Hang Zhou Dawn Air Conditioning Co .,Ltd.

What frequency converter will be whistling in the boot?
Variable frequency drive operating frequency, heat or cooling mechanisms in the open, in order to quickly make the room temperature reaches the set value, the press will be running high frequency, then we will send whistling sound, but when the indoor temperature close to the set Temperature, the press will run with low frequency, when the whistling sound will soon disappear, and the steady state frequency machine up and running more than a small fixed-frequency aircraft noise and feel more comfortable.
After the air conditioner is dirty, clean the air conditioner with hot water Can?
After the dirty air conditioner, do not use organic solvents, cleaning agents and more than 40 ℃ hot water, as it will cause the enclosure to fade or distortion.
Why does the display still off air after the time or temperature display?
This phenomenon is designed with this feature turned off to display the time or room temperature, you if you want to cancel this show on the remote control can "Show" button to adjust, if the remote control is no "Show"button you need to unplug Power Supply (displayed minimal power consumption).
EER air conditioner what is the definition and formula, how to calculate?
(1) air conditioner energy efficiency, that is, nominal cooling capacity (heat exchanger capacity) and the ratio of operating power that EER and COP.
(2) EER is the cooling coefficient of performance of air conditioner, also known as energy efficiency, said air conditioner cooling capacity per unit power.
(3) COP is the coefficient of thermal performance of the system air conditioner, air conditioner units that power heating capacity.
(4) mathematical evaporator coils expression is: EER = cooling capacity / cooling power consumption, COP = heat capacity / heating power consumption.
(5) EER and COP higher the smaller the air-conditioner energy consumption, the higher the performance ratio.