I need some advice on adding freon to a dehumnidifier. Which side should I add it to, the low side or the high side? How do I tell one side from the other? Can I use 134a like I put in my car's airconditioner?
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Re: Can you add 134a freon to a Dehumidifier?
Why do you want to put gas into your dehumidifier????????. this only needs to be done if there has been a leak and in that case you need to cure the leak first. you should use a vac pump as well to clear the charging line of gas. ideally, you should degas the appliance first and charge with the correct amount of gas.. the type of gas you need should be on the rating plate and is not necessarily r134a. gas goes in on the low pressure side and for this you can use either the charging stub (piece of pipe which is blanked off) or the low pressure pipe which is the larger diameter pipe of the other two. any refrigeration needs the correct amount of the correct gas.
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Looks like low Freon. Not enough info. Cheap answer: Walmart has 134A Freon with a dye in it plus a special flash light. Make sure you hook up to the low side to add the Freon/dye. Suggest you do this at night for better visibility. I think it's a very slow leak as it starts out cold first. Fix the leak, don't just add Freon as it will just reoccur. .
Adding freon to a car requires connecting the low-side service valve first, followed by the high side, recovering the existing freon, evacuating the system of air and recharging the system with new freon. You can use R-134a refrigerant for 1998 Ford Explorer. You can get all parts necessary for Ford Explorer at one place at http://www.carpartswarehouse.com/carparts/Ford/A-C_Condenser.html
The system could be low on refrigerant. The A/C pressure switch will not let the compressor run if the system pressure is below 28psi or above 455psi to protect the compressor from damage. At low pressures not enough oil (mixed in with the refrigerant) will circulate, and at high pressures, the compressor seals will likely blow. You can get a set of A/C manifold gauges for R-134a and check the system pressures yourself or get a shop to check it and possibly add some R-134a. If the system pressure checks good, then the A/C pressure switch, the compressor clutch, or some relays will need to be checked.
Get an r134a refrigerant add kit from Walmart or your local auto parts store.
You can even get a can of Arctic Freeze by Intermatics that has a hose and a gauge on it.
Connect the hose to the low side port. You can find this port on the 'thicker' piping that comes off of the compressor (versus the thinner piping that comes off the compressor which is the high pressure side).
Pressure should read 25 psi to 45 psi on the low pressure side when the compressor is running and the a/c is on.
Pressure should read 75 psi to 100 psi on a hot day when the car is off.
However, you'll want the a/c to be running when you add freon.
Press the button on the can to install more freon, if needed.
What I would try first is recharge the a/s system, your car came with R12 freon, that type of freon is impossible to get these days, so you will need a retro fit kit to convert it to 134A freon, the kit will have two 134a fittings that screw on to your R12 port, so that the 134a recharge hose will go on, the low side will be the one your add freon through, it will be the thinker hose of the two, the thin one is the high side stay away from that one, you will also need one can of freon (134a), if it works, it might work for a while till the freon leaks out again, then you will have to take it it for repair, but this way you know it's just a leak and every thing else works.Good luck, let me know if I can be of more help.
Adding freon will not correct the problem. If you need to add freon, you have a leak, and you have moisture in the system, the leak should be located, mositure removed, then freon added. But to answer your question. Open the hood on, the left side you will see a round object called a dryer, you will see two pipes coming from it, one at the top and one at the bottom. The smaller is the high side, the larger is the low side. Obtain a can of freon either R-22 or 134a with an adapter for installing the freon. Turn the engine on, turn the AC to high. Add the freon to the ac using the low side.
no that is the high side connection the low side should be between the compressor and the firewall thats where it will be sucked in, connect to the high side and the can of 134a can explode in your hand
#1 you will need r134a freon. #2 the low side service port is located right at the firewall where tha line goes to the evaporator. #3 if wou bought a can of 134a freon with a hose that will hook to it, it will work. all service fittings for 134a freon are the same even though the high side and the low side will always differ