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.

Operation
11
4. Secure the unit on the transport trolley against tipping over.
5. Place loose parts, such as cables, with the unit on the transport trolley.
 The unit is ready for transport.
5.2 Initial operation
This section describes how to put the unit into operation.
NOTE
Secure the hose connections to prevent them sliding off.
Improper assembly of the hose connections may cause them to lea or slip off the
connection nozzles.
• Secure the hose connections to prevent them sliding off
• After initial operation, chec all hose connections for lea s and a secure fit
NOTE
Do not exceed the maximum filling level in the cooling water reservoir!
The maximum fill level in the cooling water reservoir must not be exceeded. When the
unit is switched off, excess water can flow bac from the external application and
overflow.
• When switching off the unit, prevent the water from flowing bac from the external
application
• Insert a stopcoc or hose clamp into the external circuit
 The unit is unpac ed.
1. Place the unit on a horizontal and firm surface.
 For good ventilation and heat emission, a distance of at least 20 cm from the
wall and adjacent equipment must be maintained.
2. Connect the unit with the mains plug to a mains power outlet.
3. Connect the hoses of the external application to be cooled to the connections
of the unit.
4. Remove the cover of the cooling water reservoir.
5. Fill the cooling water reservoir with water up to the maximum mar .
6. Close the cooling water reservoir using the cover.
7. Switch unit on at the mains switch.
 The pump starts to pump the water through the condenser and the external
application.
8. Observe the level in the cooling water reservoir and top up with water when
the level reaches the minimum mar .
 The level should always be between the minimum and maximum mar s during
operation.
 The unit is ready for operation.

Operation
12
5.3 Operation
The recirculating cooler is very user-friendly. If it is connected to an external
application, it is sufficient to switch it on. No settings are required. The recirculating
cooler is designed for continuous operation under normal conditions.
 The unit is ready for operation and connected to the external application.
 The two-way switch for the cooling capacity is set to stage 0.
1. Switch unit on at the mains switch.
 The pump starts to pump the water through the condenser and the external
application. The lower ventilator is active.
2. If you need a higher cooling capacity, switch the cooling capacity two-way
switch to stage 1.
 The second ventilator is switched on.
 The unit is in operation.
5.4 Emptying
The device must be completely emptied before it is sent to technical service or
appropriately disposed of.
In general, the device should be completely emptied before longer shutdowns or
when there is a change to the external application.
 The unit is switched off.
 The external application is disconnected from the unit.
1. Disconnect the mains plug of the unit.
2. Remove the cover of the cooling water reservoir.
3. Provide a sufficiently large collecting vessel.
4. Tilt the unit quic ly forwards over the collecting vessel.
 The water flows from the cooling water reservoir into the collection vessel
provided.
5. When the cooling water reservoir is completely empty, close it with the cover.
 The unit is emptied.
5.5 Maintenance
The recirculating cooler is maintenance-free. If the cooling capacity decreases, it is
sufficient to clean it. Proceed as described below.
NOTE
Property damage due to service and repair work not carried out by an expert!
Service and repair wor carried out by unauthorised persons may result in damage to
the unit.
• Service and repair wor may only be performed by qualified electricians
• JULABO accepts no liability for property damage caused by service and repair wor
not carried out by authorised specialist personnel
 Torx bit, size T20
 Bit holder

Operation
13
 The unit is switched off.
1. Disconnect the external application from the unit.
2. Empty the unit.
3. Remove four fastening screws each on the left and right side of the unit
[arrows left figure].
4. Carefully remove the hood upwards and disconnect the earthing cable [arrow
right figure].
5. Use a vacuum cleaner to carefully remove dust and dirt from the inside of the
unit.
6. Position the hood and connect the earthing cable [arrow right figure].
7. Mount the hood with the fastening screws.
8. Clean the unit surface with a lint-free cloth and a mild cleaning agent.
9. Vacuum the vents.
 The unit is cleaned.
5.6 echnical Service
If the unit shows faults you cannot resolve please contact our Technical Service.
JULABO Technical Service
Tel.: [phone] Option 3
Fax: [phone]
Email: Servic[email protected]

Operation
14
5.7 Warranty
JULABO provides a warranty that the device will function perfectly as long as it is
connected and used correctly and as described in the operating manual.
The warranty period is one year from the invoice date.
The following Warranty rovisions shall apply to products sold in North America by
JULABO (“Seller”) to the entity shown as buyer (“Buyer”) on Seller’s invoice.
1. Initial Warranty.
Upon Seller’s receipt of payment in full for the products and subject to Buyer’s
compliance with the terms of sale and any other agreement with Seller relating to
the products, Seller warrants to the Buyer that the products manufactured by the
Seller are free from defects in material and workmanship for a period not to
exceed two (2) years or ten thousand (10,000) hours of operation, whichever
comes first, from the date the product is shipped by Seller to Buyer (the “Initial
Warranty”).
2. EXCLUSION OF ALL OTHER EXPRESS WARRANTIES; EXCLUSION
OF ALL IMPLIED WARRANTIES.
OTHER THAN THE INITIAL WARRANTY NO OTHER EXPRESS
WARRANTIES ARE MADE. ALL IMPLIED WARRANTIES OF EVERY TYPE
AND KIND INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE
ARE EXCLUDED IN ALL RESPECTS AND FOR ALL PURPOSES. SELLER
DISCLAIMS AND MAKES NO IMPLIED WARRANTIES WHATSOEVER.
3. Exclusions.
The Initial Warranty does not include damage to the product resulting from
accident, misuse, improper installation or operation, unauthorized or improper
repair, replacement or alteration (including but not limited to repairs, replacements,
or alterations made or performed by persons other than Seller’s employees or
authorized representatives), failure to provide or use of improper maintenance,
unreasonable use or abuse of the product, or failure to follow written installation or
operating instructions. Buyer must return the product’s record of purchase to the
Seller or one of Seller’s authorized representatives within thirty (30) days of the
date the product is shipped by Seller to Buyer in order to make a claim under the
Initial Warranty. Notwithstanding anything contained herein to the contrary, all
glassware, including but not limited to reference thermometers, are expressly
excluded from the Initial Warranty.
4. Buyer’s sole remedies; Limitations on Seller’s Liability. Buyer’s sole
and exclusive remedy under the Initial Warranty is strictly limited, in Seller’s sole
discretion, to either: (i) repairing defective parts; or (ii) replacing defective parts. In
either case, the warranty period for the product receiving a repaired or replaced
part pursuant to the terms of the Initial Warranty shall not be extended. All repairs
or replacements performed by Seller pursuant to these Warranty rovisions shall
be performed at Seller’s facility in Allentown, ennsylvania, U.S.A. or at the facility
of an authorized representative of Seller, which location shall be determined by
Seller in its sole discretion; provided, however, that Seller may, in its sole

Operation
15
discretion perform such repairs or replacements at Buyer’s facility in which case
Buyer shall pay Seller’s travel, living and related expenses incurred by Seller in
performing the repairs or replacements at Buyer’s facility. As a condition precedent
to Seller’s obligation to repair or replace a product part under the Initial Warranty,
Buyer shall (i) promptly notify Seller in writing of any such defect; (ii) shall have
returned the product’s record of purchase to Seller or to one of Seller’s authorized
representatives within thirty (30) days of the date the product is delivered to Buyer;
and (iii) assist Seller in all respects in its attempts to determine the legitimacy and
basis of any claims made by or on behalf of Buyer including but not limited to
providing Seller with access to the product to check operating conditions. If Buyer
does not provide such written notice to Seller within the Initial Warranty period or
fails to return the product’s record of purchase as set forth above, Seller shall have
no further liability or obligation to Buyer therefore. In no event shall Seller’s liability
under the Initial Warranty exceed the original purchase price of the product which
is the subject of the alleged defect.
5. THE REMEDIES PROVIDED IN THE INITIAL WARRANTY ARE THE
SOLE AND EXCLUSIVE REMEDIES AVAILABLE TO THE BUYER.
NOTWITHSTANDING ANYTHING TO THE CONTRARY CONTAINED HEREIN,
AND EVEN IF THE SOLE AND EXCLUSIVE REMEDIES FAIL OF THEIR
ESSENTIAL PURPOSE FOR ANY REASON WHATSOEVER, IN NO EVENT
SHALL SELLER BE LIABLE FOR BUYER’S MANUFACTURING COSTS, LOST
PROFITS, GOODWILL, OR ANY OTHER SPECIAL, INDIRECT, PUNITIVE,
INCIDENTAL OR CONSEQUENTIAL DAMAGES TO BUYER OR ANY THIRD
PARTY AND ALL SUCH DAMAGES ARE HEREBY DISCLAIMED.
6. Assig me t. Buyer shall not assign any of its rights or obligations
hereunder without the prior written approval of Seller; provided, however, that if
Buyer is a distributor of Seller, the rights and obligations of Buyer under these
Warranty rovisions shall inure to the benefit of and be binding upon Buyer’s
customers who provide the product’s proof of purchase to Seller pursuant to the
terms set forth herein. Seller may assign any or all of its rights or obligations
hereunder without Buyer’s prior consent.
7. Gover i g Law.
The Warranty rovisions and all questions relating to their validity, interpretation,
performance, and enforcement shall be construed in accordance with, and shall be
governed by, the substantive laws of the Commonwealth of ennsylvania without
regard to its principles of conflicts of law.
8. Waiver.
Any failure of the part of Seller to insist on strict compliance with the Warranty
rovisions shall no way constitute a waiver of such right. No claim or rights arising
out of a breach of the Warranty rovisions by Buyer may be discharged in whole
or in part by a waiver of the claim or right, unless the waiver is in writing signed by
an authorized representative of Seller. Seller’s waiver or acceptance of any breach
by Buyer of any provisions of the Warranty rovisions shall not constitute a waiver
of or an excuse for nonperformance as to any other provision of the Warranty
rovisions nor as to any prior or subsequent breach of the same provision.
9. Freight.
Buyer will arrange and pay for shipping and handling charges for the unit to be
returned to the Seller. Seller will arrange and pay for shipping and handling for the
return of the unit to the Buyer.

Operation
16
5.8 Sending a unit
After consulting with our Technical Service, the unit can be returned. The unit must
be prepared accordingly for shipment.
1. Empty the unit completely.
2. Close all connections tightly with nuts and plugs.
3. ack the unit carefully and protect it from damage.
4. Mark the packaging for an upright transport of the unit.
5. Complete the online return form at www.julabo.com/support.
 The unit is ready for shipment and can be sent to JULABO Technical Service.
5.9 Disposal
When disposing of the device, the applicable country-specific guidelines must be
observed.
1. Empty the unit completely.
2. Contact an authorised disposal company for disposal of the unit.
 It is not permissible to dispose of the unit in household waste or similar
facilities intended for collecting household waste.
 The unit can be disposed of properly.