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Siemens RDG1… room thermostats N3181en
Building Technologies May 28. 2009
Applications
The room thermostats support the following applications, which can be configured via
DIP switches at the rear of the unit. Depending on the thermostat type, ON/OFF or
modulating control outputs are available.
Application
DIP switch
Control output Product no.
ON/OFF, PWM, 3-position RDG100…
ON/OFF (SPDT) RDG110
DC 0…10 V
RDG140
Heating or cooling
• 2-pipe fan coil unit
• Chilled / heated ceiling
• 1-stage compressor
1)
1 2 3 4 5
ON
OFF
DC 0…10 V
2)
RDG160
ON/OFF, PWM, 3-position RDG100..
ON/OFF (SPDT) RDG110
DC 0…10 V
Note: Modulating el. heater
RDG140
Heating or cooling with auxiliary
heater
• 2-pipe fan coil unit with el. heater
• Chilled / heated ceiling and el.
heater
• 1-stage compressor
and el. heater
1)
Y1
M1
T
B2
E1
T
(B1)
T
(B1)
1 2 3 4 5
ON
OFF
DC 0…10 V
2)
Note: Modulating el. heater
RDG160
ON/OFF, PWM, 3-position RDG100…
ON/OFF (SPDT) RDG110
DC 0…10 V
RDG140
Heating or cooling and radiator /
floor heating
• 2-pipe fan coil unit and radiator
• Chilled / heated ceiling and
radiator
(B1)
M1
Y1
T
B2
T
T
(B1)
YR
1 2 3 4 5
ON
OFF
DC 0…10 V
2)
RDG160
ON/OFF, PWM, 3-position RDG100…
ON/OFF (SPDT) RDG110
DC 0…10 V
RDG140
Heating and cooling
• 4-pipe fan coil unit
• Chilled ceiling and radiator
• 1-stage compressor
1)
• 1-stage compressor with reversing
valve
1)
T
Y2
Y1
M1
(B1)
T
(B1)
1 2 3 4 5
ON
OFF
DC 0…10 V
2)
RDG160
Heating and cooling with auxiliary
heater
• 4-pipe fan coil unit with el. heater
T
Y2
Y1
M1
(B1)
T
(B1)
YE
1 2 3 4 5
ON
OFF
ON/OFF, PWM, 3-position RDG100…
ON/OFF, PWM, 3-position RDG100...
ON/OFF (SPDT) RDG110
DC 0…10 V RDG140
2-stage heating or cooling
• 2-stage fan coil unit
• 2-stage chilled / heated ceiling
• 2-stage compressor
1)
Y1
M1
T
B2
T
(B1)
T
(B1)
Y2
1 2 3 4 5
ON
OFF
DC 0…10 V
2)
RDG160
1) Heat pump application covered by RDG110
2) With ECM fan control DC 0…10 V
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