Huber MPC Minichiller 280, Manual

Page: 48 / 60

Service/maintenance
OPERATION MANUAL Chapter 7
Minichiller®
V2.4.0en/09.08.21//1.30
48
Cooling* Description
Maintenance
interval
Comment
Person re-
sponsible
A/W
Check the tempera-
ture control unit for
damage and stability
Every 12 months
or after a change
of location
–
Operating
company and /
or operators
W
Check the cooling
water quality
Every 12 months
Descale the cooling water circuit
as required. Documentation on
water quality is available at:
www.huber-online.com
Operating
company and /
or operators
A/W
Exchange safety-
relevant electric and
electromechanical
components
20 years
Have the exchange only carried
out by certified personnel (such as
Huber service engineers). Please
contact Customer Support. → Page
58, section »Contact data« .
Operating
company
*A = Air cooling; W = Water cooling; U = Applicable only for Unistats
7.2.2 Replacing temperature control or coolant hoses
Replace defective temperature control and/or coolant hoses
before
turning on the temperature
control unit.
7.2.2.1 Replacing temperature control hoses
PROCEDURE

Drain the temperature control unit. → Page 42, section
»Draining externally closed applications«
.

Replace defective temperature control hoses. Observe the proper disposal. → Page 15, section
»Proper disposal of resources and consumables«
.

Reconnect your external application. → Page 31, section
»Connecting externally closed application«
.

Fill the temperature control unit with thermal fluid. → Page 39, section
»Filling and venting
externally closed application«
.

Vent the temperature control unit. → Page 39, section
»Filling and venting externally closed
application«
.

Restart the temperature control unit in normal mode.
7.2.2.2 Replacing coolant hoses
PROCEDURE

Drain the cooling water. → Page 56, section »Draining the cooling water« .

Replace the defective coolant hoses. Follow the instructions for the proper disposal. → Page 15,
section »Proper disposal of resources and consumables« .

Reconnect the temperature control unit to the building’s cooling water supply. → Page 28, sec-
tion »Temperature control units with water cooling« .

Restart the temperature control unit in normal mode.
7.2.3 Clean liquefier fins (air-cooled temperature control unit)
Manual cleaning
RISK OF BEING CUT ON THE LIQUEFIER FINS

Wear suitable cut-resistant gloves for cleaning work.

Depending on the ambient conditions, use cleaning equipment such as vacuum cleaners and/or
a hand brush/brush. Follow the local regulations when cleaning. Do not clean the liquefier fins
in a clean room with items like a brush and do not use a vacuum cleaner without an extra-fine
particle filter.
Cleaning using pointed or sharp-edged tools
DAMAGE TO THE LIQUEFIER FINS

Clean the liquefier fins using suitable cleaning appliances.