Nevir NVR-CB5PHW User Manual page 19

Nozzle change operation
1. Please use driver with special head for removed and install nozzle as.
(figure 2)
2. Please remove nozzle (figure 3) from burner with special nozzle driver
and install new nozzle. (figure 4)
Figure 2
Ventilation of room
The air needed for burning is received from room air and the gases emitted
are given directly in room. For safe operation of your product, good room
ventilation is a precondition. If no window or room to be utilized for room
ventilation is available, additional ventilation should be installed. However,
room has a door opening outside, it is no needed to vent holes.
Smaller than 5 m³
Between 5 m³ - 10 m³
Bigger than 10 m³
In basement or cellar
Room size
Figure 3
19
Figure 4
Ventilating opening
min. 100 cm²
min. 50 cm²
no need
min. 65 cm²