“MERCOR” SA
– The company reserves the right to modify and change the document
4/11
3. SUBJECT______________________________________
The subject of this Operating and Maintenance Manual is:
Jet fan mcr Bora F400
Jet fan mcr Bora F300
Jet fan mcr Bora F200
Jet fan mcr Bora BO – without fire resistance
4. INTENDED USE___________________________________________________
4.1. Application_________________________________________________________________
The mcr Bora jet fans are intended to remove smoke and heat generated in indoor rooms in case of fire.
The equipment facilitates evacuation of persons from the area on fire, protect the building structure and
its furnishing from high temperature, facilitate fire fighting, and inhibit spreading of fire to adjacent fire
zones.The mcr Bora without fire resistance jet fans are intered to ventilate rooms in case of no fire
occurance.
The available versions include:
single direction fans, with dual-speed motor
reversible fans, with dual-speed motor
The fans can be installed indoors on suitable consoles with the motor in the horizontal orientation.
The operating temperature range for fans in general purpose ventilation
systems is -20°C to + 40°C.
The fan may force dry air only, with a maximum particulate content of 0.3 g/m³.
This fan is not intended for forcing air with viscous pollutants that may settle
on the equipment, especially on its rotor.
This fan is not intended for forcing air with corrosive pollutants that may be
detrimental to the equipment.
The maximum actual rotor RPM must never exceed the nominal (rated) RPM
speed in operation.
Following operation in actual fire conditions, the fan will not be fit for further
use.
4.2. Fire resistance__________________________________________________________
Class F400 – fire resistance at 400°C for 120 minutes
Class F300 – fire resistance at 300°C for 60 minutes
Class F200 – fire resistance at 200°C for 120 minutes
Without fire resistance
