Great video. I appreciate seeing a company doing the right things in the HVAC industry. For instance I could never get over the fact that some in my area can do a procedure like this in an hour. What I mean to say is I suspect that they are blowing the charge and not really drawing a deep vacuum as well. And they wonder why they get call backs to fix things in a year or less. Thanks again for the video. Keep up the good work. Maybe I need to relocate to your area and work for you instead of my own company . Thanks
HA HA HA BLOWING THE CHARGE ,,,,wanna see that shit all day long ,,,just go to the east coast FLORIDA ,,,,that goes on all day long i seen it with my own eyes and they dont even care if you mention it to them ,,,,,the guy blowing the charge was a cuban fellow who did not speak a whole lot of english acting like a dummy when i asked him about it so ,,,,,,you see ,,,,,his boss told me that trump does not give a hoot about the EPA ,,,,,that of course is for another day, and not here to discuss ! just saying
RIP R-22 I will miss you. Knew you so well and you worked oh so well in hot sticky environments... At least R438a won't destroy quite as many ozone molecules up there :)
Just because the condenser says TXV dosen't necessary mean there is a TXV on the air handler...Just thought I'd throw that out there.....Could have been changed to a piston....
What is the average cost for this conversion? I would like to have an idea of what to expect to pay. It seems like every HVAC technician I've spoken to are quick to give you the "your HVAC system is old and needs to be replaced" speech. When I ask about the conversion they all seem to disapprove of that idea or they say it's not worth the cost. How can they just say that when a system is 10 years old and can be retrofitted to use a better refrigerant.
Jose Vargas, It is not the MO99 that causes Acid, It is moisture left in the system. If a person replaces the drier and evacuates to 500 microns or better, you will not have moisture nor acid. 1000 microns is not not good enough.
Question. If the 22 charge was sufficient to begin with( hence recovery of the 22) why would you screw with a retrofit? If it ain't broke than wait till it does THAN do the retrofit. Rs-44 is a DIRECT drop in btw. Nice step by step instructions though thx for sharing.
I can think of at least 4 people that do "side work" that just top off r22 with m099 or 407c. it's just ridiculous. All I can say is People get what that pay for.
Great video. The company I work for uses this MO99 and like the results. Only have 1 question what app do you use for conversion? Have not found any I like.
Everyone always says the charge is 95% of 22 for the MO99. This has not worked for me. I have 10 ton package units with 2 stages, 5 ton each. When I charge to 95% it always frost up and eventually freezes at the orifice tubes (no txv). Am I trying to convert with the wrong refrigerant on these larger package units ?
I know this is 4 years old but big stores/ Lennox commercial units we have converted to MO99 and what they have found is, if the data tag states 10lb of R22 then use 11lb of MO99, 1lb extra. That has worked for years.
David Townsend the mo99 is very close to the same temps and pressures so if you use the same charging method of super heat or sub cooling required by the system it will work perfectly
yes, because you are adding the refrigerant in the liquid form. you should add it very slowly, or use a defuser head on your hoses. other wise you'll find you have over charged the system. also wait 5 min after adding the m099 to become stable in the system, and show the true super heat and sub cooling . great question!! ps comment on the give away video to be entered into the drawing thanks
i have been using mo99 since 2009 and never had a problem with any system so long as there are no freon leaks you pull a vacuum to 500 microns and you change all of the seals you shouldn't have any problems
I was reading up on mo99 and in one of the articles it says you may need to add oil to the unit which is something I've never heard of or done on a unit. will this be necessary on a unit like this?
Do not always trust the TXV. You dont know who and how evap coil was install at the beginning, specialty in new construction. Txv might be too close( restricted), or too open ( flooded evap coil ). Txv it's a superheat regulator. Make sure you ck both.,,sub cooling and super heat). Some txvs , and depending on the SEER on the unit, or brand, for instead...the txvs that are factory install on trane or American standard coils are set up to work with 18 degrees superheat, regardless on the subcooling recommend at unit data plate, while many coils txvs are set for 12 , 13 degress. Always ck your superheat, regardless of what txv says. You might have a very superheat ( less then 5) or high super heat ( more then 22 ). If you have a defective TXV , and just for example, its too open , you will overcharge unit, flooded up coil, then bye bye compressor valves. As well , if your evap coil came with piston, and due to budget issues you wont be able to install a TXV, all units technical support will be able to provide the orifice or piston side that is comparable with the condenser unit. There are also chats for piston size, depending on efficiency of the the unit, however, the super heat recommend is recommended for piston. Some unit contains both, subcooling or superheat.
Looking for a pros opinion. I have recently been told by the company i work for, we will no longer be using MO99. It causes acid in the system. If you recover vacuum and replace your dryer like in this video that should not happen. Right?
I could nit agree more. Now i have converted almost 50% of the units on a property i wor at to MO99 and this New company wants to come in a start using NU22. What are you thoughts on this product?
@@mattlang3355 you can just add 15-20% more POE oil to the system for oil return to the compressor. Yellow Jacket makes oil pumps that you can use on the Suction line to add POE oil to the system.
Rule of thumb....the manufactures nameplate on the condenser is based on a 25ft line set. The 4.63lbs. is based on 25ft. When you are using other refrigerants they perform differently in the system. MO99 doesn't require as much refrigerant as R22 in this application. Secondly, is you have a 30ft run you will obviously need more refrigerant but the charging principles are the same. HVAC 101. TXV charge with sub cool, fixed office charge with superheat. Thirdly, if you want to add new compressor oil or change it then do so. The MO99 guidelines specifically state you don't have to change the oil just change the filter drier and the schrader cores. MO99 works with mineral oil.....there's only one way to find out and thats try it yourself.
You can add liquid refrigerant just always add liquid on the high side. If your unable to add refrigerant use your recovery machine and force it into the high side. Rookies
