When changing a compressor in a refrigerator, it's essential to consider several factors to ensure the proper functioning and efficiency of the appliance. Here are some considerations:
Compressor capacity: The compressor's capacity is specified in horsepower (HP) and indicates its ability to compress and circulate refrigerant. In your case, you are changing from a 1/6 HP compressor using R-134a refrigerant to a 1/5 HP compressor using R-600a refrigerant. It's important to note that the capacities are very similar, so this change should generally be acceptable.
Refrigerant type: R-134a and R-600a are different refrigerants with distinct properties. R-134a is a hydrofluorocarbon (HFC) refrigerant, while R-600a is a hydrocarbon (HC) refrigerant. While the change from R-134a to R-600a is feasible, it requires some adjustments due to the differences in their performance characteristics.
System compatibility: Before making any changes, it's crucial to verify if the refrigerator's components, including the condenser, evaporator, and expansion device, are compatible with R-600a. Different refrigerants have varying operating pressures and lubricant requirements, so the system should be designed or modified to handle the specific refrigerant you plan to use.
Condenser size: The condenser's primary function is to release heat from the refrigerant, condensing it from a gas to a liquid state. Changing the compressor's capacity might not necessarily require changing the condenser size, especially if the HP difference is relatively small (1/6 to 1/5 HP).
System efficiency: A properly matched compressor, condenser, and evaporator will ensure the refrigerator operates efficiently, maintaining the desired cooling temperatures without undue strain on the components.
Safety considerations: When dealing with refrigerant and compressors, safety is paramount. If you're not familiar with refrigeration systems, it's best to seek help from a qualified technician who can assess the system and make the necessary adjustments for you.
In summary, changing the compressor from a 1/6 HP R-134a unit to a 1/5 HP R-600a unit may be possible, but it requires careful consideration of system compatibility, refrigerant properties, and component matching. Seeking assistance from a professional technician experienced in refrigeration systems is advisable to ensure a successful and safe modification.