Huber MPC Minichiller 280, Manual

Page: 40 / 60

Setup mode
OPERATION MANUAL Chapter 4
Minichiller®
V2.4.0en/09.08.21//1.30
40
4.2.1.1 Filling and venting with >Sight glass< [23]
PROCEDURE

Ensure that a hose was installed at the >Overflow< [12] (if installed).
The other end of the hose must be inserted in a suitable collecting container. Excess thermal flu-
id will leak at this point when the temperature control unit is overfilled. Hose and container must
be resistant to the thermal fluid and the temperature.

Manually open the >Filling port< [17].

Carefully pour suitable thermal fluid, using the filling accessories (funnel and/or beaker) into the
>Filling port< [17]. The thermal fluid flows into the temperature control unit and through the
hose connections to the external application. The fill level is displayed in the >Sight glass< [23].
Follow the instructions for the proper disposal when cleaning filling accessories. → Page 15, sec-
tion »Proper disposal of resources and consumables« .

Switch on the temperature control unit.

Set the setpoint to 20 °C. → Page 36, section »Set/change setpoint« .

Start the circulation by pressing the >Start/Stop button< [E].

Refill thermal fluid as needed. Observe the fill level in the >Sight glass< [23]. The filling/venting
process is complete when the temperature control unit is filled sufficiently.
If, with externally closed applications (reactors), the fluid level in the fill level display remains the
same when the pump is running and when the pump has stopped, the application has been vent-
ed.

Stop the circulation by pressing the >Start/Stop button< [E].

Turn off the temperature control unit.

Check the level of the collecting container at regular intervals. Empty the container when neces-
sary and dispose of its contents properly.

Manually close the >Filling port< [17].
The temperature control unit is now filled.
Venting must be performed especially during commissioning and after a change of thermal fluid.
This is the only way to ensure trouble-free operation.
Note that the volume expansion of the thermal fluid depends on the working temperature range
you wish to work in. At the “lowest” working temperature, do not go beyond the minimum mark
of the >Sight glass< [23] and at the “highest” working temperature there should be no overflow
from the >Expansion vessel< [18]. In case of overfilling, drain the excess amount of thermal fluid.
→ Page 42, section »Draining with >Sight glass< [23]« . Check if the thermal fluid can be reused.
Follow the instructions for the proper disposal. → Page 15, section »Proper disposal of resources
and consumables« .
Fill levels in the
>Sight glass<
[23]