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RCU50U and RCU50.2U Room Temperature Controllers
For VAV Systems
Wiring Diagrams
Dimensions
Figure 16. Controller and Baseplate Dimensions in Inches (Millimeters).
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as
design improvements are introduced. Other product or company names mentioned herein may be the trademarks of their respective owners.
© 2002 Siemens Building Technologies, Inc.
Siemens Building Technologies, Inc.
1000 Deerfield Parkway
Buffalo Grove, IL 60089-4513
U.S.A.
G
7
1
2
3
6
G0
Figure 14. RCU50U Wiring Diagram.
1
Signal input set point shift
2
Measuring neutral
3
Heat/cool "changeover sensor" input
4
0 to 10 Vdc control signal
5
Ground for control signal
6
Operating voltage, 24 Vac negative
4.49
(114.15)
3.80
(96.6)
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D1 GND
4
5
1mA
max.
7
D1
G
G0
GND Ground
1.69
(42.8)
(11.8)
Document Number 155-327P25
G
7
6
G0
Figure 15. RCU50.2U Wiring Diagram.
Operating voltage, 24 Vac positive
Signal input for potential-free
operating mode changeover switch
24 Vac, digital input
24 Vac
0.16 (4)
1.10
1.10
(28)
(28)
1.38
1.10
(35)
(28)
1.10
1.18
(28)
(30)
0.46
0.16 (4)
1.02
1.18
(26)
(30)
3.34
(90)
Document No. 155-327P25
Technical Instructions
Rev. 1, March, 2002
4
5
1mA
max.
0.16
(4)
4.09
(104)
Printed in the U.S.A.
Page 11
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