RDF880KN

- Operating voltage: AC 230 V - Power consumption: 6 VA - Setpoint setting range: 5...40 °C - Switching differential: 0.5…6 K - Communication: Bus: KNX (S-mode with Synco 700) - Analog inputs, number: 2 - Relay outputs: Heating: contacts, floating - Relay outputs, number: 5 - Relay output, switching voltage: AC 230 V - Relay output, switching current: 5 (2) A - Degree of protection: IP30 - Dimensions (W x H x D): 86 x 86 x 47 mm - Warranty: 24 Months

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• Large display, touch screen with backlight
• VRF HMI: temperature setpoint, fan speed and operating mode selections
• 2-position (ON/OFF) temperature control with potential free output for UFH via build-in / external temperature sensor
• Display room temperature value (↓C) and relative humidity value (% r.h.) via a build-in temperature and humidity sensor
• One setpoint adjustment for both VRF HMI and UFH controls
• Fan auto and manual speed setting from 1 up to 7 speed
• Operating mode selection for VRF: AUTO, COOL, HEAT, FAN and DRY
• Operating mode selection for UFH: Comfort and Protection
• Economy operating mode for both VRF and UFH to save energy
• 2 multifunctional inputs (see details in functional descriptions)
• Adjustable control parameters for alternative settings
• KNX bus communications via S-mode
• Integration to VRF system via S-mode and third party gateways
• Commissioning via ETS download
• Wizard function for fast commissioning via HMI
• Alarm / Error information
• AC 230 V operating voltage
• Mounting on round box, with min 60 mm diameter or recessed square 86 mm box with 60.3 mm fixing centers and min 40 mm depth

Additional info
User Application selections via dipswitches:
1. Under Floor Heating only (UFH)
2. VRF HMI only (note: interface to VRF indoor unit via a third party VRF/KNX gateway)
3. Both UFH and VRF HMI

When VRF HMI is selected, it covers most daily VRF operations and the following parameters can be set to fit different VRF brands:
· Setpoint adjustment: – maximum / minimum limitations
· Fan speed adjustment: – auto / manual speeds (up to 7 speeds)
· Operating mode selection: – AUTO, HEAT, COOL, FAN and DRY
· Economy mode: – energy saving
· Fan swing adjustment (optional): – auto swing or fix at any position (10)
· Delay off timer (optional): – allow up to 23 hours operations before off