Aeration; If Using Fuel Oil; If Using Gas (Gt 220 Fitted With A Forced Draught Gas-Fired Burner) - DeDietrich GT 224 Installation And Service Manual

2. Description

2.7 Aeration

Position the air inlets in relation to the high ventilation vents in order
that the air is refreshed throughout the boiler room.
2.7.1

If using fuel oil

The minimum cross sections and the emplacement of the fresh air
inlet and the air discharge are governed by the order of 21/03/1968
amended by the orders of 26/02/1974 and 03/03/1976.
Generator installed in a building for collective use
(installations less than 70 kW)
The fresh air inlet must:
- Come out in the lower section of the premises,
- Have a free minimum cross section calculated on the basis of 0.03
dm² per kilowatt installed output and at least equal to 2.5 dm².
The air discharge must:
- Be located in the upper section of the premises,
- Rise above the roof (unless using an equivalent system which
does not cause a nuisance to neighbours),
- Have a free cross section (corresponding to 2/3 of that of the air
inlet and at least equal to 2.5 dm²).
2.7.2

If using gas (GT 220 fitted with a forced draught gas-fired burner)

France: the cross section of the aeration vent, which is compulsory
in the boiler room in which the boiler is installed, must comply with the
DTU 61.1 (P 45 204) standard and, in particular, with the instruction
on boiler room layout (Book 1764 April 1982)
Belgium:the cross-section of the aeration vents, which are
compulsory in the room in which the boiler is installed, must comply
with the NBN D 51.003 standard
Germany: the cross section of the ventiliation vents, which are
compulsory in the room in which the boiler is installed, must comply
with the VDI 2050 form 1 standard and with other prevailing
regulations.
Other countries: the cross section of the aeration inlet, which is
compulsory in the premises in which the boiler is installed, must
comply with the standards in force in the country.
10
Do not obstruct the air inlets in the room (even partially).
Generator installed in a builing for individual use
An adequate supply of fresh air must be provided as close as
possible to the appliances. Its cross section must be at least 0.5
dm².
In the upper section of the premises, an air outlet must ensure
effective ventilation.
Establishments open to the public
New establishment: Refer to the order of 25/06/1980
(installations of more than 20 kW and less than or equal to 70
kW).
Existing establishment: Refer to the order of 25/06/1980
(installations less than 70 kW).
Caution:
In order to avoid damage to the boiler, it is necessary to prevent the
contamination of combustion air by chlorine and/or fluoride
compounds, which are particularly corrosive. These compounds are
present, for example, in aerosol sprays, paints, solvents, cleaning
products, washing products, detergents, glues, snow clearing salts,
etc. Therefore:
- Do not suck in air evacuated from premises using such products:
hairdressing salons, dry cleaners, industrial premises (solvents),
premises containing refrigeration systems (risk of refrigerant
leakage), etc.
- Do not stock such products close to the boilers.
If the boiler and/or peripheral equipment are corroded by such
chloride or fluoride compounds, the contractual guarantee
cannot be applied.
GT 220 - GT 2200 22/01/09 - 300008281-001-E