housing 38 are shown in this view as shown there are three locations 52 51 and 53 wherein water may accumulate at the vertically lower positions the water may typically drain from heat exchangers 150 which are mounted atop the combined system 40 as shown in fig2 b the combined system 40 has the air machines 121 and 122 mounted in vertically reversed positions thus the area 53 associated with the machine 122 is at a vertically upper location 53 in the machine 121 similarly the areas 51 and 52 associated with machine 122 are in vertically upper locations as such the accumulation problems associated with areas 51 52 and 53 of fig2 a are not a concern in the positions 53 51 and 52 of fig2 b fig3 shows an end view of the turbine housing 30 a conduit 34 is illustrated having an inner radius r 1 in one embodiment r 1 was 2 120 2 130 u2033 5 384 5 410 cm a cross section 4 4 is taken through this conduit the conduit 34 is formed in a flange 100 which is centered at an angle c from a line x line x is drawn perpendicular to a plane through another conduit 31 with line x passing through a center d of the main housing the angle c is 31 36 u00b0 in one embodiment the cross section 4 4 is taken at a vertically lower portion of the conduit 34 in the flange 100 at the opposed end of the housing 30 is the conduit 31 structure within a circle identified by the numeral 5 will be explained in detail below fig4 is taken along line 4 4 and shows detail of the conduit 34.