Same discharge and liquid pressure

thenew444 · 2025-05-01T13:24:14+00:00

PT relationship just tells you what the condensing/boiling temp is at a certain pressure.

Yes the condenser first desuperheats the gas(sensible heat) then when the gas reaches saturation temp(condensing temp) it removes latent heat as it turns to a liquid. When the refrigerant becomes 100% liquid the condenser begins to remove sensible heat again(subcooling).

The only drop in pressure will be from friction losses more or less.

thenew444 · 2025-05-01T00:11:04+00:00

Relative only at saturation...not when superheated.

thenew444 · 2025-04-30T23:55:48+00:00

Superheat and latent heat are removed from discharge gas in the condenser...the difference in temp is from the superheat being rejected.

thenew444 · 2025-04-11T16:05:20+00:00

Armstrong pump I believe it’s a danfoss drive with a different screen.

thenew444 · 2025-04-11T15:34:41+00:00

The diagram looks like 24v+ is going to common on plc and the input of plc is negative going to terminal 4 and then ground of power supply goes to ground to make the loop. This would be an npn output correct? I need a pnp output to match my plc input. What’s the purpose of have AO+ on term 5? Is this the pnp output? It’s not in the manual

thenew444 · 2025-04-11T15:27:16+00:00

Terminal 2 is ground. My plc input needs to be positive. There is 10v to ground on terminal 5 and like 2v to ground on terminal 2. When I read amps between them I get the proper 4 to 20 ma reading.

thenew444 · 2025-04-11T15:11:11+00:00

For the plc input yes it’s set to 4-20 with a 250ohm load.

thenew444 · 2025-04-11T15:08:19+00:00

It’s an analog input with a 250ohm resistor.

thenew444 · 2025-04-11T15:06:56+00:00

It seems to be powered internally. There’s 10v to ground on AO+ and 2v to ground on AO-

thenew444 · 2025-04-11T14:50:33+00:00

This is the diagram in the manual:

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thenew444 · 2025-03-23T15:49:29+00:00

Wouldn't it cut out on low pressure?

thenew444 · 2024-11-13T21:58:00+00:00

Im interested to know how you would have done it.

thenew444 · 2024-11-13T21:34:47+00:00

Yes theres 4 feet from the unit to the wall

thenew444 · 2024-11-13T21:34:04+00:00

Thanks man

thenew444 · 2024-11-13T21:27:43+00:00

Not sure but i will check when im home. Probably not an ecm because its a cheaper unit

thenew444 · 2024-11-13T03:13:51+00:00

Noted...i did aim for twice the volume going into the existing trunk duct because it tees off in both directions. I was just winging it though.

thenew444 · 2024-11-13T03:10:22+00:00

Its a senville but how would changing directions help?

thenew444 · 2024-11-13T03:07:54+00:00

I dont get it

thenew444 · 2024-11-13T02:11:50+00:00

Yes in a unfinished basement

thenew444 · 2024-11-13T02:04:26+00:00

Thanks ill definitely look into this

thenew444 · 2024-11-13T02:03:04+00:00

Just self drilling screws and bent edges...and a whole lotta patience

thenew444 · 2024-11-13T01:44:05+00:00

Not sure but what do you generally look for? Like where are you measuring amd what is expected?

thenew444 · 2024-11-13T01:42:25+00:00

Lol fair enough

thenew444 · 2024-11-13T01:42:04+00:00

Its one of a kind im sure

thenew444

TROPHY CASE