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Siemens RDU340… Basic Documentation CE1P3078en

Building Technologies Engineering 2014-09-05

6 Engineering

6.1 Connection terminals

G X1M

G0

Y21

Y10 G0

SELV

X2

L

G, G0 Operating voltage controller AC 24 V

L Operating voltage for electrical heater AC

230 V

Y21 Control output for electrical heater

Y10 Control output for DC 0…10 V actuator

X1, X2 Multifunctional input for temperature

sensor (e.g. QAH11.1) or switch

M Measuring neutral for sensor and switch

6.2 Connection diagrams

Application:

Single duct

N1 Room temperature controller RDU340...

Y1 DC 0-10V actuator for heating or cooling

S1 Operating mode switch-over contact

(e.g. key card)

B2 Heat/cool changeover sensor

10A

G

Application:

Single duct with

electrical heater

N1 Room temperature controller RDU340...

Y1 DC 0-10V actuator for heating or cooling

E1 Electrical heater

S1 Operating mode switch-over contact

(e.g. key card)

B2 Heat/cool changeover sensor

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