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







FCU Thermostat
Specifications & document scope · FCU selection questions
AE-940K FCU Smart Thermostat for fan coil unit hvac control, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
The standard 5503K and 5509K versions are rated 5A. Photos with a 3A label are wiring-layout references for another hardware version, not the rating label of the standard 5A product. Select the diagram for the ordered pipe, valve and fan configuration, and follow the terminal label supplied with the unit.
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 2-pipe or 4-pipe system, valve voltage and wiring, fan speed or 0–10V control, and required protocol. Confirm the configuration against the model wiring diagram.
Specifications and document scope
Confirm the FCU arrangement, fan and valve outputs, power supply and selected smart-control version. Check the document scope below against the ordered product label and wiring diagram.
| Temperature sensing element | NTC / thermistor sensor |
|---|---|
| Control accuracy | ±1°C |
| Control application | 2-pipe / 4-pipe fan coil unit control by configuration |
| Fan control | Three-speed fan control or project-specific output |
| Valve / output | On/off valve, 0-10V or other output according to selected model |
| Smart options | WiFi, Zigbee, Tuya or Modbus by project configuration |
| OEM/ODM scope | Logo, panel, packaging, firmware and manual language support |
| Manual supply reference | 110–230 V AC, 50/60 Hz; confirm the ordered unit label |
| Manual temperature range | 5–35°C adjustable; verify the configured limits |
| Manual mounting reference | 60 mm mounting-hole spacing |
| Shared model | AE-940K |
|---|---|
| Product form | Wall-mounted FCU smart thermostat |
| Main use | Room control for fan coil unit HVAC systems |
| System check | Confirm 2-pipe / 4-pipe, valve type, fan speed and output requirement |
| Protocol route | WiFi, Zigbee, 0-10V |
| Project confirmation | Power supply, wiring, valve/fan output and target market |
Product overview
AE-940K FCU Smart Thermostat is used for fan coil unit room control in hotels, offices, apartments and commercial HVAC projects. It supports FCU buyers who need clear model selection by output type, protocol and control requirement.
This model belongs to the FCU 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.
Room temperature control for fan coil unit applications
Specify the required wireless connection and control output; confirm availability for the exact ordered version
Project matching by valve type, fan control method and voltage requirement
OEM panel, logo and packaging support for repeated project supply
Technical checklist
Exact configuration depends on project requirement, so ACMELEC confirms the real HVAC system before quotation and sample preparation.
Specification summary
| Model | AE-940K |
|---|---|
| Product family | FCU Thermostat |
| Application | Fan coil unit HVAC control |
| Protocol / function options | WiFi, Zigbee, 0-10V |
| 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 |
| HVAC system | Fan Coil Unit (FCU) |
| Control focus | Room temperature, fan and valve control |
| Function options | WiFi, Zigbee, 0-10V |
| Common projects | Hotels, offices, apartments and commercial buildings |
| Selection points | 2-pipe/4-pipe, valve type, fan speed, voltage and protocol |
Product FAQ
The English manual shows separate examples for two-pipe three-speed fan, four-pipe three-speed fan and four-pipe 0-10V fan wiring. Match the example to the ordered rear-terminal labels, fan and valve arrangement; these are different wiring routes, not simultaneous connections.
The manual distinguishes AE-940-K from AE-940-K-WIFI. Request the WiFi version for Smart Life app control and confirm the supplied hardware and setup guide. Do not infer Zigbee or Modbus support from this WiFi manual.
The linked manual describes a single timed start or timed shutdown. It does not establish a weekly multi-period schedule for every AE-940K. Confirm the timer functions and firmware required by the project before ordering.
Explore the range
FCU Thermostat
AE-5501K FCU Smart Thermostat for fan coil unit hvac control, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
FCU Thermostat
AE-5502K FCU Smart Thermostat for fan coil unit hvac control, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
FCU Thermostat
AE-5503K FCU Smart Thermostat for fan coil unit hvac control, with OEM/ODM support, smart control options and factory-direct supply from ACMELEC.
Samples, MOQ and lead time