Huber tango - Clean Hat-Type Strainer (Dirt Trap) (Water-Cooled Temperature Control Unit)

Service/maintenance
OPERATION MANUAL Chapter 7
Unistat® V2.0.0en/09.06.16//15.09
86
PROCEDURE
Ventilation grille on the underside (table-top units)
Cleaning of liquefier fins at the underside when the temperature control unit is filled
DAMAGE CAUSED BY THERMAL FLUID PENETRATING THE TEMPERATURE CONTROL UNIT
 Empty the temperature control unit before cleaning the liquefier fins at the underside of the
temperature control unit.
 Switch off the temperature control unit. Turn the >Mains isolator< [36] to the “0” position.
 Disconnect the temperature control unit from the current supply.
 Drain the thermofluid from the temperature control unit. Further information on page 68, sec-
tion »Draining externally closed applications« or page 71, section »Draining externally open
applications«.
 Tilt the temperature control unit to remove the grille (if available) in front of the liquefier fins.
 Clean the liquefier fins using suitable cleaning appliances. Observe the local regulations and
ambient conditions when selecting cleaning devices.
 Make sure the liquefier fins are not damaged or deformed as this will impair the air flow.
 Re-mount the ventilation grille after cleaning work.
 Connect the temperature control unit to the power supply.
 Refill the temperature control unit with thermofluid. Further information on page 64, section
»Filling and venting externally closed application« or page 69, section »Filling and venting ex-
ternally open application«.
7.3.4 Clean hat-type strainer (dirt trap) (water-cooled temperature control unit)
Building side shut-off valves are not closed
DAMAGE BY ROOM FLOODING
 Close the building’s shut-off valves in the cooling water supply and return lines.
 For table-top models, place a collection container below the >Cooling water drain< [15] (see
connection diagram page 96, section »Annex«).
The strainer at the cooling water inlet must be inspected and cleaned on a regular basis, depend-
ing on water quality.
PROCEDURE
Table-top models:
 Switch off the temperature control unit. Turn the >Mains isolator< [36] to the “0” position.
 Disconnect the temperature control unit from the current supply.
 Close the customer’s shut-off valves in the cooling water supply and return lines.
 Place the collecting container below the >Cooling water inlet< [13].
 Remove the cooling water supply line and take out the hat-type strainer for inspection and
cleaning.
 Clean the suction strainer under running water.
 Following inspection/cleaning, reinsert the hat-type strainer and fasten the cooling water supply
line.
 Remove the collecting container from below the >Cooling water inlet< [13].
 Open the customer’s shut-off valves in the cooling water supply and return lines.
 Connect the temperature control unit to the power supply.
 Switch the temperature control unit on.
PROCEDURE
Free-standing models:
 Switch off the temperature control unit. Turn the >Mains isolator< [36] to the “0” position.
 Disconnect the temperature control unit from the current supply.
 Close the customer’s shut-off valves in the cooling water supply and return lines.
 Remove the panel around the >Cooling water inlet< [13] and >Cooling water outlet< [14]. In-
formation: Located immediately behind the >Cooling water inlet< [13] is the dirt trap.
 Carefully detach the cover (hexagonal).