WIRING DIAGRAM
WR 600
Version: 2019-05-22 - MAICO VENTILATOREN, www.maico-fans.com - We are not responsible for mistakes or printing errors and retain the
right to make technical modifications without giving prior notice
Page 3
WR 600 ventilation unit with RLS 1 WR room air control and COsensor
Connection of a CO2 sensor for the demand-driven supply of fresh air. The ventilation unit only reacts to the
CO
2
sensor if ventilation level 2 (nominal ventilation) is selected at the room air control.
A1 - electrical terminal box WR 600
A2 - control circuit board: Jumper 10 (CO2) set
B1 - room air control RLS 1 WR
CO2 - CO
2
sensor SKD
W1 - 230 V AC connecting cable
W2 control cable for room air control
W3' - connecting cable for external CO
2
sensor (to be supplied by the customer). Connection to control circuit board
A2 at terminals “CO2” and “OT”. Set jumper 10 (CO2) to release the feature, see figure.
Switching points for CO
2
sensor
< 900 ppm, ventilation unit switches to ventilation level 1. Ventilation level 2 is shown at the room air control.
> 1,000 ppm, ventilation unit switches from ventilation level 1 to ventilation level 2.
> 1,100 ppm, ventilation unit switches to ventilation level 3. Ventilation level 2 is shown at the room air control.
< 1,000 ppm, ventilation unit switches from ventilation level 3 to ventilation level 2.