Reason: when the humidity outdoor, indoor, outdoor heating surface of the condenser will, this will be the frost of heating efficiency.
原因：当室外湿度大的时候，室内机制热，室外机冷凝器表面会结霜，这样会影制热效率。
2
The main reason of which is the heat transfer efficiency is weakened by jamming heavily or corroding the surface of the condenser.
主要是由于冷凝器表面严重积灰堵塞，或者是受腐蚀影响而减弱了换热效果。
3
In the condenser, which is a large surface-type heat exchanger, the steam is condensed by transferring its latent heat of vaporization to the cooling water (CW).