Connection Of The External Pellet Tank; Left Door Version; Choice And Way Of Connection Of The Control And Safety Elements - ATTACK AWP 25 Instructions For Use Manual

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2.4.5 CONNECTION OF THE EXTERNAL PELLET TANK

The boiler is equipped by a motor for vacuum pellet feeding from an external tank. The external

tank can be placed nearby the boiler or in another room. The max. length of the suction tube is

10 m. The tank can be in the higher position, but not in the lower position than the boiler. It is

recommended to use the ATTACK vacuum tanks for the ATTACK WOOD&PELLET boiler. The

suction tubes (  50 mm) and the vacuum tank can be ordered as accessories together with the

boiler.

Connection of the suction and blow out tube marked on the rear side boiler as „PELLET IN"and

„PELLET OUT".

There is an option of the ATTACK WOOD&PELLET boiler with the left door (door hinges on the

left side). It can be done before the boiler start-up or later, when the boiler is not in service. The

main, upper, middle and bottom door can be turned without need of the any additional tools.

Everything necessary is contained in the boiler. Use the standard tools: cross screwdriver, fork

key of 8–13 mm or nut, allan key of 6 mm, etc. The adjustment has to be done by a trained

worker.

2.4.7 CHOICE AND WAY OF CONNECTION OF THE CONTROL AND SAFETY

ELEMENTS

The boiler is delivered with the basic regulation and control equipment. This equipment must be

completed with other items (not delivered with the boiler) in line with local regulations, that

have to be installed in the heating circuit – particularly the following ones: safety valve (Pic. 4)

against exceeding the permitted pressure in the heating system (prescribed value: 2,5 bar), valve

of the boiler aftercooling loop to take the excessive heat from the boiler into the waste and

deaeration valve for the correct boiler function. The volume of the expanse vessel in the system

has to be defined by a designer of the heating system according to the system design and local

regulations. The electrical installation related to the additional boiler equipment has to be done

by a specialist and following the valid regulations.

DANGER

The heating system must be equipped with a safety valve against

exceeding the pressure in the boiler (2,5 bar). This valve should

be placed on the flow connection of the boiler, always installed in

front of the boiler closing valve (or in front of the Oventrop –

scheme 1). If the safety valve is not functional, the excessive

pressure will not be eliminated and it may cause an explosion

of the boiler.

Pic. 4 Safety valve against the overpressure

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