Lauda UWT Series User manual

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YAWE0029
English
Translation of the original operating instructions
Read the instructions prior to performing any task!
LAUDA DR. R. WOBSER GMBH & CO. KG
Pfarrstraße 41/43
97922 Lauda-Königshofen
Germany
release 06/2018 i
replaces release 08/2016 h, 03/2010, 01/2009,
03/2006
Telephone: [phone]
Fax: [phone]
E-mail [e-mail]
Internet http://www.lauda.de
Operating instructions
UWT circulation heat exchangers
UWT 3000, UWT 6000, UWT 10000

UWT circulation heat exchangers
YAWE0029 / 29 June 2018 Prefixed safety information 3
Prefixed safety information
Before operating the equipment please read carefully all the instructions and safety
notes. If you have any questions please phone us!
Follow the instructions on setting up, operation etc. This is the only way to avoid incor-
rect operation of the equipment and to ensure full warranty protection.
Transport the equipment with care!
Equipment and its internal parts can be damaged:
by dropping
by shock.
Equipment must only be operated by technically qualified personnel!
Never operate the equipment without the heat transfer liquid!
Do not start up the equipment, if
it is damaged or leaking,
the supply cable is damaged.
Switch off the equipment and pull out the mains plug:
for servicing or repair
before moving the equipment!
Do not carry out any technical changes on the device!
Have the equipment serviced or repaired by properly qualified personnel only!
The Operating Instructions include additional safety notes which are identified by a triangle with an
exclamation mark. Carefully read the instructions and follow them accurately! Disregarding the in-
structions may have serious consequences, such as damage to the equipment, damage to property
or injury to personnel!

UWT circulation heat exchangers
4Contents YAWE0029 / 29 June 2018
Contents
Prefixed safety information ...........................................................................................................................3
Contents........................................................................................................................................................4
1Safety notes......................................................................................................................................................5
1.1 General safety notes.................................................................................................................................5
1.2 Other safety notes.....................................................................................................................................6
2Operating and functional controls.....................................................................................................................7
3Unit description.................................................................................................................................................9
3.1 Environmental conditions..........................................................................................................................9
3.2 Unit types ..................................................................................................................................................9
3.3 Principle of operation ................................................................................................................................9
3.4 Pump.........................................................................................................................................................9
3.5 Temperature display, controller and safety devices................................................................................10
3.6 Interfaces (remote socket 15N)...............................................................................................................10
3.7 Substances / materials in the liquid circuits ............................................................................................10
4Unpacking.......................................................................................................................................................11
5Preparations...................................................................................................................................................12
5.1 Siting and connection..............................................................................................................................12
5.2 Filling.......................................................................................................................................................13
5.3 Draining / frost protection........................................................................................................................14
6Starting up......................................................................................................................................................15
6.1 Mains connection ....................................................................................................................................15
6.2 Switching on............................................................................................................................................15
6.3 Adjusting the outflow pressure with the bypass valve.............................................................................16
7Maintenance...................................................................................................................................................17
7.1 Cleaning..................................................................................................................................................17
7.2 Servicing and repair ................................................................................................................................17
7.3 Spare parts ordering and rating label......................................................................................................18
8Technical data and circuit diagram.................................................................................................................19
8.1 Technical data.........................................................................................................................................19
8.2 EU conformity..........................................................................................................................................20
8.3 List of components with circuit diagram..................................................................................................21
Confirmation
Explanation of signs:
Caution:
This sign is used where there may be injury to person-
nel if a recommendation is not followed accurately or is
disregarded.

Note:
Here special attention is drawn to some aspect. May
include reference to danger.

Reference:
Refers to other information in different sections.

UWT circulation heat exchangers
YAWE0029 / 29 June 2018 Safety notes 5
1 Safety notes
1.1 General safety notes
A circulation heat exchanger is used to cool and circulate heat transfer liquids as specified. This leads to
hazards due to the emission of heat transfer liquid and / or of cooling liquid and to general hazards due
to the use of electrical energy.
The user is largely protected through the application of the appropriate standard specifications.
It is not possible to cover all possibilities; they remain largely within the responsibility and the judgement
of the user.
The unit must only be used as intended and as described in these operating instructions. This includes
operation by suitably instructed qualified personnel.
The units are not designed for use under medical conditions according to DIN EN 60601-1 or
IEC 601-1!
Classification in accordance with EMC requirements
Device
Immunity
Emissions class
Customer power
supply
Circulation heat
exchangers
UWT 3000, UWT 6000,
UWT 10000
Type 2 in accordance
with
DIN EN 61326-1
Emissions Class B
in accordance with
CISPR 11
Worldwide
No limitation
For the USA only:
Instructions for Class A digital devices
“This equipment has been tested and found to comply with the limits for Class A digital device, pursuant
to Part 15 of the FCC (Federal Communication Commission) Rules. These limits are designed to pro-
vide reasonable protection against harmful interference when the equipment is operated in a commer-
cial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not
installed and used in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference
in which case the user will be required to correct the interference at his own expense.”
“This device complies with Part 15 of the FCC (Federal Communication Commission) Rules. Operation
is subject to the following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause undesired
operation.”
For Canada only:
“This Class A digital apparatus complies with Canadian ICES-003” (ICES = Interference Causing
Equipment Standards).
« Cet appareil numérique de la classe A est conforme à la norme NMB-003 du Canada ».

UWT circulation heat exchangers
6Safety notes YAWE0029 / 29 June 2018
1.2 Other safety notes
Connect the unit only to grounded mains power (PE).
Use suitable hoses.
Protect tubing with hose clips against slipping off. Prevent kinking of tubing!
Check tubing from time to time for possible material defects!
Allow for expansion of the heat transfer liquid at elevated temperatures!
Always pull out the mains plug before cleaning, maintenance or moving the device!
Repairs must be carried out by properly qualified personnel only.
Values for temperature control and indicating accuracy apply under normal conditions according to
DIN 12876. High-frequency electromagnetic fields may under special conditions lead to unfavoura-
ble values. This does not affect the safety!

UWT circulation heat exchangers
YAWE0029 / 29 June 2018 Operating and functional controls 7
2 Operating and functional controls
Front of UWT 3000
Front of UWT 6000 and UWT 10000
Filling nozzle for heat transfer liquid
Controller with temperature display and
operating keys
Mains switch with indicating lamp
Red warning lamp for overtemperature
Yellow warning lamp for low level
Pressure indication
(only at UWT 6000 and UWT 10000)
Light-emitting diodes:
K 1: Lights when cooling water valve "open"
K 2: Lights for overtemperature
Level indication

UWT circulation heat exchangers
8Operating and functional controls YAWE0029 / 29 June 2018
Back of UWT 3000
Back of UWT 6000 and UWT 10000
Laboratory circuit
- return pipe for load
Laboratory circuit
- return pipe for load
Primary circuit (external)
- inlet of coolant
Primary circuit (external)
- return flow of coolant
Remote socket 15N with alarm outputs
and remote switch-on
Mains cable
Drain tap
Rating label
Laboratory circuit
- return pipe for load
Laboratory circuit
- flow pipe for load
Primary circuit (external)
- inlet of coolant
Primary circuit (external)
- return flow of coolant
Remote socket 15N with alarm outputs
and remote switch-on
Mains cable
Drain tap
Rating label