Thermador VCI 230/236/248 DS Before Installation, Exhaust-Airmode, For optimum hood efficiency

BEFORE INSTALLATION

EXHAUST-AIR MODE

The exhaust air is discharged upwards through a duct or directly through an exterior wall to the outdoors.

DExhaust air should neither be directed into a smoke or exhaust flue (chimney) that is currently used for other pur- poses nor into a duct that is used for ventilating rooms in which stoves or fireplaces are also located.

Exhaust air may be discharged in accordance with official and statutory regulations only (e.g. national building regulations).

Local government regulations must be observed when discharging air into smoke or exhaust flues that are not otherwise in use.

DWhen the extractor hood is operated in exhaust-air mode simultaneously with a different heating system that also makes use of the same chimney (such as gas, oil or coal-fired heaters, continuous-flow heaters, hot- water boilers), care must be taken to ensure that there is an adequate supply of fresh air, which will be needed by the heating system for combustion.

Safe operation is possible provided that the negative pres- sure in the room where the heating system is installed does not exceed 4 Pa (0.04 mbar).

This can be achieved if combustion air can flow through non-lockable openings, such as doors, windows and through the air-intake/exhaust-air wall box.

WARNING – Avoid risk of poisoning – If the air intake is inadequate, there is a risk of poisoning from com- bustion gases that are drawn back into the room.

Note: When assessing the overall requirements, the com- bined ventilation system for the entire household must be taken into consideration. This rule does not apply to the use of cooking appliances, such as cooktops and ovens.

Unrestricted operation is possible if the extractor hood is used in recirculating mode – with activated carbon filters.

If the exhaust air is going to be discharged to the out- doors, a telescopic wall box should be fitted into the out- side wall.

BEFORE INSTALLATION

For optimum hood efficiency:

❑Short, smooth ductwork.

❑As few bends in the ductwork as possible.

❑Diameter of ductwork to be as wide as possible with no tight bends in ductwork.

If using long, rough exhaust-air ductwork, several duct elbows or ductwork with a narrower diameter, the rate of air extraction will no longer be at an optimum level and there will be an increase in noise.

IMPORTANT: The manufacturer of the hood accepts no liability for complaints which can be attributed to the design and layout of the duct- work.

❑Round duct sections: Recommended internal diameter: 6”/10”.

❑Flat ducts must have an internal cross-section equal to that of round duct sections.

Minimum l 6” approx. 28.3 inches2.

❑If ducts have different diameters: Insert sealing strip for transition.

❑For exhaust-air mode, ensure that there is an adequate supply of fresh air.

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