Huber Pilot ONE Unistat T300 Series, Operation Manual

Page: 25 / 90

Commissioning
Chapter 2 OPERATION MANUAL
V1.2.0en/12.05.15//14.06
Liability for errors and misprints excluded. Unistat® T300 Series
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2.9.2.2 Removing the Isolating sleeve (only for externally closed applications)
PROCEDURE
 Remove the >Expansion vessel cap< [22].

Remove the >Isolating sleeve< [27]. The permanently fitted >Guide rod< [A] remains in the
housing.
 Close the >Expansion vessel cap< [22].

Fasten the >Isolating sleeve< [27] at the place provided on the housing-side of the temperature
control unit.
 Open all valves, in case of standard devices the >Venting valve expansion vessel< [21] by turning
them anti- clockwise (turn 90° left as far as it will go).
2.10 Connecting externally closed/open application
The illustration “Wiring diagram” can be found on page 89 in section »Annex« .
2.10.1 Connecting an externally closed application
Operating an externally closed system with >Isolating sleeve< [27] installed
BURSTING DUE TO OVERPRESSURE DURING TEMPERATURE CONTROL.

Shut down the temperature control unit immediately.

Allow the thermal fluid to cool to room temperature.

Prior to starting up the temperature control unit with an externally closed system, remove the
>Isolating sleeve< [27] (see page 24, in section »Mounting/removing the isolating sleeve (op-
tional)« ).

Open all valves, in case of standard devices the >Venting valve expansion vessel< [21] by turn-
ing them anti- clockwise (turn 90° left as far as it will go).
Pressure > 0.5 bar (g) with glass apparatus
MATERIAL DAMAGE CAUSED BY CRACK FORMATION AT THE GLASS APPARATUS.

Provide an over-pressure protective device to prevent damage to the glass apparatus.

Do not install valves/quick-release couplings in the feed/discharge lines from the temperature
control unit to the glass apparatus and from the glass apparatus to the temperature control
unit.

If valves/quick-release couplings are required:

Install burst disks on the glass apparatus itself (at the feed and discharge lines).

Install a bypass upstream of the valves/quick-release couplings for the glass apparatus.

Matching accessories (e.g. bypasses to reduce pressure) can be found in the Huber catalog.
Remove the Isolating
sleeve
Example: Connecting
an externally closed
application