Drazice NADOS 800/140v2 Manual de operação e instalação - Página 4
Procurar online ou descarregar pdf Manual de operação e instalação para Aquecedor de água Drazice NADOS 800/140v2. Drazice NADOS 800/140v2 10 páginas. Storage tanks
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1 DESCRIPTION
Storage tanks are used to accumulate excess heat from its source. The source can be a solid fuel boiler, heat
pump, solar collectors, fireplace insert, etc.
The NADS tanks only serve to store heat in a heating system. The NADOS tanks also allow heating
or preheating of DHW in the inner vessel. The integration of the storage tank into a heating system with the
solid fuel boiler enables optimal operation of the boiler at a favourable temperature during the operation
of the boiler. The benefit is mainly the period of the optimal operation (i.e. with maximum efficiency) when
the excess heat is stored in the tank.
The tanks as well as the possible tube exchangers are made of steel, without any treatment of the inner
surface; the outer surface of the tank is provided with a protective coating. The tanks are made in volumes
of 800, 900 litres. The particular versions are also equipped with a tube heat exchanger, each with an area
1.5 m
2
.
The NADOS type allows direct heating of the domestic hot water (DHW) in an inner enamelled vessel,
or its preheating or another water heater. The connection with the boiler usually allows direct heating
of DHW in the inner tank to the required temperature, while the connection to solar collectors or a heat
pump only preheats the DHW and it is necessary to include another, e.g. electric heater, which heats
the water to the required temperature, or to install an electric heater into the storage tank, which can be
an electrical heating unit TJ 6/4".
The tanks are not intended for storing DHW - domestic hot water.
2 DESIGNING THE SIZE AND CONNECTION OF
STORAGE TANK
An ideal size of the storage tank is designed by a design engineer, or a person sufficiently qualified to design
heating systems.
Product assembly must be implemented by an authorised person (confirmed in the warranty certificate).
When putting into operation, water has to be filled first into the inner tank for HSW
and the operating pressure inside it has to be kept, only then heating water can be filled into
the outer storage tank, otherwise the product may get damaged!
The manufacturer explicitly emphasises the necessity of being particular in testing the tightness
of the heating circuit (radiators, piping joints, floor heating, etc.) with the connection
of the storage tank. No pressure grow in the storage tank heating water compartment may occur
above the maximum operating pressure of 0.3 MPa, if the heating system is pressurized
to higher than the maximum operating pressure, the inner enamelled tank may get permanently
damaged!
No stop fitting can be put between the security fitting of the heating circuit and the storage tank!!!
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