HVAC Commercial rooftop package unit Beginners Guide

[@thecaliforniaconquestor9485]

I am a residential technician this video motivated me to want to do commercial.

[@JRAM7]

I'm about to finish HVAC school. just had an interview for a commercial company for a service tech position. The school had some package units but swayed more towards Residential. This video definitely helped get more familiar with a package unit. thanks.

[@ricardomorais4356]

*Great with keeping my 1st floor **Fastly.Cool** . Had a little struggle getting it to sit properly in my small window but once I got it situated it works perfectly.*

[@borshardsd]

Taddy im a fan, im 8 years in and still eyes and ears open for knowledge. You are awesome, im reading many comments of helped techs here. Effin a keep on!

[@TaddyDigest]

Thank you brother I am here to help I'm glad you're here

[@michaelhuff3797]

I’m transitioning from a residential hvac installer to a PM tech for a commercial company. Definitely needed to see the basics lol. Preciate it 👍🏽

[@TaddyDigest]

yes sir your welcome congrats on the career changes let me know how you like it compared with resi after you start 😉 Wish you many years of success

[@TaddyDigest]

thanks for watching please share and like so I can grow

[@YuShudNoe]

Good stuff man! Commerical is definitely the way in this field! Residential is more stressful just with attics and crawl spaces alone 🥵😭

[@MegaHomo100]

Hey Me too!

[@duckdown9314]

Same here

[@BrennenDills]

But thank you for putting this out i guess. I am a 20 some yr commercial and residential floor man who just switched to cemmercial h-vac. My boss sucks at at teaching and you blow through this info like youre teaching the Village of the Damned children!

[@mahabubulalamshusom6327]

you are one of the best on the HVAC Industry fieldwork. Big fan of your blog on HVAC.

[@TaddyDigest]

excellent thank you 😊

[@PPyle]

Installed this exact unit today. Ran across a few issues, which after watching your video, I plan on going out tomorrow and making a couple corrections.

[@TaddyDigest]

Glad I could help

[@anond2015]

I'm in apartment maintenance right now, and I have a final interview with a commercial HVAC company Wednesday. It's good to know that, while a little more complicated than residential splits, it's basically the same components on these RTUs.

[@lachcik5084]

havent worked on a rooftop in over a year and came across this exact same york rooftop today. came right to this video. thanks!

[@TaddyDigest]

You're welcome thank you so much for watching

[@danatheman7690]

I’m going from residential refrigeration to commercial HVAC. Been in the field for 13 years and this is by far the most informative video. Well done.

[@TaddyDigest]

Danny you are awesome Thank you so much for saying this I really appreciate it means a lot to me Let me know what video content I can do to help other people I am interested stay happy my friend

[@726scooty]

@@TaddyDigest hey me too and usually what gets me is the multiple gauge ports inside the unit.

[@carlosheras2761]

hey I'm sure you probably already have the experience since this comment but I'm pretty sure those multiple ports are for adding in an aftermarket pressure switch since the factory ones are the peanut style that are welded on.

[@BlackMan-ld9fl]

You've got some great videos man. I just started in the field as a novice technician and they don't show us much about commercial in school. It's nice to be able to watch these videos and do some extra studying on what I'm seeing now on a regular basis. Keep doing what you're doing man this is good for the trade.

[@TaddyDigest]

I appreciate that!

[@ImCerealSuperDuperCereal]

I'm in HVAC school right now here in Pennsylvania, and I love it! My third term is going to be all about commercial refrigeration, so love what's coming next.

[@TaddyDigest]

Awesome commercial refrigeration is a great learning experience and tons of work needed to be done In the field

[@enkidufive3349]

I've never seen one so clean and pristine. As an aside, you're quite well spoken.

[@TaddyDigest]

thank you so glad you watched and commented I like you thank you please like share and sub I need help growing my channel

[@spookyboi8446]

Im a young man but ive only done blue collar work. Been doing residential apartment maintenance for about 3 years and I love it. HVAC, Plumbing and Electrical all in the same day makes it fun and keeps the clock moving. Cheers!

[@TaddyDigest]

I agree it does make it fun You are my people Love it Thank you for watching

[@ledgroove26]

As somebody who is pretty fresh into sales with York, this was a great visual run down of the units I sell daily to understand what my customers deal with on these products. great video!

[@TaddyDigest]

Justin Thank you man that means the world to me Glad you liked the video I was going for a quick overview on the unit.

[@bshx01]

I'm currently in residential right now and believe its time to make the move to commercial. this was very informative!

[@TaddyDigest]

Awesome Brian Always strive to achieve higher Thank you for watching

[@pontiacgt60]

I'm about to be done with HVACR trade school and I'm excited but nervous as I have never done any of this kind of stuff great video!.

[@TaddyDigest]

Congratulations To you and I hope you have a great start to your career. I've got about 250 videos on my playlist HVAC tips for technicians If you watch all those videos you'll have a really good idea of what you're supposed to do

[@DallasMade]

Good refresher. Been a year or 2 since I last serviced anything. Very helpful and straight to the point

[@TaddyDigest]

Good deal thank you Dallas

[@sarbbhamra6758]

Hello, all I have to say is thank you 🙏 so much for making these videos. I learned so much from these videos. If it is possible, can you please make a video on AC . How to top it up AC. God bless you!!!!!

[@TaddyDigest]

Great suggestion!

[@Empty7775]

Thanks Tad, I’ll be doing an RTU in a week or two. Never did one, have no clue how it’s going to go. I do know I am installing a unit with the same curb so that helps. It’s a Carrier unit.

[@TaddyDigest]

You will do great my brother If it's the same curb it will be a walk in the park

[@Empty7775]

@@TaddyDigest you were right. I would rather do RTU’s any day over residential split units. It was a breeze dude. Thanks for pep talk. Im now broke in and ready to do the other RTU for the same customer this spring. Easy money

[@spacemanwithraygun3933]

I have replaced the micro channel con coils on those units so many times. If you are not sure that your phasing is correct energize a call for fan first. It worries me that a new units compressor may come on in reverse. In my opinion never use coil cleaner on coils unless you hate the coil and want it to die.

[@dwaynes5983]

I always change phase at the contractor, motor leads, for rotation. More control for each motor rotation. Great information Thank you.

[@TaddyDigest]

Right on

[@Jason-wc3fh]

Bad idea. You then need to go around doing that for every other component on the equipment that runs on 3 phase. It's much better practice to change the MAIN wires and leave the unit wiring factory in relation to how it was phased when they built it.

[@trouble30906]

I’m replacing 2 compressors on a brand new chiller because the last guy started the unit and the phase monitor went into alarm shut it down..He swapped the phase and the phase monitor alarmed cleared water pump started up and was running backwards then he shut it down swapped the main phase again and then swapped monitor to get it out of alarm then started the compressors up and smoked both of them..Point is check the phase before start up and make sure it’s rotating to the right..if the water pump is running in reverse then only swap it not the main..just my 2cents.

[@samoanstrongmanafa5650]

Just started this career from being a Cop to doing this is a little intimidating but I think after a year of training I'll be fine

[@TaddyDigest]

Yeah after some training and some field experience you will be good at this man

[@samoanstrongmanafa5650]

@@TaddyDigest thank you I appreciate you will definitely be watching you ✊🏽💪🏽🤙🏽💯

[@FivexxXxx5]

How’s it going so far? I came from being a Corrections officer, 1 year of school and got in with ACC recently.

[@bryanstewart1817]

I know the person that tested that unit specifically at York. I work with him. We looked up the serial at work. We're all testers lol

[@TaddyDigest]

that's awesome Thank you for testing my friend

[@draildrail9855]

Awesome stuff man, just started my career in HVAC,great content

[@TaddyDigest]

Thank you Daryl if you have any questions let me know I'll try to do a video about it

[@demondude1000]

Thanks for the knowledge. I am getting into the field soon, commercial as my preference, and it'll be a good career

[@TaddyDigest]

You can do it!

[@demondude1000]

@@TaddyDigest Hells yeah I can. Served 10 years in the military, this will be like a walk in the spark!

[@justinwallace390]

Also transitioning to the commercial side. I appreciate the overview!

[@TaddyDigest]

Your welcome Glad you watched 😀

[@ericeredding2721]

In HVAC school right now. I have about 3 months left. Looking to go into the commercial side of HVAC. Really trying to grasp the concept of trouble shooting

[@TaddyDigest]

Check up my video on Transformers and relays basics I will do a couple videos I have some commercial units I'm working on this next week

[@davidmarler7]

I cant stand watching some of these videos on you tube .your was great! strait to the point .very good info .don't get me wrong thanks to anyone that takes time to make a information video .but if I want to see someone's work van. i will pull it up in search . if I want to get to my favorite subject. HVAC. I have to watch something like this .MY ATTENTION SPAN GETS LOST ON THERE RIDE TO THE JOB .LMAO . great video I can subscribe and support a channel like this one .thanks for sharing

[@TaddyDigest]

Wow David thank you so much I try to get straight to the point with all my videos 📹😀 Glad you watched thank you for supporting my channel and helping me to grow

[@daanski82]

oh look squirrel ;-)

[@daultonbowers6897]

Tad you're the freakin bomb man love your videos! Such an inspiration to a lot of us

[@rileyollanketo8086]

Good video, only thing I noticed was isolation valve on gas line. Should be on the other side of the dirt leg, so it can be shut off and dirt leg can be cleaned! 🤙

[@TaddyDigest]

Thanks Riley Good eye 👁😀

[@Jason-wc3fh]

dirt legs need to be cleaned out about 1 out of every million. We have no code requirement for needing the valve before it. Our only requirement is that the dirt leg is accessible for cleaning.

[@MohamedElbastwecy]

a like and a subscription. You deserve it.🤗 I have a question, please. I want to study refrigeration and air conditioning. How long is the study period and the salary for the beginner?

[@TaddyDigest]

I will do a video for you on this

[@MohamedElbastwecy]

@@TaddyDigest thank you sir

[@danielarteaga3913]

Very Knowledgeable Channel and very Explainable.

[@TaddyDigest]

So nice of you

[@layne7742]

Motor sheave only adjusts amp draw not speed, only vfd does speed. If the blower wheel is going the wrong way the door won’t suck shut. And you ideally want a union on the gas line, and a regulator. And a vent or cap for the regulator

[@milanlipovic7349]

Wow thank you for taking the time to do that it’s greatly appreciated

[@TaddyDigest]

thank you 😊 I am here to help

[@danielarteaga3913]

Can you do a video on ways to get better salary pay in the trade and what company's to really get into.

[@davidwilliams729]

Thanks...trying to learn about HVAC. Got a rtu at work and compressors not coming on.

[@TaddyDigest]

Glad to help

[@TonyRodriguez-ok2ix]

2 stage low fire high fire. when short on thermostat wires install on high fire field experience.

[@RaymundoMartinez-d7p]

Have you had any issues with the air proving switch? Fan is running switch is made but I get a alarm “shutdown due to air proving switch “

[@bobbymcnutt8046]

Why is the gas shut off valve after the drip lag? Does it matter?

[@beemerkon]

Ya you left out the weather does a trap still work in freezing temperatures

[@TaddyDigest]

during freezing temps the thermostat would probably be heating so no condensing furnace here normal 80% non condensing

[@DanielHerrera-s8v]

Hey man so far your videos are awesome I’m an Amateur service tech for commercial. Last time i encountered myself with a chattering 3 phase contactor, it might sound dumb to ask but it was a package 2 stage Unit and I couldn’t figure out the chatter, checked voltage and it was good? If you can make video about it and troubleshoot as well!

[@Jbuddaho]

What did you mention about after you cut the power you do a lock out tag out ?

[@TaddyDigest]

Lockout tag out is a way to make sure no one turns a power back on if you're working in a big plant around a bunch of people.

[@amfmechanicbowlingcommunit5048]

Nice video. Hey I have a one of 5 units the is running on cooling for just 5 minutes and then switch to fan only which I know isn’t right, I spoke with tech support and they told me that I needed to pay attention to the fan speed. But what should we the fan speed I should look for? Any information Would be appreciated. Thanks

[@BrennenDills]

Basic overview for who? A tech? Wed love to learn if you'd teach us!

[@deathntaxeset]

Hey can you do a video explaining how to wire in an Emerson Sureswitch RELAY on a 2 pole contactor?

[@bxx7666]

On smaller 3-5 ton units is there a return fan or just a supply fan? How does the air flow out?

[@TaddyDigest]

one fan pulls and pushes at the same time

[@BartSimpson-nr1dy]

Very nice overview of a RTU. Just subscribed to your channel. Overall, great video

[@TaddyDigest]

Thank you 😊

[@mark.r8900]

Where would you take return and supply temperature for heat rise calculation? Thanks

[@TaddyDigest]

Great question I will do a video about that

[@Jason-wc3fh]

You answered the question right in your question when you asked it.

[@AWESOME.764]

Can you show me how you get on the roof and if you use any special Equipment to get on the roof or how to stay on the roof with out falling 😅

[@TonyRodriguez-ok2ix]

2x4 wood frame for disconnect.

[@Ingmaringmar]

Mind that with a vfd switching input legs won't change rotation on the motor.

[@heymikeyhelikesit8673]

@ 3:10; Absolutely correct. A variable frequency drive will correct for three phase miswiring. The only way to check for miswiring is to hook up your refrigerant gauges and briefly run the compressor(s).

[@WillieMakeit]

@@heymikeyhelikesit8673 on the gauges will you see high evap pressure and on the condenser will have very low pressure? Is my thinking correct

[@heymikeyhelikesit8673]

@@WillieMakeit If the wiring is wrong, a scroll compressor will run backwards and sound terrible. The pressures on your gauges will be about equal .

[@abdorakeebnaji1527]

Glad to subscribe to ur channel .I'm a Hvac technician doing residential but I would like to start doing a commercial service and installing top roof units so will you please share us one of ur top roof unit installation from A to z .how to setup the unit and how to wire it and charge it..will be great 👍..thank you

[@TaddyDigest]

Hey thanks for subscribing appreciate you Check out my playlist hvac tips for technician. I have videos on charging

[@Jack-bl2yz]

I am about to start a commercial HVAC job/ apprenticeship any tips and would u suggest I get the fieldpiece probe kit right away ?

[@Utilisateur12345]

Hi bud ! Did you ever have a loop problem on this particular new electronic control board that the board just restart over and over with the 120sec timedelay ?

[@TaddyDigest]

That sounds like it needs to be updated could be firmware update that needs to happen

[@everettsouthwood4737]

Hey, what did you mean reverse wires if compressor or fan spins in reverse? Thanks

[@TaddyDigest]

This video will explain better kzbin.info/www/bejne/fmGmc2ymnL-UY5Isi=pO9mKgmSONtfeS9D

[@chrisdorsey1129]

Do these units or other rooftop units have thermostats located nearby? Im working at a hotel, sensors located in hallways but havw been advised by gm that therms are on the roof.

[@TaddyDigest]

Thermostats could be located inside the unit but these are located inside the building.

[@chrisdorsey1129]

We have thermostats on the first floor but on the 4th floor there are sensors in the hallway but no thermostats on that floor

[@MrChido73]

Great !!!!! Thank you .... keep up the great work 🐻

[@emayen3212]

So I was working on this York RTU last week and it has a Johnson control board . I was getting 24 volts from the transformer going to the board but it was not sending out 24 volt to the thermostat . I was wondering what the problem can be any idea it will help. Thanks !

[@TaddyDigest]

check pressure Pressure switch could be open also check install manual and look at flashing lights on the board It may be locked out on a fault Check fault codes

[@chadsutton3499]

You talk about polarity changing, uh. So if my polarity is wrong will both my blower and compressor be running wrong? Will my blower be running in reverse as well as my compressors not running right? Is that all controlled by the line voltage from the disconnect to main unit?

[@TaddyDigest]

Yes that's right I've got a video on it you should check out my playlist

[@chadsutton3499]

@@TaddyDigest I actually did and found the video where you explained it all. Thank you. I subscribed, glad I found you

[@TaddyDigest]

Awesome Chad You Rock Thanks for watching 👀 😀

[@YuShudNoe]

I felt like I was in an episode of Dora the explorer or Blippi when you counted the bolts on the blower!!! 😂

[@TaddyDigest]

LOL Hilarious my friend I watched it again just see and laughed so hard Great comment please like and sub

[@nnethson]

Real world problem 😢 I have a RTU I’ve got multiple electrical problems and repaired then upon starting up the system and cooling mode and I mean in cooling mode and began to turn on the heat mode I checked system operation molds and AC was turning on heat mode and heat mode was heat mode and the fan operated what do I do and it has one of those computer boards that you can manipulate but I’m unfamiliar with it can you help me please It is the same system that you have here in this video but it only operates in heat mode and I cannot get it to operate in AC mode

[@TaddyDigest]

I can help but not really through the comments You can join level 4 and I can give you my phone number through my email and I can help you.

[@nnethson]

Ok

[@cashonlyj3469]

Nice video just showed up again that's a good thing KZbin promote a little of the good ol'stuff. Cashonlyj was here.

[@JB-yq9bn]

Never trust the directional arrow on the fan I've come across several that were put on backwards at the factory

[@wildoutrudeboy]

You mentioned the discharge line, but where is the line line connection for subcooling?

[@TaddyDigest]

I'll do an update video for you

[@carlosandrade9317]

Im not getting 24v on a lennox commercial ac so would it be a blown fuse

[@TaddyDigest]

maybe or transformer

[@carlosandrade9317]

@@TaddyDigest u know i was just thinking the transformer does the transformer have a switch like a reset

[@ernestogalindo3149]

How do you adjust the speed on the vfd?

[@shaneshepherd277]

Great video!

[@TaddyDigest]

Thank You Shane 😊

[@JoeLiberalism]

Make sure the power is off before you put your hands near that blower motor

[@vtskier777]

How do you set the outside air quantity?

[@TaddyDigest]

Good question I can do a video on that

[@CarlosCruz-kg1qb]

Good start up video.

[@TaddyDigest]

thanks Carlos 👍

[@jeremialfoso5859]

Hello, I have a question. I would like a package unit for my entire house but I don't know how to calculate the tons of refrigerants for my house since my house has two floors and each floor is 6 meters high from floor to ceiling and each floor is 1000 meters high. square feet of surface it would help me a lot if you answered me, thanks in advance

[@TaddyDigest]

kzbin.info/www/bejne/fnKwnoh5qayAjKMsi=4itQdKpsiWvo6r6X This is a short video on how to size equipment this may help you Let me know

[@Themediathinkers]

GREAT VIDEO!

[@zztopinthehouse]

Boom, baby...yeah!!!

[@mark.r8900]

How do you adjust blower speed with this SE control? Assuming belt tension is correct. Thanks

[@TaddyDigest]

I will do a video about this too

[@WillieMakeit]

Through the vfd setting

[@aarongray503]

So I'm doing some start ups on two 15 ton Lennox rtus. Data plate says normal pressures are 236 low and 446 high for 410a. Does that sound normal to you?

[@TaddyDigest]

no that is just the range of pressures but not actual

[@aarongray503]

@@TaddyDigest thanks!

[@roqueherrera2692]

Boss u dint show us how to set the frequency drive

[@frankies1717]

Thank you for this video seriously please make more !

[@TaddyDigest]

thanks Frankie Really appreciate you watching let me know what questions you have I can help you by making more videos thanks 😊

[@eulaliorodriguez5325]

Thank you for this video.

[@TaddyDigest]

You're welcome my friend

[@deansligh3759]

"Need to do a LOTO" proceeds to not do a LOTO

[@DanhNguyen-sf8zo]

Thanks for great video, but can you post the images of capacitors for commercial compressor. Thanks

[@TaddyDigest]

Hey Thank you for watching Yes I will do a video and post pics of the components

[@Jason-wc3fh]

Most commercial compressors will not use capacitors since they run off 3 phase. That's one bit of simplicity in 3 phased motors. No start or run capacitors.

[@DanhNguyen-sf8zo]

@@Jason-wc3fh Thanks

[@josephduffy5544]

Great video content.

[@TaddyDigest]

Thank you my friend

[@obet191]

How can you distinguish phace 1,2,3 with multimeter when theres no color tape in disconecy

[@TaddyDigest]

ok I will do a video

[@TaddyDigest]

Here is a video I did Let me know if this helps

[@TaddyDigest]

kzbin.info/www/bejne/fmGmc2ymnL-UY5I

[@mirularif5139]

How do you pump down this system?

[@TaddyDigest]

you cannot there are no valves

[@mirularif5139]

@@TaddyDigest so if we wanted to change any accessories in refrigerant line. We need to recover the refrigerant or just remove the refrigerant from the system?

[@PBS-nm1uu]

thanks for all the info. waiting for your next video.

[@TaddyDigest]

very cool thank you for watching let me know if there is specific information you need 😉

[@cameronstrong100]

Thank you for this

[@TaddyDigest]

My pleasure!

[@heatncool]

"Beginners guide" 😉

[@eb3872]

thank you sir for the information

[@TaddyDigest]

Always welcome

[@shielduniversity419]

Do an installation video

[@TaddyDigest]

ok deal

[@fitz2180]

What about a combustion analysis?

[@TaddyDigest]

What do you mean

[@fitz2180]

@@TaddyDigest As part of the commissioning and proper start up of the gas burner

[@TaddyDigest]

I thought that's what you meant I usually just set the gas pressure the temperature split Adjust the fan belt and the air flow and the fan speed I really don't worry too much about combustion analysis But anything extra is always welcome Now if it's not a brand new unit then yes combustion analysis is something I do

[@charafcheradi7194]

you are really expert

[@TaddyDigest]

Thank you I need your help Please like hit the bell and become a member

[@solitarioelloboferoz947]

Great video thanks

[@TaddyDigest]

You're welcome bro

[@OffBlackKash]

why isn't the gas line painted yellow?

[@TaddyDigest]

not sure

[@obet191]

I saw a roof unit in the floor can you do that

[@TaddyDigest]

yeah I think your just talking about package unit on ground and ducted in right?

[@obet191]

Yes

[@Ernando.1369]

Hey Teddy, this Ernando. I just wanted to get in touch with you. I just started the trade sometimes I get sidetracked and confuse about certain things I was hoping you could direct me is certifications.

[@TaddyDigest]

Of course I can definitely help you click. The join button become a member and let me know when you join. I will send you an email

[@nicholasflores8783]

I am hoping to get into the HVAC program at my local community college. Any words of wisdom for a newbie entering this work field?

[@TaddyDigest]

Watch my video on what to expect after HVAC trade school

[@andresperez-wc8ty]

Buy tools and probes on day one. As soon as you know the basics start using them everyday. Go to the mock boards and controls and voltage, understand superheat and subcooling, airflow, diagnose bad motors, coils, find shorts, brazing, recovery etc. Also Ask questions when u don’t understand something and buy diagnosing books. Treat school as a job. Write down what you need to learn how to do and do it. Do this and watch how u ll be years ahead of the rest of the class by the end of the program. Good luck!

[@TaddyDigest]

Awesome Thank you for sharing the knowledge 😀😊👍

[@johnmounce8341]

You will learn theory at school. Often times theory and real world application don’t line up. Ask loads of questions

[@paulnacario4190]

So nice Master

[@obet191]

How you wire thethermostat

[@TaddyDigest]

I will make a video for you give me a day or 2

[@TaddyDigest]

I did this video Let me know if this helps kzbin.info/www/bejne/bauxeqOIq9eKipI

[@daniel3735l]

Ptac troubleshooting tips