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actually for the a/c have 2 units,one is the indoor unit and the other is the outdoor unit, and there will be a refrigerant gas flowing in between the two units (in the copper pipes) when the refrigerant comes to the indoor unit it comes with a cold format .and when the chilled refrigerant comes in the way of the hot air ,the refrigerant becomes hot and the air becomes cool. (there will be a blower inside the indoor unit to blow the air across the refrigerant pipe's and hot refrigerant now goes to the outdoor unit (i.e condenser), where the outside atmosphere air comes across the hot refrigerant so that the hot refrigerant becomes cool and the cold air becomes hot. so, the indoor unit is maintained in a cool temperature and the outside outdoor unit is maintained at a hotter temperature.
stress on the refrigerant lines
The battery has a charge unit instead of being itself a unit. A battery is not a unit. The unit for the electric charge is milliampere-hour.
pounds
The particle with one unit of positive charge is Proton. Answer Proton
The amount of refrigerant a unit contains depends on the size of the unit. That is the standard charge but the charge after the system is installed may be more or less. The system charge depends on the size of the refrigerant lines, the length of the lines, and the size of the unit.
What temperature should liquid line be on 134a refrigerant
condensable gases condensable gases
Unsure what you mean by the phrase "sealed unit?" It DOES have ports and connections to re-charge the refrigerant, if that's what you are asking.
A refrigerant compressor will be hot when running whether or not the charge is too high or too low. If the charge is too low, the compressor will cycle on and off. If too high the compressor may not run at all.
Most Sunfires have a 'valve' on the A/C unit that you use to fill the unit with refrigerant. I say valve because it looks like a valve, but really its more of a nozzle. All vehicles from the mid to late 90's and on are forced by law to use only R-134a refrigerant. How much refrigerant your cars unit holds can be determined by finding the refrigerant charge label under your hood. It should be located near or above your A/C unit. The easiest way to ensure no mistakes or damages to your unit is to get a professional A/C fill. But the cheapest way is to buy a can of refrigerant (you can find these at most auto stores and even Wal-Mart) and follow the instructions given in the box. It will show you step by step how to add the refrigerant to your unit.
the indoor unit will freeze when there is low air flow due to a dirty filter,dirty coil, fan not spinning, or the a/c unit could be low on refrigerant charge.
There are EPA guidelines that must be followed whenever you deal with refrigerant. If you are not EPA certified, you should not be dealing with checking the charge of your unit. Having said that, here is the answer to your question The hose colors are typically: Blue for suction(low side) Red for liquid(high side) Yellow for refrigerant tank
No, refrigerant never wheres out. It should last forever. If you need a boast it is because the unit lost its charge through a leak.
actually for the a/c have 2 units,one is the indoor unit and the other is the outdoor unit, and there will be a refrigerant gas flowing in between the two units (in the copper pipes) when the refrigerant comes to the indoor unit it comes with a cold format .and when the chilled refrigerant comes in the way of the hot air ,the refrigerant becomes hot and the air becomes cool. (there will be a blower inside the indoor unit to blow the air across the refrigerant pipe's and hot refrigerant now goes to the outdoor unit (i.e condenser), where the outside atmosphere air comes across the hot refrigerant so that the hot refrigerant becomes cool and the cold air becomes hot. so, the indoor unit is maintained in a cool temperature and the outside outdoor unit is maintained at a hotter temperature.
Is it a new or an old window unit? Assuming your looking to refill it I will assume it is an old window unit which most likely uses R-22 refrigerant. R-22 is an ozone depleting refrigerant that is being phased out but should be available until 2010. There should be a label on the window unit stating which refrigerant is used.
I have a 99 durango and the amount of refrigerant needed for the single unit and double unit are listed under the hood on top of the radiator.