dnt LW-eTRV-C LoRaWAN-compatible radiator thermostat
SKU :
dnt-LW-eTRV-Cexcl. 19.0% VAT plus Shipping costs
The dnt-LW-eTRV-C LoRaWAN radiator thermostat is the perfect solution for efficiently controlling the indoor climate in large buildings such as educational institutions, offices and hotels. With its open window detection, programmable weekly profiles and energy-efficient technology, it optimizes energy consumption and increases comfort. The always-on e-paper display makes it easy to use, while LoRaWAN connectivity provides a range of over 6 km. Installation is quick and easy thanks to compatible valve adapters. Ideal for public and private applications.
| Equipment | |
|---|---|
| antenna | internal |
| sensor | Temperature |
| Communication | |
| frequency | EU868 |
| connectivity | LoRaWAN |
| interfaces | Downlink |
| activation | OTAA |
| Power supply | |
| power supply | battery, included, replaceable |
| battery details | LR6, Alkaline, nicht aufladbar |
| number of batteries | 2 |
| Certifications | |
| enclosure protection class | IP20 |
This thermostat is designed for remote room temperature control, time-controlled temperature regulation, adaptation to user needs, and maintaining an accurate and constant target temperature. It also supports individual temperature profiles via downlinks and offers up to ten time switch points per day.
It uses 2x 1.5V LR6 / Mignon / AA batteries. The typical battery life is up to 4 years, but this can vary depending on usage.
The dimensions are approximately 53x53x94 mm (WxHxD), and it weighs 179g including batteries.
It uses LoRaWAN Class A.
It is compatible with valves that have M30 x 1.5 mm connection threads, including Heimeier, MNG, Junkers, Landis&Gyr, Honeywell-Braukmann, Oventrop, Schlösser, Comap, Valf Sanayii, Mertik Maxitrol, and Watts. It also supports adapters for Danfoss RA, RAV, and RAVL valves.
It features an always-on E-Paper display with rotation in 90° steps, color inversion, and a classic 1-5 scale.
The device features several operating modes, including manual temperature mode, manual positioning mode, automatic mode, holiday mode, window-open mode, boost mode, frost protection mode, and emergency mode.
It can detect open windows internally based on a temperature drop or externally using sensors.
When the battery voltage drops below 2.2V, the device enters emergency mode and drives the valve to an emergency position. A battery warning is issued below 2.25V, and LoRaWAN communication stops below 2V.
It uses an adaptive PI controller that automatically adjusts to the room and environmental conditions. This adaptation process can be disabled if needed. It also has temperature offset to correct heat accumulation or cold spots. The device also offers hydraulic balancing.
The valve performs an automatic descaling cycle once a month. This can also be started manually.
Yes, it can be reset to factory settings via a LoRaWAN command or directly on the device using the system button. A software reset via LoRaWAN command is also possible, which retains the parameters.