Drazice NADO 500/300 v1 Operating And Installation Manual Download Page 4

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1

 

DESCRIPTION 

Accumulation tanks 

serve accumulation of excessive heat from its source.

 

The source may be a solid fuel 

boiler,  heat  pump,  solar  collectors,  fireplace  inserts,  etc.

 

Some  types  of  tanks  allow  combination  of 

connecting even multiple sources.

 

 

The NADO type tanks serve accumulation of heat in the heating system and allow heating or preheating of 

HSW (Hot Service Water) in an inner tank.

 

Incorporation of an accumulation 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 tank.

 

 

The tanks are made of

 

steel, without any inner surface treatment, the outer surface of the tank is provided 

with a protective paint.

 

The tanks are manufactured in 500 and 750 litre volumes.

 

Individual versions are 

additionally equipped with an inner accumulator of 300 and 250 litre volumes, and funnels G1½“ mm, with 

a possibility to install an electric heating element of TJ 6/4“ series.

 

The tanks are equipped with a removable 

100 m thick insulation 

polyurethane foam (foam rubber) and a lock.

  

 

The NADO type enables direct heating of HSW (Hot Service Water) in an inner accumulator, or preheating of 

water  for  another  water  heater.

 

Connection  to  a  boiler  usually  allows  direct  HSW  heating  in  an  inner 

accumulator to the desired temperature whilst, on the contrary, connection to solar collectors or to a heat 

pump only preheats HSW and this tank can be connected to e.g. an electric heater to complete heating of 

the water to the desired temperature, or an electric reheat can be fitted in the accumulation tank which is 

enabled by a TJ 6/4“ series electric heating unit.

 

In the standard version, the flange is blinded.

 

2

 

THE DESIGN OF SUITAB

LE VOLUME AND TANK 

INSTALLATION 

An ideal size of the accumulation 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 accumulation 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 accumulation 

tank.  No pressure grow in the accumulation tank heating water compartment may occur above  

the maximum operating pressure of 0.3 MPa, if the heating system is pressurised 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 accumulation tank!!! 

 

 

 

 

Summary of Contents for NADO 500/300 v1

Page 1: ...INSTALLATION MANUAL Accumulation Tank NADO 500 300 v1 NADO 750 250 v1 Dru stevn z vody Dra ice stroj rna s r o Dra ice 69 294 71 Ben tky nad Jizerou Phone 420 326 370 990 Fax 420 326 370 980 E mail e...

Page 2: ...1 DESCRIPTION 4 2 THE DESIGN OF SUITABLE VOLUME AND TANK INSTALLATION 4 3 TECHNICAL PARAMETERS 5 4 INFORMATION SHEET 5 5 DIMENSIONS AND CONNECTION 6 6 DISPOSAL OF PACKAGING MATERIAL AND NON FUNCTIONIN...

Page 3: ...h drinkable water It is recommended to use the product in indoor environment with air temperatures from 2 C to 45 C and a relative humidity up to 80 Product s reliability and safety is proven by tests...

Page 4: ...allows direct HSW heating in an inner accumulator to the desired temperature whilst on the contrary connection to solar collectors or to a heat pump only preheats HSW and this tank can be connected t...

Page 5: ...0 WEIGHT kg 153 180 MAXIMUM TANK PRESSURE MPa 0 3 0 3 MAXIMUM PRESSURE OF THE INNER ACCUMULATOR MPa 0 6 0 6 40 C HOT WATER YIELD AT 53 WATER TEMPERATURE IN THE TANK INLET WATER 15 C HW FLOW RATE l l m...

Page 6: ...6 5 DIMENSIONS AND CONNECTION NADO 500 300v1 G 1 1 4 inner G 1 2 inner G 1 outer G 3 4 outer G 1 1 2 inner B C d E F G H I J L Lk 245 1524 650 484 584 1036 1691 1532 327 1821 1841...

Page 7: ...7 NADO 750 250v1 G 1 1 4 inner G 1 1 2 inner G 1 outer G 3 4 outer Sensor well 15x2 150 A B C d E F G I J K M N O P Lk 90 268 615 750 821 1643 268 615 1060 1553 465 525 585 342 2040...

Page 8: ...D NON FUNCTIONING PRODUCT A service fee for providing return and recovery of packaging material has been paid for the packaging in which the product was delivered The service fee was paid pursuant to...

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