Cordivari Bolly1 AP, User Manual

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Cod. 1910000001059 - nv04
1. General information
This document is intended for the installer and the end user. After the
system installation and commissioning make sure it is delivered to the
end user or the system manager.
The product dealt with in this document consists of the elements, which
are described hereinafter, designed and manufactured for the uses
indicated in the document itself.
Any use of the product other than the one stated in this document relieves
the manufacturer of any liability and will void any warranty.
1.1 DHW tank
The DHW tanks have been designed and manufactured for the production
and storage of domestic hot water through the heat exchange obtained
with the help of extractable, fixed or external heat exchangers outside
the DHW tanks, powered by sources of thermal energy of various types
(Heating appliances, Heat Pump, Solar panel) which use water as a heat
transfer fluid.
The products discussed in this document have been manufactured in
compliance with Directive 2014/68/EU (PED) for pressure equipment
concerning the fluid used and the relevant operating conditions.
1.2 Inertial accumulator (if provided)
The Inertial accumulator, which has to be connected to the thermal
system, has two main functions: hydraulic separator and thermal flywheel.
The hydraulic separation is used to make the generator (DHW tank or
heat pump) circuit flow rates independent from those of the terminals.
The thermal flywheel function is used to reduce the number of hourly
start-ups of the generator with the consequent increase of circuit thermal
inertia and more stable operating temperatures.
The Hot/Cold Inertial Accumulators are destined to yearly operation
systems requiring the storage of refrigerated water during the summer
and of heating water during the winter.
The Inertial Accumulator has been designed for the storage of technical
water for systems or of non-hazardous glycol solution.
1.3 Identification of tank category
(Specification EN 12897:2006 - Directive 2014/68/EU, 2009/125/EC,
2010/30/EC)
The products dealt with in this document have been tested in compliance
with the provisions of EN 12897:2006. The full range of the products
described in this manual has lower values than the threshold values
shown below:
• Receptacle for water containment (group 2) with a vapour pressure
at maximum permitted temperature lower than 0.5 bar over normal
atmospheric pressure (1013 mbar), maximum operating pressure PS
> 10 bar, product PS · V > 10,000 [bar · L], PS > 1000 bar;
• Piping for water containment (group 2) with vapour pressure at
maximum permitted temperature lower than 0.5 bar over normal
atmospheric pressure (1013 mbar), maximum operating pressure PS
> 10 bar, diameter DN > 200 and product PS · DN < 5000 [bar · mm].
Hence, according to Article 4.3 and Annex II, tables 4 and 9, all range
products and relevant heat exchangers do not need to feature the CE
marking. As stated in this directive, the correct manufacturing process
(according to the company Environment & Quality System UNI EN
ISO 9001:2000 – UNI EN 14001:2004), ensuring safe use, and the
manufacturer's identification are guaranteed by the manufacturer.
In order to use heat exchangers in solar thermal systems (or other types
of system) that require a temperature > 110°C in the primary circuit, it is
recommended to design system dimension to ensure that:
• The primary circuit temperature does not exceed the temperature of
140° C (to be reached only for limited periods of time).
• The maximum working pressure respects the following limitations:
The value resulting from the Pressure times the Volume of the heat
exchanger should not exceed 50 bar litre, i.e.
P·V ≤ 50 [bar · l]
Considering the fluid volume in the heat exchanger and using the above-
mentioned formula, it is therefore possible to calculate the maximum
allowable working pressure for each heat exchanger.
Beyond these limits the heat exchanger (as well as the plant) is subject
to the requirements for pressure equipment (design, checks at the plant
and in operation, periodic retraining etc.) and therefore heat exchangers
designed and tested according to regulation 2014/68/EU PED are
required.
2. Installation and Maintenance
2.1 Installation place
The product must always be installed so that it is sheltered from
atmospheric conditions, on an adequate and solid base, verifying, before
making the connections, that there is enough space for the extraction of
the magnesium anode and the resistor, if present.
Warning Do not use tank for non-fixed installations or for
transportation purposes.
Warning Install the product far from open flames, heat
sources and electrical components that could develop flames
and/or sparks and in general from any possible fire-triggering
sources.
Should the room where the DHW tank or the ducts are installed be
subject to temperatures < 0°C during the year, it is necessary to provide
adequate anti-freeze protection systems, such as the installation of
thermostats in the rooms or the programming of heating cycles by means
of the generator or the auxiliary resistor (not supplied).
• With regard to the 150 to 500-litre capacity versions, for a correct
levelling of the product the special adjustable feet (OPTIONAL, upon
request) must be used, making sure to fasten the locknuts. To avoid
breaking the insulation, lift the product from the ground using spacers
resting on all three feet.
• Ensure that the installation room, where the product will be located, is
provided with openings large enough to allow for free passage toward
the outside without any need for demolition. The warranty does not
cover any costs arising from defaults at this point.
• Ensure that the installation room of the product is equipped with a
drain (discharge) system suitable for the volume of the tank and of any
other equipment. The warranty does not cover any costs arising from
defaults at this point.
• The handling of the equipment whose weight exceeds 30 kg requires
the use of suitable means for lifting and handling. To this end, the
containers must only be handled when empty, using the specific
platforms or lifting eyebolts.
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