Multifunctional heating controller for use in district heating substations and district heating plants with LPB and M-bus communication. Suited for one heating circuit with d.h.w. heating in instantaneous systems or with storage tank. 28 programmed plant types. Operating voltage AC 230 V.

Key features:
Optimized for low return temperatures in district heating networks.

Display of time of day‚ time program‚ setpoints‚ actual values‚ limitations‚ errors‚ etc.

Optional remote operation via room unit

2 independent switching programs each with 3 occupancy times per day

Yearly clock with automatic summer- / wintertime changeover

Power and / or volumetric flow limitation in combination with heat meter

Pump and valve protection

Automatic monitoring of sensors with display of alarm

Locking function for district heat parameters

Optional suppression of hydraulic creep

Frost protection function

DRT limitation for the reduction of peak loads and of idle heat

Maximum limitation of the return temperature on the primary side

Minimum and maximum limitation of the flow temperature

Optimum start / stop control of the heating system

Automatic ECO function

Legionella function

Forced charging function for plant with storage tank

Cooling down protection for the primary supply lines

Solar d.h.w. heating

D.h.w. heating with electric immersion heater

Refill function

Selectable heating period


Plant-specific:
Precontrol internal and interconnected

1 mixing or pump heating circuit

D.h.w. heating with selectable priority:

Instantaneous systems

Storage charging system

Storage system with integrated heat exchanger

2 charging pumps

Circulating pump