Is air conditioning heating drained by outdoor unit or drain pipe?

In winter, the circulation direction of heating refrigerant is opposite to that of refrigeration. During cooling, the condensed water generated by the evaporator of the outdoor unit will flow out from the indoor drainage pipe, while during heating, the condensed water generated by the condenser of the outdoor unit will directly flow down from the bottom of the outdoor unit. If it affects the downstairs or the bottom of the outdoor unit, you can install a drain nozzle on the drain hole of the outdoor unit and then discharge it to other places through the water pipe.

The outdoor unit of split household air conditioner has no drain pipe, only the condensate drain pipe leading from the indoor unit to the outdoor, and there are more than three drain holes on the chassis of the outdoor unit.

If the defrosting water generated by outdoor machine-made heat is to be collected and discharged centrally, most of the drainage holes should be blocked, leaving only one drainage hole, and a special device should be used for centralized discharge.

Extended data:

Air conditioning is divided into single cooling air conditioning and cold and warm air conditioning, and the working principle is the same. Freon used to be the common refrigerant in air conditioning. The characteristic of freon is that it releases a lot of heat when it changes from gas to liquid.

When it changes from liquid to gas, it will absorb a lot of heat. That is, the air conditioner is designed according to this principle.

The compressor compresses the gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and then sends it to the condenser (outdoor unit) for heat dissipation, and turns it into liquid refrigerant at normal temperature and high pressure, so the outdoor unit blows out hot air.