ReplyI'd be thinking that's not possible.
Global Moderator
is it possible for them to have suction but no discharge ?
Professional Member*
I'd be thinking that's not possible.
I'm not tolerating Political Correctness anymore, from now on it's tell it like it is.
Veto Pro Pak - The best tool bag you'll ever own
Professional Member
I think.
If there is a Black Hole located between the compressor and the discharge service valve
Global Moderator
What about the internal bypass ?
Professional Member*
I think I know who stole my wife's "she who must be obeyed" Purse!!Originally Posted by Phase Loss
I think.
If there is a Black Hole located between the compressor and the discharge service valve
VTP99 GUILTY
Professional Member*
If the relief valve is passing 100%, then any changes will occur within the compressor body, even though there still maybe compression at the scroll, If you are getting gas movement from the suction side external of the body, you must be getting gas flow through the discharge side external to the body, when running.What about the internal bypass ?
Global Moderator
Good point. I like your thinking. Now what if I said digital scroll with unloading ? Same answer right ?
Professional Member*
When a digital scroll unloads, compression itself basically stops (with the relief valve compression still could be occurring), but you still have a pressure difference within the system. So flow will still continue even when unloaded for a short period.
Global Moderator
I do believe on unloading, the upper scroll lifts upward stopping all pumping action.
Educational Committee/Professional Member*
Here's some info. http://www.hvacrinfo.com/cope_ae_bulletins/TAE1328.PDF
I love the smell of phosgene first thing in the morning:
To apply for professional membership click here
Educational forums are open.
If you would like to submit a link or an article or other related info to the EF. click here
Professional Member*
Thanks for that file cracker, I don't believe I've worked on a digital scroll before.
I'm not tolerating Political Correctness anymore, from now on it's tell it like it is.
Veto Pro Pak - The best tool bag you'll ever own
Educational Committee/Professional Member*
Your welcome.
I love the smell of phosgene first thing in the morning:
To apply for professional membership click here
Educational forums are open.
If you would like to submit a link or an article or other related info to the EF. click here
Professional Member
When you say no discharge. Do you mean 0#?is it possible for them to have suction but no discharge ?
or discharge is equal to suction?
Global Moderator
Pump pulls right down into a vacuum. The discharge starts at 100 psi and does not move. Which was about what my ambient temperature was for R22. In my other thread one poster says if there is something going in then something must be going out. I'm going back tomorrow with a new TXV and hoping I can get by with just changing out the power element.
Professional Member
that does sound like whats happening, a pump down.
That power element should be a good start.
Global Moderator
Yes that control is what works the solenoid. The solenoid allows gas into the compressor top which through some ports lifts the upper scroll. This allows gas to bypass between the two scrolls at the bottom.
Professional Member
Is your scroll a digital scroll?
It still sounds like it's pumping down. If it was unloaded, it wouldn't pull into a vacuum. Like you said, no compression would take place due to the separated scrolls.
Professional Member
plugged filter drier or condenser also something to look for. I've had em plug up completely and the systems are exactly what your describing
Posting Permissions
