Supplied from China
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.





Floor Heating Thermostat
Output and supply version summary
Specifications & manual · Heating questions · Compare heating controls
Programmable thermostat for electric and hydronic floor heating. Choose a 16A electric-heating output or 3A water-heating valve output, with room/floor sensor selection and optional Smart Life WiFi.
These diagrams show separate output configurations, not interchangeable terminals on one unit. Match the supplied terminal label, voltage and load rating before installation. The illustrated wide-voltage hardware and the 220 ±10 VAC manual version have different ratings; use the specification supplied with your ordered version.
Product selection summary
| Heating output | 16 A electric-heating or 3 A hydronic valve configuration. These are separate ordered versions, not interchangeable terminals on one product. |
|---|---|
| Supply version | The manual lists 220±10 VAC; gallery images also show other supply hardware. Match the supplied terminal label, voltage and wiring diagram. |
| Sensors and timing | Room, floor or combined sensing. Manual mode and weekly period schedule are described for AE-668D; confirm the supplied firmware and required programme. |
Specifications and manual · Supply and timer questions · Compare heating controls
Factory supply · B2B
ACMELEC manufactures and supplies HVAC controls from Nanjing, China, for distributors, installers and OEM/ODM projects.
Models, protocols and software versions may be counted separately. Pricing and production lead time depend on the confirmed configuration and quantity.
After requirements and payment are confirmed: stock samples approximately 3 working days; functional/protocol configuration 15–20 working days; logo, manual or packaging adjustments approximately 10 working days.
Specify electric or water floor heating, load/current or valve specifications, supply voltage and room/floor sensor requirements. Outputs and functions depend on the ordered model.
Specifications and installation manual
Match the electric, hydronic or other ordered heating output to the installation. Review the room/floor sensor setting and the manual with the supplied product label before choosing a sample.
| Temperature sensor | Thermistor; internal, external or combined mode |
|---|---|
| Control accuracy | ±1°C |
| Setpoint range | 5-60°C, adjustable |
| Power supply | 220±10 VAC in the manual; match the supply label and wiring diagram for the ordered hardware version |
| Electric heating output | 16A |
| Water heating output | 3A valve control |
| Floor protection | Adjustable floor-temperature warning limit |
| WiFi option | Smart Life app connection |
| Installation | 60 mm standard mounting-hole spacing |
| Housing | PC + ABS flame-retardant material |
| Model | AE-668D / WiFi version |
|---|---|
| Heating systems | Electric or hydronic floor heating |
| Sensor choices | Room, floor or room + floor |
| Programming | Manual mode and weekly period schedule |
| Protection | Low-temperature protection and floor-temperature warning |
| Project confirmation | Heating type, output current, sensor and WiFi requirement |
Product overview
AE-668D Floor Heating Smart Thermostat is positioned for electric or water floor heating control. It is suitable for distributors and project buyers who need smart heating schedules, sensor support and OEM options in one product line.
This model belongs to the Floor Heating Thermostat family. Confirm the exact HVAC model, wiring interface and required control configuration before requesting a quotation.
Application details
To speed up quotation, include HVAC brand/model, protocol requirement, order quantity, target market, logo needs and certification requirements.
Review the linked manual and request the wiring diagram for the exact ordered output and supply version before installation.
Function details
Select the correct output and sensor configuration for the actual floor-heating system.
Direct control option for compatible electric floor-heating loads.
Valve-control option for hydronic floor-heating systems.
Use room sensing, floor sensing or both together for comfort and floor protection.
The optional WiFi version supports remote app operation and scheduling.
Technical checklist
Exact configuration depends on project requirement, so ACMELEC confirms the real HVAC system before quotation and sample preparation.
Specification summary
| Model | AE-668D |
|---|---|
| Product family | Floor Heating Thermostat |
| Heating systems | Electric or hydronic floor heating |
| Power supply | 220±10 VAC in the manual; match the supply label and wiring diagram for the ordered hardware version |
| Rated output | 16A electric / 3A water |
| Setpoint range | 5-60°C |
| Accuracy | ±1°C |
| Sensor modes | Internal, external or combined |
| Smart option | Smart Life WiFi |
| Installation | 60 mm standard spacing |
| Selection points | Heating type, output current, sensor and WiFi requirement |
Verified product answers
Both versions are available: 16 A for electric heating and 3 A for water-heating valve control.
Yes. It can use the internal room sensor, an external floor sensor or combined sensing.
Yes. Request the Smart Life WiFi version when asking for a quotation.
Samples, MOQ and lead time
The page identifies different supply hardware versions: the manual lists 220±10 VAC, while illustrated wide-voltage hardware has a different rating. Confirm the actual ordered unit label, voltage and matching terminal diagram. Do not transfer the rating from a photograph to another hardware version.
No. This page describes AE-668D with manual mode and a weekly period schedule. The AE-940D page describes a single timed on/off function. Confirm the required programme and supplied firmware; a similar display or optional Smart Life WiFi does not establish identical local scheduling.