The fan is operated in moderate and cold climate with a range of limit operating temperatures from minus 50°C to plus 60°C, placement category 2 according to GOST 15150, GOST 15543.1. The fan must remain operational in case of frost and subsequent defrosting.
The maximum operating altitude above sea level must be at least 1200 m.
For information on the engine operation refer to the operating documentation for the engine.
During operation the fan is installed horizontally.