GE Hydran 201i Installation Manual page 19

8. Do not install the H201Ti on the inlet side of the radiator pump (see Figure 9
below).
9. Do not use galvanized fittings to install the brass adaptor and the sensor.
Galvanized fittings (pipes, reducing bushings, rings, etc.) may react with the oil
and produce elevated gas level readings. Similarly, do not use galvanized
fittings on transformer valves used for oil sampling.
Page 20
Figure 9: Do Not Install the H201Ti on the Inlet Side of the Radiator Pump
Hydran* 201i Installation Guide
17996 Rev5, August 2013