Does a vehicle need a refrigerant system for effecent defrosting?

Answer 1

Actually, yes. Part of the air conditioning system is a condensing unit that dries the air. Most modern cars use this condenser to dry the air so it can be warmed easier and so warm dry air is blown over the windshield to evaporate the moisture.

Answer 2

It will still defrost the windshield without the air conditioning. The use of the A/C compressor in the defrost mode was designed by the vehicle manufacturer to keep the A/C compressor operating all year round. The A/C compressor is a unit comprised of moving parts and pistons. In order to keep the pistons and bearings of the compressor from locking up after sitting for six months out of the year without being used in the colder months, the vehicle engineers thought it wise to cycle the compressor in the defrost mode in the winter, thus keeping everything in working order. The A/C system also removes moisture from the air when it passes over the evaporator core, and drier air helps to remove moisture from the windshield.

Answer 3

No. Cars had defrosters on them before air conditioning was inventd. Frost is a form of ice and needs heat to melt it. Condensation or fog on the inside of the window clears faster with cold air than hot air but you still don't need air conditioning for this. Just turn off the heat and let the blower run or open a window.

Answer 4

Not for defrosting but for defogging. The AC system does run in defrost mode when the outside temp is above about 45 degrees to clear fog quickly.

Answer 5

No..

the defroster is something built into the rear windows.

and is air blown through the vents in the dash for the front window..

cold air will make the frost worse. heat works best

refridgerant is for the AC system

Answer 6

no your heating system is the defroster.it's on your heater control.