30GTN150, T-6 and T-8 sensors (saturated evaporator refrigerant mounted at the liquid line entering the evaporator and suction gas temperature sensor mount on the front of the compressor just above the oil pump discharge. The manual shows a different DC voltage drop on these sensors. The resistance is the same according to the scale. With the different voltage drops the sensed temperature could deviate as much as 10 degrees if the same sensor was used. (ie) 30GB660-002. Carrier parts said this the right sensor for both applications. Then why the difference posting of voltage drop scales for a given temperature, scales (A) and (B), then it states that use scale (A) for some sensors and scale (B) for the rest. _GEO