Siemens RDF302 Documentation page 24

ON/OFF control
Control sequence
ON/OFF output
Note:
Setting the sequence and the control outputs
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Siemens
Building Technologies
The diagrams below show the control sequence for 2-position.
Heating mode
(automatic changeover = heating or heating only)
Y
YE
YHC
w
D
1
0
½ SDH
½ SDH ½ SDH
Heating mode with manual changeover (P01 = 2)
Y
YE
1
w
0
½ SDH ½ SDH
The diagrams only show the PI thermostat's proportional part.
Refer to sections 3.4 "Applications", 3.6.1 "Sequences", and 3.7 "Outputs".
RDF302 Basic documentation
Cooling mode
(man. / auto. changeover = cooling or cooling only)
Y
1
w
T[°C]
0
½ SDH
½ SDH
T[°C] Room temperature
W
YHC Control command "Valve" or "Compressor"
YE
SDH Switching differential "Heating" (P30)
T[°C]
SDC Switching differential "Cooling" (P31)
X
dz
w
D
YE
YHC
x
dz
w
½ SDC
½ SDC
½ SDH
(manual changeover = heating)
Room temperature setpoint
Control command "Electric heater"
Dead zone (P33)
Setpoint differential (P34)
T[°C]
CE1P3079en
07 Dec 2011