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Document No. 129-497
Installation Instructions
May 18, 2011
Installation, Continued
Step 5. Terminate wires (see wiring diagrams),
close cover terminal cover and replace screw.
Step 6. Set DIP switches.
Wiring Diagrams
B1
Remote temperature sensor
B2
Changeover sensor
E1
Electric heat
M1
Three-speed fan motor
S1
Digital input for day/night changeover
Y1
Control valve, heat/cool or two-pipe system
Y2
Cooling control valve for four-pipe system
SP
B1
B2
3
9
8
N1
1
12
11
10
I
II
III
SN
M1
SN
Figure 1. RDF10U.
Page 2 of 7
SP
S1
3
7
D1 GND
N1
5
4
2
Y1
SN
Step 7. Replace controller housing.
Step 8. Tighten retaining screws.
The installation is now complete.
B1
S1
9
8
D1 GND
1
12
11
10
5
4
2
I
II
III
SN
Y1
M1
Figure 2. RDF30U.
Terminal
RDF10U and RDF30U
Position
Terminal Function
1
Operating voltage 24 Vac
negative
2
Operating voltage 24 Vac
negative
3
Operating voltage 24 Vac
positive
4
Heating/cooling output NO
5
Heating/cooling output NC
6
6
Second stage Heating/Cooling
output NO (RDF30U only)
7
Heat/Cool changeover sensor
Y2
(RDF10U only)
8
Measuring Neutral, remote or
changeover sensor
9
Remote air sensor
10,11, 12
Fan Speed output III, II, I
D1,
Signal input for potential-free
GND
operating mode changeover
switch
Siemens Industry, Inc.
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