HYDROCAL 1001+ Installation and operation manual
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2.
Installation instructions
2.1.
Installation positions
To ensure the correct function of a HYDROCAL unit the installation position is very important. On a
typical transformer three positions are possible:
Pos. 1
Output side of cooling unit:
Please install the unit on a straight piece of pipe on the cooler output between the cooler
and the main oil tank. In order to avoid negative pressure, the unit must absolutely be
mounted on the output of the oil circulation pump.
Note:
Choose this position only if a continuous oil flux through the cooler is guaranteed
Pos. 2
Draining valve on the transformer tank:
The flange of the draining valve must be at minimum height of 40 cm in order to allow in-
stallation and mounting of HYDROCAL unit.
Pos. 3
Upper filling valve:
It is possible to mount HYDROCAL unit on this position, if the filling level of the oil is min.
100 cm higher than the center of the connection thread.
This position is not recommended, because it may be difficult to operate the unit.
Pos. 4
Input side of cooling unit:
Never install the HYDROCAL unit on top of the cooling unit or on the suction side of
the cooler pump!
Note:
On the installation position a good and continuous oil circulation must be present.
