EPA defines major repairs as “Maintenance, service, or repair that involves removal of the appliances"
Apart from these, any other repairs are considered as “minor repairs.” An evaporator or condenser coils are removed/replaced if there is an irreparable flaw in it. Examples of an irreparable flaw would be if the coils have rusted or a hole in the coil piping is so big that it cannot be closed by repairing it. Evaporator and condenser coils are types of heat exchangers. An auxiliary heat exchanger means a secondary or an extra heat exchanger in the system. It is generally seen in heat pumps and large systems cooling vast spaces. Examples of major compressor repairs are
We will talk about compressor burnout in more detail. A compressor burnout is a major repair, and an oil sample is taken to detect it. A sample of the oil is taken to check its properties whenever there is a compressor burnout. A compressor burnout means that the compressor's motor windings have burnt due to a short circuit. A short circuit in the electrical component produces very high voltage and temperatures. This burns the refrigerant oil during a burnout. Burnt refrigerant oil has acidic properties that harm the system. While repairing any system, a technician should follow these steps,
Recall that all this has been discussed in the evacuation topic. 2. Minor RepairsApart from all the repairs mentioned above, any other repairs are considered as minor repairs. For any such repairs, we generally use the method of heating the system using heating blankets to detect leaks. All repairs are done after detecting leaks and recovering refrigerant if needed. 3. ConclusionIn this module, we understood EPAs classification of major and minor repairs. These classification of major repairs is an important part of the EPA Type 3 Course. Question #1: A "major repair" under EPA's regulations would be;
Scroll down for the answer... Replacing a condenser coil. EPA defines major repairs as “Maintenance, service, or repair that involves removal of the appliance
By this definition, replacing a condenser coil is a “major repair.” Question #2: We would take an ____ if a unit has a compressor burnout, and it is considered a ____.
Scroll down for the answer... oil sample; major repair A compressor burnout is a major repair, and an oil sample is taken to detect it. A sample of the oil is taken to check its properties. |