Quick Summary
The HTW-31-DT12F hotel thermostat is designed for fan coil unit systems. It controls a 3-speed fan and on/off valves, and supports both 2-pipe and 4-pipe configurations. It operates in heating and cooling modes with stable control logic.
This page explains key functions, system control logic, and technical parameters. It also covers typical project questions and selection guidance, with practical reference for hotel thermostat applications. Modbus integration and project customisation options are also outlined.
Key Functional Highlights
(This section introduces the main control functions and their engineering value in the specific HVAC system.)
(01) 4.3 inch colourful touch screen
The large screen provides clear status visibility during daily operation. It helps we check mode, setpoint, and fan speed easily. This improves usability in hotel thermostat applications and reduces operational errors.
(02) 3-speed fan control
Three fan speeds allow flexible airflow adjustment across different room conditions. This helps maintain comfort without complex control logic. It also supports stable operation and easier commissioning in fan coil systems.
(03) 2/4 pipe (on/off)
The thermostat supports both 2-pipe and 4-pipe systems with on/off valves. This allows use across different HVAC designs. It reduces model variation and helps simplify deployment in mixed projects.
(04) Keycard for the hotel
The keycard input helps manage room energy use when guests are absent. It can turn off or limit operation automatically. This is useful in hotel thermostat projects for energy saving and system control.
(05) Modbus for BMS
Modbus communication allows integration with building management systems. It enables central monitoring and remote control. This supports better system coordination and long-term facility management.
If the Wi-Fi feature is preferred, one may refer to this model instead (please click → HTW-31-DT12FWF).
Product Design and Display
(This section shows the thermostat appearance, screen interface, or installation dimensions of this specific model.)
Technical Specifications
(This section lists the key technical parameters relevant to this thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply | 230Vac, 50/60Hz |
| Current Load | Fan Relay 5A |
| Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5~35°C |
| Warranty | 2 Year |
| Installation | 86x86mm box or EU round box |
Wiring Diagram
(This section provides the wiring diagram for this thermostat in the relevant HVAC control system.)
Project Fit & Customization
(This section describes project suitability, system limitations, and available customization options.)
This model is not suitable for modulating valve systems using 0–10V signals. It does not support EC fan control, and it requires stable 230Vac power. It is not designed for low voltage systems or special control environments.
Despite these limitations mentioned above, ODM customisation can be discussed. Functions such as Wi-Fi control or protocol changes can be considered. Integration with specific BMS requirements may also be evaluated based on project needs.
OEM services are available for project-based needs, including logo printing and colour changes. Label adjustments and packaging updates can also be arranged. Interface language options may be customised if required.
Certificates and Compliance
(This thermostat complies with European market requirements and is supported by certifications such as CE, RoHS, LVD test reports, EMC test reports, etc)
Exhibition Moments
(Our team regularly participates in international HVAC exhibitions such as Febrava in Brazil, The Big 5 in Dubai, and ISK-SODEX in Turkey, etc.)
Frequently Asked Questions
Q1: Can this hotel thermostat work with both 2-pipe and 4-pipe systems?
Yes, it supports both system types with on/off valve control. This allows flexible use in different FCU layouts and helps simplify model selection. It is suitable for standard hotel thermostat projects.
Q2: Does it support Modbus communication with BMS?
Yes, Modbus is available for integration with BMS systems. It allows remote monitoring and control, which helps central system management. This improves operational efficiency in large buildings.
Q3: How does the keycard function work in hotel projects?
The keycard input detects room occupancy status. When removed, the system can stop or limit operation automatically. This helps reduce unnecessary energy use and improves control discipline.
Q4: Is an external sensor supported?
This model uses a built-in temperature sensor as standard. External sensor support is not included by default. Custom options may be discussed depending on project requirements.
Q5: What is the MOQ and can we get samples?
Samples are supported for evaluation. The usual MOQ is 300 units, while smaller trial orders such as 100 units can be discussed. This helps early-stage project validation.
Q6: How to place an order and arrange shipment?
We confirm requirements first and then provide a PI. Payment supports TT, PayPal, and Visa. Trade terms such as EXW, FOB, and DAP are available based on project needs.
Q7: How long does it take to prepare the products?
Standard samples can be ready within 7 days. Custom models usually take 3–5 weeks depending on features. Bulk orders around 300 units typically require about one month.
Q8: How will the products be shipped?
Courier delivery is recommended for most orders and takes around 7 days. Air freight is also about 7 days. Sea shipping usually takes around one month depending on route.
Need Help Choosing the Right Model?
If we are unsure which model fits the project, we can contact the team for support. We can review the system and suggest a suitable solution.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
HVAC projects require stable room temperature control and clear system coordination. This hotel thermostat manages fan coil operation, valve switching, and Modbus communication. It supports central monitoring, improves system stability, and simplifies daily facility management.
