Connection diagram for RLS 45 K – System bus

RLS 45 K

PushPull 45 Comfort room air control

PP 45 LT

PP 45 power unit

PP 45 HY

PP 45 humidity sensor
for flush mounting

PP 45 CO2

PP 45 CO2 sensor for flush mounting

PP 45 VOC

PP 45 VOC sensor for flush mounting

X1.1

Mains connection terminal
RLS 45 O

X1.2

Fan/bus connector bush

X2

RS-485 bus connector bush

Fan 1.1-1.3

Ventilation unit 1, 3, 5 on RLS master

Fan 2.1-2.3

Ventilation unit 2, 4, 6 on RLS master

Fan 3.1-3.3

Ventilation unit 7, 9, 11 on RLS slave 1

Fan 4.1-4.3

Ventilation unit 8, 10, 12 on RLS slave 2

Fan 5.1-5.3

Ventilation unit 13, 15, 17 on RLS slave 2

Fan 6.1-6.3

Ventilation unit 14, 16, 18 on RLS slave 2

S1

Button/switch Additional function (sleep, intensive, supply air mode, safety function)
Integration of the exhaust air units is done via the two-pole switch. Ensure switching voltage to exhaust air unit / RLS 45 K via separate poles

UP-B

Flush-mounted distributor bus, connection of RLS,LT, EO module and sensors using RS-485 bus interface

W1.X

Bus connecting cable (RS-485). Recommended control cable J-Y (ST) Y 2x2x0.8 mm. Max. cable length to the sensors, RLS, LTs and EnOcean module approx. 100 m. Alternatively, this connection can also be used as a ModBus RTU interface.