The E-Book and Paperback: www.acservicetech.com/the-book Tool List- www.amazon.com/shop/acservicetech Support the Channel- www.patreon.com/acservicetech For those that are looking for the tools used in the videos: (Linked Below) Appion Valve Core Removal Tool amzn.to/2uYr8WL RectorSeal Bubble Gas Leak Detector - amzn.to/2ckWACn 25 Valve Cores - amzn.to/2L37UJU 25 ¼” Brass Port Caps with rubber O-rings - amzn.to/2GIOdD2 Brass Valve Core Tool which holds 3 valve cores - amzn.to/2GFEbm2 Valve Core Torque Wrench - amzn.to/2GHiLoD Locking Cap Universal Lock/Unlock Tool - amzn.to/2GGAoVp Locking caps - amzn.to/2GFXZ8A Ratcheting Service Wrench amzn.to/2dGV4Nh Yellow Jacket Sealright 90 Coupler- amzn.to/2LsU1V7 Yellow Jacket 1pk Compact Ball Valve- amzn.to/2uXdF18 Yellow Jacket 3pk Compact Ball Valve- amzn.to/2AiKfQe Thumb Screw Valve Core Depressor with Backseat- amzn.to/2mR0sCL UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ Yellow Jacket Refrigerant Gauge Set amzn.to/2aenwTq Refrigerant hoses with valves amzn.to/2aBumVI Yellow Jacket Gauge set & hoses amzn.to/2vLVkV9 Yellow Jacket 4 Port Manifold w Hoses amzn.to/2BkuGIq Digital Refrigerant Scale amzn.to/2b9oXYl Ratcheting Service Wrench amzn.to/2dGV4Nh Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe Accutrak VPE-GN Ultrasonic Leak Detector amzn.to/2Zy4IZP FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4 FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6 Ultrasonic Leak Detector with Headphones- amzn.to/2B2cRO3 Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8 QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg JB 6 CFM Vacuum Pump amzn.to/2nqbvo8 Appion Blue 3/8" to 1/4" Vacuum Hose amzn.to/2uYlVyc Appion Red 3/8" to 1/4" Vacuum Hose amzn.to/2uYg6Ro Appion Valve Core Removal Tool amzn.to/2uYr8WL Yellow Jacket 1/4" by 1/4" hose amzn.to/2umtcod CPS Vacuum Micron Gauge amzn.to/2v1nM3O Supco Vacuum Micron Gauge amzn.to/2v1JRiA RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn Magnet Jumpers- amzn.to/2PyKPQZ Alligator Jumpers- amzn.to/2PxqJXn Fieldpiece ST4 Dual Temp Meter amzn.to/2wc1ME3 Fieldpiece Bead K Type Temp Sensor amzn.to/2DBwKfs Fieldpiece Wet Bulb Temp Sensor amzn.to/2RRI7Tw Fieldpiece TC24 Temp Clamp amzn.to/2qHLyjZ UEI DL389 Multimeter amzn.to/2xAdaJf Air Acetylene Torch setup amzn.to/2aQalsb 15% Silver Brazing Rods amzn.to/2gVLyLc Nitrogen Regulator amzn.to/2bXdR5f Nitrogen Flow Meter amzn.to/2brvoBg Other tool links can be found in the video description section. Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal- www.amazon.com/shop/acservicetech
Good explanation of pressure testing. Great point on checking air handler or furnace nomenclature plate for max.pressures. Ive seen a few techs blow out coils by pushing in to much nitrogen on a 22 coil.and selling the customer on a coil due to the leak.... NOT COOL!! There is so many bad field practices that need to stop.. I really appreciate your time/ videos.your patience and professionalism... Thank you for all your time again! Bryan Tyler refrigeration
I don’t know if it’s an option, as I don’t do uploads with ads, but if possible, pile them up at the beginning of the video. The constant disruption makes it hard to focus, and retain the information you’re sending. Great videos!!
It’d be worth noting that if pressure testing the whole system to not exceed 300 psig as the weld of the compressor being on the low side is capable of rupturing at 350 psig. Emerson has a bulletin on this
Thanks for adding that Jeff! We don't need to go crazy when pressure testing systems. Often times techs look at the outdoor max design pressures without looking at the rest of the components, thanks!
@@acservicetechchannel I used your procedures to install a Senville LETO 18K BTU Heat Pump. I am no expert, but the system seems to run very well. To date, I have used it more for heating than cooling! Thanks again for the quality content!
You should add fluctuations on pressure/temperature when left pressurized for many hours! I use 0.5 psig per degree F* Although I’m not sure if it’s correct!
Yeah I mentioned that it can occur but I see a lot more fluctuations than that in the beginning of the pressure test, thanks Pastor Martinez and thanks for Pastoring!!!
Would you leave about a pound or so of nitrogen in the system before vacuuming the unit to keep it all clean. You and your videos make me a better tech. Thanks
Hey JiggyPatel, glad to hear from you! I just did one on brazing a service valve on a small packaged ac unit to date. Look up acservicetech pinch off tool" thanks!
A lot of people did videos on those so I didn't do one. You can use a valve core tool to unscrew the valve core depressor out of the end of the hose. Once that is done, you can get a thermostat screwdriver in there or hook tool and get out the grommet, thanks!
I have 3 of those gauges hooked up outside my house right now to my heat pump. It's been hooked up for 3 days and the pressure hasn't dropped. They disconnected the lines at the unit and they're hooked to the lines going inside my house. Maybe it's the condenser coil or in the fitting he took apart. Only other place the leak could be. They've had to come out the last 2 years and top it off because it loses cooling or heating ability. Then it runs fine for about 6-8 months until they top it off again. What do you think?
Great videos Craig. Speaking of pressure gauges, pressure transducers are cheap ($10 on amazon.) So are the wireless embedded controllers to read them ($10 for a raspberry Pi zero W). A few bucks more for odds and ends and I can monitor my Carrier A/C pressure continuously from inside. Mighty handy in the dessert where the sweat test doesn't work. But the transducers are usually 1/8 in NPT female. What kind of adapter will get me from that to the odd-ball fittings they use on air conditioners? Should I use a tee? Should I bother with low loss connectors if it's only going on once and never coming off? Should I put it on the high or low pressure side? Any advice. If I get it working I'll post it on youtube or instructables.
If it is a standard split system, it is 1/4", and if it is minisplit it is either 5/16 or 1/4". We measure superheat and subcooling so we measure from both sides, thanks!
thanks for this wonderful tutorial, i see you have a cps micron gauge, but your fieldpiece manaford already have a micron gause, can we just use micron gauge inside manaford, i mean ONLY use buildin micro gauge in there, without using blue (low) and red (high) ports/host, is it possible ? thanks
after reading your book chapter 11 of pump down prosedure, if i put my refrigerent all on outdoor unit, then seal 2 service valves, (i got txv system) can i do the pressure test on indoor unit only and whatever pipes it is connecting, is it possible ? thanks. ps. can i vaccum my system with refrigerent still on it ? thanks
i've tested my refigerator for leak..and i tested for leak with air compressor for about 15 hours with 100 PSI pressure on it...and the pressure is drop 3 digit..now the pressure is 97 PSI..question is..is that normal?? i mean the system is fine and there is no leak on that system..or i have leak on my system? i really confuse..please help me🙏
Good morning Sir. After reading your bio I see your in the South Jersey area. I was hoping to find out where exactly. I would love to take your adult education class. I am in the Monmouth county area. Thank you for your content, your videos are of great help. Hope all is well.
Cape May County. I am now presently only doing on site training for hvac businesses. I used to teach at the county tech high school for adults and high school students thanks!
5:50 what’s your Amazon link for the Tee quick connector? Or the Appion valve at 9:29? The Fieldpiece smart probes are hard to be connected directly to service valves, which leads to refrigerant lost during connecting. They should made the screw cap a little bit longer
I am installing a mini-split system. Refrigerant is R410A High side pressure is 550 PSIG Low side pressure is 340 PSIG Using a Yellow Jacket 40331 Red Pressure Gauge with 19110 Quick Coupler / nitrogen. What pressure would you recommend and how long to wait? THANKS!
I pressure tested both sides with Nitrogen at 180 psi. After 24 hours the suction side still read 180 psi but the pressure side was at 0. I don't understand. Aren't both sided connected? What is going on. The leak seams to be very small.
is this a ac or a refrigeration system? most ac systems will equalize pressures when off. but solenoid valves and hard shut off txv do exist in some applications and will stop the system from equalizing
Yes sometimes systems come with a hard shut off TXV that does not allow equalization. That is why I was mentioning to add the nitrogen into both sides of the system when pressure testing. It sounds like you will need to search for the leak between the txv and the liquid line service valve unless the liquid line service valve is open and the outdoor unit is connected. You may want to front seat that to see if it still leaks if you cannot find the problem. The you can pressure test the line set and up to the txv by itself. It should be a large leak if you lost all the pressure, thanks, Alex, Mumixam, and D Green!
It's disgusting that MFG's still assemble evaporators with copper or alum tubing in contact with galvanized sheet metal virtually ensuring that dissimilar metal corrosion will destroy it and consumers will be forced to buy new systems long before they should have. 2:11
a supposed large company came out to my dad's house they didn't have nitrogen only dye that they charge $200 for to put a few ounces in the system come back in a couple of days and look for leaks I told him to pack up and leave they will not be getting their service charge)
If they don't have N2 that indirectly means they also butcher the inside of new and existing line sets brazed with avoidable oxidation not purging while brazing and with blocked screens and plugged caps and TXVs. Sounds like a BBB issue.
What is wrong with testing a leak with dye? Its cheaper then to pull the charge and pressure test then repair leak and vacuum unit. Unless the system was 100% empty. But if there is still enough refrigerant left you can try using a sniffer first then use dye if that fails.
Craig's video is about pressure testing a new install with no refrigerant in the lines yet. The company at your father's place was wanting to do a dye test to search for leaks on an operating system. This is a totally legitimate means for finding a leak. If they diagnosed his system was low on charge and recommended a leak search you need to pay the trip charge, sorry. Nitrogen should not be put into a working system as this is non condensable.
The E-Book and Paperback: www.acservicetech.com/the-book
Tool List- www.amazon.com/shop/acservicetech
Support the Channel- www.patreon.com/acservicetech
For those that are looking for the tools used in the videos: (Linked Below)
Appion Valve Core Removal Tool amzn.to/2uYr8WL
RectorSeal Bubble Gas Leak Detector - amzn.to/2ckWACn
25 Valve Cores - amzn.to/2L37UJU
25 ¼” Brass Port Caps with rubber O-rings - amzn.to/2GIOdD2
Brass Valve Core Tool which holds 3 valve cores - amzn.to/2GFEbm2
Valve Core Torque Wrench - amzn.to/2GHiLoD
Locking Cap Universal Lock/Unlock Tool - amzn.to/2GGAoVp
Locking caps - amzn.to/2GFXZ8A
Ratcheting Service Wrench amzn.to/2dGV4Nh
Yellow Jacket Sealright 90 Coupler- amzn.to/2LsU1V7
Yellow Jacket 1pk Compact Ball Valve- amzn.to/2uXdF18
Yellow Jacket 3pk Compact Ball Valve- amzn.to/2AiKfQe
Thumb Screw Valve Core Depressor with Backseat- amzn.to/2mR0sCL
UEI DL479 Multimeter with temp sensor amzn.to/2jtsUbJ
Yellow Jacket Refrigerant Gauge Set amzn.to/2aenwTq
Refrigerant hoses with valves amzn.to/2aBumVI
Yellow Jacket Gauge set & hoses amzn.to/2vLVkV9
Yellow Jacket 4 Port Manifold w Hoses amzn.to/2BkuGIq
Digital Refrigerant Scale amzn.to/2b9oXYl
Ratcheting Service Wrench amzn.to/2dGV4Nh
Accutrak VPE Ultrasonic Leak Detector amzn.to/2nFYKVe
Accutrak VPE-GN Ultrasonic Leak Detector amzn.to/2Zy4IZP
FieldpieceSMAN360 Digital Manifold Set amzn.to/2BdoaD4
FieldpieceSMAN460 Digital Manifold Set amzn.to/2nB4Fe6
Ultrasonic Leak Detector with Headphones- amzn.to/2B2cRO3
Compact Ball Valve for Refrigerant Hose amzn.to/2KUisW8
QuickDisconnect 90 for refrigerant hose amzn.to/2MMtVcg
JB 6 CFM Vacuum Pump amzn.to/2nqbvo8
Appion Blue 3/8" to 1/4" Vacuum Hose amzn.to/2uYlVyc
Appion Red 3/8" to 1/4" Vacuum Hose amzn.to/2uYg6Ro
Appion Valve Core Removal Tool amzn.to/2uYr8WL
Yellow Jacket 1/4" by 1/4" hose amzn.to/2umtcod
CPS Vacuum Micron Gauge amzn.to/2v1nM3O
Supco Vacuum Micron Gauge amzn.to/2v1JRiA
RectorSeal Bubble Gas Leak Detector amzn.to/2ckWACn
Magnet Jumpers- amzn.to/2PyKPQZ
Alligator Jumpers- amzn.to/2PxqJXn
Fieldpiece ST4 Dual Temp Meter amzn.to/2wc1ME3
Fieldpiece Bead K Type Temp Sensor amzn.to/2DBwKfs
Fieldpiece Wet Bulb Temp Sensor amzn.to/2RRI7Tw
Fieldpiece TC24 Temp Clamp amzn.to/2qHLyjZ
UEI DL389 Multimeter amzn.to/2xAdaJf
Air Acetylene Torch setup amzn.to/2aQalsb
15% Silver Brazing Rods amzn.to/2gVLyLc
Nitrogen Regulator amzn.to/2bXdR5f
Nitrogen Flow Meter amzn.to/2brvoBg
Other tool links can be found in the video description section.
Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal- www.amazon.com/shop/acservicetech
The best video you can see on Saturday morning!
Thanks a lot Tapch MC!
Good explanation of pressure testing.
Great point on checking air handler or furnace nomenclature plate for max.pressures.
Ive seen a few techs blow out coils by pushing in to much nitrogen on a 22 coil.and selling the customer on a coil due to the leak.... NOT COOL!!
There is so many bad field practices that need to stop..
I really appreciate your time/ videos.your patience and professionalism...
Thank you for all your time again!
Bryan Tyler refrigeration
Thanks a lot Joseph, yeah that is no good and we need to do what we know is best for the building owner, thanks!
Best book ever has helped me so much
Thank you very much! We are looking for individuals to post a review the book on amazon if you are interested and thanks for leaving the note!
Thanks 👍 great for supporting your channel ❤
I don’t know if it’s an option, as I don’t do uploads with ads, but if possible, pile them up at the beginning of the video. The constant disruption makes it hard to focus, and retain the information you’re sending. Great videos!!
It’d be worth noting that if pressure testing the whole system to not exceed 300 psig as the weld of the compressor being on the low side is capable of rupturing at 350 psig. Emerson has a bulletin on this
Thanks for adding that Jeff! We don't need to go crazy when pressure testing systems. Often times techs look at the outdoor max design pressures without looking at the rest of the components, thanks!
Excellent video my friend. Really, really good.
Thanks a lot Budget!
As always, excellent information!
Glad you think so!
@@acservicetechchannel I used your procedures to install a Senville LETO 18K BTU Heat Pump. I am no expert, but the system seems to run very well. To date, I have used it more for heating than cooling! Thanks again for the quality content!
As usual awesome video👍👍
Thanks a lot Steve!
Excellent video! Thx
Thanks Mike!
You should add fluctuations on pressure/temperature when left pressurized for many hours!
I use 0.5 psig per degree F*
Although I’m not sure if it’s correct!
Yeah I mentioned that it can occur but I see a lot more fluctuations than that in the beginning of the pressure test, thanks Pastor Martinez and thanks for Pastoring!!!
Great tips!
Thanks a lot Blue Collar!
Would you leave about a pound or so of nitrogen in the system before vacuuming the unit to keep it all clean. You and your videos make me a better tech. Thanks
Great video Craig. Can you do a video on type 1 appliances ?
Hey JiggyPatel, glad to hear from you! I just did one on brazing a service valve on a small packaged ac unit to date. Look up acservicetech pinch off tool" thanks!
AC Service Tech LLC I have a slushy machine. That need recharge with 404A. And none of the company around here carry 404a tank. Seems ironic.
Refrigeration companies typically will have R404A but Air conditioning companies usually will not, thanks!
Do you have video on replacing gromits in hoses? I usually replace the hose.
A lot of people did videos on those so I didn't do one. You can use a valve core tool to unscrew the valve core depressor out of the end of the hose. Once that is done, you can get a thermostat screwdriver in there or hook tool and get out the grommet, thanks!
I have 3 of those gauges hooked up outside my house right now to my heat pump. It's been hooked up for 3 days and the pressure hasn't dropped. They disconnected the lines at the unit and they're hooked to the lines going inside my house. Maybe it's the condenser coil or in the fitting he took apart. Only other place the leak could be. They've had to come out the last 2 years and top it off because it loses cooling or heating ability. Then it runs fine for about 6-8 months until they top it off again. What do you think?
Do you have a video of EEV and the stepper motor ? How they work and diagnose It would be great if you do. That way I can show the guys at work.
I do not to date. Thanks for letting me know what you would like to see!
Yes sir I would
Great videos Craig. Speaking of pressure gauges, pressure transducers are cheap ($10 on amazon.) So are the wireless embedded controllers to read them ($10 for a raspberry Pi zero W). A few bucks more for odds and ends and I can monitor my Carrier A/C pressure continuously from inside. Mighty handy in the dessert where the sweat test doesn't work. But the transducers are usually 1/8 in NPT female. What kind of adapter will get me from that to the odd-ball fittings they use on air conditioners? Should I use a tee? Should I bother with low loss connectors if it's only going on once and never coming off? Should I put it on the high or low pressure side? Any advice. If I get it working I'll post it on youtube or instructables.
If it is a standard split system, it is 1/4", and if it is minisplit it is either 5/16 or 1/4". We measure superheat and subcooling so we measure from both sides, thanks!
Did you ever get it working?
Will remaining oil in the tubes affect your vacuum reading?
In my mind the oil will evaporate just like water and ruin your vacuum reading?
thanks for this wonderful tutorial, i see you have a cps micron gauge, but your fieldpiece manaford already have a micron gause, can we just use micron gauge inside manaford, i mean ONLY use buildin micro gauge in there, without using blue (low) and red (high) ports/host, is it possible ? thanks
after reading your book chapter 11 of pump down prosedure, if i put my refrigerent all on outdoor unit, then seal 2 service valves, (i got txv system) can i do the pressure test on indoor unit only and whatever pipes it is connecting, is it possible ? thanks. ps. can i vaccum my system with refrigerent still on it ? thanks
How do you isolate the evaporator or the condensor when pressure testing?
If you want the outdoor unit isolated from the line set and evap coil then the two service valves will need to be front-seated, thanks!
@@acservicetechchannel great question, and a great answer!!
Why are your gauges set at 410A if you are dealing with an R22 system???
OH OH! What happens if my friend opened his lines before he did a vacuum test?? the system's power is not or has never been turned on.yet. PLS help
i've tested my refigerator for leak..and i tested for leak with air compressor for about 15 hours with 100 PSI pressure on it...and the pressure is drop 3 digit..now the pressure is 97 PSI..question is..is that normal?? i mean the system is fine and there is no leak on that system..or i have leak on my system? i really confuse..please help me🙏
what's your opinion about Victor ESS32-PFH 800 PSI Hybrid Nitrogen Purge Regulator? can I use it instead of pressure regulator and a flow meter?
Where are you putting 800 psi? Most coils test out under 650. So no, not recommended for HACR.
Good morning Sir. After reading your bio I see your in the South Jersey area. I was hoping to find out where exactly. I would love to take your adult education class. I am in the Monmouth county area.
Thank you for your content, your videos are of great help. Hope all is well.
Cape May County. I am now presently only doing on site training for hvac businesses. I used to teach at the county tech high school for adults and high school students thanks!
You’re not a bad person.
5:50 what’s your Amazon link for the Tee quick connector? Or the Appion valve at 9:29? The Fieldpiece smart probes are hard to be connected directly to service valves, which leads to refrigerant lost during connecting. They should made the screw cap a little bit longer
I have the links at amazon.com/shop/acservicetech thanks!
Making it so difficult 😂
Ha ha, there is certainly more behind the reasons we do what we do. I just want everyone to be aware, thanks!
I am installing a mini-split system.
Refrigerant is R410A
High side pressure is 550 PSIG
Low side pressure is 340 PSIG
Using a Yellow Jacket 40331 Red Pressure Gauge with 19110 Quick Coupler / nitrogen.
What pressure would you recommend and how long to wait?
THANKS!
The yellow jackets dont really go as high they only ho to 300 but you dont have to go 100% pressure test on them
I pressure tested both sides with Nitrogen at 180 psi. After 24 hours the suction side still read 180 psi but the pressure side was at 0. I don't understand. Aren't both sided connected? What is going on. The leak seams to be very small.
is this a ac or a refrigeration system? most ac systems will equalize pressures when off. but solenoid valves and hard shut off txv do exist in some applications and will stop the system from equalizing
@@james6794 Thanks for getting back to me. This is an ac system, Trane XR12, 1-1/2 ton with a Trane TWE air handler
I had a carrier system with the similar scenario. Txv was closed shut. Txv Warranty swap out fixed it.
Yes sometimes systems come with a hard shut off TXV that does not allow equalization. That is why I was mentioning to add the nitrogen into both sides of the system when pressure testing. It sounds like you will need to search for the leak between the txv and the liquid line service valve unless the liquid line service valve is open and the outdoor unit is connected. You may want to front seat that to see if it still leaks if you cannot find the problem. The you can pressure test the line set and up to the txv by itself. It should be a large leak if you lost all the pressure, thanks, Alex, Mumixam, and D Green!
@@acservicetechchannel Thanks for your reply.
It's disgusting that MFG's still assemble evaporators with copper or alum tubing in contact with galvanized sheet metal virtually ensuring that dissimilar metal corrosion will destroy it and consumers will be forced to buy new systems long before they should have. 2:11
That leak detector is fucking expensive I won’t be using that
It is one of those things. Multiple cheap detectors that only work in certain scenarios or one that works for just about all, thanks!
Pressure Test Tag #powerofcte
We don't have all ur fancy tools bro
a supposed large company came out to my dad's house they didn't have nitrogen only dye that they charge $200 for to put a few ounces in the system come back in a couple of days and look for leaks I told him to pack up and leave they will not be getting their service charge)
If they don't have N2 that indirectly means they also butcher the inside of new and existing line sets brazed with avoidable oxidation not purging while brazing and with blocked screens and plugged caps and TXVs. Sounds like a BBB issue.
What is wrong with testing a leak with dye? Its cheaper then to pull the charge and pressure test then repair leak and vacuum unit. Unless the system was 100% empty. But if there is still enough refrigerant left you can try using a sniffer first then use dye if that fails.
This is a perfectly legitimate way, and commonly used, method for checking for leaks.
Craig's video is about pressure testing a new install with no refrigerant in the lines yet.
The company at your father's place was wanting to do a dye test to search for leaks on an operating system. This is a totally legitimate means for finding a leak.
If they diagnosed his system was low on charge and recommended a leak search you need to pay the trip charge, sorry. Nitrogen should not be put into a working system as this is non condensable.
@@missionairkevingrider1869 Use an ultrasonic. No dye necessary and fast.
Great stuff, Thanks Craig
Thank you very much Stuart!