Huber Unichiller 400T, Руководство по эксплуатации

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Service/maintenance
OPERATION MANUAL Chapter 7
Unichiller®
V2.3.0en/07.06.19//17.12
76
Identify the position of the ventilation grille, usually located on the front. With some temperature
control units, the ventilation grilles on the side wall, rear or on the underside (table units) of the
temperature control unit.
PROCEDURE
Ventilation grille on the front/rear or on a side wall

Turn off the temperature control unit.

Disconnect the temperature control unit from the power supply.

Remove the ventilation grille to create unhindered access to the liquefier fins.

Clean the liquefier fins using suitable cleaning appliances. Observe the local regulations and
ambient conditions when selecting cleaning appliances.

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.

Turn on the temperature control unit.
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 85, section »Annex« ).
The strainer at the cooling water inlet must be inspected and cleaned on a regular basis, depend-
ing on water quality.
PROCEDURE
Free-standing models:

Turn off the temperature control unit.

Disconnect the temperature control unit from the power 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.

Place a collecting container below the >Cooling water inlet< [13].

Carefully detach the cover (hexagonal).

Remove and clean the metal strainer located below.

Clean the metal strainer under running water.

Re-insert the metal strainer after cleaning work.

Carefully fasten the cover (hexagonal).

Remove the collecting container from below the >Cooling water inlet< [13].

Re-mount the panel around the >Cooling water inlet< [13] and >Cooling water outlet< [14].

Open the customer’s shut-off valves in the cooling water supply and return lines.

Connect the temperature control unit to the power supply.

Turn on the temperature control unit.
We also provide service training. Please contact the Customer Support. The telephone number can
be found on page 84, section »Contact data« .
7.3.5 Emergency stop switch (optional): Function test
Important: Perform the function test only when the temperature control unit is not controlling the
temperature. All poles of the temperature control unit are switched off immediately during a
function test!
Immediately take the temperature control unit out of use if the function test doesn’t turn off the
temperature control unit. Please contact Customer Support, if this is the case. The telephone
number can be found on page 84, section »Contact data« .