Julabo AWC100 User manual

Operating Manual
Compact Recirculating Cooler AWC100
1.950.4820.us.V05 11/2020
JU ABO USA, Inc.
84 Marcon Boulevard
Allentown, PA 18109
Phone: [phone]

2
Legal
JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone [phone]
Fax. [phone]
[e-mail]
www.julabo.us
The content of this operating manual is protected by copyright. Information,
including texts, images, and other contents may not be reproduced,
distributed, transmitted, stored or otherwise used in any form without prior
explicit written consent.
Illustrations in this operating manual are for illustrative purposes and are
not necessarily displayed to scale.
The rights to the operating manual and its contents are exclusively held by
JULABO GmbH.

Table of contents
1 Foreword ...................................................................................................................................................... 4
2 Intended use ................................................................................................................................................ 4
3 Safety ............................................................................................................................................................ 5
3.1 General safety instructions, operating company ...................................................................................... 5
3.2 General safety instructions, operator ....................................................................................................... 5
3.3 General safety instructions for bath fluids ................................................................................................ 6
3.4 Safety symbols ......................................................................................................................................... 6
3.5 arnings .................................................................................................................................................. 6
3.6 Symbols used ........................................................................................................................................... 7
4 Description ................................................................................................................................................... 7
4.1 Operating and functional elements .......................................................................................................... 8
4.2 Technical data .......................................................................................................................................... 9
4.3 Bath fluids ............................................................................................................................................... 10
4.4 Recommended hoses ............................................................................................................................ 10
5 Operation .................................................................................................................................................... 10
5.1 Transport ................................................................................................................................................ 10
5.2 Initial operation ....................................................................................................................................... 11
5.3 Operation ................................................................................................................................................ 12
5.4 Emptying................................................................................................................................................. 12
5.5 Maintenance ........................................................................................................................................... 12
5.6 Technical Service ................................................................................................................................... 13
5.7 arranty ................................................................................................................................................. 14
5.8 Sending a unit ........................................................................................................................................ 16
5.9 Disposal .................................................................................................................................................. 16

Foreword
4
1 Foreword
Congratulations!
You have made an excellent choice.
JULABO would like to thank you for the trust you have placed in our company and
products.
This operatin manual will help you become acquainted with the use of our units.
Read the operatin manual carefully. Keep the operatin manual handy at all
times.
If you have any questions about operation of the device or the operatin manual,
please call us, write us an email or send a fax.
Contact:
JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone: [phone]
Fax: [phone]
Email: [e-mail]
internet: www.julabo.us
2 Intended use
This section defines the purpose of the unit so that the operator can operate the
unit safely and avoid misuse.
Recirculatin coolers are desi ned for temperature control of liquid media. An
external coolin circuit is connected to the connections, usin which media can be
constantly cooled.
The recirculatin coolers are not suitable for direct temperature control of food or
other items intended for human consumption, pharmaceutical products, or medical
products. Direct temperature control means an unprotected contact of the material
to be temperature-controlled with the bath fluid.
The units are not suitable for use in a potentially explosive environment.
Any other uses not listed here are not considered as intended.

Safety
5
3 Safety
3.1 General safety instructions, operating company
The products of JULABO GmbH are safe when installed, operated, and
maintained according to the generally accepted rules of safety This chapter
explains the potential hazards that can arise in conjunction with operation of the
recirculating cooler and describes the most important safety measures for
eliminating these hazards when possible
• The operating company is responsible for the qualifications of the operating
personnel
• The operating company ensures that the operating personnel have been
instructed in the handling of the recirculating cooler
• The operators must be trained on a regular basis on the hazards that occur
during their activities and on measures for mitigating these hazards
• The operating company must ensure that the persons entrusted with
operation, installation and maintenance have read and understood the
operating manual
• When using hazardous materials or substances that may become hazardous,
only persons qualified to handle these substances and the recirculating cooler
may operate the recirculating cooler
3.2 General safety instructions, operator
It is important that you follow all safety instructions in order to avoid personal injury
and property damage These instructions supplement workplace safety
regulations
• The unit may be connected to protected earth (PE) mains power outlets only
• The mains plug serves as a safe protective separation from the power supply
network and must always be freely accessible
• Do not attempt to use the unit if the mains cable is damaged
• Install the unit on an even surface on a supporting layer made of non-
combustible material
• Be sure to read the operating manual before initial operation
• Use tubing suitable for temperature control purposes
• Secure hose connections against slipping
• Avoid kinking the tubing
• Regularly check tubing for material fatigue, such as cracks
• Never put a damaged or leaking unit into operation
• Before performing service or repair tasks or transporting the unit, switch the
unit off and remove the power plug from the socket
• Completely drain the unit before transporting it
• Switch off the unit and disconnect the mains plug before carrying out any
cleaning work
• Transport the unit carefully
• Shaking or falls may damage the inside of the unit
• Observe safety labels
• Do not remove safety labels
• Service and repairs may be performed by authorised expert personnel only
A

Safety
6
3.3 General safety instructions for bath fluids
Bath fluids must meet a variety of requirements The following safety instructions
must be observed to guarantee safe operation in the long term
Please note when using bath fluids:
• Due to its high lime content, hard water is not suitable as a bath fluid as it can
lead to premature calcification of the unit
• Water containing iron can lead to the formation of rust, even on stainless steel
components
• Chlorinated water can lead to pitting corrosion
• Distilled and deionised water can also lead to corrosion of stainless steel
components
3.4 Safety symbols
There are safety symbols included with the device, which should be attached to
the device before initial operation
Safety symbols Description
Warning of a danger zone Note operating manual
Read operating manual before switching on
3.5 Warnings
The operating manual contains warnings intended to increase safety when
handling the unit The general warning sign, consisting of an isosceles triangle
enclosing an exclamation mark and displayed in signal colours, precedes the
signal words The meaning of the danger is classified in conjunction with a signal
word
CAUTION
This signal word designates a danger with a low level of risk which, if it not prevented,
may result in minor to moderate injuries
WARNING
This signal word designates a danger with a medium level of risk which, if it not
prevented, may result in death or serious injuries
DANGER
This signal word designates a danger with a high level of risk which, if it not prevented,
will result in death or serious injuries

Description
7
NOTE
This signal word designates a possibly harmful situation. If it is not avoided, the system
or objects in its vicinity may be damaged.
3.6 Symbols used
Various symbols are used throughout this manual to aid reading comprehension.
This list describes the symbols used.
The list describes the symbols used in the manual:
 Tool required for a following procedure
 Prerequisite for the following procedure
. Action steps are numbered consecutively
 The symbol shows an intermediate result for individual action steps
 The symbol shows the final result of a procedure
4 Description
The recirculating cooler AWC 00 can be used as a cooling unit for water in closed
circuits.
A pump delivers the cooling water via the cooling water outlet into the external
circuit and cools the connected application. The cooling water flows back into the
recirculating cooler via the cooling water inlet. Heat is permanently extracted from
the flowing liquid in the recirculating cooler. The water temperature depends on
the ambient temperature and must not exceed 40 °C.

Description
8
4.1 Operating and functional elements
The following figure shows the operating and functional elements and their
position on the unit.
Fig. 1: Operating and functional elements
1 Handle
2 Cooling water reservoir cover
3 Hose connection, cooling water inlet
4 Cooling capacity two-way switch
Hose connection, cooling water outlet
6 Level indicator, cooling water reservoir, min/max
7 Mains switch
8 Fuse
9 Mains connection

Description
9
4.2 Technical data
The table contains the technical data of the unit. It refers to the rated voltage and
rated frequency as well as to an ambient temperature of 20°C.
Technical data
Wor ing temperature range °C +20 … +40
Cooling capacity depending on the temperature
differential between the return line and ambient
temperature
°C 20 15 10 5
Stage 0 W 400 320 220 120
Stage 1 W 550 440 300 180
Circulating pump
Flow rate, max.
Pressure, max.
l/min
bar
3.5
0.49
Sound level at 1 m distance db (A) 55
Filling volume, reservoir l 0.9
Dimensions (WxHxD) cm 20x34x30
Protection class according to EN 60 529 IP 21
Permissible ambient temperature range °C 5 … 40
Weight g 11
Mains connection V/Hz 100 … 230/50-60
Current consumption (230 V) A 1
Environmental conditions according to IEC 61 010-1:
• For indoor use only
• Up to 2000 m above sea level
• Ambient temperature +5 … +40 °C
• Maximum relative humidity 80 % for temperatures up to 31 °C, decreasing
linearly to 50 % relative humidity at a temperature of 40 °C
• Permissible voltage deviation ±10 %

Operation
10
4.3 Bath fluids
JULABO recommends using suitable bath fluid to ensure a long device life-time.
In particular for low temperatures, the permissible viscosity specified in the
operating manual may not be exceeded.
Selection of the bath fluid must ensure that the flash point of the bath fluid is never
exceeded when it comes into contact with the ambient air.
NOTE
No liability accepted for usage of bath fluids that are not suitable!
Unsuitable bath fluids that are not approved by JULABO can damage the water bath.
• Use bath fluids that are recommended by JULABO
• Before filling, chec the parts that are in contact with the medium for compatibility
with the bath fluid.
• Consult JULABO before using a bath fluid other than the recommended one.
The unit is suitable for the following bath fluids:
• Softened/decalcified water, temperature range +5 … +80 °C
4.4 Recommended hoses
The hoses listed in the table are recommended for the unit. These can be ordered
from JULABO.
Order number Designation Inner diameter
8930008 1 m CR hose 8 mm
8930010 1 m CR hose 10 mm
5 Operation
5. Transport
This section describes how to transport the unit safely.
CAUTION
Risk of injury due to the unit tipping over!
An unsecured unit may tip over during transport and cause injury.
• Secure the unit against tipping over and falling during transport
• Secure loose parts against falling during transport
• Transport the unit in an upright position using a suitable means of transport
 The unit is switched off and drained.
 A suitable transport trolley is ready.
1. Disconnect the mains plug of the unit.
2. Close the cooling water reservoir using the cover.
3. Place the unit upright and centrally on the transport trolley.