4 - HUBER

Thermal
Fluid
Preparatory
measures
for thermal
fluid
circulation
Control
3. Commissioning
3.2. Preparing the thermostat for use
Applies to bath thermostats
with external pump connection
For internal thermoregulation, please proceed as follows:
close the pump connections with plugs and sleeve nuts (M16x1 / 19
spanner/wrench), at the same time hold against it at the pump
connection with 17 spanner/wrench.
For external thermoregulation, please proceed as follows:
remove the plugs and sleeve nuts on the pump connections.
Replace them with appropriate hose connection to your external
application.
For more information please see chapter 4 „thermoregulation via
controller“.
Applies to chillers (thermostats
with closed external circulation)
2.4Make
sure that the
draining valve is closed.
(upright position or „right
stop“).
2.5 Connect hoses at
connecting pieces 10 and
11 for circulating thermal
fluid to and from the
external device (if fitted).
Note:
Recommended tightening torques for
hose couplings when using silicone
oil as thermal fluid:
M16 x 1 30 Nm
M30 x 1.5 85 Nm
Alternative
Hoses can be connected
via shut-off valves.
(Please refer to your
Huber catalogue under
„accessories“)
Verify the following:
Make sure that all connections are correct and that there are no leaks.
For water-cooled thermostats:
Unobstructed inflow and outflow of the cooling-water exists
Pressure difference between the cooling-water inflow and outflow is 3 to
5 bar. Cooling-water supply temperature is 15 °C to 25 °C.
32-2
12
12
open
close
Hazard!
If fitted, close valves only
when performing work on
the reactor. Remember that
thermal fluid expands and
contracts with changes in
temperature. Sealing the
external application will
expose the application to
these forces!
10 11