"So did it drop down to low fire? Yep, it dropped down to low fire. We can bring some cold air into the building, that'll bring her back up to high fire."
"You always want to make sure that you're using a torque wrench when connecting mini-split lines."
"Two things are happening: you're gonna have the oil between the copper and that's gonna help you seal up this joint along with the proper torque."
"But that being said, have no fear, the next posting will be the reinstallation of this HVAC box after I replace the evaporator core."
"First off we're running a low load on this evaporator let's go look at my outdoor air temperature right now is 64 degrees my return air temperature is 62 degrees."
"Hope this video has helped you understand how to add refrigerant into a system and how to check the refrigerant charge while doing it."
"You have much higher head pressure and you have much higher suction pressure than what we're normally used to."
"The wider you set your cycle rates or time between ons and offs, the wider your temperature swings in room temperature."
"I can't tell you how many times people will puff their chest and say, 'Yeah, I got my Measure Quick, and what's your airflow?' 'Well, it's 400 CFM per ton.' It's... you might as well be grabbing that suction line saying it's the proper temperature."
"It's kind of like that magic eight ball for HVAC, you know, where you can actually look at what the system is doing and kind of predict what it's going to do."
"You've got to make sure that your supplies and returns are strategically placed away from each other."
"It's almost like being a HVAC palm reader, you know, you just read the lines."
"There's a big difference between a technician and an engineer as HVAC technicians."
"yep so having an HVAC system is pretty cool that see on a truck it's really cool"
"We're gonna have to put r22 into the low side right here and a little at a time."
"If your target superheat is seven degrees and you have actual superheat of seven degrees, then you're accurately charged."
"If for some reason your heat exchanger is blocked or for example the chimney cap on your roof collapses or it gets iced over the exhaust fumes that are supposed to be exhausting out the chimney will start to roll backwards."
"You walk up to a condenser okay it's running you can hear it running what is the very first thing you do when you walk up to that condenser? Put your hand over the top."
"You grab the suction line right and how cold should the suction line be? Beer can cold."
"You start randomly testing stuff just like you just grab a meter and you're just like all right let's just start touching it to things and see what I get."
"Quite honestly, this is probably 50% or 60% of all problems that occur with HVAC systems."
"Psychrometrics are so important to the design of buildings, and in helping engineers design HVAC systems for all types of applications. It's vital for human comfort."
"One of the less obvious benefits of driving a fully electric vehicle like a Tesla is that you can run the HVAC system all the time without having to also run a gas or diesel engine to power it."
"So if it is, yeah, don't replace it. If it's not, replace it. Or, you know, even like with old HVAC, note that you will need to replace that kind of include that in your budget as an item that's coming up."
"Correctly size systems, more surface area in the evaporator coil, lower airflow CF bombs, all those things will help you with the dehumidification discussion."
"It's a pretty cool technology so what ends up happening is you isolate a section of the ductwork so you block off all the diffusers with these foam blocks and you isolate off the section so the evaporator coil and everything is not accessible either."
"Getting accurate readings of wet bulb temperature helps HVAC professionals make informed decisions about indoor climate control."
"The Unico system, you guys know this. This is that really small duct system."
"Evaporator coil leaks can be very frustrating."
"Depending on the area that you're installing your ductwork, some areas require you to run dedicated return air ductwork to every space that can be basically closed off."
"This air handler is actually going to be up on top of this return plenum."
"Air conditioning has wide applications in residences, retail facilities, hotels, educational facilities, healthcare facilities, and more."
"HVAC systems are designed to provide a comfortable and healthy environment for the occupants of the spaces they serve."
"As the altitude increases, the density of the air is reduced and the HVAC equations presented on the previous slide have to be corrected for the change in actual density."
"The evaporator's job is to absorb heat."
"The compressor's job, once it starts up, is to pressurize the system and move that refrigerant."
"The condenser takes that heat and moves it to a place where it doesn't matter."
"The metering device regulates refrigerant flow from one side of the system to the other."
"Dampers should be located where they can be accessed for troubleshooting."
"If your HVAC equipment fuse is blowing, it's not the zone system."
"If the coil is dirty and I'm not pulling enough airflow through, I'm decreasing cooling and heating."
"Every EWC zone panel comes with a screwdriver which is awesome, it really is awesome guys."
"The zone board's kind of the brains of the operation."
"Choose the type of HVAC system you want to control."
"We're heat pumps, so we're going to switch that over to heat pump."
"That means we can focus our attention on how to turn that basic, single zone AC into a multi zone one."
"You're delivering the air where it needs to go."
"Quiet, both indoor units and outdoor units as well, extremely quiet system."
"Always recommend an HVAC technician, a service and cleaning of the heating and or cooling system if it hasn't been serviced and cleaned within the past year."
"Recovery is to remove refrigerant in any condition from an appliance and store it in an external container."
"A package type of air conditioning system is a unit you can keep at the rooftop, and air will be circulated into the entire house through the ducting."
"It's not just for HVAC performance; this is a health issue."
"Superheat tells you that all the possible heat transfer has occurred and there's only gas refrigerant that's being fed to the compressor."
"We have the correct amount of refrigerant in the system so it can do its maximum job of pulling that heat load out."
"An HVAC system provides optimum temperature and indoor air quality for data center performance."
"These are all the considerations that you need to have if you need to do a standard HVAC design load calculation."
"VRF is a mature technology and the preferred method of heating and cooling in many parts of the world."
"The four components of the refrigeration cycle are evaporator, compressor, condenser, and expansion valve."