A/C Pro

How to recharge with a T-handle or Gauge-Handle style recharge hose?

Does your gauge handle look similar to one of these?

If so, you have a T-handle or gauge handle recharge hose. Follow these steps to recharge your car. Remember to always wear safety glasses and gloves when recharging your vehicle’s A/C.

1. Determine the ambient (outside) temperature before starting to charge your car. If the ambient temperature is 55°F or below do not charge the car. To determine the proper pressure of your car’s A/C, set the bezel on the pressure gauge to the outside temperature and then read the corresponding pressure setting on the gauge. If your gauge does not have a bezel dial with the corresponding temperature and pressure, consult the pressure temperature chart. After determining the proper pressure for your AC system charge to that pressure.

2. Locate the low side port. Important note: only charge your A/C system through the low side service port. Never use the high side port to add refrigerant. Doing so is dangerous and could cause you harm. If you are having trouble locating your low side port, try using our low port location finder by clicking here. If you still cannot find your low side port, locate the large diameter aluminum line coming from the back of your car’s compressor. The low side port will be located somewhere along that line between the compressor and the firewall. Still can’t find the low side port? Give our technical help desk a call at 1-888-318-5454.

3. Remove the sealing cap from the low side port and wipe any dust from the port with a clean rag. Attach the hose to the low side port. Tug gently on the hose to insure a snug connection. Note: The hose will only connect to the low side port fitting. If the hose does not easily attach you are trying to connect it to the wrong port.

4. Turn the handle clockwise until it will not turn anymore. This extends the piercing needle into the top of the can.

5. Turn the handle counter clockwise to start the product flowing. By turning the handle counterclockwise the piercing pin retracts from the top of the can allowing the product to escape. To check the pressure, close the valve by turning clockwise until it will not turn anymore. Remember turning the handle so that it travels up is “”open”” and turning it so that it travels down is “”closed””.

6. Keep the can in the upright position when dispensing product. Rotate the can between the 12 o’clock and 2 o’clock position when charging. It is important to stop every 30-45 seconds to take a pressure reading on the system to prevent overcharging the system.

7. When the A/C is charged to the proper pressure, close the valve on the top of the can and remove the charging hose from the low side port. Replace the sealing cap on the low side port. Store any remaining refrigerant in a cool dry spot in your garage.”