Siemens Synco 700 Series Basic Documentation page 102

Control strategy
Application example 3
102/120
Building Technologies
HVAC Products
Control strategy
• Same room
operating mode
• Shared setpoints
• Same room
operating mode
• Individual
setpoints
Room with underfloor heating and ventilation
Another application of the "Room control combination" is a room with underfloor
heating and a ventilation system. Exchanging the relevant process values over the
KNX bus enables a common control strategy to be applied, with the following aims:
• Optimum control, heating or cooling
• The same room operating mode for both controllers
(time switch and holiday/special day program, manual override)
• Automatic changeover of ventilation control
(Winter: Constant supply air temperature control, own setpoints)
(Summer: Room/supply air cascade control)
M
M
T
∆p
Basic documentation: Communication via the KNX bus
Appendix
Room control Effect
combination
Slave external
The slave ventilation controller shares
setpoint
the same setpoint as the master:
The setpoints cannot be set in the
slave ventilation controllers. Any
setpoint adjustments required must be
made in the master ventilation
controller.
Slave internal
The slave ventilation controller
setpoint
operates with its own setpoints.
T
M M
Comfort heating setpoint
PreComfort heating setpoint
Economy heating setpoint
∆p
2
2
T
∆p
T
M
T
CE1P3127en
30.08.2007