Bedienungsanleitung Extraflame LP20 (Seite 11 von 40) (Englisch)

811772

Zoom out

Zoom in

Vorherige Seite

1/40

Nächste Seite

smaller section than the inlet of the safety valve or the sum of the inlet sections in case of more valves heading a single pipe.

The discharge piping of the safety valve must be realised in order not to prevent the regular functioning of the valves and

not to cause damages to persons; the discharge must ow immediately near the safety valve and be accessible and visible.

The diameter of the discharge piping must not however be lower than that of the outlet connection of the safety valve. For

diameter of outlet connection it is intended the minimum internal diameter on the valve outlet upstream of the eventual

internal threading.

CLOSED EXPANSION VESSEL

Warnings: check that the preload of the expansion vessel is set to 1.5 bar.

The vessel maximum exercise pressure must not be lower than the calibration pressure of the safety valve, increased by

overpressures, characteristic of the same valve, bearing in mind the eventual level dierence between vessel and valve and

the pressure generated by the functioning of the pump. The capacity of the expansion vessel/s is evaluated depending on the

total system capacity as results from the project. The closed expansion vessels must comply with the dispositions regarding the

planning, manufacturing, evaluation of conformity and use for pressure appliances. Intercepting objects or section decreases

must be inserted/practiced on the connection piping, which can be constituted by system portions. The insertion of a three-

way intercepting valve which allows connection between the vessel and the atmosphere for maintenance operations, is

allowed. Such device must be protected against accidental manoeuvres. The connection pipe must be realised in order not to

present scales or deposits storage points. In case of more heat generators which feed the same system or the same secondary

circuit, each heat generator must be connected directly to the expansion vessel or system expansion vessels unit, altogether

dimensioned for the total volume of water contained in the same system or the same independent circuit. Where it is necessary

to separate the individual heat generator from the expansion vessel or expansion vessels unit, a three-way tap must be applied

on the connection piping between the generator and the vessel, in order to ensure, in every position, the connection of the

generator with the expansion vessel or with the atmosphere. The expansion vessels, the connecting pipes, the bleed pipes and

drain pipes must be protected from freezing, where this phenomenon occurs. The solution used for this purpose is described

in the design.

COMMISSIONING CHECKS

Before connecting the boiler:

a) wash all system piping in order to remove any residues which might compromise the correct functioning of certain system

components (pumps, valves, etc.).

b) check to verify that the ue has adequate draft, is not narrowed and that other appliances do not discharge into the ue.

This is to prevent unexpected power increases. Only after this control can the ue tting be mounted between the boiler and

the ue. A check of the connections with pre-existing ues is recommended.

AUTOMATIC THERMOSTATIC MIXER VALVE MANDATORY

The automatic thermostatic mixing valve nds applications in solid fuel boilers as it prevents cold water return into the

exchanger.

Routes 1 and 3 are always open and, together with the pump

installed on the return, they guarantee water circulation

inside the biomass boiler exchanger.

An elevated return temperature, allows eciency

improvement, reduces formation of combustion product

condensation and prolongs the boiler life span.

Valves on the market have dierent calibrations. Extraame

advises use of 55°C model with 1" hydraulic connections.

Once the valve calibration temperature is reached,

route 2 is opened and the boiler water goes to the system via

the ow.

Valve sold as an accessory (optional)

| ENGLISH

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

Extraflame LP20 Seite 11

Brauchen Sie Hilfe? Stellen Sie Ihre Frage.

Missbrauch melden von Frage und/oder Antwort

Art des Missbrauchs:

Forenregeln

Neu registrieren

Andere Handbücher von Extraflame LP20

Das Handbuch wird per E-Mail gesendet. Überprüfen Sie ihre E-Mail.

Ihre Frage wurde zu diesem Forum hinzugefügt

Info