I am not sure where you got this information from ? that you can not install air handler in the new construction?

@waisHVAC no you can install it there, sure. It's just a horribly inefficient place to put an air handler and ductwork. Modern efficient design practices always place the air handler and ducts within the building envelope. And from an installers point of view, would you rather service a unit in the attic or inside the living space?

Efficiency nothing to do where you installing the system? to measure the efficiency of central air conditioning and heat pumps. It's calculated by dividing the total cooling output (in BTUs) by the total electric energy input (in watt-hours) over a typical cooling season,

My man, if you think locating air handlers and ducts in the attic does not negatively impact system performance and efficiency, you need to get some remedial training.

@@jackalay23 Mr. Jack, can you send me the info where you found that information because in 30 years, me and million other HVAC contractors installed so many air handlers in the attic. We should all go and sue the manufacturer for making horizontal air handlers for attics,

did you check the condenser for another factory installed liq drier.

Where did you see R 22 TXV? That was on old unit , We installed brand new R 410 coil, and why I use glue? It’s not a commercial project with 50’ expose pipe on the roof, we had only 2 feet expose, pipe and UV tape is approved by building and safety and it looks very neat and clean

i saw it on the original coil. didnt watch till the end where you replaced both the coil and the cond unit . i also used pvc pipe to run the refrigerant lines in. i started ac repair in 1972 after vietnam later worked for hussmann for 30 years later owned my on company doing grocery store repairs in ga

@@henrybucki7813We use Henry UV white glue on commercial buildings, if the line set is over 10 feet long, for short pipe it’s clean to use tape instead of using glue and you don’t want to drip the glue on the concert especially in house like that ,

Yes, you do. That’s recommended by the manufacturer, you can contact York and ask them pimmedia.winsupplyinc.com Or google it Field Kit Installation Manual: H Series - Horizontal by the way, we have to do what the manufacturer recommends because of the warranty, in case something happen, fan control kit comes with the package, and it’s not extra things that I’m adding,

Thank you for comment, but unfortunately, I had to follow the mechanical plan and design provided to us by the mechanical engineers and that’s how they want it ,As I explain, there’s more things will be connected to those contactors , like kitchen hood, sprinkler system and bathroom exhaust fans, because the bathroom fans are over 500 CFM , and the entire system will be controlled by the management computer systems

One more thing for you information you don’t connect the smoke detector to AC contactor that will not shut off the blower you have to connect it to the 24 volt wire goes to the board to shut off the entire system not just a compressor.

Under the Air handler

Hi congratulations and welcome to HVAC business world, definitely it is up to you and your capabilities sheet metal work and installation is easy to learn and there will be always jobs demand for good Installers but being a Technician I will definitely suggest you to take HVAC classes, it’s harder to find job unless your a very experienced technician, and if you can do both it will be better for you, Good luck

@@waisHVAC Thank you sir I appreciate the advice. This is my second year in university at the moment I wanna either drop out or take it part time and do full time apprenticeship with HVAC I have a few interviews coming up on the sheet metal side one commercial one residential. I did wanna do technician and get into refrigeration side of things but realized companies don’t hire non experienced technicians I would need to do a semester of college also I been hearing technicians within companies don’t have much hours whereas installing you always have an opportunity.

Unfortunately I don’t had the socket box with me that day, I know it was annoying to tight the lag bolts with wrench,

Most likely it’s low in refrigerant or Malfunction of indoor ambient temperature sensor at air return port

Then you break the red wire (24 V ) the all furnace will go off

For humidifiers or furnaces you connect the the pump wire to the red wire (R)

No thank you

You can send me email at [email protected]

40 amp breaker

Yes I will post it for you

Ball Valve Digital Manifold pressure tester Duoyi model DY522A

@@waisHVAC thank you

www.duoyitool.com This is the company website

Where do you located?

Los Angeles

I drive everywhere the job site is though. Just depends on where we are working. OC LA IE

We will have very interesting jobs and videos coming soon

@@waisHVAC k I'll be on the lookout

Sure

Of course with Co2

Go play with your toys 🧸

You have to calculate the return and supply duct size based on the CFM of the unit. For example, if you have a 2 Ton system which is 800 CFM, you calculate the size of the duct based on 800 CFM, And you will need a duct design calculator, to find what size of duct you will need to give you 800 CFM return and supply, I hope that helps God bless

DEWALT

👍 good job

You’re absolutely right I’m a little bit careless when it comes to safety but thank you anyway,