Field Instruments

General

Precise comfort control in individual rooms through precise temperature detection. Features

• Single-room controller for heating and cooling by means of air conditioning units in commercial and residential buildings
• For 2- or 4-pipe fan coil units, two-stage heating systems or water-bearing heat pumps
• Can be integrated into building management systems via Modbus/RTU
• Large configurable display with backlight
• Integrated on/off timer
• Deactivatable button operation for public installations
• Valve control via 2-point or 0…10 V output
• Supports 3-speed fans or fans with EC motor
• Summer/winter changeover in 2-pipe applications
• Automatic deactivation of internal temperature sensor when using a cable temperature sensor
• Installation via mounting plate without opening the controller
• Universal design and low installation height of 14 mm for inconspicuous fitting

   Specifications

• Make: Sauter
• Model: NRFC423MF111
• Analog Inputs: 1 × NTC
• Digital Inputs: 1
• Analog Outputs: 2
• Digital Outputs: 3 × relay (single-pole normally-open contact)
• Fan: 3 Speed
• Power supply: 100…240 V~, 50/60 Hz
• Power consumption: 5 VA
• Ambient temperature: 0…40 °C
• Ambient humidity: 10…90% rh, no condensation
• Storage and transport temperature: -10…60 °C
• Temperature sensor NTC 10k
• Digital input closed < 0.3 V= open > 0.7 V=
• Analogue input N/A
• Analogue output: U 0…10 V (100 kΩ)
• Relay output: 2.2 A (IR); 3.6 A (IX) cos φ 0.98 each at 240 V~
• Communication protocol: Modbus/RTU