Why is the central air conditioner in the hotel always cold?

That's not true. There will be hot air.

General air conditioning heating, hot air can come out after 3-5 minutes, the specific situation depends on the outdoor environment at that time. In order to avoid the situation that the newly opened machine-made heat pipe is not completely heated and the fan coil blows out cold air, many models now have the function of preventing cold air.

When the air conditioner is heating, the automatic defrosting process may last for 5- 10 minutes when the outdoor ambient temperature is too low or the outdoor unit of the air conditioner is frosted. When the weather temperature is low, the heating effect of ordinary air conditioners will obviously decrease. It is suggested to turn on the electric auxiliary heating function to achieve the ideal heating effect.