Huber Unichiller 400T, Руководство по эксплуатации

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Chapter 4 OPERATION MANUAL
V2.3.0en/07.06.19//17.12
Unichiller®
63
4.3.1.2 Draining externally closed applications
Hot or very cold thermal fluid
SERIOUS BURNS/FREEZING OF LIMBS

Before draining, ensure that the thermal fluid has room temperature (20 °C).

If, at this temperature, the thermal fluid is too viscous to be drained: Control the temperature
of the thermal fluid for a few minutes until the viscosity will allow drainage. Never control the
temperature of the thermal fluid when the Drain is open.

Danger of burns when draining thermal fluids at temperatures above 20 °C.

Wear your personal protective equipment when carrying out the drain operation.

Only drain with a suitable draining hose and container. These must be resistant to the thermal
fluid and the temperature.
PROCEDURE

Connect a suitable drain hose to the >Drain< [8].

Place the other end of the hose in a suitable container.
Free-standing models

Open the >Drain valve thermal fluid< [3] by turning it counterclockwise (turn 90° left as far as it
will go). The thermal fluid will flow from the external application via the pump chamber and the
draining hose into the container. Check if the thermal fluid can be reused. On page 15 observe
Section »Proper disposal of resources and consumables« .

Drain your externally closed application. The description for the drainage procedure can be
found in the documents you received with the application. Check if the thermal fluid can be re-
used. On page 15 observe Section »Proper disposal of resources and consumables« .

First open the >Circulation flow< [1] connection.

Then open the connection >Circulation return< [2]. Leave the temperature control unit open for
a while to dry out (without screw caps) and with the >Drain valve thermal fluid< [3]) open.