ICE-COLD-HVAC
27-05-2010, 02:01 AM
Hey everyone!
I need some advise on proper charge.
The system is a (2)two ton r-22 central unit air, located in Florida, the outdoor temp depending when i charge it is around 85-90-95 degrees.
I have the system as we speak charged at 75 psig low side. Many people tell me that low side is a bit to high, and that i should lower the low side to read around 60 to 65 psig with the outdoor temps above.
Is this accurate?
The system as we speaks cool perfect, but they state I could be putting the compressor to work harder at 75 psig. And they also state that if i lower it to 60 to 65 psig i can get the plenum temp much much colder than what it currently cools.
The current plenum temp with an outdoor temp of 85-90 degrees is 57 degrees output.
Should i drop my suction to 60 - 65 psig??? or leave it at 75 psig???
If i can get the air out the plenum much colder it would be great, please advise.
I'm affraid to lower the suction below 75 psig, thinking the system might start to freeze up.
The system is new with NO leaks!
Thanks in advance everyone!:)
I need some advise on proper charge.
The system is a (2)two ton r-22 central unit air, located in Florida, the outdoor temp depending when i charge it is around 85-90-95 degrees.
I have the system as we speak charged at 75 psig low side. Many people tell me that low side is a bit to high, and that i should lower the low side to read around 60 to 65 psig with the outdoor temps above.
Is this accurate?
The system as we speaks cool perfect, but they state I could be putting the compressor to work harder at 75 psig. And they also state that if i lower it to 60 to 65 psig i can get the plenum temp much much colder than what it currently cools.
The current plenum temp with an outdoor temp of 85-90 degrees is 57 degrees output.
Should i drop my suction to 60 - 65 psig??? or leave it at 75 psig???
If i can get the air out the plenum much colder it would be great, please advise.
I'm affraid to lower the suction below 75 psig, thinking the system might start to freeze up.
The system is new with NO leaks!
Thanks in advance everyone!:)