What are the two main pressures in the AC system?
The typical vapor compression refrigeration system (as shown in Figure 1) can be divided into two pressures. They are condensing and evaporating – or high- and low-side – pressures. These pressures are divided or separated in the system by the compressor’s discharge valve and the metering device.
What to know when charging Honda AC system?
The important things to keep in mind while charging the AC system, are the use of safety goggles, gloves, using the correct refrigerant (R134A), and upon completion, confirming the correct pressure in the system line.
Where is the AC system on a Honda Accord?
Review the manufacturer’s specifications and operating manual for your Honda Accord. It will help you locate the AC system under the hood, specifically the low pressure valve for the AC system, and to confirm the optimal AC system pressure recommended for your vehicle. Figure 1. Review information on AC System in your Owner’s Manual.
What should the PSI be on Honda Accord air conditioner?
A normal reading should be between 50 and 80 PSI. If the reading is out of this range, have a mechanic investigate further, as there may be a leak in the system. The low-side port is between the evaporator, which is inside the vehicle, and the compressor, which is in the engine compartment.
What kind of air conditioning does a 1990 Honda Accord use?
The 1990 Honda Accord may use Freon R12, which is hard to come by and no longer in production. If your Accord doesn’t use Freon R134a, you should consult a mechanic who can convert and recharge your air conditioning system for you.
What should my AC pressure gauge reading be?
This is the second part of a series on AC pressure gauge readings. If you missed part I, start here. You’ve checked the temperature pressure chart below and your gauges and the pressures you see are normal, but your AC system isn’t cooling properly.
What does a manifold gauge on an AC mean?
A manifold gauge set measures refrigerant pressures inside of an air conditioning system. An automotive air conditioner has a high and low side, divided by a metering device and the A/C compressor.
Why does my AC pressure gauge not equalize?
1) You haven’t waited long enough for the pressures to equalize, or 2) The orifice tube, expansion valve, compressor reed valves or stuck or there’s a severe restriction somewhere in the system that’s preventing the pressure from equalizing. In that case, you must fix that problem first. Troubleshooting incorrect static pressures
How much R134a to put in Honda Accord low side pressure?
Then you are assured that the correct amount of R134a is in the system. Ended up topping off the system a little. I estimates adding about 4 oz of pure R134 since the can felt about 1/3rd empty in the end.