Volvo Air Conditioning
-
Bigblue
- Posts: 46
- Joined: 25 September 2011
- Year and Model: 2001 XC70, 1991 740
- Location: Long Island, NY
Re: Volvo Air Conditioning
I have never replaced the evaporator in an S60 (they didn't make cross-flow 'way back when I was in the business) but in the diagrams the S60 evaporator looks to be vertical, not cross-flow...The man said the debris was non-metallic...
-
MoVolvos
- Posts: 5273
- Joined: 15 January 2012
- Year and Model: S&V70XC,S60,C30,XC90
- Location: NC
- Has thanked: 310 times
- Been thanked: 524 times
-
The filter dryer is suppose to pick up particulates and if the system has enough debris to clog an orifice tube and the Condenser is PF then it needs to be changed, They should flush the system with the PF Condensor out as the system needs to flow through one path in order for it to fully clear the system. Show you how often I work on AC systems of any kind, This is the first time I've heard of PF Condenser but the theory does not change including cleaning the system after the PF Cond has been removed.
One note BigBlue, jimmy was referring to the Condenser not the Evap but if there are PF Evaps then that is going to be interesting or more work cleaning out the system with both Cond and Evap removed from the system/
Blessings,
BKM
-
The filter dryer is suppose to pick up particulates and if the system has enough debris to clog an orifice tube and the Condenser is PF then it needs to be changed, They should flush the system with the PF Condensor out as the system needs to flow through one path in order for it to fully clear the system. Show you how often I work on AC systems of any kind, This is the first time I've heard of PF Condenser but the theory does not change including cleaning the system after the PF Cond has been removed.
One note BigBlue, jimmy was referring to the Condenser not the Evap but if there are PF Evaps then that is going to be interesting or more work cleaning out the system with both Cond and Evap removed from the system/
Blessings,
BKM
-
Blessings,
BKM
2008 C30 T5 2.0 M66
2007 S60 2.5T - New Project
2003 S80 T6 Transmission DIED
2000 S70 SE Base - New Project
1998 S70 T5 Prior
1989 240 Wagon Prior
BKM
2008 C30 T5 2.0 M66
2007 S60 2.5T - New Project
2003 S80 T6 Transmission DIED
2000 S70 SE Base - New Project
1998 S70 T5 Prior
1989 240 Wagon Prior
-
jimmy57
- Posts: 6694
- Joined: 12 November 2010
- Year and Model: 2004 V70R GT, et al
- Location: Ponder Texas
- Has thanked: 4 times
- Been thanked: 320 times
Parallel flow evaporators have been around a long time. GM was using them in the 60's and and that type pretty much rules, again for efficiency.
The receiver driers I have cut apart are always a simple can with a bag with the dessicant in it. The bag may be large enough that it acts as a filter somewhat but the presence of a mesh screen is rare in my car part autopsies.
Orifice tube system accumulator placement lets failed compressor debris go into condenser first and then onto orifice. Receiver/drier TXV stands a better chance of catching the debris after the condenser but the first stop after compressor is still the condenser.
On cars built in the last 15 years the incidence of parallel flow condenser or even parallel flow pressure drop condenser is so high that you can figure to replace condenser if compressor dies. Until that time it was very rare to replace a condenser for other than physical damage. You ran flush solvent through them and buttoned it up and charged and away it went cooling as should.
The receiver driers I have cut apart are always a simple can with a bag with the dessicant in it. The bag may be large enough that it acts as a filter somewhat but the presence of a mesh screen is rare in my car part autopsies.
Orifice tube system accumulator placement lets failed compressor debris go into condenser first and then onto orifice. Receiver/drier TXV stands a better chance of catching the debris after the condenser but the first stop after compressor is still the condenser.
On cars built in the last 15 years the incidence of parallel flow condenser or even parallel flow pressure drop condenser is so high that you can figure to replace condenser if compressor dies. Until that time it was very rare to replace a condenser for other than physical damage. You ran flush solvent through them and buttoned it up and charged and away it went cooling as should.
picked this car up.. barn find, was sitting for year. drove a few days then noticed smoke under hood. clutch on ac was red hot.. turned air cond off. drove next day with no air... does the cluth need replaced or can i do something to keep it from heating up and getting red hot?? dont want to burn up a belt.. mick in ohio