors you'll notice that the way that they install this fixed, orifice metering device, the liquid injection is really interesting because they basically braised a piece of quarter, inch. Copper that has a tight 90 on it and they filled it with a crap ton of 56 silver solder. So it's like when you go to change that compressor.
Most people don't understand. Whenever you change one of those compressors. I highly encourage you to change out the liquid injection valve completely and what i have actually found is on most of the heat craft units, even though they came with the fixed orifice liquid injection. You can actually still fit the dtc valve in there and then you don't have to try to unsweat that to get it swept back in, because trust me trying to fill with all that solder is like a nightmare okay.

So i highly suggest, if you're, going to replace a copeland compressor, that's a low temperature that does have liquid injection that you change the liquid injection. If it has the fixed orifice metering device. Personally, i'm going to try to go to a dtc valve and and put it into the top of the compressor you can uh. If you go to the copeland mobile app and you, google, the kopla mobile, i mean go to the copa, mobile app and look up the compressor and then go to the service parts or whatever it'll actually tell you the part numbers for the actual dtc valve.

So that's something you want to do you guys. We have the ability and we have technology and we need to utilize it a little bit better. So oftentimes supply houses are not informed enough to know what it is that you're asking for. They don't even know what a dtc valve is they're like uh, i don't know so.

We as technicians are gon na, have to do a better job of finding the parts that we need and go into the supply house with a parts list. Instead of calling them and saying i need you know what do i need for this because oftentimes, if you do get an answer, it's going to be a long time coming before they actually answer it so um, but can you run a a low temperature compressor without Um, a dtc valve you can, but in the high compression ratio situations you're probably going to run into some overheat situations with out the dtc valve. So, in an turn basis, you might be able to get away with it for a night or two until you can get a replacement valve, but uh. I highly suggest that you, you put a dtc valve or liquid injection back into the compressor, because that's what it needs to properly cool the compressor, so we'll definitely be talking about that a little bit more in the future um.

So, looking through the chat, uh anthony moreno says it meant a ton to get to talk to me. That's really cool, but i'm honored that you wanted to talk to me. That's really cool and something i i did. An instagram live before this just kind of announced that i was going to go live on youtube, but i want to say it on here too.

If you guys see me out in public um, you know stop me and say: what's up you know, sometimes when i'm working i get in a zone and it's hard for me to remember, i got to slow down and pay attention to people. I never planned on being this person on social media and i'm still focused on my work and so when i'm in supply houses or out in public, i'm usually in a zone. When i go places, i usually don't and it's it's part of my own curse. I typically don't go places and get to enjoy myself and enjoy my surroundings, because i'm such a hyper-focused person that, let's just say, i'm going to disney world okay, if i'm at disney world or disneyland or whatever.
If i was there, i'm focusing on the next place that i'm gon na go in the park. I typically don't enjoy myself on the journey to the next place and i need to do better at that. But that also is a problem when i'm out in public, when i'm at a supply house or something like that and i'm going to get a part, i'm focused on getting a part. People will email me after and say hey.

I saw you in the supply house, but you looked really busy. I didn't want to stop you stop me say: what's up, i don't mind, and sometimes it takes me a minute i have to like, do a double take and be like. Oh yeah, yeah how's. It going bud because i just get so hyper focused on what i'm doing so.

If you guys do see me, stop me try to talk to me. I tend to wear on my face, but i really don't mean it. It's just part of my own mental issues and stuff. So let me see what else we got going on here.

Uh dwayne doxley says brian orr is intimidating, uh brian's, actually a really nice dude and i think he's kind of similar in me in that. Sometimes people may think he's not approachable, but he genuinely is a very nice guy and um. He is approachable you just you know, need to approach him at the right time, but yeah he's a really cool dude. So uh is there a video of the airbnb ac repair.

Cyborg sheep is asking so funny enough when we were at the training, symposium myself and all the guys we rented an airbnb together and the air conditioner broke in the airbnb, and here we are in central florida. None of us have tools, you know we're like uh. What do we do? You know um and it's funny because rick from hvac our survival, he macgyvered that he he grabs a fork from the the drawer in the kitchen and like bends, a fork and manipulates it to be able to get a 5 16 screw off and like open the System up found out that it was going off on low pressure. I think it was a linux heat pump and then uh long story short.

The system had like a floating restriction. I believe rick said so. What he did was we didn't really have tools. I think he borrowed some gauges and some refrigerant because we thought maybe it was low, but when he put the gauges on, he realized it wasn't low and when he reversed the system, whatever the restriction was, you know, got out of the way and got us through The rest of the weekend, so we were able to put it back into cooling and continue to work so um, but i i think there is a video i didn't take it.

I know adam took it, i don't know if that's something he'll release or not so um can you i already answered that question. Let me get to the chat and see what i'm missing. Um uh. Let's see, prime time saying that i was a little incorrect.
A dtc valve is used in a critical situation. System, isn't balanced, you installed many low, temp scrolls and never installed. Dtc condenser has to be bigger, um, okay, so yeah. I kind of see what you're saying so you're saying that you can survive without the dtc valve, but i'm assuming that people you know on existing equipment.

If you're, if you're sizing your equipment without a dtc valve, then maybe you can size accordingly, but it's also very difficult to oversize equipment. These days, you can't really oversize condensers in certain situations, especially if you're buying pre-packaged condensing units, because you're going to affect your your system td, and that can become an issue too, and it actually we're running into some problems. So i agree with you prime time that there is instances for sure that you don't need a dtc valve, but i'm kind of going off on a tangent in another direction, with a lot of these new awef standards, annual walk energy efficiency standards. That department of energy is setting across the united states.

What we're going to tend to find is that manufacturers, refrigeration manufacturers now have to design equipment with energy efficiency in mind, and so the government department of energy has instituted rules that they have to meet certain energy efficiency requirements. They don't necessarily tell them how they have to meet those requirements. They just have to meet that energy efficiency number. So with that comes equipment being properly matched that's very important, and then, on top of that they're doing things they all do different stuff.

Some of them use micro channel condensers, some of them they oversize condensers. They do different things, but you know with that being said, on single component systems, they're, actually floating the head pressure way low down to sometimes 100 psi, 125 psi 150 psi. Traditionally, we would have um head pressure, control valves and or fan cycling, maintaining 90 degree, condensing temperatures 180 psi somewhere in there somewhere. You know somewhere in that range, but they're not doing that.

They're floating that down to lower the compression ratio or to reduce the energy consumption essentially, and when they do that, that's creating some evaporator efficiency problems because, for instance, out here in southern california, we typically design for the higher ambient temperatures 115, sometimes 120 degrees. Depending on. Where you're living, but then in the winter time we can have extremely mild conditions about 50 degrees right and uh. Your five or your your two horsepower compressor at 120 degrees now becomes a five horsepower compressor in the winter time and on single component systems that don't have any kind of capacity control.
You will screw your evaporator td up massively and we're running into some issues like that, so sizing our equipment properly is becoming even more critical these days because of those new awef requirements, because you can't be oversizing condensed units in the past. We could get away with it, but with these new systems it it does become a problem so and - and you know, unless you create a false heat load or something like that which you're throwing your efficiency out the window, when you do that, so you can create A false heat load by putting a bigger head pressure control valve on there by running the fan cycle, temperatures or pressures way higher. So that way you maintain higher condensing temps, but then you lose your energy efficiency. So it's an interesting gamble that we're having to run into um you.

I do agree with you, prime time that you can get away without dtc valves. But you need to be careful um and make sure that you understand what you're working on, because if people are just oversizing equipment like we have done for so long. We're starting to run into more and more problems with the new aof requirements and also to be fair. I believe the awef requirements only apply to walk-in coolers and freezers that are 3, 000 square foot or less.

I believe the bigger stuff has different requirements that they have to meet so all right. So let me go ahead and get to the chat uh. What does my streaming setup? Look like trail master scheme, not really something i can show on here. If you go to my instagram, the instagram live, i just did i posted the video.

I showed my streaming setup uh. It shows my my setup and all that stuff, so you can probably see it there. I don't really have a video of it per se. On my channel uh, let's see what else uh do the co2 come to? Oh, do i think the co2 will come to light commercial yeah.

It's inevitable that they're gon na bring anything they can to light commercial to try to reduce global warming potential and stuff like that, ironically um. I you know, i don't really get frustrated with all this stuff, but i do see hypocrisy in a lot of stuff and it's interesting because the industry's going to co2 and hydrocarbon refrigerants when 10 years ago they were bitching about drilling for oil, which, if you need Hydrocarbon refrigerants, uh propane, you have to refine the oil right and it's a by-product, so you're still drilling for oil to get hydrocarbon, refrigerants and then the co2. They were bitching and they were pushing out dairy farms and stuff like that out of california. Because of the co2 emissions from the cows, but yet we're still using hydrocarbon, refrigerants now and co2 refrigerants.

So there is all kinds of crazy problems, but to be fair, you know i'm not afraid of new refrigerants and new stuff, because it just means that there's more potential for us hvacr service technicians to learn more and make more, because if they're changing stuff up it. Just means there's an opportunity for us to learn new stuff, so i'm not afraid of it. It's just you know new things that we have to research and understand. It's so important that us hvac service technicians know that we can't just lean on supply houses to give us education anymore.
We can't just assume that supply houses know how to size equipment anymore. Half of my supply houses don't even know about the new awf requirements and the new condensed units and stuff that they're selling. Interestingly enough, if you're doing any of the new awef condensed units which is pretty much across the united states, if you go, buy an off-the-shelf, pre-built condensing unit, it's going to be awef compliant everywhere, not just california, all across the states and um. If you're going out.

Let's just say you have a compressor, that's bad and you have an existing walk-in cooler, a walk-in freezer, okay, we'll use a walk-in freezer, for example, and you just you have a compressor, that's bad and you you opt to buy a condensing unit instead, because you get A whole package you know and boom done, throw a condensing unit on there use the existing evaporator. You might not be able to get away with that anymore because, with the new awf standards, when they float that head pressure so low, the expansion valve sizing is very critical and most of the times you have to go with a balance port expansion valve. So it's not just as easy as swapping a condensing unit out anymore, because you're going to run to potential problems, it might work in the summertime. But then, in the winter time you might run into capacity issues, so lots of things that we need to think about.

And understand, and the cool thing is, is that as technicians we have things new things that we have to learn, and that makes us more valuable and that makes us worth more. Therefore, we can get paid more right, so it's great um. So let's go through here. I'm missing questions if i miss your stuff feel free to post it again or send me an email, hvacr videos gmail.com.

I do want to say that i already announced it in the beginning i'll say it again and i'm going to make a youtube. Video and social media posts - i am hiring right now, i'm looking for a service technician. Now, i'm looking for an experienced service, technician that understands the restaurant refrigeration that has ice machine experience. Exhaust fan experience, air conditioning experience, reaching cooler experience physically fit can handle working in kitchens, high stress environments, that kind of stuff.

I know i'm asking for a lot, so i'm looking for that experience diamond and the rough unicorn technician if you're in my local area in southern california. I'd definitely love to talk to you, i'm specifically located in the inland empire of southern california. I am also willing to consider training another apprentice now i currently have an apprentice right now. That's doing really good, but he's about to graduate on to the next level of being an entry-level service technician.
So i'm going to start letting him go out on service calls a little bit more in here and there to kind of get his feet wet right. So i am going to have time to be able to start training another apprentice to potentially make him grow as a technician. So in a perfect world i find that unicorn experience service technician and he comes to work for me right now and he hits the ground running and we're good to go uh. You know and worst case scenario, i'm willing to train an apprentice again.

I need people to be local to me here in southern california, the inland empire specifically and capable of working on the kind of equipment that i do if you're interested, if you're in the area and you're interested in working with me, feel free to send me an Email to hvacrvideos gmail.com and i will definitely um post it on all my social media platforms in the coming days and stuff too so uh, let's see what else we got going on here, um yep, uh, mike b, says means we got ta get we got ta Buy new toys to use on the job. That's right! All these new changes just mean that we get to do new stuff um. Let me see what else uh we're going in here, looking through the chat, seeing what i'm missing nothing too much! Nothing too much. Okay, cool i'm gon na get to my list of things to talk about so um.

Let's see uh. I already answered that one right there uh. I already answered that one, i'm just crossing off my list of questions. I got stuff written on a list, so i had an email asking for advice on gaining customers right.

This is a gentleman, that's a new business owner and he was just curious about how he can start to gain new customers, but he wants to gain new customers that are not penny pinchers that are always going to about the price and try to haggle on different Things like that, okay, it's going to take time and you're going to have to struggle through the haggling that is just part of the business, especially as you're coming up as a new business owner and you're working with mom and pops, and things like that. Unfortunately, that these days, a lot of people are going to haggle um. So it's stuff you got to work with. You need to stand firm with your pricing, but make sure your pricing is competitive and it works for you now.

As far as how do you set your pricing and how do you get new customers? That is a really difficult and complicated question. I do not have an easy answer for you with that: okay uh, the business that i started was started by my dad many many years ago, 30 years ago. Something like that. I came to work officially for the business 20 years ago and we have maintained a lot of the same customers now.
We've gained new customers, but we still work for one of my dad's, very first customers and because of that customer and because of his honesty integrity. We grew by word of mouth, we typically don't advertise, we do have our name on the side of our vans, but it really just gets us stupid phone calls from pregnant moms. Who said that we just cut them off more than anything, we really don't get service. Call work kind of stuff from the name on the side of our van.

We just get people pissed off, because someone cut them off. Typically, it's people that don't know how to drive either by the way most of them. They'll come in on me and i'm a pretty calm driver but uh people will call and be like one of your guys just cut me off and it's like well actually you're talking to the guy that cut you off and i didn't cut you off. It's you.

Don't know how to accelerate when you get on the freeway and i'm in you know a fifteen thousand pound vehicle that doesn't stop on a dime. So when i'm going, i'm going you're going to get out of my way but anyways. It's a whole thing and you know whatever but um, so we've been lucky enough that a lot of our stuff has been word of mouth over the years. So it's not the perfect business model now um.

I do want to talk to you about. You know the haggling on prices a little bit more too. You need to understand that your price is your price. You need to stand firm to your price, whatever you make it now.

I mentioned that you want to be sure that your price is good for you, but also competitive uh. You need to stand by your values and and what you are and what your worth is. That's a really important thing, but that's also a dangerous thing, because, depending on the customer, they may not be willing to work with you. If you don't haggle, so every business is going to be different and you may have to tailor it accordingly.

Maybe you live in an area, predominantly that's going to have people that are going to haggle. So maybe you need to elevate your prices, so you have room to haggle down. I mean there's different ways to do things right, but you still need to stay competitive and know your worth, so i'm not the best business advice person to talk to, but i hope that i answered some of your questions there. Okay and some of these people, i'm not going to mention their names because some of the questions might be confidential or something so i'm just going to use anonymous names or different things, but um this one, i don't think needs to be anonymous.

Uh jeremy had asked me a question and potentially a suggestion for a stand-alone freezer that is extremely reliable. The type of work that jeremy does they it's very difficult to get people out because of pos and different things like that to work on the particular equipment and he wanted to know a general idea for a freezer that is very reputable now uh. The question was a little bit vague jeremy, so i'm going to answer it. You know kind of broad, i'm assuming that you're talking about a walk-in freezer, because the way that you were explaining your question - okay and so he's basically saying that he wants equipment.
That's not going to break down because it's so difficult to get people out to work on that said, equipment in that situation, jeremy. I would strongly suggest that you build redundancy into your refrigeration equipment in the the situations that you're talking about money is not so much of an issue. I understand that it is right because you're working on bid, work and stuff like that, but in the situations that you're running into i would build redundancy into your freezers. So have two separate systems that potentially run your freezers and have a lead lag situation.

Where uh you know, one can run and then another one can run at a separate time. You can turn one off turn the other one. On now, it's not just as simple as installing two condensed units and two evaporators you're gon na have to engineer your system properly with um. You know different things so that way, when one system shut off for a week while the other one's running for a week or something like that, you have controls and solenoid valves and different things.

So that way, you don't get liquid migration and different things like that. So you want the system to be properly engineered, but i would highly suggest redundancy in your equipment and then have some sort of a lead lag system with time clocks or something that's going to rotate the primary condensed unit. So that way, one condensed unit runs and you'll get equal run time on both of your equipments. But then, at the same time, if you ever have a breakdown, you have another piece of equipment that is perfectly capable of running that entire system by itself and then obviously doing proper preventative maintenance.

So then you can have scheduled down times and stuff like that. So i highly suggest redundancy built into your equipment, but okay and i wouldn't get too too technical uh because again not going into too many details with the type of issues that you're going to run into getting vendors to come in and work on your equipment. You don't want it to be so complex that people can't work on it, so be careful over engineering things to an extent, because then you're going to have an even harder time getting technicians that are competent enough to come in and work on your equipment so uh. Let's see what else uh jcc3279 says that hope, myself and my family are doing well.

Yes, they are doing great and luke is doing good too so other than being an expensive ass. Dog luke is doing great, so my doggie luke, i had he's about eight months old, now he's a silver labrador retriever. We had sent him away to training for a couple weeks, just obedience, training and stuff and uh. Then, when he came home he ended up getting sick.
While i was in florida, my wife had to take him to the emergency 24-hour vet in the middle of the night. Oh, my gosh, this dog is costing me an arm and a leg like good grief. This is what pets do for you right, so emergency vet fee which is stupid, expensive and then everything ended up being. Okay, just some issues, he had like a cut and it was infected and all this stuff.

So we took care of all that and then he had to go back for a follow-up today at the vet, because he's got some like weird bumps on his head and it's just like. Oh my gosh. It just keeps going more and more and more money, but hey he's a family member and we take care of him right. So it is what it is, but good gosh dogs are expensive.

I forgot about that um. So glenn had asked me a question. It was an interesting question, so he said. Have i ever had staff that disrespected me and uh you know was - was hard to work with and it's kind of a loaded question.

But, yes, i have had those situations and coming up in the trade you know. I grew up in this business, so i've made a lot of mistakes and you know i've made friends with service technicians. I've been you know when i started at this business working full-time for my dad. We hired another service technician about the same time, so him and i were kind of on equal levels.

But then i excelled past that service technician and we had some issues with that because there was some jealousy and stuff like that, but he's a good guy and we got over it and everything. But yeah we've run into those issues and, and you know that person was my friend too uh becoming friends with your service. Techs is a very difficult thing and it's a very complicated thing to handle. So if you can avoid becoming friends with your service techs, i know it sucks because i run a family business and you want it to be a family atmosphere, but man it's difficult to be friends with the techs too.

I mean i'm talking good friends like one of the guys was in my wedding or at my wedding, and then i've had other service techs that i became really really good friends with that started to disrespect me or thought that they could. You know talk back when you know when we were doing work related stuff and it gets tricky so running. A business is definitely tricky, especially if it's a family business and when i say family business, you know we don't do the greatest at having structure and organization and we're just uh. You know we try to make sure that everybody's taken care of and stuff and - and you know you tend to get close to people when you run a family business like that, so it is a little difficult and yes, i have run into those issues glenn.

I do not have great solutions other than saying be careful about becoming really good friends with your service. Techs there's, there's a there's, a fine line between a business relationship and becoming best friends, because that has the potential to become toxic. If you become best friends for sure, especially if you're in a leader role, um, that's funny, laska uh, let's see i'm seeing what i'm missing in the go to any heavier commercial side. Lead lag is what you will see.
Definitely yeah so um chillers work that way right yeah. Some chillers will work that way. So uh, there's lots of different stuff. Even train package units will have some of them have a lead lag set up where one compressor becomes a primary and they automatically switch back and forth, and it's in the reliatel logic.

They'll do different things. Um i've seen that before too so uh all right. A couple more questions: um, that's funny david rivas, said get a mexican dog resilient as we'll eat. Anything super loyal, that's funny, man uh! No, we had to get a boutique, a silver labrador, retriever right.

I just wanted a lab and my wife's like no we're going to get a silver lab and i love him to death, but good greece good grief. So it's already answered that question. Um cool already covered that one uh. Oh, this is an interesting one.

So zack is in trade school and he wants help. So zach kind of told me a story and unfortunately, this kind of is the trend. But zach is in trade, school and uh he's being taught air conditioning in a trade school and he wants to learn the refrigeration side, so he's kind of taking it upon himself. They don't really have a refrigeration program at his trade school.

It's more air conditioning based, but he's taken it upon himself to take some refrigeration equipment that he has in the labs and different things like that and he's trying to get. The refrigerators operating and zach was asking me about charging the systems because he was a little confused on how to charge refrigeration systems with expansion valves, okay. So, first and foremost, if you have a refrigeration system with an expansion valve plain and simple, an expansion valve works on the principle of a solid column of liquid, going to the expansion valve at all times. Okay, whenever the system's running, you need a solid column of liquid.

Now, there's some weird things, though: some manufacturers tend to do weird, stuff, okay, but typically on a refrigeration system that has a receiver and an expansion valve. You need a solid column of liquid at all times now, even if the system doesn't have a receiver, it's supposed to have a solid column of liquid. Sometimes there is refrigeration systems like charleston used to do it where they would install just a refrigeration system, no receiver, but it would still have an expansion valve in situations like that. What i have found is, most of the time the manufacturers would oversize the condensers.

So that way you could actually have enough sub cooling. They would overshoot the sub coin about 10 degrees, so that way at any given situation, there's a proper charge in the system. Now, interestingly enough, even on air conditioning equipment, did you know that you know when we have sub cooling targets? 10 degrees 12 degrees, whatever the manufacturers set, those targets typically, are there just to be safe? Okay, so that way, in any situation that expansion valve always has a solid column of liquid, because if we know that, if you have one degree of subway or any sub cooling, you have a solid column of liquid right. But oftentimes manufacturers will have you overdue.
The sub coin 10 12 degrees whatever. It is because they want to make sure that, in all conditions right because hot conditions, cold conditions, different types that expansion valve is going to require higher loads in the box higher loads. In the the occupied space, that expansion valve opening and closing is gon na need more refrigerant or less refrigerant, going to it so oftentimes when they do have those sub cooling targets they're there for overkill kind of, because you know just to make sure that at any Standard operating conditions, outdoor conditions, you constantly have some sort of sub cooling, but anyways back to the question. So if you do have an expansion valve in your system, you need to make sure you have a solid column of liquid going to it.

Okay, now um when it comes to sizing your equipment, so zach was saying that he's taking different pieces of equipment, condensing units evaporators and he's trying to hodgepodge equipment together. You need to be careful because uh reaching coolers and different things like that are typically designed with high evaporator tds, so that we can have quick pull down times versus in a walk-in cooler and a walk-in freezer. We typically, on average, we'll design our equipment for a 10 degree, evaporator td, so that's the saturated, suction temperature compared to the ambient temperature inside the box and typically it's about a 10 degree td. Now sometimes you may engineer it to a 15 or whatever because of whatever they're storing in the box, but for the most part it's about 10 degrees, but reaching coolers and reach and freezers will often have a much higher td, which can lead to a lot of Issues, if you have a really high td on a reaching cooler uh, you can tend to have more frosting issues where the evaporator can frost up, because the evaporator is going to get really cold right, but they do higher tds on reaching coolers typically.

So that way, they have quicker pull down times, because customers are opening and closing the doors all the time and for the most part, a walk-in. Cooler is typically designed to only have the door open so many times a day, but we all know that's kind of not really happening, because i show in my videos all the time where i'm having to de-ice walk-in, coolers and freezers, because they leave the damn doors. Open okay, so understand if you have a txv, you need a solid column of liquid going to that expansion valve plain and simple, okay, um. So hopefully that answers a little bit of your question.
Zach feel free to send me an email, hvacr videos gmail.com. If you need more clarification, see what i'm missing here, chris edes. Thank you very much for becoming a channel supporter. That's really awesome, but it's really really cool and again i kind of already talked about it.

But chris is the person that designed the ac, easy t - and i already talked about that earlier in the stream, but it's acezt.com again. I have no affiliation with it, but i just noticed that he makes a really cool product, and so what you want to go is acezt.com you'll, get to see some videos and some pictures. But it's simple as it is: it's a three-quarter inch tee with a cap on the end, that's removable and he has some special fittings designed to either block the tees off to to to blow water through the tee in one direction or the other direction. It's a pretty ingenious design when you see what it is and it's pretty cool the way he sets it up so definitely check it out.

Um. Let me see what else we got going on in the chat right now, kobe lewis. Thank you very much for that. Super chat, all the support you guys, it's really amazing um.

You know. I really really do appreciate the little bit of support. If you guys are interested, feel free to go to my website. Hvac our videos at hvhdrvideos.com.

We've got the hats, the shirts, the sweaters, the beanies, all the different stuff available, and it's just a cool way to support the channel so um. Let's see uh colby's again thanks so much for that super chat, and you said uh um.

2 thoughts on “Hvacr videos q and a livestream 2/28/22”
  1. Avataaar/Circle Created with python_avatars arnie W says:

    FULL TIME RESIDENT IN CASA GRANDE, AZ..HEAT PUMP SYSTEM, SHOULD I GET A STARTER KIT INSTALLED? SYSTEM IS 3 YEARS OLD.

  2. Avataaar/Circle Created with python_avatars Jesse Gutierrez says:

    Hi bud! Whats up with the randell blast freezer has a 220v and 110v plug??

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