Commissioning
Chapter 2
OPERATION MANUAL
V1.2.0en/12.05.15//14.06
Liability for errors and misprints excluded.
Unistat® T300 Series
23
2.8
Temperature control units with water cooling
Open electrical wires below the temperature control unit at cooling water inlet temperatures
below 10 °C.
DEATH FROM ELECTRICAL SHOCK BY WATER ENTRY INTO THE ELECTRIC LINES.
A cooling water inlet temperature below 10 °C may result in condensation in the temperature
control unit and at the cooling water connections. The condensation is caused by high humidity
at the cooling water-bearing components. In this case, the condensation exists the tempera-
ture control unit at the bottom.
Electrical lines directly below the temperature control unit must be protected against liquid
ingress.
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).
No protection against corrosion
DAMAGE TO THE TEMPERATURE CONTROL UNIT
The addition of anti-corrosion agents is mandatory if salts (chlorides, bromide) have been
added to the water circuit.
Ensure that the materials used in the cooling water circuit are resistant with respect to the
cooling water. See the data sheet from page 89 in section
for information on the ma-
terials used.
Take suitable measures to maintain the warranty conditions.
For information about water quality, see www.huber-online.com.
Usage of un-filtered river or sea water as cooling water
DAMAGE TO THE TEMPERATURE CONTROL UNIT
Un-filtered river or sea water is not suitable for use as cooling water due to the contaminants.
Use drinking water of filtered river or sea water for cooling.
For information about water quality, see www.huber-online.com.
To minimize cooling water consumption, Huber temperature control units with water cooling are
equipped with a cooling water regulator. This limits the flow of cooling water to the amount re-
quired by the current load situation. If only low cooling capacity is called off, only a small amount
of cooling water is consumed. No cooling water flows when the unit is switched off.
Preparing the temperature control unit with water cooling:
The minimum pressure differential in the cooling water circuit and the recommended cooling
water inlet temperature can be found on the data sheet (from page 89 in section
).
The illustration “Wiring diagram” can be found on page 89 in section
.
Connection diagram
