Quick Summary
The HTW-81-FN7 Munti Stage Thermostat is designed for heat pump systems. It supports multi-stage heating and cooling control. The unit uses 24VAC power supply. It manages up to 3 heating and 2 cooling stages. The internal NTC sensor ensures stable temperature detection and system response.
This page explains how the Munti Stage Thermostat works in real projects. It covers control logic, wiring, and key parameters. It also includes installation guidance and common questions. Customisation options are available based on project requirements.
Key Features
(This section explains the core control functions and their practical value.)
(01) Multi-stage control for complex systems
This Munti Stage Thermostat supports up to 3 heating and 2 cooling stages. It allows step-by-step system control. This improves energy efficiency. It is suitable for heat pump systems with staged output requirements. For the WiFi version, please refer to this link: HTW-81-FN7WF.
(02) Compatible with conventional and heat pump systems
The thermostat supports multiple system types. It works with both conventional and heat pump configurations. This increases flexibility. It can be used across different HVAC system designs.
(03) Stable 24VAC powered operation
The unit uses 24VAC power supply for continuous operation. This ensures stable performance. It is suitable for standard HVAC control systems. It avoids battery replacement issues.
(04) Accurate temperature sensing and display
The thermostat uses an NTC thermistor for temperature detection. The display accuracy reaches ±0.5°C. This ensures reliable control. It helps maintain stable indoor comfort.
Product Design and Display
(This section shows the product’s dimensions and the interface layout.)
The thermostat features a rectangular design with LCD display. The screen shows temperature and system status clearly. Button operation is simple. It fits standard wall mounting installations.
Technical Specifications
(This section lists the key parameters for the Munti Stage Thermostat reference and project confirmation.)
| Parameter | Value |
|---|---|
| Power Supply | 24VAC, 50Hz |
| Power Consumption | 2W |
| Control Output | <1A (Resistive load) |
| Temperature Range | 5°C – 37°C |
| Accuracy | ±0.5°C |
| Sensor | NTC thermistor |
| Dimension | 136 × 94 × 26 mm |
| Installation Size | 60mm / 82mm hole pitch |
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.)
| 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 |
| 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 is not suitable for direct high voltage systems. It requires 24VAC supply. It does not support WiFi or BMS protocols. It is not designed for simple single-stage systems.
Despite these limits mentioned above, ODM customization can be discussed. Control logic or stage configuration can be adjusted. Interface changes may be possible. Final design depends on project needs.
OEM customisation is supported for branding. Logo printing and label design are available. Colour changes may be discussed. These options help meet different market requirements.
Certificates and Compliance
Frequently Asked Questions
Q1. What systems can this Munti Stage Thermostat control?
It supports multi-stage conventional and heat pump systems, including up to 3 heating stages and 2 cooling stages, depending on system configuration.
Q2. Does this Munti Stage Thermostat support WiFi or remote control?
No, this model is a standalone Munti Stage Thermostat and does not support WiFi or remote access.
Q3. What power supply is required?
This thermostat requires a 24VAC power supply. It is commonly used in HVAC control systems and should be installed according to wiring standards.
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 other thermostat models, please contact us for project selection support and technical advice. You also can refer to below links:
Electric Underfloor Heating Thermostat
Water Underfloor Heating Thermostat
This Munti Stage Thermostat is suitable for heat pump systems requiring staged control. For WiFi or simpler systems, other models are more suitable.【More models: heating thermostat】
