supply of refrigerant recovery unit.refrigerant recovery unit.,refrigerant recovery unit consisting of (1) gas recovery machine suitable for r - 22, r 407c and other category iv refrigerants working in 230 v ac, 50hz, 0.75 hp motor, 1450 rpm, oil less air cooled , piston type with automatic safety shut off at 38.5 bar (min), recovery rate (liquid) not less than 1.8 kgs / mi n equivalent to value make model no. vrr 12 l - 1 no, (2) empty cylinder 10 kg - 1 no, (3) double gauge manifold - 1 no., make acceptable - appion, robinair, inficon, value or subsequently equivalent. [ warrant y period: 30 months after the date of delivery ] ]