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Worrped
29-08-2010, 12:53 AM
I was wondering if their is anyway to charge a system after an install in a house that is now upper 90degrees, We have been in the attic putting in new system so all the heat is pulled down into the house. My real question is I don't want to have to return another day to recharge the system after it has cooled down. Can I charge it properly in 90 degree house temps? Thanks

icecube51
29-08-2010, 07:20 AM
it is difficult, but it can be done. just make sure the calculations are wright.

Ice

Peter_1
29-08-2010, 08:07 AM
Isn't there a nameplate with the weight?
I see a lot more problems when charging in winter where one tries to fill till its HP is high enough.
Is he unit capillary fed , TEV or EEV?
Fill till you have 10 K to 15 K superheat once the houses cools down to its normal summer setpoint.

NoNickName
29-08-2010, 10:48 AM
Yeah. More problems in getting the high pressure high in winter.
I don't see a problem in charging in a 90F environment.

tonyelian
29-08-2010, 10:55 AM
hi
u can charge it with ampermeter &gauges until the desired temperature

Peter_1
29-08-2010, 12:43 PM
Charging with AMP meter is a very bad practice.
Where will you get the correct AMP's?

NoNickName
29-08-2010, 12:46 PM
hi
u can charge it with ampermeter
:rolleyes::eek:

tonyelian
29-08-2010, 08:07 PM
hi peter 1
when the room reaches the desired temperature its not ideal but there is a limit we cant go beyond of course when its hot it pulls more amp&when its cold it pulls less any way most of ac have a plate &the weight of gas on it
i did not say thats ideal but it helps to be near the right way to do the job when there is lack of information

nike123
29-08-2010, 10:35 PM
http://www.refrigeration-engineer.com/forums/showthread.php?t=13311