At A Loss Here !

[RDP]

BTW, I am an installer that also does service.... And a Service Tech that Installs equipment. Sometimes I also sell equipment. What does that make me?

That would make you a service tech.

[iraqveteran]

BTW, I am an installer that also does service.... And a Service Tech that Installs equipment. Sometimes I also sell equipment. What does that make me?

That would make you a veteran of the trade. A good all around pro.

I am a service tech. I have done many installs. I have sold many systems. And I have also corrected our salesmen many times.

I work on HVAC (residential and commercial), Refrigeration systems, Commercial Food Equipment, and even a few chillers here and there. So what would that make me???

[oloenneker]

I know I know. I work in refrigeration. They are everywhere on refer units and Commercial systems.

But when it comes to the smaller residential heat pumps, Superheat and Subcooling readings will go a lot further than a sight glass. On these systems, a sight glass is nothing more than 2 more joints that could start leaking.

I agree, but there are a lot of old farts out there that rely on that sight glass to determine the proper charge. The sight glass also gives you an quick indication if you need to get the gauges on that system and sort stuff out, or things look about right. (Along with beer can cold, etc.)

[iraqveteran]

That would make you a service tech.

Dude, quit quotin him like Im quotin him....

Yer makin me luk badd hear!!!

[git-r-dun]

BTW, I am an installer that also does service.... And a Service Tech that Installs equipment. Sometimes I also sell equipment. What does that make me?[/QUOTE]

We can't use profanities

[iraqveteran]

I agree, but there are a lot of old farts out there that rely on that sight glass to determine the proper charge. The sight glass also gives you an quick indication if you need to get the gauges on that system and sort stuff out, or things look about right. (Along with beer can cold, etc.)

Do not take this the wrong way......but.......


Last time I checked, guages were required to pressure test, pump down, and charge the system.........so.............

Why wouldn't one leave the guages on during initial start-up?

[tinknocker service tech]

I changed out my condensing unit, (a very used Goodman 10 seer), with a Nordyne 13 seer, and, the evaporator coil on the horizontal natural gas furnace with a Aspen 13 seer expansion valve cased coil.

The condensor sits on the ground level and the ecoil is in the attic approx. 16 foot above the cond. unit. I relocated the line set to make an arc about a foot above the highest point of the ecoil case to stop off-cycle migration.

I installed a 16 cu.in LL filter dryer at the ecoil and a sight glass at the cond. unit.

Upon start up and charging system, in order to clear the glass it produced 95 psig suction with 275 head pressure with a very warm liquid line.

I adjusted the charge to 175 head pressure which only resulted in lowering the suction to 80/85 psig, while flooding the compressor very badly !

I adjusted the charge until the compressor was not flooded and the suction was in the 75/80 psig range but the suction line was not sweating back nor was the condensing cycle producing sufficiant removed heat out of the top of the cond. unit.

The ecoil is a universal refrigerant use coil and I did check the valve to make sure it was a R-22 valve and yes it is, (green tag).

My theory is that the sensing bulb has lost its charge, (coming this way out of the box), and the valve is stuck in the wide open position. I know of no way of proving this except to change the valve.

btw, I am a technician with over 15 years experience in new install and retrofitting equipment, and this is on my own home.......

Any suggestions or comments before I go to the parts store and request a "loaner" valve to prove my theory ?

Thankx in advance,

Ozonetrooper

not enough info
liquid temp
suction temp
inside db and wb temp
outside temp
td for system
tr on condenser
pressures

the site glass will tell you nothing and may even have bubbles when charge properly. It needs to be at the coil but still wont tell much

[RDP]

Dude, quit quotin him like Im quotin him....

Yer makin me luk badd hear!!!

What can I say I'm faster tonite.

[oloenneker]

That would make you a veteran of the trade. A good all around pro.

I am a service tech. I have done many installs. I have sold many systems. And I have also corrected our salesmen many times.

I work on HVAC (residential and commercial), Refrigeration systems, Commercial Food Equipment, and even a few chillers here and there. So what would that make me???

A lot like Oloenneker...

[iraqveteran]

A lot like Oloenneker...

Don't put me in his bracket......we are not in the same league

[iraqveteran]

What can I say I'm faster tonite.

I had to double quote it. It didn't work right the first time.....

you may be faster at typing on here....but I am tryin to reply to 2 posts at once.....along with 2 other sites.

[oloenneker]

Do not take this the wrong way......but.......


Last time I checked, guages were required to pressure test, pump down, and charge the system.........so.............

Why wouldn't one leave the guages on during initial start-up?

They are.

And they are. There was a time when Superheat / Subcooling where not taught to service techs. I know you have heard the sayin's...

But when you are doing PM's on a building with 58 5-ton split systems, it's a hell of a lot easier to feel the suction, and look at the sight glass... You'll know pretty fast if something is not right...

[git-r-dun]

I work on HVAC (residential and commercial), Refrigeration systems, Commercial Food Equipment, and even a few chillers here and there. So what would that make me???[/QUOTE]

A Jack of all HVAC trades and Master of none
No it's been the same here too.