Air in01 / 08
A breath of room air.
Room air enters the lower grille and passes through the fine mesh filter. But the grille does not pull it in. A powered blower behind the coil creates the airflow.
Room → grille → filter
Air, illustrated. Follow the air through an air conditioner.
AC
Heating
The Air Operator is surrounded by a soft blue cooling aura.
Loading the detailed model…
The blower02 / 08
What makes air move?
An electric motor turns this drum of curved blades. The blades add energy to the air, creating a pressure difference. Room air flows toward the lower pressure at the inlet, through the filter and coil, then through the wheel to the outlet.
Lower pressureThrough the blades
Electrical power → rotation → airflow
Cooling03 / 08
Heat crosses the copper.
Room air passes between the cold fins. Inside the copper tubes, low-pressure refrigerant absorbs heat and boils from liquid into vapor. The metal wall transfers heat; the air and refrigerant never mix.
Air outside the tube · refrigerant inside
Refrigerant & power04 / 08
A loop needs a driver.
Yes, refrigerant must circulate. An electric motor inside the compressor draws in low-pressure vapor and compresses it into hotter, higher-pressure vapor. That pressure difference drives flow through the copper circuit. The refrigerant carries energy; it is not fuel that gets used up.
Electric motor → compressor → circulating fluid
Air out05 / 08
Back to you, cooler.
The blower pushes cooled air through the upper louvers. This air mixes into the room, and other room air returns through the lower grille. The blower keeps the whole indoor loop moving.
Blower → upper outlet → room
Heat outdoors06 / 08
The heat leaves out back.
A separate fan draws outdoor air through the side vents and pushes it across the hot condenser coil. Refrigerant gives up the room’s heat plus the compressor’s work, then condenses. The warmer outdoor air carries that energy away.
Outside air → hot coil → back outdoors
Energy & entropy07 / 08
Cool here. More heat there.
Cooling lowers the room’s thermal entropy as heat leaves. Outdoors gains more entropy, and the complete real process increases total entropy. Electrical work makes it possible to move heat from a cooler room to warmer surroundings.
3 kWfrom the room+1 kWelectricity=4 kWto outdoors
Illustrative balance · not an equipment rating
Holding a temperature08 / 08
Set it. Then keep checking.
A room-air sensor compares the measured temperature with your target. This example starts cooling above the target and rests once the room is a little below it. A small temperature band prevents constant switching. Try changing the target.
Target room temperature22.0°C
Room 26.0°Cooling
Solid: room · dashed: target0 min
Time sped up. On/off example with a ±0.3°C band.
Measure → compare → run or rest → repeat
Arrow keys / WASD to rotate
A little cooler. Around we go.