INSTRUCTION MANUAL
for „DELTAFAN” wall fans of the type: ***/R/*-*/**/***/Ex
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4.2 MARKING
„DELTAFAN” wall fans of the type:
4.3 NOMINAL PARAMETERS
The aerodynamic characteristics were developed on the basis of investigations in a laboratory of
Multi-Wing (Denmark). Due to the extensiveness of the material, the data – the dependency of the air
volume flow on the fan compression, in particular – for all fans are published in the catalogue and are
available on our regularly updated website at www.deltafan.pl. The selection of a fan for a particular
application should be carried out by a competent person, so that the fan operation point in not
located in the unstable operation area (the so called fan stall phenomenon).
Common parameters for all fans in the series of types:
•
Protection degree IP20 (from the fan air intake side)
IP56 (fan drive)
•
Working temperature -20°C ≤Tamb≤ +40°C
•
Relative humidity up to 95%
explosion-proof build
230 - power supply voltage 230V,50Hz
400 - power supply voltage 400V,50Hz
blade inclination angle
number of rotor blades
wall fan
fan diameter
