Atag E 22C, Инструкции по установке и обслуживанию

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Installation & Servicing Instructions ATAG E-Series
11
6.2 Expansion vessel
All ATAG E-Series boilers are provided with an internal expansion vessel.
The vessel of the E22S and E22C is positioned inside the boiler casing. This expansion
vessel has a pre-charge pressure of 1 bar and a capacity of 8 litres.
The vessel of the E32S and E32C is positioned directly beneath the boiler and together
with the casing forms a single entity with the boiler.
The expansion vessel is located vertically behind the casing, which can be removed by
pulling forwards. The expansion vessel has a pre-charge pressure of 1 bar and a capacity
of 12 litres.
If a larger capacity expansion vessel is needed for the installation a standard expansion
vessel should be fitted additionally.
If the internal expansion vessel is not sufficient, choose an expansion vessel volume, of
which the summary is geared to the installation’s water capacity. The pre-charge pressure
depends on the installation height above the expansion vessel (Table 4). Fit the expansion
vessel into the return pipe as close as possible to the boiler.
choice of expansion vessel table 4
installation height above
the expansion vessel
pre-charge pressure
of the expansion vessel
5 m 0,5 bar
10 m 1,0 bar
15 m 1,5 bar