New and Used Car Talk Reviews Hot Cars Comparison Automotive Community

The Largest Car Forum in the Philippines

Page 2 of 2 FirstFirst 12
Results 11 to 20 of 20
  1. Join Date
    Feb 2009
    Posts
    5,130
    #11
    Quote Originally Posted by RAC Tech View Post
    charge with refrigerant R-134a that's it, pareho lang ng standing pressure r12/r134a. cost 1000 pesos....


    nothing personal. professionally, you should go to a reputable school to get trained

  2. Join Date
    Aug 2008
    Posts
    65
    #12
    Quote Originally Posted by RAC Tech View Post
    charge with refrigerant R-134a that's it, pareho lang ng standing pressure r12/r134a. cost 1000 pesos....
    Quote Originally Posted by jick.cejoco View Post
    nothing personal. professionally, you should go to a reputable school to get trained
    Yup!! +1000 ako dito. Kaya dito sa Pinas pag-dating sa A/C lalo na sa automotive airconditioning, sandamakmak ang palpak dahil sa mga ganitong klaseng technician kuno.

  3. Join Date
    May 2010
    Posts
    18
    #13
    As of now hindi ko pa sya na ipaconvert sa 134, dinala ko na din sa isang aircon shop lapit dito samin, kailangan daw i flush yung system, then new drier & expansion valve. palitan din ng compressor that's 134 refrigerant compatible. wala sya sinabi re o-ring replacement. Nagtanong din ako sa Banawe, replace drier and flushing lang daw eh pwede na lagyan ng 134 ung system, parang may mali so di na ko nagbalik doon.
    by the way before ako mag post dito, bagong flush ung aircon system, pati drier, expansion valve, bago din cooling coil ko kasi nabutas ung dati. Malamig ung aircon pag umaandar sa highway pati sa gabi at pag malamig panahon, pero pag natraffic sa edsa ng mga 11am to 3pm na mainit panahon nawawala ng malaki ung lamig. naglagay na ako ng isang aux fan sa harap, halos ganun din, konti lang improvement. compressor n kaya sira nito, sabi kc ng a/c tech ok daw ung freon at compressor.

  4. Join Date
    Jul 2003
    Posts
    2,267
    #14
    Quote Originally Posted by gorionikoy View Post
    hindi marami hindi sobra..ang technician na nakakaalm..
    ayos! napaka scientific ng explanation.

  5. Join Date
    Feb 2009
    Posts
    5,130
    #15
    Quote Originally Posted by amateur37 View Post
    As of now hindi ko pa sya na ipaconvert sa 134, dinala ko na din sa isang aircon shop lapit dito samin, kailangan daw i flush yung system, then new drier & expansion valve. palitan din ng compressor that's 134 refrigerant compatible. wala sya sinabi re o-ring replacement. Nagtanong din ako sa Banawe, replace drier and flushing lang daw eh pwede na lagyan ng 134 ung system, parang may mali so di na ko nagbalik doon.
    by the way before ako mag post dito, bagong flush ung aircon system, pati drier, expansion valve, bago din cooling coil ko kasi nabutas ung dati. Malamig ung aircon pag umaandar sa highway pati sa gabi at pag malamig panahon, pero pag natraffic sa edsa ng mga 11am to 3pm na mainit panahon nawawala ng malaki ung lamig. naglagay na ako ng isang aux fan sa harap, halos ganun din, konti lang improvement. compressor n kaya sira nito, sabi kc ng a/c tech ok daw ung freon at compressor.

    for optimum performance of your a/c system, use an expansion valve designed for R134a, HBNR o-rings (to prevent leaks), X-7 receiver dryer, PAG 150 ISO lubricant, and maintain an average pressure on the low side at around 27 PSI (32 PSI for R12) when the system has stabilized, at Philippine average ambient temperatures of 80 degrees fahrenheit, your high side pressure should be around 160-190 PSI with a fan blowing into the condenser simulating ram air

  6. Join Date
    Oct 2002
    Posts
    25
    #16
    Quote Originally Posted by RAC Tech View Post
    charge with refrigerant R-134a that's it, pareho lang ng standing pressure r12/r134a. cost 1000 pesos....

    nasubukan nyo na po ba gawin ganitong refrigerant mixing sir ? if not sir pls don't recommend such procedure.. deadly and hazardous po kc. mixing R12 and 134a can or may give you a "big bang" sa a/c cooling system.

    naka pagtry na po ako (w/ my old Lancer GLXi 91) convert from R12 to 134a. flush the system,replace drier, TXV and did not replace the condenser and compressor. The a/c tech did use oil for R12 for the compressor(dunno the brand of oil) and fill with 134a refrigerant. Same procedure was done last year when i had my a/c cleaned and flushed from another a/c shop. I'm still using OEM compressor and condenser, though I noticed that R12 cooling is somehow better than 134a but quite negligible.

  7. Join Date
    Apr 2008
    Posts
    35
    #17
    Quote Originally Posted by audio_hunter View Post
    nasubukan nyo na po ba gawin ganitong refrigerant mixing sir ? if not sir pls don't recommend such procedure.. deadly and hazardous po kc. mixing R12 and 134a can or may give you a "big bang" sa a/c cooling system.

    naka pagtry na po ako (w/ my old Lancer GLXi 91) convert from R12 to 134a. flush the system,replace drier, TXV and did not replace the condenser and compressor. The a/c tech did use oil for R12 for the compressor(dunno the brand of oil) and fill with 134a refrigerant. Same procedure was done last year when i had my a/c cleaned and flushed from another a/c shop. I'm still using OEM compressor and condenser, though I noticed that R12 cooling is somehow better than 134a but quite negligible.

    [SIZE=7]Pag ang kotse mo ay 1996 model di advisable gastusan ng malaki sa convertion ng refrigerant lamang, mahina na kasi ang value, baka mas mahal pa ang value ng aircon mo kaysa sa kotse. My nabibili namang r-12. 1997 model pataas r-134a na environmental friendly na lahat.. [/SIZE] bago maubos ang ozone layer wala na sigurong gumagamit ng r-12...

  8. Join Date
    Apr 2008
    Posts
    35
    #18
    [SIZE=1]sorry ang laki pala ng font[/SIZE]

  9. Join Date
    Oct 2002
    Posts
    25
    #19
    Quote Originally Posted by RAC Tech View Post
    [SIZE=7]Pag ang kotse mo ay 1996 model di advisable gastusan ng malaki sa convertion ng refrigerant lamang, mahina na kasi ang value, baka mas mahal pa ang value ng aircon mo kaysa sa kotse. My nabibili namang r-12. 1997 model pataas r-134a na environmental friendly na lahat.. [/SIZE] bago maubos ang ozone layer wala na sigurong gumagamit ng r-12...
    sir the question was... "What is the proper conversion from r12 to134 of 1996 LEC sentra aircon" ... what is the connection of your reply? costing ? etc etc? and from the posting manner pa lang "all caps" .... hmmmm

    Quote Originally Posted by RAC Tech View Post
    charge with refrigerant R-134a that's it, pareho lang ng standing pressure r12/r134a. cost 1000 pesos....
    also, it seems that you were trying to "mislead" the author of this thread regarding your advise?

  10. Join Date
    May 2008
    Posts
    4
    #20
    I just learned from the news today. Cars using R12 refrigerant will be phased out by year 2012 unless it undergoes Non-CFC aircon retrofitting.

    http://business.inquirer.net/money/f...-12-Freon-free

Page 2 of 2 FirstFirst 12
What's the proper conversion from r12 to 134 of 1996 sentra LEC aircon