Tc 3. Preliminary Remarks - ThermoKey AFS Manuel Technique

ThermoKey Heat Exchange Solutions

TC 3. Preliminary Remarks

ThermoKey equipment needs to be properly installed, operated and maintained.
Documentation of the equipment used, including drawing, technical data sheet and the present manual should be kept
on record: ThermoKey strongly recommends to study this manual carefully and, importantly, to make it available for the
personnel who installs, operates and maintains the equipment.
In order to achieve a long, trouble-free and safe operation, it is necessary to establish an operating plan including a
schedule of regular inspection, monitoring and maintenance. All inspections, maintenance and monitoring actions should
be recorded in a cooling system logbook. Operating and maintenance instructions published here can be used as a guide
to achieve these goals.
In the unlikely case that you may have some problem not contemplated in this manual or that some information is not
completely clear, don't hesitate to contact ThermoKey. Please make sure in advance, that you have checked the Installation
and Maintenance Manual of the remote air-cooled unit.
ThermoKey will not be in any way responsible and the product warranty will no longer be valid if these instructions are
not observed or the units are not used correctly.
TC 3.1 AUTHORIZED PERSONNEL
Operation, maintenance and repair of this equipment should be undertaken only by authorized and qualified personnel.
All such personnel should be thoroughly familiar with the equipment, associated systems and controls and the procedures
set herein and in other relevant manuals. Proper care, procedures and tools must be used in handling, lifting, installing,
operating and repairing of this equipment to prevent personal injury and/or property damage.
TC 3.2 MECHANICAL SAFETY
Mechanical safety of the equipment is in accordance with the requirements of the EU machinery directive.
§ §
Do not walk or place heavy objects on the ramps, racks, pipelines.
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Also, please read the Installation and Maintenance Manual of the remote air-cooled unit on which the adiabatic system
§ §
is installed.
TC 3.3 ELECTRICAL SAFETY
No service work should be performed on or near the fans, unless motors are electrically isolated.
§ §
Before proceeding with electrical maintenance on a fan, make sure that repair switch is open and padlocked.
§ §
Before proceeding with electrical wiring, make sure that power line circuit is open and Box main switch is open and padlocked.
§ §
TC 3.4 LOCAL REGULATIONS
Installation and operation of cooling equipment may be subject to local regulations, such as establishment of risk
§ §
analysis. Ensure that regulatory requirements are consistently met.
TC 3.5 NOTES
The manufacturer reserves the right to make any modifications it deems necessary to the manual at any time.
§ §
The total or partial reproduction of this manual is strictly prohibited without the manufacturer's written authorization.
§ §
For the Conditions of Guarantee, refer to the conditions specified in the order confirmation. Any kind of intervention
§ §
must be agreed in advance with ThermoKey Spa. Failure to do so will render the Conditions of Guarantee null and void.
09 MT TC R AFS EN 03 2018
For any other information please examine the Installation and Maintenance Manual of the remote air-cooled unit on
§ §
which the adiabatic system is installed.
ThermoKey is not responsible for any actions caused by incorrect adopting of manual's instructions, that could induce
§ §
to physical harm or damage to a person.
TC 3.6 ANTI LEGIONELLA CERTIFICATE
TÜV Sud Laboratory certifies that AFS carries no danger in correlation with the risk of leggionnaires disease.
§ §
Industrie
TÜV SÜD Service GmbH · Ridlerstrasse 65 · 80339 Munich · Germany
Statement for the "AFS" Air Fresh System, Thermokey adiabatic system,
in correlation with legionella bacterium growth
Basis and requirement
The company Thermokey has developed a system on
"V-Dry coolers" and/or "V-Condensers" to work with an adiabatic system.
"AFS" description from Thermokey: "The method employed makes use of adiabatic cool-
ing with low water consumption by means of special nozzles developed to work with very
high water pressures. The physical phenomena of the adiabatic cooling consist in creat-
ing an even diffusion of micro drops of water (Misting effect) through which is passing a
current of air that will be cooled by the evaporation of the water."
For description and use of Thermokey´s Air Fresh System, refer to "AFS Instruction
Manual".
Based on this information a statement for the hazard of legionnaires disease should be
provided.
Evaluation
Water side:
The quality of the water supplied to the adiabatic system is tap water (according drinking
water regulation). The special nozzles in the "AFS" combined with the high pressure of
the water produce micro drops that are completely evaporated by the flow of air without
leaving residues of water on the heat exchanger coils; no water is present in equipment
and above all on the discharge of the fans or on the ground.
Water is present in the water distribution nozzles only during the operation of the "AFS",
the water distribution nozzles are emptied each time the "AFS" is not in use.
Taking this into account, there could be no legionella bacterium growth.
Air side:
The air inlet from the unit is going back to the ambient and is not used anyway for
supplying air. Therefore no risk can be seen during operation.
Conclusion
With this "AFS" there is no standing water during continuous operation. Working accord-
ing to the instruction manual we can state that Thermokey "Air Fresh System" carries no
danger in correlation with the risk of legionnaires` disease.
Refrigeration
i.A. Peter Schnepf
Headquarters: Munich
Trade Register: Munich HRB 96 869
MT TC R AFS EN 03 2018
Technical Manual TC Instruction and technical data
Date: 14.05.2009
Our reference:
IS-TAK2-MUC/ps
Document:
AFS Thermokey 090514.doc
This document consists of
1 Page
Page 1 of 1
Expert for water chemistry
Dr. Gerhard Besl
TÜV SÜD Industrie Service GmbH
Telefon: +49 89 5190-3165
Supervisory Board: Center of Competence for
Telefax: +49 89 5155-1069
Dr.-Ing. Manfred Bayerlein (Chairman) Refrigeration and Air Conditioning
Email: kaelte@tuev-sued.de
Board of Management: Ridlerstrasse 65
www.tuev-sued.de
80339 Munich
Dr. Peter Langer (Spokesman)
Germany
Dipl.-Ing. (FH) Ferdinand Neuwieser
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