Siemens RDG Application Manual page 26

VAV application examples
HP application example
26
Application
VAV single duct, cooling only
– Damper actuator: 0...10 V
– Window contact
VAV single duct and el. reheater
– Damper actuator: 3-pos
– El. heater: DC 0...10V
– Central time switch
Compressor with reverse valve
– Compressor: ON/OFF
– Reverse valve: ON/OFF
How to set the application
1. Thermostat: RDG400
2. DIP switch: Application single duct
Actuator → Y10-Go-G
Y10 = DC 0...10 V
Window contact → D1-GND
3. Wire:
4. Parameters: no change (= default)
TIPS
– Window contact for saving energy during airing the rooms
1. Thermostat: RDG400
2. DIP switch: Application single duct +
el. heater
Actuator → Y1/Y2-Go
Y10 = DC 0...10 V
El. heater → Y10-Go
3. Wire:
Time switch → D1-GND
4. Parameters: P47 = 1 (VAV output 3-pt)
TIPS
– Use a central time switch (e.g. SEH62.1) to set back room
temperature during non-business hours
– Adjust parameter prolong comfort period (P68) to allow
occupant to override the central time switch, e.g. by working
overtime
1. Thermostat: RDG110
Compressor → Y11/Y21-N
2. DIP switch: Application 4-pipe
RV → Y12/Y22-N
3. Wire:
4. Parameters: P52 = 0 (Fan disable)
– Set control sequence to manual change over (P01=2);
then the user can select manually between heating or cooling