Huber Pilot ONE Unistat T3*0, Operation Manual

Page: 66 / 100

Setup mode
OPERATION MANUAL Chapter 4
Unistat® T300 Series
V2.4.0en/22.07.20//17.12
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4.3.1 Cooling water connection
Valid for Unistat T305w HT, T320w HT, T330w HT, T340w HT, and T345w HT
Use of unsuitable/defective hoses and/or hose connections
INJURIES

Thermal fluid

Use appropriate hoses and/or hose connections.

Check periodically for leaks and the quality of the hose and hose connections and take suitable
measures (replace) as required.

Isolate and protect temperature control hoses against contact/mechanical load.

Cooling water

Reinforced hoses must be used to satisfy tougher safety requirements.

Shut off the cooling water supply to the temperature control unit even for shorter downtimes
(e.g. overnight).
The T3xxw HT series is equipped with a cooling water connection with controlled cooling water
consumption. These temperature control units not only enable the implementation of positive
temperature gradients (e.g. setpoint step- changes from 20 °C to 150 °C) but also negative tempera-
ture gradients (e.g. setpoint step-ch anges from 150 °C to 20 °C). The T300w HT series is equipped
with a cooling capacity controller, which regulates the water outlet temperature to a level at which
calcification usually cannot take place (max. 60 °C).
PROCEDURE

Observe the permissible water entry temperature, see data sheet from page 99 in Section
»Annex« .

Observe the permissible water pressure, see data sheet from page 99 in Section »Annex« .

Only use suitable and temperature-stable hoses (e.g. reinforced hoses) and screw connections.
4.4 Filling, venting, degassing and draining
The illustration “connection diagram” can be found on page 99 in section »Annex« .
Extremely hot / cold surfaces, connections and thermal fluids
BURNS/FREEZING OF LIMBS

Surfaces, connections and tempered thermal fluids can be extremely hot or cold depending on
the operating mode.

Avoid direct contact with surfaces, connections and thermal fluids!

Wear your personnel protective equipment (e.g. temperature-resistant safety gloves, safety
goggles).
During an active circulation, the thermal fluid circuit is shut off by shut-off valves
MATERIAL DAMAGE TO THE CIRCULATING PUMPS INSTALLED IN THE TEMPERATURE CONTROL
UNIT

Do not close the thermal fluid circuit during an active circulation by means of shut-off valves.

Warm the thermal fluid to room temperature before stopping the circulation.
4.4.1 Externally closed application
Operating an externally closed application with locked >Expansion vessel< [18]
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 commissioning the temperature control unit with an externally closed application,
unlock the >Expansion vessel< [18] (see page 33 in section »Locking/unlocking the expansion
vessel [18]«
).