high suction/low head pressure/2/1 compression ratio

[grodan1]

just replaced condensing unit with suction line filter.At service valves head pressure 180,suction pressure 90.Air-flow in evap coil fine in and out.In 78 out 74,outside ambient 85.Humidity 50%.Superheat almost non-existent.Suction line at outside unit very cold to touch and sweating profusely.Fixed oriface metering device.New house construction.Last outside unit lasted one month and had a severe burn-out.Fosgene gas in the extreme while replacing.Double checked my gauges and ok.Is this a metering device issue-oversized?-or could it be an inproperly charged issue?I'm new and I can't figure why I have such a low temp split along with abnormal low/high pressure readings.No temp diff across suction filter.

[Dad]

http://www.hvac-talk.com/vbb/showthr...1&pagenumber=3

scale on second post

[beenthere]

Are you putting in the same brand and size condenser as you removed.

Pump the unit down and check the piston, to see if it is the right size.

[Dad]

Are you still doing paper work?

[airworx]

0 degrees superheat, high suction, low head. looks like
oversized orfice or oversized coil with overcharge. next time give us subcooling.
remember subcooling superheat and pressures = correct answere.

[Freezeking2000]

maybe no orfice

[beenthere]

Originally posted by lusker
Are you still doing paper work?

I took a break, got some to do today.

Thinking about going to camden, to the aquarium.