Quick Summary
The HTW-WF02-FC-2 2 Pipe Thermostat is designed for standard fan coil systems with heating and cooling changeover. It controls a 3-speed fan and two on/off motorised valves for heat and cool operation. The thermostat works as a standalone controller without communication, providing stable and simple control logic for common FCU room applications.
This page explains how the 2 Pipe Thermostat operates in real FCU systems and why its control logic suits typical installations. It also includes wiring reference, key parameters, and model selection guidance, followed by project considerations, customisation options, and common questions with clear answers.
Key Features
(This section explains the core control functions and their practical value.)
(01) 2-pipe system compatibility
The 2 Pipe Thermostat supports standard 2-pipe fan coil systems with seasonal heating and cooling changeover. This matches common project layouts and simplifies system design and installation.
(02) Standalone control logic
The thermostat operates without communication protocols, making it suitable for projects that do not require BMS integration. This reduces commissioning complexity and improves system reliability. We have related model HTW-WF02-FC-2W which can support WiFi function.
(03) 3-speed fan control
Three fan speeds allow flexible airflow adjustment. This helps maintain stable room comfort while keeping noise levels controlled in daily operation across different room conditions.
(04) On/off valve control
The 2 Pipe Thermostat controls two on/off motorised valves for heating and cooling. This aligns with typical FCU system design and ensures simple and dependable valve operation.
Product Design and Display
(This section shows the product’s dimensions and the interface layout.)
Technical Specifications
(This section lists the key parameters for reference and project confirmation.)
| Power Supply | 100~250VAC |
| Frequency | 50/60Hz |
| Fan Relay Load | 5A (3A inductive) |
| Valve Relay Load | 3A (1A inductive) |
| Accuracy | ±0.5°C or ±1°F |
| Sensor | NTC3950, 10K |
| Setpoint Range | 5~35°C |
| Installation | EU or standard electric box |
Wiring Diagram
(This section provides the wiring reference diagram for correct installation.)
Model Code Guide
(This section explains what configuration the model code refers to.)
| 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 |
| Example | HTW-WF02-FC-xx: if xx = 2, it stands for a 2-pipe system with on/off valve control and standalone operation. Most sub-models are ready-made. Kindly contact us to confirm availability. |
Project Fit & Customization
(This section explains where the product can be used, its limits, and OEM/ODM options.)
The 2 Pipe Thermostat is suitable for basic FCU systems that do not require central control or communication. It is not suitable for projects needing Modbus, BACnet, or remote access through WiFi systems.
Despite these limits mentioned above, ODM customisation can be discussed based on project needs. Functions such as communication or control logic may be adjusted where technically feasible and depending on project volume.
OEM customisation is also supported. Options include logo printing, colour selection, and label design. These help match the thermostat to project branding and installation requirements.
Certificates and Compliance
Frequently Asked Questions
Q1. Can this 2 pipe thermostat be used in both heating and cooling systems?
Yes, it supports 2-pipe systems with heating and cooling changeover for standard FCU applications.
Q2. Does it support building management system integration?
No, this 2 Pipe Thermostat is a standalone unit without communication for BMS integration.
Q3. Is this 2 pipe thermostat suitable for hotel projects?
Yes, it can be used in hotels where simple standalone control is sufficient and no central system is required.
Q4. Do you support samples and what is the MOQ?
Yes, samples are available. MOQ is usually 300 units, but smaller quantities can be discussed.
Q5. How can we place an order?
Please contact us to confirm requirements. We will issue a PI. Payment supports TT, PayPal, Visa. Terms include EXW, FOB, DAP.
Q6. How will the goods be shipped?
Courier delivery takes about 7 days. Air freight is similar. Sea shipping usually takes over one month depending on destination.
Related Thermostat Models
For projects requiring communication, you may refer to below links, or contact us for selection support.
The 2 Pipe Thermostat is suitable for simple FCU systems where stable standalone control is required. It provides reliable operation with clear logic. It supports practical deployment in standard room projects. [More models: fan coil thermostat]
