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BMW & ASE Master Certified
Join Date: Feb 2004
Location: Houston, Texas
Posts: 1,262
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Re: Help! A/C techs!
Quote:
there might be some differences in the guts of the switch, but if the evaporate is frozen due to a improper LPCO switch, your going to cause high side pressures to shoot up and blow out of the relief valve in the compressor.... its not 2 birds one stone with that switch. Its a switch that can be installed either on high or low side and opens or closes based on internal guts - open or close... if you had 384 psi, in this sensors case, in your low side, i'm sure your evaporator would pop and fail as its normal operating pressures are around 120ºf just stting out in the sun baking (ambient temp) and lows of about 28ºf https://www.aircomponents.com/produc...witch-f-r134a/ specs for that sensor Female R134a 1/4 FF binary high-low pressure switch low opens at 28 PSIG closes at 29 PSIG high opens at 384 PSIG closes at 298 PSIG high side switch should defiantly be installed on the high side line to prevent the head pressure from getting too much and letting the relief valve in the compressor let the refrigerant out. clint
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1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes 1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD A poor man buy's it twice finally got my domain name back, 87chevy.com.... site rework in progress Last edited by 87chevy.com; 08-22-2022 at 07:16 PM. |
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