Service/maintenance
Chapter 7
OPERATION MANUAL
V2.3.0en/22.04.20//17.12
Heat Transfer Station eo
71
Cooling*
Description
Maintenance
interval
Comment
Person re-
sponsible
A/W
Check temperature
control unit for
damage and stabil-
ity
Every 12 months
or after a change
of location
–
Operating
company
and/or opera-
tors
W
Check cooling
water quality
Every 12 months
Descale the cooling water circuit
as required. Documentation on
water quality available at:
www.huber-online.com
Operating
company
and/or opera-
tors
*A = Air cooling; W = Water cooling; U = Applicable only for Unistats
7.4.2
Replacing temperature control or coolant hoses
Replace defective temperature control and/or coolant hoses
before
turning on the temperature
control unit.
7.4.2.1
Replacing temperature control hoses
PROCEDURE
Drain the temperature control unit as described on page 58 in section
.
Replace defective temperature control hoses. When disposing of them, observe page 15, section
»Proper disposal of resources and consumables«
.
Reconnect your external application as described on page 28 in section
.
Fill the temperature control unit with thermofluid as described on page 56 in section
venting externally open application«
.
Drain the temperature control unit as described on page 56 in section
.
Restart the temperature control unit in normal mode.
7.4.2.2
Replacing coolant hoses
PROCEDURE
Drain the cooling water as described on page 78 in section
.
Replace the defective coolant hoses. When disposing of them, observe page 15, section
disposal of resources and consumables«
.
Reconnect the temperature control unit to the building’s cooling water supply. Proceed as de-
scribed on page 26 in section
»Temperature control units with water cooling«
.
Restart the temperature control unit in normal mode.
7.4.3
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.