New System Charge Question

[KATZ]

Is it okay to open high/low valves in a new factory charged R4110 system while system is under vacuum?

[jpsmith1cm]

A qualified installer already knows the answer to this question.

If you've got to ask, then you probably shouldn't be tinkering with those valves.

[catmanacman]

Yes you can although i weigh in any additional needed refrigerant 1st then open the valve

[jimj]

Is it okay to open high/low valves in a new factory charged R4110 system while system is under vacuum?
I have never heard of that particular refrigerant, but I learned years ago to open the valves in a certain sequence as a basic check for restrictions.:grin2:

[ambarton]

yes. some manufacturers want you to do just that. open the suction valve to an evacuated lineset to boil off any liquid refrigerant in the compressor. york i think

[openclasspro]

Yes you can although i weigh in any additional needed refrigerant 1st then open the valve
How do you know how much to add?do you always take it that the amount on the tag is actually what's in the unit?

[ambarton]

How do you know how much to add?do you always take it that the amount on the tag is actually what's in the unit?
Did you not get the memo? All u gotta do is grab that big line there see and when she gets really good and cold well thats about right!:grin2:

[openclasspro]

Beer can cold ambarton?

[ambarton]

Beer can cold ambarton?

I never get tired of hearing that one. LOL

[ambarton]

See there Mr. Homeowner, go ahead and feel that big line there. I got her really good and cold now. Did you say you had cash?