Huber Pilot ONE Unistat T300 Series, Operation Manual

Page: 61 / 90

Setup mode
Chapter 4 OPERATION MANUAL
V1.2.0en/12.05.15//14.06
Liability for errors and misprints excluded. Unistat® T300 Series
61

Check the temperature in the >Expansion vessel< [18] again.

Continue to increase the setpoint by 10 K increments until the temperature in the >Expansion
vessel< [18] no longer rises during an increase.

Now maintain the thermal fluid at the last temperature set until the >Expansion vessel< [18] has
reached ambient temperature.
The entire process can take several hours, depending on the degree of contamination and the
application size. Continue the control process until the temperature in the >Expansion vessel< [18]
has returned to ambient temperature.

Go to the “Categories Menu”.

Tap on the category “Temperature Control”.

Tap on the category “Start/Stop”.

Tap on the dialog entry “Stop degassing”.

Confirm your choice by tapping on “OK”.

Read the note and confirm by tapping on “OK”. Degassing stops immediately and the pump
continues to run for approx. 30 seconds. Wait until the pump stops.

Connect a suitable drain hose (must be compatible with the thermal fluid) to the >Expansion
vessel drain< [9] (if fitted) or >Drain< [8] an.

Place the other end of the hose in a suitable container, which is compatible with the thermal
fluid and the thermal fluid temperature.

Drain the >Expansion vessel< [18]. To do so, open the >Expansion vessel drain valve< [5] by
turning it counterclockwise (turn 90° left as far as it will go). Pay attention to the high temper a-
ture of the thermal fluid.

Close the >Expansion vessel drain valve< [5] by turnin g it clockwise (turn 90° right as far as it will
go).

Remove the drain hose and the container.

Open the >Expansion vessel cap< [22] by hand.

Carefully pour new, original thermal fluid, using the filling accessories (funnel and/or beaker) into
the >Filling port< [17]. You can see the fill level in the >Sight glass< [23] or >Level indicator<
[25]. Do not mix dissimilar thermal fluids.

Close the >Expansion vessel cap< [22] by hand.

The off-gassing process is complete.
4.4.1.3 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 valve< [4] is open.

>Drain valve< [4] is closed by turning it clockwise (turn 90° right as far as it will go).

Danger of burns when draining thermal fluids at temperatures above 20 °C.

Wear your personal protective equipment when carrying out the drainage operation.

Only drain with a suitable draining hose and container (these must be resistant to the thermal
fluid and temperature).
PROCEDURE

Connect a suitable drain hose to the >Drain< [8].

Place the other end of the hose in a suitable container.
Table model

Open the >Drain valve< [4] 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.

Drain your externally closed application. The description for the drainage procedure can be
found in the documents you received with the application.

Open the connection >Circulation flow< [1].

Open the >Circulation return< [2] connection. Leave the temperature control unit open for a
while to dry out (without screw caps) and with >Drain valve< [4]) open.