A Refrigerator using R$-22$ works between the temperature limits of $-70$ C and $270$ C$,$ respectively. The refrigerant vapour is dry at the end of adiabatic compression process. There is no under cooling and the expansion is by the Thermostatic Throttle valve. Determine the following. $($i$)$ COP $($ii$)$ Compressor power to remove $200$ kJ $/$ min.