Wireless BACnet Thermostat: eZNTW

The eZNTW is a fully programmable thermostat equipped with onboard Wi-Fi and EnOcean® wireless connectivity. Featuring a standard temperature sensor with humidity, CO2 and motion options, the eZNTW also offers a choice of backlit colors that provide additional user feedback and esthetic appeal. The eZNTW NFC technology enables installers to use NFC-enabled mobile devices to configure the thermostat.


The eZNTW delivers custom solutions specific to the needs of each market, and provides
building occupants with an intuitive touch-interface to adjust their individual comfort

  • Wireless BACnet Thermostat - Delta eZNTW



The eZNTW is designed for a wide range of sensing applications, from basic temperature monitoring, to indoor air quality and occupancy sensing. 


eZNTW is ideal for new or retrofit projects where wiring is difficult or costly. Wire free connectivity increases flexibility of installation, and allows motion and temperature sensors to be installed at
optimal locations for best energy management results.

eZNTW is well-suited for multiple market applications like hotels, dormitories, schools and hospitals. eZNTW maximizes operational efficiency in the hospitality
market by integrating with hotel management systems and room locks.



  • BACnet/IP over Wi-Fi, BACnet MS/TP, Delta LINKnet communication EnOcean wireless for zone-level control, including sensors and outputs
  • GCL+ programmable: Button layout, display, backlit colors, EnOcean wireless control for HVAC and room peripherals like door contact, motion sensor, lighting and blinds control
  • RGB backlight with large LCD screen allows choice of colors to indicate conditions, alarms and night mode 
  • Capacitive touch zones allow custom button sizes
  • Slider to quickly adjust setpoint or tap for precise changes
  • USB Service port, software enabled or disabled. Service tool not required.
  • Easy network set up using NFC with smartphone, or configuration page in web browser

1 10kΩ input (16 bit A/D)


2-line custom segmented display withicons

2 rows of 4 capacitive touch zones, allowing up to 8 individual buttons or combined to form larger buttons 

RGB LED backlight for multicolor LCD and button illumination

Digital Temperature Sensor
+/- 0.2°C (+/- 0.36°F)

Digital Humidity Sensor (Optional)
Accuracy +/- 3%

CO2 Sensor (Optional)
Dual Beam, Self Calibrating NDIR Detection
Range: 0-2000 ppm
Accuracy @ 25°C (77°F):
± (50 ppm + 2% of value)
Temperature Dependence: 2 ppm/°C
(1 ppm/°F) typical
Pressure Dependence: 0.13% of reading per mm Hg
Stability: 20 ppm/year (typical)

Occupancy Sensor (Optional)
Passive infrared motion (PIR) sensor
Range: 5 m (16.4 ft.)
Coverage: 100° Horizontal

Screw-type terminal connectors

Wiring Class
Class 2 / SELV

Power (Wi-Fi option)
24 V AC/DC, 10 VA / 3 W max

Power (without Wi-Fi option)
24 V AC/DC, 8 VA / 2 W max

32-bit processor
Internal A/D, Flash and RAM

BACnet/IP over Wi-Fi (802.11B and G)
EnOcean (902 MHz or 868 MHz)
RS-485 port
Delta LINKnet (up to 76800 bps)
Supports up to 4 LINKnet devices,
max 2 DFM devices
BACnet MS/TP (up to 76800 bps)

USB Service Port
Near Field Communication (NFC)
Passive 2-way short rang

0° to 55°C (32° to 131°F)
10 - 90% RH (non-condensing)

With SM backplate:
13.3 x 9.3 x 2.3 cm (5.3 x 3.6 x 0.9 in.)
With SC (CO2) backplate:
13.3 x 9.3 x 4.3 cm (5.3 x 3.6 x 1.7 in.)
Mounted Surface Profile
Surface Mount (SM, SC backplates):
2.3 cm (0.9 in.)

168 g (0.37 lb)

IP Rating

CE (pending)
FCC Class B (pending)

UL 916 Listed

  • Network Sensors & IO Expansion Modules