Siemens RDG - Application Examples and Functionality Overviews; Fan Coil Application Examples

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Application How to set the application
F
an coil, 2-pipe only cooling
– Valve actuator: ON/OFF
– Keycard contact
1. Thermostat: RDG100
2
. DIP switch: Application 2-pipe
Y
1 = ON/OFF
3. Wire: Actuator → Y1-N
F
an → Q1...Q3-N
Key card → D1-GND
4. Parameters: no change necessary (factory-setting)
TIPS
–
Keycard contact in hotel guest rooms helps saving energy costs
–
RDG100T with 7-day time program
– RDG100KN communicating KNX
F
an coil, 2-pipe with el. heater
– Valve actuator: ON/OFF
– Heating with electrical heater ON/OFF
– Automatic changeover
– Return air temperature sensor
1. Thermostat: RDG110
2. DIP switch: Application 2-pipe, el. heater
3. Wire: Actuator → Y11-N
El. heater → Y21-N
Fan → Q1...Q3-N
Temp. sensor → X1-M
H/C CO sensor → X2-M
4. Parameters: P01 = 3 (Auto H/C CO)
TIPS
– RDG110 with relay outputs can drive direct an el. heater
up to 1 kW
Fan coil, 4-pipe with el. heater
– Valve actuators H&C: PWM
– Electrical heater: ON/OFF
– Electrical heater enable input
– Window contact
1. Thermostat: RDG100
2. DIP switch: Application 4-pipe, el. heater
Y1 = PWM
Y3 = PWM
3. Wire: Actuator H. → Y1-N
Actuator C. → Y3-N
Contactor
1
for el. heater → Y2-N
Fan → Q1...Q3-N
El. heater enable → X1-M
Window cont. → D1-GND
4. Parameters: P38 = 5 (El. heater Input)
P46 = 2 (PWM H.)
P47 = 2 (PWM C.)
TIPS
– Electrical heater enable signal for saving energy costs
– Note
1
: Add conductor if load exceed 1A!
Fan coil application
examples
Application examples
Installation and set up
1. Select a suitable thermostat
2. Set application via DIP switch according to the mounting Instructions
3. Wire and install the thermostat. Apply power
4. If necessary, set parameter P01 (control sequence) and other application-specific parameters