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5 Delivery package
The delivery package of the boiler is composed as follows:
- Boiler frame;
- Boiler with cover;
- Automatic air vent (in boiler);
- Safety valve 3 bar (in boiler);
- Automatic by-pass (in boiler);
- Expansion vessel 8 litre / 1 bar (in boiler frame);
- Isolation valves with drainpoint (CH 2x,)
- Gas isolating valve;
- Fittings consisting of plugs and screws;
- Drawing template;
- Installation instructions;
- User manual;
- Warranty Card.
The following components are not present in the boiler packaging as a standard and should be included in
the installation according to the requirements:
- Flue system;
- External controls.
6 Boiler description
The ATAG iS is a room sealed, condensing and modulating CH boiler.
The boiler is equipped with a compact stainless steel heat exchanger with smooth pipes. It is a well thought-
out principle using sustainable materials.
The boiler burns gas to supply heat (natural gas and LPG versions available). This heat is transferred
in the heat exchanger to the water in the CH installation. The rapid cooling o of the ue gases causes
condensation. This results in a very high eciency. The condensate that is formed, has no negative impact
on the heat exchanger and it's operation, and is removed through the internal siphon. This feature requires a
condensate drain pipe connected to the drain of the building.
The boiler is equipped with an intelligent control system. The boiler anticipates on the heat demand of the
heating installation or hot water demand. This will cause the boiler to tune its capacity to the installation. This
means that the boiler will function longer and at a low level.
The boiler has been tested according to valid CE standards and has a CE certicate and >88% Ecient
SEDBUK 2009.
Statement: No banned materials including asbestos, mercury, CFC's have or will not be included in
the product.