about 1 0 lbs min 0 454 kg min of refrigerant to the condenser the multifunctional valve metered about 2975 ft min 907 km min of refrigerant into the saturated vapor line at a temperature of about u2212 5 u00b0 f u2212 35 u00b0 c and a pressure of about 21 lbs in 2 14475 n m 2 and having a vapor density of about 36 lbs ft 3 577 kg m 3 the sensing bulb was set to maintain about 20 u00b0 f u2212 20 u00b0 c superheating of the vapor flowing in the suction line the compressor discharged about 2299 ft min 701 m min of pressurized refrigerant into the discharge line at a temperature of about 115 u00b0 f 32 u00b0 c and a pressure of about 161 lbs in 2 110 977 n m 2 and having a vapor density of about 3 2 lbs ft 3 51 kg m 3 the xdx system was operated substantially the same in low temperature operation as in medium temperature operation with the exception that the fans in the tyler chest freezer were delayed for 4 minutes following defrost to remove heat from the evaporator coil and to allow water drainage from the coil the xdx.