Centrifugal roof fan

DRD 22 EC

Article number: 0087.0171
Manufacturer: MAICO
Centrifugal roof fan with EC motor, DN 224
Application examples: Production facility, Workplace, Commercial premises, Industrial building, Restaurant
DRD 22 EC IM0013832.PNG Centrifugal roof fan with EC motor, DN 224
DRD 22 EC IM0013704.PNG Centrifugal roof fan with EC motor, DN 224

Characteristic curve

DRD 22 EC - Characteristic curve

  1. Auxiliary characteristics curves for control voltage 2.5 - 10 V

Dimensioned drawing

DRD 22 EC - Dimensioned drawing [mm]

  1. Clear width
  2. Number of holes: 3

Technical data

DRD 22 EC - Technical data

Article DRD 22 EC
Air flow volume 2.125 m³/h
Rotating speed 1.840 1/min
Impeller type radial
Speed controllable
Reversing capacity
Type of voltage Alternating current
Rated voltage 230 V
Frequency 50 Hz
Nominal output 165 W
Imax 1,3 A
Degree of protection IP 54
Installation site Roof
Installation position vertical
Material Aluminium
Weight 9,3 kg
Nominal size 224 mm
Width 520 mm
Height 331 mm
Depth 520 mm
Airstream temperature at IMax -25 °C up to 60 °C
Packing unit 1 piece
Range E
GTIN (EAN) 4012799871712
Article number 0087.0171

 

63 Hz

125 Hz

250 Hz

500 Hz

1 kHz

2 kHz

4 kHz

8 kHz

Total

LWA5, high (dB(A))

73

LWA6, high (dB(A))

77

LWA5= free inlet sound power level in dB.

LWA6= free outlet sound power level in dB.

Product description

Productdescription

DRD 22 EC

short description

Centrifugal roof fan with EC motor, DN 224

Product description

Features

  • Low energy consumption thanks to EC technology.
  • Attractive aluminium housing.
  • Easily detachable cover.
  • Galvanised protective grille on the discharge side with protection against accidental contact.
  • Sturdy eyebolts enable transport by crane.
  • Impeller with plastic blades curved to the rear, dynamically balanced at two levels, in accordance with performance level 6.3, DIN ISO 1940.

Motor

  • DC motor.
  • Rated voltage 230 V, 50 Hz.
  • Thermal overload protection as a standard feature.
  • Speed output.
  • 0 - 10 V DC control input
  • Soft start.
  • IP X4 degree of protection with closed housing cover.

Electrical connection

  • In terminal box, easily accessible once housing cover has been removed.

Security instructions

  • The fan can be operated only if the protection against accidental contact with the impeller is guaranteed for fans with a free inlet.

Table of contents

Wiring diagram

DRD 22 EC - Wiring diagram

DRD 18 EC and DRD 22 EC roof fans with ST EC 010 potentiometer

Fuse and main switch provided by customer

TA - Speedo



DRD 18 EC and DRD 22 EC roof fans with ST EC 3 potentiometer

Fuse and main switch provided by customer

Levels 1 - 3 up to 7 V DC

Levels 2 - 5 up to 9 V DC

Level 3 - 10 V DC

TA - Speedo



DRD 18 EC and DRD 22 EC roof fans with ST EC 230 potentiometer

Fuse and main switch provided by customer

TA - Speedo



Predecessor - successor

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