Lauda Proline RP 1290 C, Operating Instructions Manual

Page: 22 / 120

Proline Edition X cooling thermostats
22
Preparation
YACE0100 / October 4, 2018
6.2 Filling and draining
Filling
 
Close the drain cock.

Carefully remove all residues of the previous
heat transfer 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
WXArn103
(

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 heat transfer liquids (

6.3) may only be used below
the flash point.

When using heat transfer oils note that they expand on heating (approx. 10 %/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

top up with liquid if necessary.

Set the upper and lower temperature limits (

7.8.3) in accordance with the limits of the
heat transfer liquid in use.
Draining

Switch off the thermostat withdraw the mains plug.

Let out the heat transfer liquid through the drain cock;
fit a hose when doing this.

On thermostats, the drain cock is located behind the
front panel.

Completely drain the bath, external consumers,
accessories and hose connections and flush or clean
them (e.g. with new heat transfer liquid).
 
Follow the regulations for the disposal of used heat transfer liquid.
Do not drain heat transfer liquid when it is hot or at bath temperatures below
0 °C!
Drain cock