Even if the insulating material is made up of tight cells, air can get through joints or expansion defects. ... For below zero temperatures, the water may freeze in the insulating walls. ... If not, manual defrosting should be carried out : this means stopping the installation and removing the frost by running water over the pipes.
|Title||:||Dairy Science and Technology|
|Author||:||Fondation de technologie laitière du Québec|
|Publisher||:||Presses Université Laval - 1985|