HYDROCAL 1001+ Installation and operation manual Page 6/76
Remove the HYDROCAL unit from the valve every time you degas or refill
the transformer. You can also close the transformer valve.
Never operate the HYDROCAL unit on a valve that is closed for a long
period of time. Remove the unit if this cannot be avoided. Please refer to
the de-installation instructions.
Never install the HYDROCAL unit on the suction side of the cooling
pump!!
Never install the HYDROCAL unit on an elbow or curve of a tube.
Turbulences in a tube curve can create a negative pressure, which can dam-
age the membrane.
Never install or remove the HYDROCAL unit without opening the aeration
screw first.
Never use galvanized fittings or valves to mount the HYDROCAL unit.
Galvanized fittings or valves can react with oil, this will produce incorrect
measurement values.
Never clean the HYDROCAL unit with high pressure cleaning equipment.
High pressure cleaning equipment used to clean transformers can seriously
damage the HYDROCAL unit.
Never use a chaining key tool for mounting.
Use of such tools can damage the surface of the connection unit and the
threads. Please use a tin spanner M55 or an adjustable tin spanner for 1 ½“.
Attention!!!
Faulty or inappropriate handling of the connection unit, like malfunction
by negative pressure, paint or solvent liquids make the warranty invalid.
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