NATURAL REFRIGERATION 



187 



erator, while less efficient than that using ice overhead, 

 is commonly preferred because of the greater ease of 

 filling the ice chamber. Fig 43 illustrates the general 

 plan of construction. The details as to floor and wall 

 construction are the same as those shown in Fig. 42. 



REFRIGERATOR ROOM 



Fig. 43. Refrigerator with ice box at end. 



Refrigerator Cooled with Ammonia. Such a re- 

 frigerator may be constructed in the same way as the one 

 described in the preceding pages, with the exception 

 of the ice chamber. In place of this a brine tank and 

 refrigerator coils are used as shown in Fig. 52, page 206. 

 For further particulars regarding this method of refrig- 

 eration, see chapter on Mechanical Refrigeration. 



