For the sample work please include the following air$-$source heat pump analysis with a very brief description of the plots and conclusions from them $($maximum half a page total for text$)$:

A T $$ s and a P $$ h diagram of three representative cycles: one reference cycle; one cycle with the $*$same $*$evaporator pressure but a $*$lower$*$ condenser pressure; and one cycle with the $*$same$*$ condenser pressure, but a $*$higher$*$ evaporator pressure. How do the condesner and evapoarator pressures affect w$,$ qL$,$ qH $,$ Tmax, and the COP? This should be shown as text on the plot or included in the figure caption.