| RDT 708: Ctrlr for vent.& air-cond for compact sys
How energy efficiency is improved
Input for outside temperature for summer adjustment and free outside cooling available.
Areas of application
Activation of final control elements for heating and cooling register, as well as dampers for heat or cold recovery, especially suitable for compact systems.
Properties
- 2-line plain text display with backlighting
- Easy operator guidance with 4 buttons
- 4 different basic models for continuous supply air and cascade control
- Expansion level with PLC functionality
- Weekly and annual switching program with automatic summertime/wintertime changeover
- Manual mode
- Option of connecting various setpoint adjusters
- PC software for parameterisation
Technical description
- Housing made of flame-retardant, black thermoplastic
- 4 analogue inputs Ni1000 or 0 - 10 V
- Multiplication of measured values
- PID control
- 3 analogue outputs (0 - 10 V) and 1 relay output
- Protected SERVice level with adjustable control parameters
- Sequencing, limiting and reset functions
- Free outside cooling
- Suitable for mounting on top-hat rail as per EN 60715
- Electrical connection with screw terminals for wires up to 1.5 mm²
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