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





Floor Heating Thermostat
Specifications & document scope · Heating selection questions
AE-5503D Floor Heating Smart Thermostat for electric and hydronic floor heating, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
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.
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 document scope
Supply reference: the manual parameter table and wiring illustrations show different supply ranges. Follow the ordered product label and the matching wiring diagram rather than inferring the supply from a shared illustration.
Select the heating output, room/floor sensor arrangement and smart-control version for the actual installation. Confirm the product label and model-matched wiring before using a document for installation.
| Temperature sensing element | NTC / thermistor sensor |
|---|---|
| Control accuracy | ±1°C |
| Heating application | Electric floor heating or hydronic floor heating by configuration |
| Sensor route | Built-in sensor and external floor sensor route by selected model |
| Load / valve output | Confirm electric load or water-heating valve output before order |
| Smart options | WiFi, Zigbee, Tuya, Modbus, RF433 or wired route by project configuration |
| OEM/ODM scope | Logo, panel, packaging, firmware and manual language support |
| Manual electric-heating reference | 16 A configuration; confirm the installed load and ordered output |
| Manual water-heating reference | 3 A configuration; match the actuator and wiring |
| Manual sensor choices | Internal, external, or internal plus external |
| Manual programming reference | Four working-day periods and two off-day periods; confirm firmware and schedule |
| Shared model | AE-5503D |
|---|---|
| Product form | Wall-mounted floor heating smart thermostat |
| Main use | Electric or hydronic floor heating room control |
| System check | Confirm heating type, sensor route, load/current or valve output |
| Protocol route | WiFi, Zigbee, NTC |
| Project confirmation | Voltage, load, sensor, wiring and target market |
Product overview
AE-5503D 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.
Open English manualFunction details
Confirm which control functions are included in the ordered configuration. Do not assume that every protocol or feature is available on every version.
Heating schedule and room temperature control by selected configuration
Confirm the required WiFi or Zigbee configuration and NTC sensor specification before ordering
Sensor and load configuration to be confirmed before order
OEM logo, packaging and manual language support
Technical checklist
Exact configuration depends on project requirement, so ACMELEC confirms the real HVAC system before quotation and sample preparation.
Specification summary
| Model | AE-5503D |
|---|---|
| Product family | Floor Heating Thermostat |
| Application | Electric and hydronic floor heating |
| Protocol / function options | WiFi, Zigbee, NTC |
| Compatible system | ACMELEC |
| OEM/ODM | Logo, panel, firmware, packaging and manual support available by project |
| Documents | English manual or technical file can be supplied when available |
| Buyer type | HVAC distributors, brand owners, system integrators and project buyers |
| Heating system | Electric or hydronic floor heating |
| Control focus | Room heating schedule and temperature control |
| Function options | WiFi, Zigbee, NTC |
| Common projects | Residential heating, smart home channels and apartments |
| Selection points | Heating type, sensor, load/valve, voltage and market certification |
Product FAQ
The linked manual lists a 16 A electric-heating configuration and a 3 A water-heating configuration, with separate wiring examples. Confirm the heating load or actuator requirements and use the rear-terminal diagram supplied for the ordered version.
The manual lists internal, external, and combined internal-plus-external sensor selection. It also includes a floor-temperature warning setting. Confirm the sensor supplied and configure the limit for the installation and floor finish.
The manual describes manual and automatic operation, with four working-day periods and two off-day periods in its programming table. Check the supplied firmware and required day schedule before ordering; the listed temperatures are example defaults, not a recommendation for every floor.
Explore the range
Floor Heating Thermostat
AE-5501D Floor Heating Smart Thermostat for electric and hydronic floor heating, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
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AE-5507D Floor Heating Smart Thermostat for electric and hydronic floor heating, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
Floor Heating Thermostat
AE-5509D Floor Heating Smart Thermostat for electric and hydronic floor heating, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
Samples, MOQ and lead time
The linked WiFi manual is not a specification for every Matter firmware version. Compare the hydronic Matter thermostat, electric floor heating Matter thermostat and boiler Matter thermostat, then confirm the ordered output and available ecosystem controls.