Quick Summary
HTW-FC01-2P is a digital thermostat for 2-pipe fan coil systems. It controls a single-speed fan and on/off valve. It supports cooling and heating operation in standard FCU applications. The 24Vac design helps match common control power requirements.
This page explains how this model works in practical FCU projects. It covers function value, control logic, and key technical points. It also answers common project questions and selection concerns. Customisation options can be discussed based on actual needs.
Key Functional Highlights
(This section introduces the main control functions and engineering value of this digital thermostat in FCU systems.)
(01) 24Vac power supply
This digital thermostat uses a standard 24Vac power input. It fits well with North American HVAC systems, reducing installation mismatch risks and helping maintain stable operation across different control environments.
(02) 1-speed fan control
It controls a single-speed fan output. It is suitable for simple FCU systems, reducing wiring complexity on site and improving system stability with fewer control steps.
(03) 2 pipe on/off valve control
This model supports 2-pipe systems with on/off valve control. It switches between heating and cooling based on system supply, simplifying valve control logic and making it suitable for standard residential or light commercial projects.
If the project requires the 0-10V modulating valve control, one may refer to this model instead (please click → HTW-FC01-2PM).
(04) Energy saving mode
It includes an energy saving mode. It adjusts temperature settings when needed, helping reduce unnecessary energy use, especially in unoccupied or standby conditions.
(05) Programmable function
This digital thermostat supports programmable schedules. It allows time-based temperature control, improving comfort during occupied hours and reducing the need for manual adjustment in daily operation.
Product Design and Display
(This section shows the appearance, screen interface, or installation dimensions of this digital thermostat model.)
Technical Specifications
(This section lists the key technical parameters relevant to this digital thermostat model.)
| Parameter | Value |
|---|---|
| Power Supply | 24Vac, 50/60Hz |
| Current Load | Fan Relay 5A; Compressor Relay 5A |
| Built-in Sensor | NTC3950, 10K |
| Temperature Accuracy | ±0.5°C |
| Set-Point Range | 5~35°C |
| Protection Class | IP20 |
| Warranty | 2 Year |
| Installation Box | EU round box or Standard 86x86mm Box |
Wiring Diagram
(This section provides the wiring diagram for this digital thermostat in the relevant HVAC control system.)
Model Code Guide
(This section explains what configuration the model code refers to for this digital thermostat range.)
| Fan coil series | xx stands for |
| EC | EC fan |
| 2/4 | 2 for 2-pipe on/off; 4 for 4-pipe on/off system |
| M | Modulating valve control |
| W | Wi-Fi |
| N/B | N for Modbus; B for BACnet |
| K/E | K for Keycard; E for External sensor |
| 24 | Powered by 24V, or with 24V output for 0-10V valve |
| Example HTW-WF11-FC-xx: if xx = 2EN, it stands for a 3-speed fan, 2-pipe system with on/off valve control, external sensor function, and Modbus communication. Most sub-models are ready-made. Kindly contact us to confirm availability. | |
Project Fit & Customisation
(This section describes project suitability, system limitations, and available customisation options for this digital thermostat.)
This digital thermostat is not suitable for multi-speed fan systems or EC fan control. It also does not support 0–10V valve control. Projects needing BMS integration, app control, or remote access should use another type. It is better suited to simple standalone FCU applications.
Despite these limitations, some function changes can still be discussed. We may evaluate options such as Wi-Fi, Modbus, or adjusted control logic. Feasibility depends on the project target and required quantity. We prefer to review the application before confirming details.
OEM customisation is also available. We can discuss logo printing, label changes, and colour adjustment. Packaging changes may also be possible for suitable quantities. Please feel free to get in touch with us for discussion.
Certificates and Compliance
(This digital 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: Is this model suitable for all FCU systems?
No, it is mainly for simple 2-pipe FCU systems. It does not fit 4-pipe or modulating valve projects. Please check fan type and control requirement before selection.
Q2: Does this model support BMS communication?
No, this version is a standalone controller. It does not support Modbus or BACnet. For central control projects, another model is needed.
Q3: Does it use an external sensor?
This model uses a built-in temperature sensor. It does not include external sensor input as standard. For special sensing needs, please feel free to get in touch with us.
Q4: When is this model a suitable choice?
It is suitable for simple FCU projects with one fan speed. It is often a practical option where control logic should stay clear. It also helps reduce site wiring complexity.
Q5: What is the MOQ and do you support samples?
We support samples for testing. The usual MOQ is 300 units. Smaller trial quantities, such as 100 units, can also be discussed.
Q6: How do we place an order and arrange shipment?
Please share your requirements with us first, and we will provide a PI. We support TT, PayPal, Visa, and similar payment methods. Trade terms can include EXW, FOB, DAP, and others.
Q7: How long do you need to prepare the products?
Standard non-custom samples are usually sent within 7 days. If customisation is needed, we assess the quantity and required functions first. Program changes usually take 3 to 5 weeks, and 300 units often need about one month.
Q8: How can the goods be shipped?
We usually suggest courier service such as FedEx, DHL, or UPS. Door-to-door delivery is often about 7 days. Air freight is similar, while sea shipping is usually one month or more.
Need Help Choosing the Right Model?
If you are comparing several options, please feel free to get in touch with us. We are happy to discuss your project and help with selection.
Related Thermostat Models
For more details, please click here directly: Wi-Fi Thermostats | Modbus Thermostats | BACnet Thermostats
Final Note
In FCU projects, stable room control helps balance comfort, energy use, and daily operation. This model manages basic fan coil switching in a simple control setup. It supports steady system running and helps reduce routine management effort.
