Quick Summary
The HTW-81-FN7WF Munti Stage Thermostat is designed for heat pump systems. It supports multi-stage heating and cooling control. The unit uses 24VAC power supply. It includes WiFi connectivity for remote control. The internal NTC sensor ensures stable temperature sensing and accurate system response.
This page explains how the Munti Stage Thermostat works in real use. It covers control logic, wiring, and technical parameters. It also includes installation guidance and common questions. Customisation options can be discussed based on project needs.
Key Features
(This section explains the core control functions and their practical value.)
(01) Multi-stage control for heat pump systems
This Munti Stage Thermostat supports up to 3 heating and 2 cooling stages. It allows step control of system output. This improves system efficiency. It is suitable for complex heat pump control requirements.
(02) WiFi connectivity for remote operation
The thermostat includes WiFi function for remote access. Users can adjust temperature settings through mobile applications. This improves convenience. It is useful for residential and light commercial projects. If you need standalone model, you can refer to this link: HTW-81-FN7.
(03) Flexible system compatibility
The thermostat supports both conventional and heat pump systems. It fits different project requirements. This reduces model selection complexity. It helps standardise thermostat use across projects.
(04) Accurate temperature control performance
The thermostat uses an NTC thermistor sensor. It provides ±0.5°C display accuracy. This ensures stable control. It improves indoor comfort and system response consistency.
Product Design and Display
(This section shows the product’s dimensions and the interface layout.)
The thermostat uses a clean rectangular design with LCD display. The screen shows temperature clearly. Touch buttons allow simple operation. It is suitable for standard wall installation in HVAC systems.
Technical Specifications
(This section lists the key parameters for reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 24VAC, 50Hz |
| Power Consumption | 2W |
| Output | <1A (Resistive load) |
| Temperature Range | 5°C – 37°C |
| Display Accuracy | ±0.5°C |
| Dimension | 136 × 94 × 26 mm |
| Wiring | Terminal connection |
| Installation Size | 60mm / 82mm hole pitch |
Wiring Diagram
(This section provides the wiring reference diagram for correct installation.)
The thermostat uses terminal wiring for connection. It supports multi-stage output signals. Correct wiring is required for system operation. Follow standard HVAC wiring rules during installation.
Model Code Guide
(This section explains what configuration the model code refers to.)
| Heating series | xx stands for |
|---|---|
| 3A | Water Heating, with NC+NO+COM output terminals |
| 16A | Electric Underfloor Heating, with L+N line voltage output terminals + External Sensor |
| NV | Boiler Heating, with Non-Voltage Dry Contact |
| 1 | Standalone |
| 3 | Wi-Fi |
| Example HTW-WF11-xx: if xx = 16A3, it stands for electric floor heating with external sensor support and Wi-Fi function. 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.)
This Munti Stage Thermostat requires 24VAC power supply. It is not suitable for 230V direct load systems. It is not designed for simple single-stage applications. It also needs stable WiFi environment for remote function.
Despite these limits mentioned above, ODM customization can be discussed. Communication protocols or control logic may be adjusted. UI interface changes are possible. Final design depends on project evaluation and feasibility.
OEM customisation is supported for branding. Logo printing and label design are available. Colour customisation can be discussed. These options help align with different market and distributor needs.
Certificates and Compliance
Frequently Asked Questions
Q1. What systems does this Munti Stage Thermostat support?
It supports both conventional and heat pump systems, including multi-stage configurations up to 3 heating stages and 2 cooling stages.
Q2. Does this Munti Stage thermostat support remote control?
Yes, this Munti Stage Thermostat includes WiFi function, allowing remote control through mobile applications for temperature adjustment and monitoring.
Q3. What power supply is required?
This munti stage thermostat requires a 24VAC power supply. It should be connected according to HVAC wiring standards for stable and safe operation.
Q4. What is the MOQ and can we get samples?
We support sample orders. Standard MOQ is 300 units, but smaller quantities can be discussed for testing or initial project evaluation.
Q5. How do we place an order?
Please contact us with your requirements. We will provide a proforma invoice. Payment supports TT, PayPal, Visa, and terms like EXW, FOB, DAP.
Q6. How will the products be shipped?
Express delivery is recommended and takes about 7 days. Air shipping is similar. Sea shipping usually takes over one month depending on destination.
Related Thermostat Models
For projects need other thermostat models, please contact us for selection advice and project support. You can also refer to below links:
Electric Underfloor Heating Thermostat
Water Underfloor Heating Thermostat
This Munti Stage Thermostat is suitable for heat pump systems with staged control needs. For simple systems or no WiFi requirement, other models are more suitable. 【More models: heating thermostat】
