Huber Unichiller 400T, Operation Manual

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Commissioning
Chapter 2 OPERATION MANUAL
V2.3.0en/07.06.19//17.12
Unichiller®
31

Tighten the lock screws on the leveling feet after aligning the temperature control unit. This
prevents the leveling feet from changing their height during operation.
2.10.2 Opening/closing valves
Opening valves:
Open valves by turning them counterclockwise (turn 90° left as far as it will go).
Close valves:
close valves by turning them clockwise (turn 90° right as far as it will go).
PROCEDURE

Check that all valves are closed.

Close all valves by turning them clockwise (turn 90° right as far as it will go).
2.10.3 Emergency stop switch (optional): Check switching status
PROCEDURE

Check the >Emergency stop switch< [70].
This switch must not be pressed (activated) when taking the temperature control unit into oper-
ation.

If required, release the >Emergency stop switch< [70] by turning it clockwise. A built-in spring in
the >Emergency stop switch< [70] returns it to its original state.
2.11 Connecting externally closed application
The illustration “connection diagram” can be found on page 85 in section »Annex« .
2.11.1 Connecting an externally closed application
Overpressure in the application (e.g. > 0.5 bar (g) with glass apparatus)
MATERIAL DAMAGE TO THE APPLICATION

Provide an overpressure protective device to prevent damage to the application.

Do not install valves/quick-release couplings in the feed/discharge lines from the temperature
control unit to the application and from the application to the temperature control unit.

If valves/quick-release couplings are required:

Install burst disks on the application itself (at the feed and discharge lines).

Install a bypass upstream of the valves/quick-release couplings for the application.

Matching accessories (e.g. bypasses to reduce pressure) can be found in the Huber catalog.
Opening and closing
valves
Exemplary layout of
the switches