Always fascinating, the Difficulty in checking by feel is learning what it should feel like. So, you need to play with properly charged systems before you develop the skill. Good video
@TandNServices
10 жыл бұрын
I'm waiting see how the correct air flow affects the charge. Thanks GFM
@grayfurnaceman
10 жыл бұрын
T&N Services LLC. I have series of 4 videos on this. They will be coming out this month. GFM
@TandNServices
10 жыл бұрын
grayfurnaceman I can't wait
@Volusiaev
10 жыл бұрын
I'm very impressed with the hand test. You're the best.
@jhhvacplumbing1944
10 жыл бұрын
Nice vid Gray
@dieselhater
10 жыл бұрын
Your the man. Us old timers have forgotten more than alot of these new guys will ever learn lol
@SteveSam66
10 жыл бұрын
GFM, thanks for posting. Good Stuff
@joeshearer1247
10 жыл бұрын
Wow 1oz. My father is old school and swears he can charge a unit just as good as me with only his hand.
@bdagle
10 жыл бұрын
I'm an old dude. For years I charged unit's by hand! Today, I'm a little bit more sophisticated. I would suggest that you feel the suction line as it enters the condensing unit. This is where you would most likely be checking it as you were charging.
@grayfurnaceman
10 жыл бұрын
B Dagle Maybe it was not clear in the video but that is where I was checking superheat. GFM
@bdagle
10 жыл бұрын
Ok! It look to me as if you were at the coil. No problem!
@franciscocastellanos9157
10 жыл бұрын
Check your gage temperature clamps for accurate reading, seems to be a bit high for a R-22 suction pressure, great video.
@grayfurnaceman
10 жыл бұрын
The high pressure is from high ambient and very high airflow. I did this with a number of different airflows and both high ambient and lower ambient to see if it could be done under different conditions. GFM
@Straycurrent
10 жыл бұрын
The blindfold test !! That's a great demo. Since you were working with a high ambient, do you shoot for a feel a little above the beer can norm? Thanks for the video.
@grayfurnaceman
10 жыл бұрын
Straycurrent The way I look at suction temp, is that with high indoor ambient needs, if anything, less superheat to help keep the compressor cool. GFM
@jspinosa50
10 жыл бұрын
Need help! I installed my Goodman 3 1/2 ton AC unit several years ago. The evaporator is in the attic about 15 feet above the condenser and 10 feet horizontally. I ran the liquid and suction lines a foot above the evaporator. I did not put a trap at the evaporator thinking the height of the lines above the evaporator would act as a trap. The problem is in the liquid line I get a 3 second surge and foam in the liquid line sight glass and a surge sound at the compressor. And I cant pump the unit down. VALVES bad? Also I cant get the evaporator temp. below 50 degrees on an 85 degree day. Can you help? thanks
@grayfurnaceman
10 жыл бұрын
john spinosa First I need to know when the surge comes. On startup? GFM
@jspinosa50
10 жыл бұрын
Throughout the normal cycle every 10 seconds when unit is on. Not on startup. Startup is normal. If its the compressor I'm going to put a new condenser in, Its easier for me. But I need a r22 unit. thanks
@thesmoothjazzguy2012
10 жыл бұрын
It should only be 800 CFM
@grayfurnaceman
10 жыл бұрын
John Smith This unit is being tested with several different airflows to see the reaction of the system. GFM
@thesmoothjazzguy2012
10 жыл бұрын
Oh so it's just a simple demonstration setup.
@michaelkranz2529
7 жыл бұрын
How do you know you have 1470 CFM ? I call bs . Hand job !
@grayfurnaceman
7 жыл бұрын
The CFM was calculated using the temp rise using electric furnace elements. GFM
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