[Editor] The R134 conversion debate appears to be in excess of and it is actually greatly approved as an alternative choice to R12. A lot of other refrigerants are also accredited because of the EPA as owning achieved security and environmental requirements. Sad to say, the EPA would not take a look at these choice refrigerants for compatibility with refrigerant oils, elastomers, and other components in your car's cooling procedure.<br><br>[Suggestion from Larry Carley, Underhood Provider, April 1999] For most scenarios and for most automobiles, a primary R134 retrofit procedure is all of that's needed to retrofit an air con system. By fundamental, we signify recovering any residual R-12 that may still be during the system, draining out the outdated mineral oil, changing the accumulator or receiver/dryer, and afterwards evacuating the technique to purge air and dampness, introducing the desired quantity of POE oil for the compressor and recharging the system to 85 to ninety p.c of its initial capacity with R-134a. It is important to keep in mind that R-134a or almost every other alternative refrigerant can't be mixed with R-twelve or utilized to top off an R-twelve process. If an A/C program even now is made up of any R-twelve in the least, it has to be removed making use of accepted Restoration equipment (venting is just not permitted) before a fresh refrigerant is additional for the technique. This can be an complete should to forestall cross-contamination of refrigerants and cooling general performance challenges. R-134a and mineral oil will not combine. Therefore if any individual recharges an R-twelve program with R-134a and would not insert a suitable ester POE lubricant, the compressor will soon fail.  Volvo was the first vehicle maker to approve POE oil (P/N 1161442-seven) for R-134a retrofits.<br><br>The Volvo guide suggests This is a gas financial system issue whereby the a/c compressor cuts off through acceleration, but this should happen only at vast-open up throttle.<br><br>When You begin the engine, suction within the compressor will suck a 3rd can. That is certainly 36 ounces as opposed to the 32 ounces called to the A/C around the 960. That actually works for me, but I don't forget Tom Irwin recommends a small foodstuff scale To place in just 32 ounces of R134. For those who have to alter the condenser, I found the immediate suit aftermarket one particular from FCPGroton has the advantage above the condenser that was in the vehicle (Volvo?) of no steel plates in opposition to the aluminum. Otherwise, that aftermarket condenser is a tad shorter major to base compared to the one which was in the car, with round as an alternative to flat tubing. I are not able to Evaluate ability (BTU) between the two condensers, but up to now that aftermarket device provides me 32-34 levels Farenheit air in the vents in the tropics!  Practical Air Conditioning Components, Products and solutions and Tools. AScanTech (Avantia) direct suit aftermarket condenser is $one hundred seventy five from fcpgroton as well as a Volvo one particular is $439 from Swedish Engineering. A completely new (not remanufactured) Sanden SD7H15 compressor is $320 from FCPGroton. Locally, I used to be quoted $995 (Certainly, $995) sight unseen so I don't know irrespective of whether it had been new or remanufactured. An accumulator will set you back $50 from FCPGroton and maybe two or three pounds a lot more from Swedish Engineering. A Mastercool flush gun is $forty three and flushing solvent is $twenty a bottle from  You will want store air to implement These. The Airsept kit with "Compressor Guard" screens to keep debris in the method from getting into your new compressor expenses $67 from . For leak detection, get an Airmax LED penlight for UV leak detection from (fees about $forty) along with a list of UV-improving Eyeglasses from JC Whitney for about $5. You can purchase air conditioning dye injectors from NAPA. The glasses are essential to begin to see the dye. To seal pipe joints with o-rings, get some Nylog, which is appropriate With all the o-ring substance and stops corrosion.<br><br>Panel Vent Stops Operating Upon Acceleration.  Normal Notes. [Inquiry:] My friend has a '94 960 plus the air stops blowing through the vents while the vehicle is accelerating (the a/c fan remains to be spinning but no air is popping out) when ever the vehicle reaches a gentle speed it starts off blowing all over again. Precisely the same point transpired to me within an 'ninety 760t and it turned out for being a gap while in the vacuum line that goes into the vacuum reservoir. On the other hand I can not Find the reservoir With this car or truck. Does everyone have any Thoughts?  All: Common Diagnostics. This is often a result of a vacuum leak, no matter if or not it's an interior hose or servo motor, within the motor compartment, or on the vacuum reservoir. Discover the vacuum line that goes to your vent diaphragm (vacuum bellows) under the sprint powering the steering wheel.<br><br>The 940 motor vehicle units with "A/C Off" or "Snow Flake" A/C buttons are virtually exactly the same aside from the various button and distinct coloration wiring in the panel into the PCB board.<br><br>I stress examined my core just before pulling it and it held force! So I sanded/cleaned the nipples and reinstalled hoses, which sealed the next time and my leak/trouble was cured.<br><br>ECC Local weather Device Not Running. The ECC climate Management device in 960/90 cars and trucks can put up with precisely the same solder board cracks given that the MCC unit higher than. Indications integrated irregular compressor operation. Moreover, the solenoid valve controller, mounted beneath the sprint while in the passenger footwell just once the evaporator, can also have these cracks. Indications include things like each irregular compressor Procedure and vent doors closing at random, not correlated with acceleration.<br><br>Occasionally this happens together with a motor failure when an overcurrent from the motor leads to the resistors to also fail.    Typical: Resistor Pack Failure<br><br>I discovered which the hoses leaked with the Verify valves and using the small worm push hose clamps took treatment with the leaks. Before that the panel vents would snap shut when you depressed the gas pedal  Application of Vacuum to Drinking water Control Valve. <a href="http://All4Webs.com/t/f/madmoi14evblog">dig this</a>