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Technical Information
Vent Accessories
Figure 45
Two rubber or plastic hoses from the water supply must be fitted to
the two water cooling banjos.
Cooling may be carried out either through an open circuit with
eventual discharge of the water, or us-ing a closed circuit cooling
system.
The water temperature must be between +10°C and +30°C, with an
inlet pressure between 3 and 5 bar. This allows a flow of about 200
l/h.
The water electrical conductance must be ≤ 500 µs/cm. When the conductance
NOTE
is higher, in closed water circuit, the use of up to 20% of Ethyl-Glycole is
suggested.
Vent Accessories
The vent valve and vent device allow to avoid undesired venting of
the pump during temporary power failure and enables an automatic
vent operation.
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TV 551/701 Navigator User Manual / 87-900-934-01
(M)
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