Drazice NADO 1000/35v9 Manuale di funzionamento e installazione - Pagina 3
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Stampa la pagina1 DESCRIPTION
Storage tanks serve accumulation of excessive heat from its source. The source may be a solid fuel
boiler, heat pump, solar collectors, fireplace inserts, etc.
The NADO type storage tanks serve accumulation of heat in the heating system and allow heating or
preheating of HSW (Hot Service Water) in an inner stainless tank. Incorporation of a storage tank in the
heating system with a solid fuel boiler allows an ideal run of a boiler at favourable temperature during the
boiler operation. The main benefit lies in the period of optimum operation (i.e. with maximum efficiency)
when the excessive unconsumed heat accumulates in the storage tank.
The storage tanks are manufactured in 800 and 1000-litre volumes. The tanks and tubular exchangers
are made of steel, without the inner surface treatment, the outer surface of the tank is provided with a
protective paint. Individual versions are equipped with a tubular exchanger and a buried stainless
exchanger of 35 litre volume, and two funnels G1½" with the possibility to install an electric heating
element of TJ 6/4" series. The tanks are equipped with a removable 100 m thick insulation – polyester foam
- and a Symbio lock.
The NADO type enables direct heating of HSW (Hot Service Water) in a stainless exchanger, or its
preheating for another water heater. Connection to a boiler usually allows direct HSW heating in the inner
tank to the desired temperature whilst, on the contrary, connection to solar collectors or heat pump only
preheats HSW and another, e.g. electric, heater has to be used, in order to complete heating the water to
the desired temperature, or final electric heating has to be fitted in the storage tank which is enabled by
the electric heating unit of TJ 6/4" series.
2 DESIGNING THE SIZE AND
CONNECTION OF STORAGE TANK TO
THE HEATING SYSTEM
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).
Notice: When putting into operation, water has to be filled first into the inner stainless
HSW exchanger 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 might get damaged!
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