Nevir NVR-CB4P User Manual page 18

GB
Room Ventilation
Air required for combustion is taken from the room air and gases
produced are returned directly to the room.
A good room ventilation is essential for the safe operation of your
appliance.
If there are no windows or doors to be used for room ventilation,
additional ventilation should be installed. However, if the room has a
door that opens directly to the outside, there is no need for additional
ventilation systems.
Room size
Less than 5 m³
5 m³ to 10 m³
Greater than 10 m³
In basement or cellar
Flame Output Speed Setting
First pull out the buttons on the control panel to do this. Adjust by
turning the screw in the middle of the gas cocks with a small screwdriver,
as shown in the picture below. Use a screwdriver of appropriate size to
adjust the flow adjustment screw. Turn the screw clockwise. Reverse the
procedure to make the appropriate adjustment and reinsert the buttons.
A normal flame length in the low position should be 6-7 mm. Check if the
flame is on or off for the last check.
Ventilation opening
min. 100 cm²
is not necessary
18
min. 50 cm²
min. 65 cm²