The residential air conditioning machine within the power supply and power supply?
The first indoor parts are usually made of 220 v electric power supply to the transformer - control main board - seg. Actually, the power supply is controlled by the indoor machine of outdoor mainboard control 220 v power on and off. There are a few models is the direct outdoor on 220 v power supply controlled by the indoor machine control main board 12 v or 24 v direct current control of the ac contactor to outdoor open or stop the outdoor but now the mainstream models are adopted.
Outside the machine power supply unit, air conditioning unit of the main control board in the outdoor, indoor machine only within a relatively simple machine circuit board; Host machine power supply unit is mostly use 380 v3n ~ power; Such as split units, air cooling pipe machine, the fission of medium-sized above water source heat pump units, etc. Inside the machine power supply of the air conditioning, the main control panel is installed in the indoor machine, inside the main control board through on-off signal power supply for outdoor; Such as household wall air conditioning, household cabinet air conditioning; The machine power supply has the advantage of convenient, easy maintenance.
