When the indoor temperature increases, what generally happens to the superheat (SH)?

When the indoor temperature increases, the superheat generally increases as well. Superheat refers to the temperature of the refrigerant vapor above its boiling point at a given pressure. As the indoor temperature rises, the evaporator coil must absorb more heat to maintain the desired indoor climate. This leads to a greater amount of heat being added to the refrigerant, which increases its temperature and therefore its superheat.

In systems designed for cooling and refrigeration, a higher indoor temperature often results in an increase in the load on the system, causing the refrigerant to evaporate more quickly and potentially raising the superheat. This relationship highlights the importance of properly managing the superheat to ensure efficient system operation and avoid issues such as compressor overheating.