Boiler-Room Ventilation; Supply Air Ventilation; Exhaust Ventilation; Chimney Connection - Orlanski ORLIGNO 200 Instruction Manual & Service Manual

1.1. Boiler-room ventilation.

According to european safety regulations each boiler room should have supply-exhaust
ventilation ensuring correct boiler operation and user's safety . Lack of ventilation or its
obstruction is the main reason of incorrect boiler operation (i.e. boiler cannot reach set
temperature).Exhaust ventilation removes from boiler room used air and harmful gases. Boiler
room with natural draught cannot have installed mechanical ventilation.

1.2. Supply air ventilation.

1. Ventilating duct section should have at least 50% area of chimney's section and not less
than 20 x 20 cm. Duct should be placed 1m above the floor.
2. Ventilating duct should have installed device for air flow control; device shouldn't limit duct
section above 1/5.Ventilating duct should be made of non-inflammable material.

1.3. Exhaust ventilation

1. Exhaust duct should be made of bricks with section of at least 25% of chimney section
not less 14 x 14 cm. Inlet hole cannot have any devices that reduce its section. Outlet hole
should be placed close to the ceiling led out 1,5 m above the roof. Ventilating duct should be
made of non-inflammable material.
2. Height of the boiler room min. 2,2 m.

1.4. Chimney connection

Chimney ducts should be installed according to binding rules and norms in countries to which
boilers are sold. Part of chimney system connection boiler with chimney is called flue. In order to
lower flow resistance of exhaust gases this part should lead as a straight pipe with, if necessary,
joints up to 45°.
Because of exhaust gases temperature ORLIGNO 200's need to be connected to chimney system
protected against condensate soaking.
30 cm above the floor closing door should be installed with tight closing.
Chimney section should be round or close to square shape because of low flow resistance.
Minimal flue diameter should be:
ORLIGNO 200 18, 25, 40 kW - 200 mm
ORLIGNO 200 60, 80 kW - 210 mm
Chimney should lead above the roof. Chimney outlet location is dependent on roof slope and its
combustibility.
Eko-Vimar Orlański Ltd. recommends to install draught regulator which stabilizes chimney draught.
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