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Service/maintenance
Chapter 7
7.4
OPERATION MANUAL
Maintenance
Cleaning/maintenance while the temperature control unit is operating
MORTAL DANGER FROM ELECTRIC SHOCK
 Stop an ongoing temperature control process.
 Disconnect the temperature control unit from the power supply by turning the >Mains switch<
[37] on the temperature control unit to “0”.
 Also disconnect the temperature control unit from the current supply.
Carrying out maintenance work not described in this operation manual
DAMAGE TO THE TEMPERATURE CONTROL UNIT
 For maintenance work not described in the operation manual, contact Peter Huber
Kältemaschinenbau GmbH.
 Maintenance work not described in this operation manual is reserved for qualified specialists
trained by Huber.
 Only perform the following maintenance work on the temperature control unit yourself.
7.4.1
Monitoring interval
Function check and visual inspection
Cooling*
Description
Maintenance
interval
Comment
Person responsible
L/W
Visually inspect
hoses and hose
connections
Prior to switching
on the temperature control unit
Exchange leaking hoses and hose
connections prior to switching on the
temperature control unit.
Responsible
body and/or
operators
L/W
Inspection in accordance with the
F-Gas Directive
In accordance
with the F-Gas
Directive
See page 15, section »Temperature
control devices with fluorinated
greenhouse gases/refrigerants«
Responsible
body
L/W
Inspect power
supply cable
Prior to switching
on the temperature control unit
or on relocation
Do not start-up the temperature control unit if the power cable is damaged.
Qualified
electrician
(BGV A3)
L
Clean air inlet grille
As required
Clean the perforated sheet of the
temperature control unit with a damp
cloth
Responsible
body
L/W
Thermal fluid
inspection
As required
L
Check liquefier fins
As required, after
3 months at the
latest
See page 58, section »Clean liquefier
fins (air-cooled temperature control
unit)«
Responsible
body and/or
operators
W
Check suction
strainer (dirt trap)
As required, after
3 months at the
latest
See page 58, section »Clean hat-type
strainer (dirt trap) (water-cooled
temperature control unit)«
Responsible
body and/or
operators
L/W
Overtemperature
protection (OT) functional check
Every 3 months or
after changing the
thermal fluid
See page 40, section »Testing overtemperature protection for functionality«
Responsible
body and/or
operators
L/W
Inspect temperature control unit for
damage and stability
Every 12 months
or after a change
of location
W
Inspect water
quality
Every 12 months
Responsible
body and/or
operators
Responsible
body and/or
operators
Descale the cooling water circuit as
required. Documentation on water
quality available at: www.huberonline.com
Responsible
body and/or
operators
*L = Air cooling; W = Water cooling; U = Applicable only for Unistats
V1.3.0en/12.05.15//14.06
Liability for errors and misprints excluded.
BFT®
57