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1.
Important information
1.2 Flue
A properly dimensioned flue is required for optimum functioning of the combustion system. Calculation of the dimen-
sions must follow EN 13384-1. See the technical data section for the values required for this calculation.
Please note that in the lower performance range. flue gas temperature may be below 160 °C.
The flue gas system must display at least the following classification:
Temperature class:
T400 = nominal operating temperature 400 °C
Soot fire resistance class:
G = flue gas system with soot fire resistance
Corrosion resistance class:
2 = suitable for unprocessed wood fuels
We would recommend fitting an energy-saving intake regulator for problem-free operation. This will largely prevent
moisture in the flue. and losses resulting from down-time will be reduced (draught interruptions). If you have a feed
pressure (flue draught) of more than 0.20 mbar. the energy-saving intake regulator must be fitted.
Note!
We would recommend fitting the draught limiter outside the flue. around ½ m below where the exhaust
pipe enters the flue.
CAUTION
Frequently. overhauling existing systems involves over-sized flue cross-sections or
flues not designed for low-temperature operation. We recommend an evaluation by
the local building inspector before installing the boiler system. In this way appropriate
modifications can be made to the flue before system installation (see technical data for
flue calculation values).
1.3 Boiler room/installation room
DANGER
The configuration of the entire system must comply with the requirements of regional
legislation. applicable regulations. standards and guidelines.
– The minimum clearances for connections. cleaning and maintenance must be complied with – see Section 2.3.3 Min-
imum service clearances.
– Sufficient ventilation of the set-up area must be assured. See Section 2.2.10 Combustion air.
– The boiler may only be installed in a dry location!
– The boiler may not be installed in rooms that are very dusty or humid.
Permissible limit values:
Humidity: max. 85 % at room temperature of 25 °C (non-condensing)
Room temperature: +2 to +40 °C
– Sufficient lighting must be provided for service and maintenance.