HEAT REGULATOR EHEAT EXTENSION IO

The eHeat thermostat is freely configurable via a browser, touch screen, or the device's own display. It is an intelligent thermostat that can be optimized according to conditions and system requirements. IO points can be expanded according to usage needs. The thermostat features weather forecasting control and demand-response functionality. eHeat120K enclosed thermostat

• Enclosed heat distribution thermostat (e.g., for single-family homes, low-rise apartments, row houses)
• Ready-to-install package
• Compatible with eHeat124
• eHeat120K is designed for 2-circuit heat distribution applications

Additional options

• eHeat120K can be supplemented with additional IO via eHeat124, allowing up to 3 heating circuits. eHeat124 is installed directly into the eHeat120K enclosure.

Functional features

• Domestic hot water control based on a fixed setpoint using supply water temperature
• Heating circuits controlled by a 5-point control curve based on supply water temperature, fixed setpoint, or a setpoint provided via cloud service
• Heating circuit control possible with a fixed outdoor temperature setpoint – outdoor temperature measured either locally or manually entered or via bus
• Sensor fault alarm for all temperature measurements
• Adjustable control deviation alarms for circuit supply water measurements
• Circuit pump fault alarms
• Circuit pumps shut down when no heating demand exists – pumps and control valves are cycled once per week during shutdown periods
• Circuit pressure measurements or pressure alarms
• Remote heating supply and return temperature measurements
• Cold water metering and leak alarm
• Adjustable upper and lower limit alarms for remote heating supply temperature and circuit pressure measurements
• Conflict alarms for circuit pump control
• Energy meter connection via bus (Kamstrup)
• Pump connection via bus (Grundfos)
• Domestic hot water tank charging

Other features

• Clear graphical display with five buttons
• Ethernet RJ45 connector (not available on eHeat120M)
• 2 x RS485 bus
• SD card slot
• Can be connected to monitoring systems or cloud services
• Freely configurable IO
• Widely compatible sensors
• 1 x pulse counter
• Modbus RTU (optional MS/TP)

Ethernet features

• Email alerts
• WebVisu
• Modbus TCP/IP (optional BACnet IP)

Enclosure dimensions and main components

• Width 340 mm, height 335 mm, depth 160 mm
• Kaedra 1x12 module + rail, IP65
• Transformer 24 VAC, 25 VA
• Main switch 20 A
• Busbar terminals
• Fuse holders and fuses
• 6 cable entries

IO points

• 6 x relay output
• 2 x digital input
• 8 x analog input
• 2 x analog output

This product description is an automated translation of the original Finnish description.