| 62 / | HD | REFRIGERATION |
| 132 | DF | AUTOMATIC CONTROL {19} |
| 190 | DF | .~ Refrigeration producer {12} |
| 208 | ![]() | .~.~ Single refrigeration producer controlled by plural sensors {2} |
| 209 | DF | .~.~.~> Compensating or modifying {1} |
| 213 | DF | .~.~.~> Alternative or selective sensors |