| 62 / | HD | REFRIGERATION |
| 272 | DF | WITH MEANS PREVENTING OR HANDLING ATMOSPHERIC CONDENSATE RELATIVE TO HEAT ABSORBER {9} |
| 277 | ![]() | .~ Means utilizing heat developed by refrigeration producer {2} |
| 278 | DF | .~.~> Bypassing or reversing internal fluid flow |
| 279 | DF | .~.~> Means conducting atmospheric condensate to heat rejecter {1} |