Ask Experts Questions for FREE Help !
    jsn's Avatar
    jsn Posts: 1, Reputation: 1
    New Member

    Jun 5, 2007, 09:51 AM
    Installing a expansion valve
    I have a cental a/c in my home it is a york 3ton. The freon is controlled by an orfice. I was told that an expansion valve is much better. The reason for the change the system will not cool like I think it should. Even when it was new it did not work that well. I have a 1280sf raised ranch. I can only bring the house down to 77degrees. Any help would be appreciated:(
    JackT's Avatar
    JackT Posts: 260, Reputation: 19
    Full Member

    Jun 5, 2007, 01:09 PM
    There's no reason that the orifice shouldn't cool down your house as long as it's the correct size and isn't obstructed with something. If your system was designed properly and the condensing unit, coil and blower all match, and you have the correct charge, the expansion valve won't help. Is this a new system? Has it ever cooled down the house? There are many possible causes, - low refrigerant, dirty condenser coil, compressor going bad, restriction in the system, and the blower could be running to fast. If you can provide a little more back ground information, it may help us.

Not your question? Ask your question View similar questions


Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.

Check out some similar questions!

Thermal Expansion Valve replacement [ 19 Answers ]

I have a 2 1/2 ton Rheem heat pump and I need to know if the Thermal expansion valve can be disassembled or do you have to unsolder and replace the whole unit? The model # on the A coil is RCOB-C0305 serial number is M3292. It appears to me that the round portion that the bulb sensor goes into will...

Installing a signal wire for a heat pump change over valve [ 2 Answers ]

My wife and I just bought a house and I was thrilled when I saw that the outside unit was a heat pump (a Goodman ck36-1b model, to be exact). Well, today was the first day that we were to run the heat, and I noticed that the furnace kicked on immediately. "Strange," I thought, "doesn't the...

Gas valve noise on main valve engagement [ 1 Answers ]

I have a carrier 58gs100ga furnace with a white rodgers 36e93 gas valve. The main gas valve solenoid chatters or rattles for a split second before it stays engaged after the pilot is proved. I just replace the spark/lock out board and the fan board for a different problem. This chatter is...

Installing a pressure balancing valve [ 1 Answers ]

I have a question regarding the installation of a 35.253.000 Grohsafe-enhanced flow pressure balancing valve. What it the recommended way of installing the valve to the 1/2" copper supply pipes? The shut off valves on the sides are 1/2-14NPT male X 1/2" copper sweat. Should I use brass drop ears on...

View more questions Search