hello everyone this is Noah and the purpose of this video is to help those
that are going to for the very first time put into their hands air
conditioning hvac gauges and you may have just started working at an AC
company or an HVAC company as an apprentice and you're trying to learn
the trade or maybe you are in another field of work and you want to get into
the HVAC trade and I know the the thing that intimidates a lot of new ones is
the gauges and where do I connect them and how do I know where to connect them
and what if I get the hoses connected in the wrong place how do I know what tip
can you give me to make sure that never happens to me and that's the purpose of
this video so this is for someone that for the very very very first time you're
going to be holding gauges into your hand and you just want to know exactly
where they go so you you look at your gauges and you have yellow holes in the
middle and then you have a red hose and a blue hose so here's something that's
gonna help you easily determine where it goes so you never get them crossed as
far as where they connect to the condensing unit outside so as you know
in the air conditioning world you have red which is represented with hot and
blue which is cold actually if you drive around town or if you look at billboards
with logos with different air conditioning advertisements and
commercials you'll notice that most logos have a red and a blue and the red
is for heating the Blues for cooling so that's that's an easy way to tell I mean
think in your head you're you're on fire you're hot it's red you're cold as ice
blue so with that in mind if you look at the line here on the right-hand side
where the red hose is connected to it this is what is known as the high side
and generally speaking your high side when of course when the unit is run
it's gonna be warmer than your low side here which is this copper tube here
which is also going to be colder to the touch so when when the system is running
this is gonna be warmer or hotter this is going to be colder one easy way to do
this and to remember it in your head is let's choose a color here is look at the
two H's here hot side high side they both begin with a letter H so you know
that your high side which is your high pressure the refrigerant is flowing this
way okay into the home into the air handler evaporator coil that's your high
side and then the refrig this is also leaving the unit as a liquid and it's
returning back to the compressor as a gas so when you keep that in mind the
way the refrigerant is flowing in and somewhere behind us law is your
compressor and of course this tube right here after it leaves the compressor goes
through the coil and it eventually goes here so that's one way to remember hot
starts with a letter H high side also the letter H that's how you know so if
if you were out in the field and your trainer or someone that's teaching you
wants to test you and say okay here you have the red hose and the blue hose go
ahead and connect it to the unit the unit is running and you feel this side
here okay which is your high side is going to be hot and of course hot is
represented by the color red so you're going to connect your red hose to it
that's how you know and your blue hose which is this one here is going to be on
the colder side which is your suction side you can also have little ways in
your head so you can recognize this now your trainer might very well tell you
I'm not gonna allow you to touch the lines I want you to memorize this and I
want you to do it right so now you can't determine which one's
hot and which one's colder well use other things that's going to help you
your liquid line is also gonna be smaller so if you can pair up your
smaller with your red hose okay and then your
blue hose with the larger that's you can also memorize that in your head now this
is something I've learned through different text that when they started
they had the same dilemma and sometimes they'll tell you well in the winter time
and the winter months it's out of the - between summer and winter
I prefer summer why because winter you have to scrape ice you have black ice on
the road you have accidents you have to shovel your driveway and and
they would use this phrase winter sucks compared to summer so then that's
another way you can memorize it and use your suction line as your cold okay
think about winters cold suction line that's another way to do it
okay suction cold blue cold and that's how you know your blue hose goes into
your suction line whereas your red hose goes into your liquid line okay so you
have your blue hose here your red hose here connected to the liquid line also
known as a discharge line on the manya on the high side or the liquid line
because remember refrigerant again is being discharged from the compressor
going this way and your suction line because it's actually creating a suction
like the vacuum cleaner where the refrigerant is returning back into the
compressor as a gas like we talked about before so again this is some little tips
that are going to help you so you can so you can do this on your own
if you're being trained on the field I'll get that later if you're being
trained on the field for the very first time and you just want to make sure you
never confuse the two lines or the two hoses and get them in the wrong place
this is just a little kind of like first day on the job
gauges for dummies so we hope it's very beneficial to you and it helped you
out please post any questions or concerns at the comments section and
we'll try our very best to answer them for you thank you very much and have a
nice day
you