Answer
See explanation
Work Step by Step
Allowing a temperature difference of $10^{\circ} \mathrm{C}$ for effective heat transfer, the evaporation and condensation temperatures of the refrigerant should be $4^{\circ} \mathrm{C}$ and $36^{\circ} \mathrm{C}$, respectively. The saturation pressures corresponding to these temperatures are $338\ \mathrm{kPa}$ and $912\ \mathrm{kPa}$. Therefore, the recommended evaporator and condenser pressures are $338\ \mathrm{kPa}$ and $912\ \mathrm{kPa}$, respectively.
