District heating 2 primary valves, mixed circuit, DHW (Hy0510)

Demand based control of district heating station with two primary-side valves
Outdoor temperature-compensated flow temperature control via downstream mixers for radiators, convectors and low temperature heating circuits
Hot water preparation according to the layer filling principle with constantly controller external heat exchanger

Functions

The basic functions are contained in an indestructible program.
All the parameters are predefined with sensible basic settings and allow individual adjustments as necessary. PCs are not required for this.
All the relay outputs can be tested manually.

Remote energy control

Functions according to AGFW guidelines
Demand control of setpoint request from downstream control circuits
Sliding or fixed maximum limitation of the remote energy return temperature
Minimum valve stroke for exact recording of heat volume in low-load operation
Interval rinse for temperature recording in the primary return with closed remote energy valve
Fixed maximum limitation of the remote energy return temperature during hot water filling

Mixed circuit

Hot water control

Time switch with daily and weekly program for hot water filling and circulation pump
Anti-legionella automatic system
Constant hot water preparation according to the tank layer filling principle
Hot water preparation according to the layer filling principle with external heat exchanger

Combination

Communication

Communication takes place over the system bus without additional interfaces
Distance (max. 100 m)
Remote operation with the wall modules SDW.. also takes place using the system bus

Fault message

If the required temperatures cannot be achieved within a reasonable time, or sensors interrupt or short-out, then the controller will generate a fault message.

Related Material

Product Type	Description
Application for Smile digital controller
_Hy0510
Microprocessor controller district heating
SDC12-31WM	With connection base for wall installation
SDC12-31PM	With connectable terminal strips for control panel installation
Sensors
AF20-B65	Outside air temperature sensor
SF20-B54	Contact temperature sensor WF, VF, VFB (5)
KTF20-65-2M	Hot water temperature sensor (without well) SF, VE2 (2)
Recommended
SDW10WE	Remote control with temperature selector/sensor and mode switch
Selectable
VF20-1B54NW	Immersion temperature sensor (instead of SF20-B54)
VF20-3B54NW	Hot water sensor with optional NIRO immersion well (instead of KTF20-65-2M)
SDW30	Easy-to-use remote operation with display and complete programming unit along with temperature sensor/selector (instead of SDW10)
SCS-12	Base for Smile Controller, for control panel installation as touch protection
SWS-12	Connecting base for wall installation of SMILE panel models
SRR	Reducing attachment frame for control panel installation, assuming available control panel cut-out on controllers ZG52 /53 /55 / 82 /85 or ZG215 /215V /252 /254
Thermostat (selection according to specifications of the district heating company or DIN 4747/1)
STW+TR	Safety limiting thermostat STW (2)