| EQJW 245: Heating ctrlr, 2 loops, local/district htg
How energy efficiency is improved
Function for switching heating on and off at optimal times. Limitation of max. permissible temperatures for heating and drinking water.
Areas of application
Weather-compensated control of secondary flow temperature for heating control and drinking water preparation in combination with heat exchangers in buildings of all types.
Properties
- Communicative heating controller
- High level of operating convenience thanks to front-mounted, modern operating concept (twist and press) and large LCD display
- Intuitive user interface
- Convenient weekly and annual switching program
- Automatic changeover between summertime and wintertime
- Anti-legionella function
- Room temperature switching by means of room temperature sensor or room user panel
- Automatic changeover to summer or heating mode
- Manual mode
- Alarming by SMS message
Technical description
- Housing 144 x 96 mm made of flame-retardant, pure white thermoplastic (RAL 9010)
- Ni1000 inputs for outside, flow, drinking water, return and room temperature or room user panel
- PI control
- Relay outputs for activation of final control elements and pumps
- Additional multifunctional relay output
- Protected SERVice level with adjustable control parameters
- Log book
- Room temperature switching
- Min./max. limitation for flow and return temperatures
- Pulse input for measurement and limitation of flow rate or energy
- Frost protection function, pump and valve anti-jamming function
- Optimisation of switching on and off times for individual heating circuits
- Function heating and screed curing (functions for drying floor screed)
- Parameterisable interface for communication via RTU Modbus or proprietary drive bus
- Suitable for fitting on walls, in panels and on top-hat rails
- Electrical connection in base with screw terminals for wires up to 2.5 mm²
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