Abstract: A line set saver (12) has a swab (60) with a wiper (66) for cleaning refrigeration suction and discharge lines. A gas injection port (34) and a line injection port (38) extend through the line set saver (12) to an injector (16) located on a forward end (30). A threaded hole (32) is provided on a rearward end of the gas injection port (34). The line injection port (38) extends from a first side (54) of the line set saver (12) to the gas injection port (34), and a line (42) extends from the first side (54), through the line injection port (38) and from the injector (16). A terminal end of the line (42) is secured to the swab (60). A reel (44) is pivotally mounted to the first side (54) of the line set saver (12) for spooling the line (42) relative to the line injection port (38).

Abstract: A refrigerant slide calculator for determining proper refrigerant charge displays on a single side representations for performance characteristics, measured temperatures and pressures for more than one refrigerant, preferably both R22 and R410a. The slide calculator has an operator a sleeve, with the operator being a card which slidably fits within the sleeve. The operator has superheat data areas and subcooling data areas. The sleeve has different portions defined as a superheat region and a subcooling region, with windows matching the various measured wet bulb and dry bulb temperatures. In the superheat region, vapor pressure windows are provided which correspond to the different refrigerants, and a singular required vapor line temperature is displayed corresponding required superheat. In the subcooling region, a required liquid line temperature window and required subcooling data field are provided along with a liquid pressure window representing two different refrigerants.