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Christopher Gonzalez at HVAC Technical Academy – Central Florida
Christopher Gonzalez shares How to Perform an HVAC Pump Down (video)
Christopher Gonzalez shares How to Perform an HVAC Pump Down (video transcript)
HVAC Technical Academy
Sanford, Florida
July–August 2026 Session
Good morning, everybody. I’m Chris. I’m here with HVAC Technical Academy. I’m going to show you how to do a pump down. This right here is going to be your best friend when you do a pump down because you’re going to need your service your your service wrench. So, first thing I would do is go to set up my gauges over here if you want to bring it over here. I would set up my gauges. I would turn it on. I would make sure I take my liquid line first because you want to make sure you get the liquid line before the suction
line because you don’t want you don’t want refrigerant entering through the suction line after you pump it down. Now, once you set up your gauges on your liquid line, which will be your red your red hose, I would take my suction line, my blue hose, put it on. And then I would check my pressures. I would take my my wrench like I said would be your best friend. And I would start cranking it closed. All right, I would go clockwise and do it like this. It is already closed cuz I closed it. But I would
close it like this. I would check my pressures. And you don’t want it to get below five because five would be too low. You want it precisely maybe at 25 PSI and then you’re good. Once you get it to that, you’ll hear a specific sound. After you will hear a specific sound that sound like it’s starving or the refrigerant is emptying the system. Then you would go to your suction line and you would you would turn it also clockwise to open it to close it, sorry. To close it. Once it’s closed,
then you check your pressures and make sure it’s all closed and that’s how you would do a pump down. And then the reason for a pump down is so that you restore the refrigerant inside your condenser because let’s say you’re working on like your inside air handler, you want to make sure no refrigerant is going through there. So, you now you want to make sure that your condenser is stacked up with refrigerant so that it does not enter your air handler. I’m here with HVAC Technical
Academy. It’s been nice talking to you.