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Lauda RP 890 User Manual

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Proline Low-temperature Thermostats
YACE0072 / 21.08.07 Preparation 21
6.2 Filling and draining
Filling
Close the drain cock.
Carefully remove all residues of the previous
heat carrier liquid (blow dry and remove screw
plugs!).
Maximum filling level is up to 10 mm below
the top edge of the bath. Overfilling leads to
the display of the warning
VW@pl0/2
(Ì Section 7.14.4).
Best operation is with a level 20-80 mm below
the top edge of the bath.
The cooling pipe of the evaporator should be
covered. Depending on the operation up to
three pipe windings might be uncovered.
Low-level cut-off occurs at about 95 mm
below the top edge of the bath.
The units are designed for use with non-flammable and flammable liquids to
DIN EN 61010-2-010. Flammable liquids must not be used higher than 25°C below the
fire point (Ì Section 6.3).
When using heat carrie
r oils note that they expand on heating (approx. 8%/ 100°C).
With enclosed external loads, the overall expansion takes place in the bath.
Ensure that with the connection of an external load, the liquid level does not drop
impermissibly due to filling the load Æ top up with liquid if necessary.
Set the upper and lower temperature limits (Ì 7.8.3) in accordance with the limits of the
heat ca
rri
er li
quid in u
s
e.
Draining
Switch off the thermostat withdraw the mains plug.
Let out the heat carrier liquid through the drain cock; fit
a hose when doing this.
On thermostats, the drain cock is located behind the
front panel.
Follow the regulations for the disposal of used heat carrier liquid.
Do not drain heat carrier liquid when hot or at bath temperatures below 0°C!
Drain cock

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Lauda RP 890 Specifications

General IconGeneral
BrandLauda
ModelRP 890
CategoryThermostat
LanguageEnglish

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