RDF270.T..

1-/2-/3-speed or ECM fan

L, N

AC 230 V operating voltage

Y50

DC 0…10 V output

M

Input reference ground for Y50

Q1, Q2, Q3

1-/2-/3-speed fan output (relay output), AC 230 V

Q4

Bypass output, AC 230 V

Q5

External/internal circulation output, AC 230 V

M1

1-/2-/3-speed fan, DC 0...10 V fan