COSMOGAS B50 Installation, Use And Maintenance Manual
STORAGE TANKS
INSTALLATION, USE
AND MAINTENANCE
MANUAL
B50
62403758 - R00 01-06-2018_UK
INDEX
1 - GENERAL SAFETY WARNINGS ....................................................................................................................4
1.1 - National installation laws .......................................................................................................................................... 4
2 - GENERAL INFORMATION .............................................................................................................................5
2.1 - Introduction .............................................................................................................................................................. 5
2.2 - Overview of the models ............................................................................................................................................ 5
2.3 - Included accessories ................................................................................................................................................ 5
2.4 - Manufacturer ............................................................................................................................................................ 5
2.5 - Meaning of the symbols used .................................................................................................................................. 5
2.6 - Disposal ................................................................................................................................................................... 5
3 - MAIN COMPONENTS .....................................................................................................................................6
4 - OPERATION ...................................................................................................................................................7
4.1 - Storage tank intended use and operation ................................................................................................................ 7
5 - INSTALLATION ...............................................................................................................................................8
5.1 - Unpacking the appliance .......................................................................................................................................... 8
5.2 - Dimensions and minimum distances to respect ....................................................................................................... 8
5.3 - Choosing the installation site ................................................................................................................................... 8
5.4 - Domestic hot and cold water .................................................................................................................................... 8
5.5 - Installing the storage tank ........................................................................................................................................ 9
5.6 - Hydraulic connections .............................................................................................................................................. 9
5.7 - Safety valve .............................................................................................................................................................. 9
5.8 - Installation examples .............................................................................................................................................. 10
5.9 - Positioning storage tank sensor ............................................................................................................................. 12
5.10 - Storage tank pump connection ............................................................................................................................ 12
5.11 - Earthing ................................................................................................................................................................ 12
6 - COMMISSIONING ........................................................................................................................................13
6.1 - Commissioning ....................................................................................................................................................... 13
6.1.1 - User instructions ....................................................................................................................................... 13
6.1.2 - Filling the storage tank .............................................................................................................................. 13
7 - USE ...............................................................................................................................................................14
7.1- Generalities ............................................................................................................................................................. 14
7.2 - Switch-on procedure .............................................................................................................................................. 14
7.3 - Antifreeze protection .............................................................................................................................................. 14
8 - MAINTENANCE ............................................................................................................................................15
8.1 - General warnings ................................................................................................................................................... 15
8.2 - Maintenance protocol ............................................................................................................................................. 15
8.2.1 - Check for any water leaks ......................................................................................................................... 15
8.2.2 - Check whether the safety valve is in good condition ................................................................................ 15
8.2.3 - Checking whether the sacricial anode is in good condition ..................................................................... 15
8.2.4 - Check the operation of the circulation pump ............................................................................................. 15
8.3 - Disassembling the casing and accessing the inner components ........................................................................... 16
8.4 - Checking and replacing the magnesium anode ..................................................................................................... 16
8.5 - Expansion tank check ............................................................................................................................................ 17
8.6 - Replacing the pump ............................................................................................................................................... 18
8.7 - Disassembling the safety valve .............................................................................................................................. 18
8.8 - Emptying the storage tank ..................................................................................................................................... 18
9 - TECHNICAL FEATURES ..............................................................................................................................19
10 - EC DECLARATION OF CONFORMITY ......................................................................................................20
COSMOGAS
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B50
1 - GENERAL SAFETY WARNINGS
Installation, changes
Installation must be carried out by a professionally
qualied technician, in compliance with the national and
local regulations as well as the instructions contained in
this manual.
Improper installation or poor maintenance may result
in damage to people, animals or property which the
manufacturer cannot be held liable for.
Domestic hot water temperature exceeding 51°C can even
cause permanent damage to people, animals and property.
Above all, children, the elderly and the disabled should be
protected against the potential risk of scalds with devices
limiting the temperature of domestic water supplied to
xture units.
Do not leave packaging and replaced parts within the
reach of children.
Under the terms of use, the user is obliged to keep the
system in good condition and ensure that the appliance
operation is safe and reliable.
The user is required to have the appliance serviced by a
professionally qualied technician in accordance with the
provisions contained in this instruction manual.
Before performing any cleaning or maintenance, disconnect
the appliance from the power mains by possibly actuating
the specic shut-off devices.
After cleaning or any maintenance operation, before
reconnecting the power supply, make sure that all the
internal parts of the appliance are properly dry.
This appliance must not be used by people (including
children) with reduced physical, sensory or mental abilities
or with little experience and knowledge, unless they are
supervised or instructed on how to use the appliance by
the person responsible for their safety.
This instruction manual is an integral and essential part
of the product and must be carefully stored by the user
for possible future consultation. Should the appliance be
transferred or moved and left to another user, always make
sure that this instruction manual is given to the new user
and/or installer.
Any subsequently added optional accessories or kits must
in any case be original Cosmogas parts.
This appliance must only be used for the purpose it has
been expressly intended for: hot water storage for domestic
and sanitary use in residential environments.
Any manufacturer’s contractual or non-contractual liability
for damage caused by installation or use errors, and in any
case for non-compliance with the instructions given by the
manufacturer or with applicable national and local laws is
ruled out.
For safety reasons and environmental protection, dispose
of the packaging items in appropriate waste collection
centres.
In case of failure
In case of failure and/or malfunction of the appliance,
disconnect it and do not attempt any repairs. Always contact a
professionally qualied technician. If repair involves replacing
components, these must be original spare parts only. Failure
to do so may impair the safety of the appliance.
Professionally qualied technician.
A professionally qualied Technician is a person with specic
technical expertise in the eld of heating system components
and hot water production for hygienic and sanitary purposes
in residential environments, electrical systems and systems
in which combustible gas is used. These personnel must be
qualied in accordance with the law.
Technical drawings
All the drawings provided in this instruction manual for the
electrical, hydraulic or gas installation systems are purely
indicative. All safety and auxiliary devices as well as the
diameters of electrical, hydraulic ducts must always be
checked for compliance with applicable laws and standards
by a professionally qualied technician.
1.1 - National installation laws
Comply with applicable national standards, regulations,
directives and laws.
- Italian Ministerial Decree no. 37 of 22/01/2008 (former Law
no.46 of 05/03/90)
- Standard CEI 64-8
B50
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COSMOGAS
2 - GENERAL INFORMATION
2.1 - Introduction
Congratulations! What you have purchased is really one of the best products on the market.
Every single part is proudly designed, built, tested and assembled at COSMOGAS plants, thereby ensuring the
best quality control.
2.2 - Overview of the models
B50
B50 = Stainless steel inertial wall tank, 50-litre capacity.
2.3 - Included accessories
The appliance is supplied with the following accessories:
Amount No.
1 DRAIN COCK
1 FITTING KIT 62629861
1 MOUNTING TEMPLATE 60404636
Description
2.4 - Manufacturer
COSMOGAS srl
Via L. da Vinci 16
47014 - Meldola (FC) Italy
Tel. 0543 498383
Fax. 0543 498393
www.cosmogas.com
info@cosmogas.com
2.5 - Meaning of the symbols used
2.6 - Disposal
Code
Figure
CAUTION !!!
Risk of electric shock. Failure to follow these warnings may
jeopardise the appliance proper operation or cause serious
damage to people, animals or property.
Generic danger !!!
Failure to follow these warnings may jeopardise the appliance
proper operation or cause serious damage to people, animals
or property.
Important warning symbol
The crossed-out bin symbol indicates that the product must
not be disposed of in unsorted waste (i.e. together with “mixed
municipal waste”), but rather handled separately so as to be
submitted to special operations for its reuse or treatment, to
remove and safely dispose of any hazardous substances for
the environment. This will allow recycling all raw materials.
The user is responsible for delivering the product to Waste
Collecting Areas (also called ecological or waste platforms),
set up by Municipalities or Urban Hygiene Companies, at the
end of its service life.
For further information on how to properly dispose of these
devices, users can contact their local authority or dealers.
COSMOGAS
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B50
3 - MAIN COMPONENTS
1 13
2
4
5
6
7
11
8
9
10
020028.01.001
1 - Support ttings;
2 - Insulation;
3 - Magnesium anode;
4 - 50-litre tank;
5 - Expansion tank;
6 - Safety valve;
7 - Safety valve drainage pipe;
8 - Sensor well;
9 - Front casing;
10 - Circulation pump;
11 - Drain cock;
Figure 3-1 - Main components
B50
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COSMOGAS
4 - OPERATION
4.1 - Storage tank intended
use and operation
This product is a stainless steel storage tank, intended for
the production of domestic hot water for residential use.
It must be combined with a COSMOGAS DHW boiler or a
COSMOGAS water heater AGUADENS 16, 22, 37 models.
CAUTION!!! Installation must be carried out by
professionally qualied personnel, in compliance with
applicable national and/or local regulations as well as
the provisions in this instruction manual.
This storage tank is used to store domestic hot water at
a lower temperature than the boiling point at atmospheric
pressure.
It must be connected to a domestic hot water distribution
system, compatibly with the features, performance and
output of the appliance itself.
Before installing, wash the sanitary system thoroughly
in order to remove any residues or impurities that could
jeopardise the appliance proper operation.
COSMOGAS
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B50
5 - INSTALLATION
Figure 5-1 -
Minimum distances to be complied with
5.1 - Unpacking the appliance
Remove the product from the cardboard packaging and any
protective lm if present.
5.2 - Dimensions and minimum
distances to respect
Free space must be allowed around the appliance for both
installation and maintenance work, as shown in gure 5-1.
Figure 5-2 shows the product size and the positions of the
hydraulic connections.
5.3 - Choosing the installation site
CAUTION !!! Install the storage tank only on a
vertical sturdy wall that can bear its weight.
To install the storage tank, choose an indoor location or, in
any case, a place sheltered from the elements - rain, wind,
sun and, especially, frost.
Establish the appropriate room and position for installation,
keeping the following factors in mind:
- water supply connection;
- boiler or water heater connection;
- domestic hot water system connection;
- safety valve discharge connection;
1 - 3/4” cold water inlet pipe to boiler or water heater
2 - 3/4” domestic hot water outlet pipe from boiler or water
heater
3 - 3/4” safety valve discharge
4 - 3/4” recirculation
5 - 3/4” domestic hot water outlet
6 - Storage tank drain cock
7 - Electrical cable passage area
8 - Support ttings
This appliance must be installed in a place where any
water leaking from it, the connections between pipes or,
if any, the safety valve discharge may not damage any
materials or things located underneath.
5.4 - Domestic hot and cold water
CAUTION !!! If water hardness is higher than
25°F, we recommend tting a polyphosphate descaler
into the cold water inlet.
CAUTION !!! Fit a mesh lter no larger than 0.5
mm2 into the domestic cold water inlet.
CAUTION !!! Domestic hot water circuits must
be made of materials that are resistant to a temperature
of at least 95°C and a pressure of 10 bar. Otherwise
(e.g. plastic piping), the system should be equipped
with appropriate protection and safety devices.
CAUTION!!! If the storage tank is connected to
a sanitary recirculation circuit, install a suitably sized
safety valve and expansion tank to manage the natural
increase in water volume during heating.
Check the positions of the domestic hot and cold water
connections in Figure 5-2.
Provide a shut-off cock upstream of the cold water inlet,
which is useful for maintenance work.
Figure 5-2 - Appliance size and centre-to-centre
distances between connections
B50
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COSMOGAS
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