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Mounting and Servicing Instructions 
AKO   Temperature Regulator selfactuated 
 

 

AKO Regelungstechnik GmbH & Co KG 

Friedrich-Sertürner-Straße 14 • D-51377 Leverkusen • Tel.: +49 (0) 214 / 840599-0 • Fax: +49 (0) 214 / 840599-29 

eMail: [email protected] • Web: http://www.ako-regelungstechnik.de 

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1. General Information and Safety Instructions 

 
Regulations, guidelines, standards etc. listed in these mounting and servicing instructions 
correspond to the level of information available at the time of preparation and are not 
subject to an updating service. They must be applied by the user on his own responsibility 
in their  respective latest valid version. 
They are generally binding on transport, storage, installation, start-up, operation, 
maintenance and repair. 
In case of any difficulties, which cannot be solved by means of these mounting and  
servicing instructions, please contact either the supplier or manufacturer. 
Handling and all work must be carried out by expert personnel or all activities must 
be supervised and checked. It is the owner’s responsibility to define areas of  
responsibility and competence and to monitor the personnel. 
In addition, current regional safety requirements must be applied and observed when 
taking the fittings out of service as well as when maintaining and repairing them. 
For appropriate operation, make sure that the temperature regulator is only used in 
applications where the operating pressure and temperatures do not exceed the  
operating values based on the valve sizing data submitted in the order. 
Note that the manufacturer does not assume any responsibility for damage caused 
by external forces or any other external influences. 
The manufacturer reserves the right to introduce technical modifications and  
improvements at any time. 

The controllers meet the requirements of the EC Machinery Directives 2006/42EG. For 
regulators that are marked with a CE mark, declaration of conformity is the information about 
the applied conformity assessment procedures. The declaration is available on request

 

These mounting and servicing instructions comply with the requirements of EU Directives. 

Note! 

The non-electric actuators and valves do not have their own potential ignition 
source according to the ignition risk assessment stipulated in EN 13463-1:2001, 
Section 5.2, even in the rare incident of an operating fault. Therefore, they do 
not fall within the scope of Directive 94/9/EC. 
For connection to the equipotential bonding system, observe the requirements 
specified in EN 60079-14:1977 (VDE 0156 Part 1), section 6.3. 

 
2 . Notes on possible dangers 
 

2.1 Significance of symbols 

 

 

Warning of general danger 

Note ! 

 

            General mounting, start-up and maintenance information 

 

 

2.2 Explanatory notes on safety information 

 

In these mounting and servicing instructions dangers, risks and items of safety 

information are highlighted to attract special attention. 
Information marked with the above symbol and “ATTENTION” describe practices, a failure 
to comply with which can result in serious injury or danger of death for users or third parties 
or in material damage to the system or the environment. It is vital to comply with these 
practices and to monitor compliance. 

Summary of Contents for 226.0120 Series

Page 1: ...9 0 Fax 49 0 214 840599 29 eMail info akomail de Web http www ako regelungstechnik de Updated 08 03 2017 Data subject to change without notice AKO Three Way Temperature Regulator with interior Thermos...

Page 2: ...es on safety information 3 3 Scope of applications 4 4 Operation principles 5 5 Technical data 5 5 1 Regulating Valve 5 5 2 Wax Thermostat 5 5 3 Dimensions 6 5 4 Marking 6 6 Transport and storage 6 7...

Page 3: ...ing data submitted in the order Note that the manufacturer does not assume any responsibility for damage caused by external forces or any other external influences The manufacturer reserves the right...

Page 4: ...ats require no auxiliary energy whatsoever Refer to the data sheet for applications limits on use and possibilities Certain media require or preclude the use of special materials The valves are design...

Page 5: ...the change in temperature of the medium flowing through The descriptions A B and C have been cast on the housing of the thermostat The thermostats can be installed in every position 5 Technical Data...

Page 6: ...0 226 0120 050 226 0121 050 50 165 102 20 150 135 165 225 125 4x18 1 17 0 17 0 226 0120 065 226 0121 065 65 185 122 20 165 116 146 254 145 4x18 2 25 0 26 0 226 0120 080 226 0121 080 80 200 138 22 171...

Page 7: ...sea water chemical vapours special constructions or protective measures are recommended Before installing the regulating valve rinse and clean the system otherwise the cone seat area will be damaged a...

Page 8: ...t during automatic operation If the thermostat fails the control valve can be used as a manually operated three way valve via the emergency manual adjustment and therefore can be set in any position u...

Page 9: ...erdimensioned recalculate dimensioning of control valve pressure loss of cooler too high reduce pressure difference between port B and C Reasons for control temperature being too low the temperature r...

Page 10: ...at with different temperature range has been fitted replace the type label by a new one showing the correct 12 3 Testing the function of the manual override open lock nut pos 10 turn the adjustment bo...

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