Rima ONGAS MEGA 05, Installation Manual

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Reduce the ratio of gas by checking the emission values
(O
2
, CO
2
, CO) received from the flue gas analyzer as per
the technical specifications table. Decrease the rate by
rotating the adjustment section to the right, and increase the
rate by rotating it to the left using a proper allen wrench set
(as shown in the figure). Resume this process until the
emission values provided in the table in Page 15 are
reached. Bring the modulation level to minimum by using
the minus button. Compare the emission rate with the table
once more.
5.4.Flue Connections
The boiler is designed for the following flue configurations:
Type B23: The boiler is designed to be connected to an open flue hole that shall exit vertically from
the roof. The combustion air is directly taken from the room where the boiler is installed. In
connection type B23, the room shall comply with the same installation requirements as approved for
open flue boilers. The flue shall also comply with the applicable laws.
5.4.1.Installation Examples

The flue system shall be installed in accordance with local and international standards (EN-
13384-1-2).

The material for flue outlet shall only be a material that is resistant to combustion products;
and as a rule it shall be made of stainless steel or plastic.

Flue connections shall be performed by authorized persons.

Connect the boiler to the flue using pipes made of stainless steel or plastic material with a
structure and an internal diameter (diameters may vary depending on the boiler models) that
are resistant to high temperatures (> 120℃), chemical effects of flue gases, condensate and
normal mechanical stresses that shall be experienced in time.

Use a flue connection that can be removed at any time considering maintenance applications.

Horizontal flue passages shall have a minimum inclination of 3º in the direction of the boiler