Document No. 129-497
Installation Instructions
May 18, 2011
Installation, Continued
Step 7. Replace controller housing.
Step 5. Terminate wires (see wiring diagrams),
close cover terminal cover and replace screw.
Step 8. Tighten retaining screws.
Step 6. Set DIP switches.
The installation is now complete.
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
TH0899R1
S1
M1
Y1
I
II
III
SN
SP
SN
1
3
7
8
D1 GND
4
2
10
11
12
N1
9
B2
B1
5
Figure 1. RDF10U.
TH0897R1
S1
B1
M1
Y1
I
II
III
SN
SP
SN
1
3
9
8
D1 GND
4
2
10
11
12
N1
Y2
6
5
Figure 2. RDF30U.
Terminal
Position
RDF10U and RDF30U
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
Second stage Heating/Cooling
output NO (RDF30U only)
7
Heat/Cool changeover sensor
(RDF10U only)
8
Measuring Neutral, remote or
changeover sensor
9
Remote air sensor
10,11, 12
Fan Speed output III, II, I
D1,
GND
Signal input for potential-free
operating mode changeover
switch
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Siemens Industry, Inc.
