A full day service call plus the cost of the compressor, refrigerant and new driers.Plus perhaps disposal charges of the old one since it contains oil. Depending on the age and condition of your system sometimes it makes sense to replace the entire unit.
The compressors are basically the same . Very simply put with out getting to technical is what makes a heat pump a heat pump is a reversing valve that changes the direction the refrigerant travels in lines leading to and from the condensing unit and to the coil, without changing direction of flow in they compressor. You should always check with the manufacture before replacing an unlike compressor for compatibility.
it is necessary to heat the compressor and strike it with a rubber mallet!
In a car the heat usually comes from engine "waste heat". You just need to be running the engine. The compressor is part of the air conditioner, which is used for cooling not heating.
Your compressor has possibly stopped working. If you are lucky, the serviceman will only have to replace the freon to get it going again.
No it's not. But if that's all you can afford then, you have to put the compressor in. You will have a one year warranty on the compressor. If you have a new system put in you can get a ten year warranty on every part. Goodmans and Amana, also have units with lifetime warranties.
enthalpy of air leaving the compressor minus enthalpy of air entering the compressor
latent heat
No. The compressor is needed to run in reverse in order to pull warm air from the outside to heat the home.
the compressor is places a drag on the engine,as a result it would generate more heat but the car should not be overheating. The fan motors should be on when the a/c is running.
The exact same thing it does in the cooling mode, the change between modes of operation does not take place in the compressor.
no sounds like your wires are crossed at your thromsthat Answer If you have a heat pump system, YES the compressor should run. You can find out if the system is a heat pump usually by looking at the thermostat. Heat pump thermostats usually have "Cool-Off-Heat-Emergency Heat" on the system switch. Another way would be to feel the air coming out of the outside unit when the heat is on. If the air coming out feels very cold, then it's a heat pump. even if you have a heat pump, the only way the in door unit should be producing heat is if you are all electric if you are gas the heat pump should lockout to prevent the persure from getting to high causing the indoor coil to blow up.
Heat pumps use a compressor to make the working fluid condense at a higher temperature.The compressor needs input energy.