SENZ WIFI Touchscreen Thermostat
Description
The Raychem SENZ WIFI is a programmable touchscreen thermostat designed for electrical underfloor heating. It offers app-enabled remote control, voice control compatibility, ease of use, and an aesthetic design to enhance comfort from underfloor heating systems.
It is compatible with Amazon Alexa and Google Assistant for voice-controlled heating.
Product Properties
Attractive Design
- Flat front with a full-color capacitive touchscreen.
- Unique Raychem look and feel.
- Mountable as a stand-alone thermostat or integrated into single or multiple gang switch gear frames.
Ease of Use
- Intuitive swipe and touch navigation.
- Large icons in the central menu.
- Scroll functionality for list selection.
- Wheels for temperature selection.
7 Operating Modes
- 3 Economic programs.
- 1 Constant mode.
- 1 Flexible Boost mode (allows temporary override of economic or constant modes).
- 1 Holiday mode.
- 1 OFF mode.
Energy Efficient
- 3 Economic programs tailored to user needs.
- Smart and precise adaptive function that calculates when to start heating to reach the desired temperature.
- Adapts to the environment and floor construction.
- Includes a window open function to detect sudden temperature drops.
- Optimum heat management utilizing two sensors: one ambient and one floor sensor.
Flexible
- Compatible with standard switch gear frames.
- Compatible with a variety of floor sensors.
- Offers 3 economic modes with flexible event scheduling per day.
Wireless
- Supports WiFi 802.11 b/g/n.
Remote Control
- Homeowners can monitor, control, and program the Raychem SENZ WIFI thermostat using the free SENZ-WIFI smartphone app (available for iOS and Android).
- Heating can be controlled via Amazon Alexa compatible smart speakers. Refer to document EU1800 for setup details.
- Heating can also be controlled via Google Assistant compatible smart speakers. Refer to document EU1801 for setup details.
- System integrators can utilize the Open RESTful API for custom integration with existing BMS systems. Full API documentation is available at: https://api.senzthermostat.nvent.com/
Technical Data
| Specification | Details |
|---|---|
| Supply voltage | 230 VAC (+10%/-15%), 50Hz |
| Relay output | Heating cable 230 V, max 13A (max 100 m T2Red) |
| Temperature range floor sensor | +5°C to +40°C |
| Temperature range room sensor | +5°C to +40°C |
| Limitation of range | Low +5°C / High +40°C |
| Ambient temperature-operation | 0°C to +60°C |
| Ambient temperature-transport | -20°C to +70°C |
| Accuracy floor sensor | 0.2°C in a range 0°C to +40°C |
| Temperature control method | Pulse width modulation with Proportional integral control loop |
| Accuracy room sensor | 0.2°C in a range 0°C to +40°C |
| Control modes |
|
| 7 Operating modes |
|
| Back-up for set values | Non-volatile memory |
| Back-up for time and date | Minimum 5 years of storage; Minimum 10 years if powered 50% of the time |
| Protection class | IP21 (Can be upgraded to IP44 using the accessory gasket 1244-017779 R-SENZ-ACC-IP44GASKET) |
| Wireless Standard | IEEE 802.11 b/g/n |
| Terminals | 2,5 mm² Screw cage clamp |
| Floor sensor | 12kΩ @ 25°C +/- 0.75°C (no:38165) |
| Max length of floor sensor | 100 m, 2 x 1.5 mm² (230 VAC cable) |
| Diameter sensor cable | 4.5 mm |
| Diameter sensor tip | 5 mm |
| Compatibility with other sensors | 2, 10, 12, 15, 33 & 100kΩ sensors |
| Dimension with Raychem frame | 85.5 x 84.3 x 41.9 mm |
| Color Extra front | RAL9003 |
| Approvals | CE, VDE |
Diagrams and Dimensions
Wiring Diagrams
Direct connection (single heating circuit): For heater circuits less than 13 Amps constant wattage cable or maximum 100 meters of T2Red cable. The diagram shows connections for L, N, and a 12K NTC sensor.
Connection via contactor (multiple heating circuits): For total heating circuits exceeding 13 Amps constant wattage cable or exceeding 100 meters of T2Red cable. This configuration involves a contactor (K1) with an integral suppression device and connections for L1, L2, L3, N, PE, and a 12K NTC sensor.
Dimension Drawings
Raychem Frame: The thermostat unit with the Raychem frame has dimensions of approximately 85.5 mm width, 84.3 mm height, and 21.9 mm depth. The mounting frame itself is approximately 59 mm wide and 50 mm high.
Square Frame: The thermostat unit fitted into a square frame has dimensions of approximately 87 mm width and 87 mm height. The depth is approximately 22.1 mm, with a mounting depth of 20.6 mm.
Round Frame: The thermostat unit fitted into a round frame has dimensions of approximately 81.6 mm width and 81.6 mm height. The depth is approximately 22.1 mm, with a mounting depth of 20.6 mm.
Ordering Information
| Product | Part Number | Internal Code |
|---|---|---|
| Thermostat | R-SENZ-WIFI | 1244-017778 |
| IP44 Gasket | R-SENZ-ACC-IP44GASKET | 1244-017779 |
| Silver colored front and Schneider Exxact frame | R-SENZ-ACC-METALFRONT | 1244-017780 |
| Anthracite colored front and Schneider Exxact frame | R-SENZ-ACC-ANTHRACITEFRONT | 1244-017781 |
| Spare sensor | U-ACC-PP-14-SENSOR-N10K* | 1244-002952 |
| White Schneider Exxact frame | R-SENZ-ACC-WHITEFRAME | 1244-018579 |
| RAL9010 White colored front | R-SENZ-ACC-WHITE-RAL9010 | 1244-019771 |
* If the 1244-002952 spare sensor is used, the sensor type needs to be set to 10kΩ in the sensor settings menu (Settings Menu / Settings / Advanced / Sensor Type).
Contact Information (UK/Ireland)
Tel: 0800 969 013
Email: SalesUK@chemelex.com
