We wanted to thank you all and bring you a compilation of Top HVAC Tech Tips from some talented HVAC Techs. Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. This condition is similar to what happens when an external TXV check valve fails. Once we establish that the valve is being fed with a full line of liquid at the appropriate pressure we check the superheat at the outlet of the evaporator to ensure that the valve itself is functioning properly and /or adjusted properly. RTFM Soft Gildan T-Shirt. If your thermopile gives enough voltage but the valve won’t open, check your switch/tstat and even the wire itself for any significant resistance or short. Related Pages. HVAC Shop Talk is an HVAC based podcast where Zack Psioda talk about all types of issues that affect HVAC technicians, company owners and students. So with a 75VA transformer, you can run a maximum of 3.125 Amps, if you needed more power you would need to either go get a larger, more expensive transformer or…. If you want to look at the gas valve, you need to hook your meter on the wires at the valve itself. The higher the % of the coil being fed the higher the capacity of the system and the higher the efficiency of the coil. The Smart Passive Income Online Business and Blogging Podcast, Matt Nelson : Mechanical Engineer & Building Commissioning Authority, Building HVAC Science -Comfort, health & energy efficiency. #1 – It helps ensure we are not flooding the compressor. Featuring Eric Mele, Andrew Greaves, Sam Behncke and of course Bryan Orr. If you were […] The post A Shocking Discovery appeared first on Bryan Orr. Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. In case you are like I was, a piston is a fixed orifice metering device used in systems for many years. Video Creator. Regular price $14.00. Carrier used to call their pistons “accurators” and maybe still do although I haven’t heard that term for years. This is the same sort of thinking when a tech is having a hard time pulling a vacuum and they add dry nitrogen to the system to “absorb” the moisture. This is one reason why a properly sized metering device, evaporator coil, and load to system match must be established to result in an appropriate superheat at the compressor. I’ve done podcasts and videos about how air can “hold” less moisture when it is cooler and more when it is hotter. Details About Us. Log In. Including recorded tech training, interviews, diagnostics and general conversations about the trade. Thank you for this podcast and thank you for making the trade a better place. The easiest way to listen to podcasts on your iPhone, iPad, Android, PC, smart speaker – and even in your car. Secondly, the nitrogen has no special properties that allow it to “grab” moisture. This will result in high suction pressure, low superheat and low subcooling. For the gas valve/board dilemma: What is HVAC? Gas Furnace Diagnosis & Inspection w/ Jim Bergmann, Pitot vs. Static Pressure Probe - Short 104, Balancing Evaporators in a Circuit Using the TXV. The piston shown above is the Lennox / Rheem style. However, the pressure switch port (where the tube is attached on the collector box) should be at the bottom of the box, usually near the drain port. Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. That vacuum is what the pressure switch checks for. Listen now. If the superheat is too low on a TEV system we would say the valve is too far open. $16.00. Including recorded tech training, interviews, diagnostics and general conversations about the trade. ORIGINAL Beer Can Cold T-Shirt. Bryan interviewed Steve Rogers and Gary Nelson from The Energy Conservatory discussing Blower Door ACH50 measurements vs. Natural Infiltration rates. I may be a little late to the game here since pistons are a dying breed but they are simple enough that a return trip for a “failed piston” seems like a huge waste. HVAC systems are designed and installed by degreed or certificated technicians to promote clean, comfortable, efficient airflow in offices, homes, apartments, and commercial buildings. you could connect another identical one in parallel. For free. If something gets into or covers the orifice bored into the piston it can cause a restriction resulting in low evaporator pressure, low suction, high superheat and normal to high subcool. “Bryan Orr is a great industry podcast,” Headings said, referring to Orr’s HVAC School. How do I know which to check and what am I checking for. This is definitely the case with air and nitrogen “absorbing” water. HVAC School - For Techs, By Techs. The world Stanley grew up in was not a world that made sense. Hvac MEMES. If you connected two 75VA transformers in parallel you would then have 150VA of secondary capacity which can be necessary in some cases with multistage commercial units or some large accessories. We work in the best trade out there and this is the spot to get Official HVAC School gear that supports the trade. Bonus and ad-free content available with Stitcher Premium. Bryan is the Father of 10 kids and husband of a Jedi Princess. Who is Bryan Orr? Keep coming with CO2 racks! #4 – Superheat helps us diagnose the operation of an active metering device (TXV / TEV/ EEV). My name is Matt and I am a newer tech (fully licensed this September, have been doing the work for 2ish years) who lives in Northern Ontario, Canada. Topics - Leak detection - HVAC vehicles - Mistakes made - A lot of joking around × About the Podcast. HVAC School - For Techs, By Techs Bryan Orr It can drop so much on a fixed orifice system that when the system is run outside of design conditions the superheat can easily be zero resulting in compressor flooding. HVAC School has reached 100k subscribers!! Find an HVAC training school near Bryan, TX. The amount of knowledge I have gained and been able to pass on to the technicians I work with is unbelievable. If it’s dirty,  recommend cleaning. For employers and employees looking to navigate the new FMLA / FFRCA legislation, April 8, 2020; 0; 0 comments . Comedian. – How to easily test for gas valve failure, what are the expected resistances across the solenoid in the gas valve? The installers I worked with often forgot to put in the correct size. The easiest way to listen to podcasts on your iPhone, iPad, Android, PC, smart speaker – and even in your car. In most cases the pilot tube/orifice is dirty, the thermopile is too weak, or, if it works with a wall switch, very very common: the switch is bad. Personal Blog. All partner HVAC trade schools are accredited and have financial aid assistance for students who qualify. The app that helps you remember some things you forgot along the way, as well as helps you remember some things you forgot to know in the first place. My questions for you are, (these are just ideas for your podcast though help is never turned down), On a millivolt system (runs off of a thermopile) The truth is you can connect two transformers together so long as you are careful, but you need to know why you’re doing it and then do it properly. Salesforce Advanced Administrator Certification Test. You just turn the stem clockwise enough to get Official HVAC School gear supports! Your inbox the ( near ) daily tech Tip hvac school bryan orr right in your inbox seated. 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Has a much smaller size and is directional become extinct I see fewer fewer... Electrical flow or refrigerant circuit dynamics in compressor lubrication issues over time without need! Look at the wheel understanding of your job, this is the most listened to podcast the.