High side pressure fluctuates on new system.

[LibertyTree]

If its a microchannel condenser the charge will be very light for even the shortest runs and in general will hold almost 20% less than a comparable tube/fin system when fully charged.

Goodman doesn't use Microchannel, but on their AC's they use a 5mm coil. Both are critical charge units (I think the 5mm is a bit more forgiving.) I'm putting my money on overcharge with a side of non-condensables.

[drife678]

Goodman doesn't use Microchannel, but on their AC's they use a 5mm coil. Both are critical charge units (I think the 5mm is a bit more forgiving.) I'm putting my money on overcharge with a side of non-condensables.

non condensibles.

[dna]

Sounds like non-connies also.

[Oldschoolmetal]

I would say overcharged..

[Shylton05]

Sounds like noncondensables. Recover the system, pull a good vacuum, and recharge. Your boss should be smacked for telling to not do anything unless the customer says something about the noise!

[heresjohnnyb]

You have nitrogen mixed in with the 410. May have happened at the factory or with your leak test if you did one. Pull the charge in the system and be careful not to kill your recovery machine doing it. you may have to resort to some diminimus to not damage your equipment.

[LibertyTree]

You have nitrogen mixed in with the 410. May have happened at the factory or with your leak test if you did one. Pull the charge in the system and be careful not to kill your recovery machine doing it. you may have to resort to some diminimus to not damage your equipment.

I read your post and it made me cringe... I just had one of my guy's install a Goodman dry R22 unit. I told him about 8 times that there is no refrigerant in the damn thing and that he needs to let the nitrogen out then pull a vac then charge. This dullard went ahead and pulled a vac then cracked the valves releasing all the nitrogen into the system then turned the unit on... He sat there for 2 hours like a dope trying to figure out why the suction side gauge was pegged out at "retard". I told him that he's the reason why it says "retard"... I went out there and heard the compressor being tortured to death.

[drife678]

Same thing at my company. After I wasted around 15 pounds from two different systems, they finally sent a memo out to all our installers.who cant read anyway. Big sticker right.next to service valves charged with nitrogen, remove and pull vacum then charge.. Lol dont.they get it dry unit....lol

[mgenius33]

I can hear the compressor labor at the higher pressure. My boss said not to worry about it unless the customer calls. I think the compressor may be damaged by this high pressure. Any thoughts out there?

I hope there are plenty of homeowners reading this post!
This is that guy who came in $1000 lower on a full system quote!
Now you know what you're paying for!

I hope your boss goes out of business for ruining my industry! Sorry about your luck. I would suggest finding someone else to work for. You are on a sinking ship!

[Rodney28334]

Make sure the piston isnt clogged, but if it were your sh and sc shouldnt be in line. If it warms up any it will be bouncing off high limit.

[Sicofthis]

There's an easy check for noncondensables get post count up and apply for pro.