Mi-Heat MI-MC WiFi controller with MI-GS ground sensor for snow and ice Control
Automatic snow and ice control for outdoor areas
The MI-MC set with MI-GS ground sensor is the intelligent control solution for electric open-area heating systems in outdoor spaces. It is ideal for driveways, ramps, footpaths, entrance areas, basement access points, stairways and other areas that need to remain safe for pedestrians and vehicles in the event of snow, ice or freezing wet conditions.
In conjunction with the MI-GS ground sensor, the MI-MC controller monitors both the air temperature and the moisture levels on the sensor surface. Only when the set temperature conditions are met and moisture is detected does the controller switch on the connected heating system. This ensures the system is operated on an as-needed basis, reducing unnecessary energy consumption.
Features
- Automatic control of snow and ice clearance Systems
- For outdoor areas, driveways, ramps, paths and entrance Areas
- Measurement of air temperature, sensor humidity and sensor temperature
- MI-GS ground sensor with integrated heating module
- Adjustable temperature thresholds for demand-based operation
- Adjustable post-heating time to ensure the surface is completely dry
- Forced heating mode for manual heating phases
- Display showing air temperature, humidity and sensor temperature
- Wi-Fi/Smart Life app connectivity for convenient parameter Setting
- Controller mounted on a DIN rail
How it works
Snow and ice usually only form when low temperatures and humidity combine. This is precisely where the MI-MC system comes into play. If the air temperature falls within the set operating range, the controller begins monitoring the MI-GS ground sensor. If moisture is detected on the sensor surface, the control unit activates the connected open-area heating system. As soon as no further moisture is detected, the system does not switch off immediately, but continues to heat for a configurable hold-over time. This allows any residual moisture to evaporate and ensures the surface dries thoroughly.
As snow and ice are virtually non-conductive, the MI-GS moisture sensor features an internal heating module. This heats any snow or ice on the sensor surface, causing it to melt into water so that the controller can reliably measure the moisture. The MI-GS sensor is installed flush with the surface to be heated. The sensor surface must be oriented horizontally upwards, even if the surface itself is sloped. The sensor should be positioned in the dampest, shadiest and lowest part of the system so that it can reliably detect the most critical conditions.
Typical applications
- Garage driveways
- Courtyard driveways
- Ramps
- Basement access Points
- Footpaths
- Entrance Areas
- External staircases
- Commercial and private traffic areas
- Open spaces requiring electric snow and ice clearance
Technical data for MI-MC controller
Supply voltage: 85–265 V, 50/60 Hz
Standby power: 2 W
Switching capacity: max. 16 A
Terminal cross-section: max. 2.5 mm²
Ambient temperature: 0 to 45°C
Protection rating: IP20
Protection class: II
Dimensions: 90 × 53 × 65 mm
Mounting type: DIN rail
Temperature sensor: NTC, 10 kΩ / 25°C
Air temperature sensor cable length: 3 m
Technical specifications for the MI-GS ground sensor
Application: Ground / outdoor surfaces
Ambient temperature: -50 to 70°C
Temperature measurement range: -30 to 75°C
Cable length: 10 m
Temperature sensor: NTC, 10 kΩ / 25°C
Internal heating power: 5 W
Protection rating: IP68
Dimensions: 60x60x36 mm
Scope of delivery
1x MI-MC Controller
1x MI-GS ground sensor for outdoor areas with 10m cable
1x air temperature sensor with 3m cable
1x user Manual
Installation notes
The MI-MC controller has an IP20 protection rating and must be installed indoors or within a suitable waterproof enclosure. It is mounted on a 35 mm DIN rail.
In the case of higher loads, the controller’s permissible current rating (16A) must not be exceeded. If the recommended load range is exceeded or if three-phase heating cables (400V) are used, a suitable power contactor or relay must be fitted. Installation must only be carried out by qualified personnel.
In the case of asphalt surfaces, the sensor cable must not simply be laid in a corrugated plastic pipe. A suitable metal pipe must be used here. The sensor and cable must not be installed first and then covered with asphalt.
The sensor surface must be cleaned regularly of leaves, grit, dirt and other debris to ensure reliable operation.
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