Product details
chemelex® Raychem VIA-DU-20 electronic controller provides control of ramp heating systems in car parks, driveways, staircases and other excess inclines. The controller energises the heating circuits when the ambient temperature falls below a set point and moisture is detected. The VIA-DU-20 saves energy when compared to other systems regulated by ambient temperature only and also may identify a the risk of potential freezing rain.
Raychem VIA-DU-20: Features & Benefits
- Precise control: ambient and moisture sensing
- Adjustable range: 1°C to +6°C (ambient sensing) and 1 to 10 (moisture sensitivity)
- Display: point matrix, 2 x 16 places
- Communication: BMS connection and alarm contacts
- Voltage: 230 VAC, ±10%, 50/60 Hz
- Switching: Imax 4(1) A, 250 VAC, SPST, volt free
- Reliable: chemelex® Raychem 6 six year available
- TECHNICAL DETAILS
SPECIFICATIONS Application Ramp heating for chemelex® Raychem EM2-CM, EM2-MI, EM2-R, EM2-XR and EM4-CW heating cables Area of Use Ordinary area Assembly DIN rail Exposure temperature range 0°C to +50°C Electrical Supply voltage 230 VAC, ±10%, 50/60 Hz Power consumption 14 VA max Main relay (heating) Imax 4(1) A, 250 VAC, SPST, volt free Alarm relay Imax 2(1) A, 250 VAC, SPDT, volt free Switching accuracy ± 1 K Terminals 0.5 mm² to 2.5 mm² Display and programming Screen type Point Matrix, 2 x 16 places Control buttons - TEST
- MENU
- LANGUAGE selection (GB, D, F, I , FIN, H, PL)
- Increase ADVANCE selection value
- Decrease REDUCE selection value
- CONFIRM
Temperature set points 1°C to 6°C Base temperature OFF, -15°C to -1°C Freezing rain warning Local detection, weather service, OFF Moisture sensitivity range 1 (max) to 10 (min) Post heating time 30 to 120 minute, selectable Overruling OFF, ON, by BMS Parameters saved in unit memory in the event of power supply interruption Enclosure Material Noryl Ingress protection IP20 / class II (requirements of class II only fulfilled after proper mounting) Mounting option DIN rail Sensor - Moisture (VIA-DU-S20) Type PTC 5 wire Sensor 70 mm x 35 mm flat cable Cable length 15 m (standard); extendable up to 150 m using 5 x 1.5 mm² cable Supply voltage 8 VDC via control unit Exposure temperature range -30°C to +80°C Sensor - Ambient (VIA-DU-A10) Type PTC Enclsoure dimensions 52 mm wide
50 mm high
35 mm depthIngress protection IP54 Terminals 1.5 mm² to 2.5 mm² Cable 2 x 1.5 mm², max length 100 m (not included) Exposure temperature range -30°C to +80°C Fixing Wall mountable - APPROVALS
APPROVALS CE certified - DIMENSIONS
DIMENSIONS AND WEIGHT Width 160 mm Height 90 mm Depth 58 mm Weight 0.75 kg - DOWNLOAD DOCUMENTS
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