Cetetherm AQUATANK 316Ti User manual

2018-06-01
Installation and maintenance instructions
AquaTank, stainless steel

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
3
Content
1General ..................................................................................................................................4
1.1 General information...................................................................................................................................4
1.2 Intended use..............................................................................................................................................4
1.3 Misuse.......................................................................................................................................................4
1.4 Regulations and standards........................................................................................................................4
1.5 Health and safety instructions ...................................................................................................................4
Warning against your own conversions and changes: For safety reasons, you must not convert or modify the
vessel yourself. The guarantee covering the vessel will inevitably lapse if you do................................................5
1.6 Water quality..............................................................................................................................................5
1.6.1 Water hardness....................................................................................................................................5
1.6.2 Free chlorine ........................................................................................................................................5
1.7 Warranty....................................................................................................................................................5
2Installation.............................................................................................................................6
2.1 Siting..........................................................................................................................................................6
2.1.1 Space required.....................................................................................................................................6
2.1.2 Substrate/foundation/load-bearing capacity.........................................................................................6
2.2 Connection ................................................................................................................................................6
2.2.1 Electrical connection ............................................................................................................................6
3Commissioning & Operation................................................................................................7
3.1 Maintenance..............................................................................................................................................7
4Design data ...........................................................................................................................8
4.1 Ratings ......................................................................................................................................................8
4.2 Material......................................................................................................................................................8
4.3 Insulation characteristics...........................................................................................................................8
5Dimensions and technical data............................................................................................9
5.1 AQATANK 316 Ti ......................................................................................................................................9
5.2 AQUATANK 316 HC Ti .......................................................................................................................... 10
6Tap water heating capacity ................................................................................................11
6.1 Characteristics........................................................................................................................................ 11
7Warranty..............................................................................................................................12
7.1 Exclusion factors: ................................................................................................................................... 12
7.2 Spare parts............................................................................................................................................. 12
7.3 How to contact Cetetherm...................................................................................................................... 12
8Connection of 1 tank/2 tanks to a Tap Water System.......................................................13
9Neodul-Installation..............................................................................................................14
10 Connections........................................................................................................................17
10.1 AQT316Ti............................................................................................................................................... 17
10.2 AQT316 TiHC......................................................................................................................................... 17

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1 General
1.1 General information
Cetetherm owns the copyright to these instructions. Details, pictures and drawings contained in these
instructions may not be reproduced, distributed or sold for competition purposes or disclosed to others without
authorisation.
Cetetherm reserves the right, without prior notification, to make technical changes compared with the
illustrations and information contained in these instructions, should it necessary for improving the AquaTank.
These instructions provide important information that is necessary to ensure that the storage vessel is both
reliable and safe. The operating/installation personnel must have access to these instructions. Therefore,
please make sure that a copy of these instructions is available in plenty of time.
If the AquaTank is sold to a third party, or there is a change of owner, please pass on these instructions to the
new owner. Please let us have the name and address of the new owner for the unlikely event that we need to
contact them regarding the safety of the installation.
Read these instructions carefully before installing the equipment. Pay particular attention to the safety
information.
1.2 Intended use
The Cetetherm AquaTank is a hot water storage vessel and is used to store potable water for normal use in
potable water supply systems and is suitable for group or central drinking water supplies.
Using the equipment as intended also includes following these operating instructions, the maintenance
conditions and design data specified.
1.3 Misuse
Any use that exceeds the use described above is misuse. The manufacturer is not liable for damage resulting
from misuse. The operator bears the risk. Please keep the order data/article numbers of the AquaTank handy
so that we can deal with your needs and spares orders promptly.
1.4 Regulations and standards
Any use that exceeds the use described above is misuse. The manufacturer is not liable for damage resulting
from misuse. The operator bears the risk. Please keep the order data/article numbers of the AquaTank handy
so that we can deal with your needs and spares orders promptly.Safety information
The AquaTank must be connected according to the common regulations and standards of your country.
Each hot water storage system or storage vessel has to be equipped with safety devices.
Controls and instruments or safety devices are not included in the delivery of the cylinder.
Do not place any shut-off between the safety device and the cylinder.
The reliability of the safety device has to be documented by a certificate.
Keep the blow-off pipe / tundish always open. Blow-off pipes and drip pipes must be arranged so that nobody is
exposed to the hot water if it escapes.
Manually open every now and then the safety device to test its function.
1.5 Health and safety instructions
The hot water storage tank is state of the art and reliable in operation. However, it can be dangerous if it is
incorrectly operated or maintained by unqualified personnel or is not used as intended.
Anyone responsible for its operation and maintenance must have read and understood the health and safety
information.
The vessel, particularly its safety equipment, may only be operated and maintained by people (qualified people)
who are fully conversant with it and have been informed of the dangers. If you are not sure about something,
ask your manager or the system supplier or manufacturer.
The relevant regulations and also the other generally recognised rules must be observed.
Never work in a way that prejudices the safety of the system.
In principle, no safety devices should be removed, taken out of service or adjusted without knowledge of the
common regulations and standards and a qualified person in attendance. The safety devices protects against
serious physical damage (burns, electric shock, etc.).
If damage to the system or defects is recognised, particularly those affecting the safety devices, expansion
tanks, etc. and if unusual noises or smells develop, switch the system off and inform your supplier.
In principle any service and cleaning work on the storage vessel must only be done when it is stationary.

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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The vessel must be protected against unauthorised operation.
Contact with hot parts of the cylinder can cause serious burns. Avoid any contact with hot parts of the vessel.
Installer will have to adapt safety system to local rules and evolution of these rules :
In France diameter of safety valve must correspond to diameter of cold water inlet pipe : 2”.
Eventual example of design rules of safety valves in Germany concerning sizes of pressure relief valves:
nominal capacity of vessel in litre
max. heating load in kW
min. diameter
up to 200
75
DN 15
above 200 to 1000
150
DN 20
above 1000 to 4000
250
DN 25
Warning against your own conversions and changes: For safety reasons, you must not convert or
modify the vessel yourself. The guarantee covering the vessel will inevitably lapse if you do.
1.6 Water quality
1.6.1 Water hardness
By nature, drinking water contains alkaline earths and also calcium and magnesium components that are the
main cause of “water hardness”. The temporary component of water hardness, carbonate hardness, is the part
that is precipitated as boiler scale when the water is heated and is deposited on the surfaces of that water
storage systems, increasing with increasing temperature and according to the “lime-carbon dioxide balance” of
the water.
Water with high lime content (total hardness of 2.5-3.8 mmol/1 and exceeding) built up very quickly scales on
the immersion heater. This causes capacity losses and breakdowns of the immersion heater.
If necessary, consult the water utility and take into account experience with lime scale deposits in the
catchment area concerned.
1.6.2 Free chlorine
Naturally water from the mains contains free chlorine Cl¯. Free Cl¯ can cause pit corrosion if it is accumulated
under scaling and fouling. Periodically inspections of the inner vessel and if necessary cleanings must be
carried out.
The content of free chlorine in water at 60°C should not exceed 120mg/l.
1.7 Warranty
If no trade term is specifically agreed the warranty shall be according to the ORGALIME S 2000 (General
conditions for the supply of mechanical, electrical and electronic products, Brussels, August 2000)

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2 Installation
Please safeguard the storage tank during unloading and transportation against tilting. Do not use inappropriate
transport equipment and avoid damages by crushes and whams.
The vessel is very heavy and has a high centre of gravity. Please transport it carefully and only use suitable
equipment, e.g. forklift, crane, lifting truck.
NB: please check the AquaTank delivered for completeness and possible damage in transit before transferring
it to the place where it is to be installed.
2.1 Siting
Avoid siting in damp locations and places below zero °C.
Because of the risk of corrosion avoid the contact of non-alloy steel with the stainless vessel (e.g. supports,
pipe work and tools etc. made of mild steel).
While working close to the stainless steel vessel and the insulation do not expose it to flying or grinding sparks.
Important: Any work to which a requirement of the common regulations and standards applies must be carried
out with suitable materials and in a workmanlike manner.
The AquaTank may only be installed and commissioned by a person holding a certificate for the installation of
unvented hot water storage systems. This person is then responsible for the correct installation, connection and
the equipment.
2.1.1 Space required
Install the AquaTank in a room that is protected from frost, flooding and is adequately ventilated. The maximum
admissible temperature in the room where the system is installed must not exceed 40°C. Make sure that there
is a adequate space between the AquaTank and the wall and other components to allow maintenance and
inspection (minimum 60 cm).
2.1.2 Substrate/foundation/load-bearing capacity
The load-bearing capacity of the substrate must be adequate for the weight of the system (see delivery
documents).
Alignment
Set up the system on the site and align horizontally. If the substrate is soft, place suitable shims under the foot
ring/frame feet so that the system does not sink in.
2.2 Connection
The pipes for connecting the AquaTank must be designed so that they will safely withstand the expected
chemical, mechanical, pressure and temperature stresses. The pipes connected to the AquaTank must not
transfer any reaction forces and vibrations into the vessel.
2.2.1 Electrical connection
The installation of the immersion heater needs to comply with the common regulations and standards for
electrical equipment as well as with the regulations of the public electricity supplier. The installation must be
carried out by a person holding a certificate for electrical installations. This person is then responsible for the
correct installation and connection of the immersion heater.

Manual AQUATANK 316Ti/316 Ti HC
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3 Commissioning & Operation
•When charging the vessel with the water for the first time, make sure that all screw connections are
properly tightened, tighten any loose connections with a suitable tool and make sure that all seals are
firmly seated and leak-tight, particularly the flange seal on the tank.
•We recommend the use of strainers/filters if the cold water from the mains or the re-circulated hot water
from the circulation pipework contains particles that cause corrosion on stainless steel.
•Do not operate the equipment at pressures or temperatures in excess of those specified on the
nameplate of the vessel marking and drawings.
•Do not subject the equipment to conditions of vacuum or partial vacuum.
•Open the mains stop cock and fill the unit with water.
•Open successive the air vent on top to purge the unit of air.
•Open the primary heating circuit successive and adjust the primary control valve on the setpoint and heat
the water to its temperature of use.
•Check all gaskets/sealings at the water connections and the inspection opening for leaks when the vessel
has reached its working temperature and rectify as necessary. Some bolt tightening maybe necessary after
the unit has been first pressurerised.
•The periodical change of cold and hot temperatures causes a load alteration on all gaskets and sealings
and degrades its elasticity during the period of operation. This can cause leaks after a certain period.
Call the attention of the user/operator regarding this circumstance. Give the necessary instructions for
periodical checks of all water connections and issue instructions how to refit the leak tightness.
3.1 Maintenance
The AquaTank must be inspected by a competent person in time intervals not exceeding 1 year.
Annual maintenance should include cleaning and debris from the base of the vessel to comply with guidelines
on prevention of legionella bacteria proliferation.
The leak-tightness of all screw and flange connection seals must be checked at regular intervals. Because of
constantly fluctuating temperature loads, i.e. topping up with cold water when water is extracted and re-
charging to tank temperature, the elasticity of the seal materials used suffers during the life of the system. The
tension of the screw connections can decline at the same time, resulting in leaks.
Open the air vent and pipe the drain to a drain point and open the drain valve.
The cylinders internal condition can be inspected by removing the inspection cover to allow visual examination.
Re-fit the gaskets/sealings and re-fill the vessel according to the commisioning instructions above.

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4 Design data
4.1 Ratings
Design pressure, max. 10 bar(g)
Design temperature, max. 95°C
AquaTank 316Ti is in article 4.3 according to PED 2014/68/EU.
AquaTank 316Ti HC could be not in article 4.3 according to PED 2014/68/EU if used with water above 110°C
inside coils. Please check so available detailed drawing to get exact PED classification
The DECLARATION of SUPPLIER is directly attached to the delivered vessel.
Energy efficiency class according to European Union rule N°814/2013 and N°812/2013
4.2 Material
AquaTank 316Ti
The vessel and connections are made of AISI 316Ti according to DIN material number 1.4571 / BS 320 S 21 /
AFNOR Z 6 CNDT 17.12 / SS 2350
4.3 Insulation characteristics
Eurofire class D S1, do/EN 13501-1 (or B2/DIN 4102)
150 to 1000L : Neodul 80/20 (100mm) covered with a polyester hard plastic
1500 to 4000L : Neodul 100/20 (120mm) covered with a polyester hard plastic

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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5 Dimensions and technical data
5.1 AQATANK 316 Ti
Energy efficiency class according to European Union rule No. 814/2013 and No. 812/2013

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5.2 AQUATANK 316 HC Ti
Energy efficiency class according to European Union rule No. 814/2013 and No. 812/2013

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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6 Tap water heating capacity
6.1 Characteristics

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7 Warranty
Our equipment comes with a 12-month warranty from the date of
shipment. This may be extended to 6 months from the date of
commissioning of the equipment, subject to commissioning report
being mailed to Cetetherm. The warranty period is limited to 18
months from the actual date of shipment from the factory.
The manufacturer’s liability is limited to the replacement of any defective
part that cannot be repaired. No other financial compensation may
be claimed in any case under the warranty
The nature and probable cause of the defect must be reported to the
manufacturer before any action is taken. The defective part should
then be returned to our factory in France for assessment unless
written agreement to proceed otherwise has been obtained from
Cetetherm. The results of the assessment can only state whether or
not the terms of the warranty apply
7.1 Exclusion factors:
Non-compliance with the guidelines for installation, configuration and maintenance:
Over pressures, water-hammer, scaling, noncompliant water quality
Also excluded from the warranty:
•Fitting costs, refitting costs, packaging, transport, and any accessories or equipment not
manufactured by Cetetherm, which will only be covered by any warranties issued by said third-
party manufacturers.
•Any damage caused by connection errors, insufficient protection, misapplication or faulty or
careless operations.
•Equipment disassembled or repaired by any other party than Cetetherm.
Non-payment will lead to all operational warranties covering the delivered equipment being terminated.
7.2 Spare parts
Only replace any defective part with the original spare part. Please contact your local Cetetherm agency.
7.3 How to contact Cetetherm
Our contact details are updated on our website www.cetetherm.com

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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8 Connection of 1 tank/2 tanks to a Tap Water System
REP
DESIGNATION
REP
DESIGNATION
A
B
VR
Primary inlet
Primary Outlet
Setting valve
HE
PP
PC
Heat Exchanger (PHE)
Primary pump (single/double)
Charging Pump (1 or 2)
CW
Cold water inlet
PR
Recycling pump (on installation)
V3V
Mixying 3 port control valve with actuator
V
Manual gate valve
PRV
Pressure relief valve
S1
DHW temperature sensor (master)

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9 Neodul-Installation
1. Put fleece plugs into drilled holes.
2. Connect insulation segments together and close hooking closure step by step
3. Push in left part of hooking closure → Right part slips over left part of hooking closure.

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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4. Insert top insulation after mounting insulation segments.

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5. Insert inspection hole protection

Manual AQUATANK 316Ti/316 Ti HC
Installation and maintenance instructions
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10 Connections
10.1 AQT316Ti
10.2 AQT316 TiHC

Cetetherm sas
ZI du Moulin, Route du Stade
69490 Pontcharra sur Turdine - France
www.cetetherm.com