What does the AC orifice tube do?
Orifice tubes for car air conditioning system The orifice tube is a tube with a given length and cross-section which expands the refrigerant but, unlike the expansion valve, it is unable to regulate flow rate and superheating. The orifice tube is always associated with an accumulator at the evaporator outlet.
How do you recharge a car air conditioner?
Recharge your AC in 7 easy steps:
- Materials Needed:
- Step 1: Turn on your AC.
- Step 2: Determine if AC compressor is engaging.
- Step 3: Test the pressure.
- Step 4: Attach the recharge hose from the kit.
- Step 5: Restart the vehicle and monitor the gauge.
- Step 6: Thread the refrigerant can onto the recharge hose.
Where is the orifice tube Peterbilt 379 located?
You can’t post conmments that contain an email address. it is located in the high pressure AC line at the AC evaporator core inlet. The high pressure line is the smaller of the two AC lines that come from the AC compressor on the engine.. You can’t post conmments that contain an email address.
Where is the orifice tube located in an auto?
The orifice tube may be located: In the inlet tube to the evaporator. Built into the high pressure liquid line. Inserted into the high pressure line near the condenser. The 5 different types of Auto AC orifice and expansion valves.
How do you remove the orifice tube in an evaporator?
Remove the orifice tube using needle nose pliers or removal tool. Note the orientation of the orifice tube. It must go back in the same way. Lubricate the O-rings on the new orifice tube with AC oil. Insert the new orifice tube into the evaporator or LLOT or SLOT.
What causes an orifice tube to fail in an AC system?
Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration. Replacing a plugged orifice tube without solving the root problem will result in another plugged orifice tube.