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.
A desiccant-filled filter/dryer (dehydrator) is installed in the refrigerant liquid line to remove moisture. Otherwise water and the refrigerant can combine to form an acid which would be corrosive to the compressor, to the tubing and to the specialty fittings.
the ammonia compressor differs slighlty from the air compressor in the fact that one uses a piston to create airable pressure frence while the outher uses a weighted fan atached to a fly wheel,eather would blow well
Why would you want to? It is in the system for a reason, namely to turn the compressor on and off according to the schedule set by the thermostat. If you bypass it, you would be forcing the compressor to run when the rest of the system isn't, which sounds like a recipe for disaster.
Dirty condenser coil, high ambient temperature, problem with condenser fan, overcharge, non condensibles, high indoor load are the first places I would look. In that order.
Pressure pulsations
Can't do it. The lubricant is mixed in with the refrigerant. Converted to air it would be running dry.
low pressure side of a/c compressor (larger hose)
When you are replacing a compressor. Chances are that the compressor's internal motor had a burnout when this happens the there is a chemical reaction that makes everything very acidic this in-turn contaminates the refrigerant as well. The old refrigerant would be reclaimed and sent to a a reclamation center where it would be incinerated under the guidelines by the Dept of EPA .
Possibly the pressure cycling switch.
The compressor will "cycle" on and off if the refrigerant level is getting low. There is a sensor that detects the pressure of the refrigerant on the "low" side. If there is enough pressure, the compressor can turn on. When the compressor pulls some of the refrigerant and compresses it to the "high" side, there will be less refrigerant for the low side, which causes the sensor to turn the compressor off again, then the refrigerant migrates back to the low side and the compressor can cycle back on. Once the refrigerant level gets so low that the sensor won't allow it to turn on, you're done. You need to find the leak, repair it and recharge the system. Most AC systems that leak that fast have a worn seal and/or main shaft bearing in the compressor. You can't really repair a compressor so if that's your problem, just plan on getting a new one. Look at the compressor, around the pulley. If you see oil, that's your leak.
Usually the shaft seal is installed from inside the compressor housing and is not serviceable. You would need to replace the compressor.
Indicates low refrigerant charge - compressor not starting
Besides fuses,there are relays that activate this compresorm most of them located under the hood; however, most of the compresors have a pressure control switch, if you have a small loss of refrigerant, eventually it is going to loose pressure an your compressor will not start to prevent compressor damage. Evacuate the system and refill with the correct amont of refrigerant.
Absolutely, in fact, if the AC compressor is cycling like that, low pressure is about the ONLY thing that can cause it. There is a pressure sensor in the low pressure side of the AC system. When the pressure drops too far it turns off the compressor to prevent damage. As the compressor runs it pulls refrigerant from the low side, compresses it and sends it to the condenser where it is cooled. When that happens there is less refrigerant available to the low side. There is no point in running a compressor if there is nothing left on the low side to compress, so it shuts down. After enough refrigerant works past the orifice and into the low side again, the low side pressure builds up and the compressor restarts.
Blown fuse (compressor clutch) refrigerant leak
Low refrigerant charge? Bad compressor?
No. The entire cooling system is designed to use a specific refrigerant. To change any one component would throw every thing off.