Siemens RDG Application Manual page 25

Universal application
example
Application
Fan coil, 2-pipe and floor heating,
single speed
– 2-pipe cooling only: ON/OFF
– Floor heating limitation (ON/OFF)
with temperature limitation
– Single speed fan
Fan coil, 4-pipe, ECM fan
– Valve actuators: DC 0...10 V
CLC and radiator
– Chilled ceiling (3-pos) and radiator (PWM)
– Dewpoint monitor
How to set the application
1. Thermostat: RDG100
2. DIP switch: Application 2-pipe & rad.
Y1 = ON/OFF
Actuator C. → Y1-N
Y3 = ON/OFF
Actuator H. → à Y3-N
3. Wire:
Fan → Q1-N
Floor temp. sensor. → X1-M
4. Parameters: P51 = 25°C (floor Heat. Temp. limit.)
P53 = 1 (Single-speed fan)
TIPS
– Floor heat limitation to avoid overheating (DIN EN 1264)
hence protect your floor and as well provides more comfort
– Select "2-pipe & el. heater" for application with electrical
floor heating
1. Thermostat: RDG160
2. DIP switch: Application 4-pipe
Y10 = DC 0...10 V
Actuator H → Y10-Go
Y20 = DC 0...10 V
Actuator C → Y20-Go
3. Wire:
ECM fan → Y50-Go
4. Parameters: no changes necessary (factory-setting)
TIPS
– Modulating (ECM) fan control for optimal comfort, lower level
of noice and for saving energy costs
– Check ECM fan max (P55) and min (P56)
1. Thermostat: RDG100
2. DIP switch: Application 2-pipe & rad.
Y1/Y2 = 3-pos
Actuator C → Y1/Y2-N
Y3 = PWM
Actuator H → Y3-N
3. Wire:
Dewpoint sens. → X1-M
4. Parameters: P38 = 4 (Dewpoint input)
P46 = 2 (PWM)
P52 = 0 (Fan disable)
TIPS
– Dewpoint monitoring to detect condensation.
Cooling is stopped if condensation occurs.
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